| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Wikibase\DataModel\Tests; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Hashable; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use InvalidArgumentException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use PHPUnit_Framework_TestCase; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Wikibase\DataModel\Entity\PropertyId; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use Wikibase\DataModel\Reference; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use Wikibase\DataModel\ReferenceList; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | use Wikibase\DataModel\Snak\PropertyNoValueSnak; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | use Wikibase\DataModel\Snak\SnakList; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * @covers Wikibase\DataModel\ReferenceList | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * @group Wikibase | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @group WikibaseDataModel | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * @group WikibaseReference | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  * @licence GNU GPL v2+ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  * @author Jeroen De Dauw < [email protected] > | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  * @author Thiemo Mättig | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | class ReferenceListTest extends PHPUnit_Framework_TestCase { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 	public function instanceProvider() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 		$instances = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 		foreach ( $this->getConstructorArg() as $arg ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 			$instances[] = array( new ReferenceList( $arg ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 		return $instances; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 	public function getElementInstances() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | 		return array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | 			new Reference(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  | 			new Reference( array( new PropertyNoValueSnak( 2 ) ) ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 			new Reference( array( new PropertyNoValueSnak( 3 ) ) ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  | 	public function getConstructorArg() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  | 		return array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 			array(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | 			$this->getElementInstances(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 	public function testCanConstructWithReferenceListObject() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  | 		$reference = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 		$original = new ReferenceList( array( $reference ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | 		$copy = new ReferenceList( $original ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | 		$this->assertSame( 1, $copy->count() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  | 		$this->assertNotNull( $copy->getReference( $reference->getHash() ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  | 	 * @dataProvider invalidConstructorArgumentsProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  | 	 * @expectedException InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  | 	public function testGivenInvalidConstructorArguments_constructorThrowsException( $input ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  | 		new ReferenceList( $input ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 	public function invalidConstructorArgumentsProvider() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | 		$id1 = new PropertyId( 'P1' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | 		return array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  | 			array( null ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  | 			array( false ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  | 			array( 1 ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  | 			array( 0.1 ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 			array( 'string' ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  | 			array( $id1 ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  | 			array( new PropertyNoValueSnak( $id1 ) ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  | 			array( new Reference() ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  | 			array( new SnakList( array( new PropertyNoValueSnak( $id1 ) ) ) ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  | 			array( array( new PropertyNoValueSnak( $id1 ) ) ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  | 			array( array( new ReferenceList() ) ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  | 			array( array( new SnakList() ) ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  | 	public function testGetIterator_isTraversable() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  | 		$references->addNewReference( new PropertyNoValueSnak( 1 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  | 		$iterator = $references->getIterator(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | 		$this->assertInstanceOf( 'Traversable', $iterator ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  | 		$this->assertCount( 1, $iterator ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  | 		foreach ( $references as $reference ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  | 			$this->assertInstanceOf( 'Wikibase\DataModel\Reference', $reference ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | 	public function testHasReferenceBeforeRemoveButNotAfter( ReferenceList $array ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  | 		if ( $array->count() === 0 ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  | 			$this->assertTrue( true ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  | 			return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  | 		/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  | 		 * @var Reference $hashable | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  | 		foreach ( iterator_to_array( $array ) as $hashable ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 			$this->assertTrue( $array->hasReference( $hashable ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | 			$array->removeReference( $hashable ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | 			$this->assertFalse( $array->hasReference( $hashable ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  | 	public function testGivenCloneOfReferenceInList_hasReferenceReturnsTrue() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  | 		$list = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  | 		$reference = new Reference( array( new PropertyNoValueSnak( 42 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  | 		$sameReference = unserialize( serialize( $reference ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  | 		$list->addReference( $reference ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  | 		$this->assertTrue( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  | 			$list->hasReference( $sameReference ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  | 			'hasReference should return true when a reference with the same value is present, even when its another instance' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  | 	public function testRemoveReference( ReferenceList $array ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  | 		$elementCount = count( $array ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  | 		/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  | 		 * @var Reference $element | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  | 		foreach ( iterator_to_array( $array ) as $element ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  | 			$this->assertTrue( $array->hasReference( $element ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  | 			$array->removeReference( $element ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  | 			$this->assertFalse( $array->hasReference( $element ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  | 			$this->assertEquals( --$elementCount, count( $array ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  | 		$elements = $this->getElementInstances(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  | 		$element = array_shift( $elements ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  | 		$array->removeReference( $element ); | 
                            
                    |  |  |  | 
                                                                                        
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                | 155 |  |  | 		$array->removeReference( $element ); | 
                            
                    |  |  |  | 
                                                                                        
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                | 156 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  | 		$this->assertTrue( true ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  | 	public function testAddReferenceOnEmptyList() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  | 		$reference = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  | 		$references->addReference( $reference ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  | 		$this->assertCount( 1, $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  | 		$expectedList = new ReferenceList( array( $reference ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  | 		$this->assertSameReferenceOrder( $expectedList, $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  | 	private function assertSameReferenceOrder( ReferenceList $expectedList, ReferenceList $references ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  | 		$this->assertEquals( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  | 			iterator_to_array( $expectedList ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  | 			iterator_to_array( $references ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  | 	public function testAddReferenceOnNonEmptyList() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  | 		$reference1 = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  | 		$reference2 = new Reference( array( new PropertyNoValueSnak( 2 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  | 		$reference3 = new Reference( array( new PropertyNoValueSnak( 3 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  | 		$references = new ReferenceList( array( $reference1, $reference2 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  | 		$references->addReference( $reference3 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  | 		$this->assertCount( 3, $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  | 		$expectedList = new ReferenceList( array( $reference1, $reference2, $reference3 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  | 		$this->assertSameReferenceOrder( $expectedList, $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  | 	public function testAddReferenceAtIndexZero() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  | 		$reference1 = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  | 		$reference2 = new Reference( array( new PropertyNoValueSnak( 2 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  | 		$reference3 = new Reference( array( new PropertyNoValueSnak( 3 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  | 		$references = new ReferenceList( array( $reference1, $reference2 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  | 		$references->addReference( $reference3, 0 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  | 		$expectedList = new ReferenceList( array( $reference3, $reference1, $reference2 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  | 		$this->assertSameReferenceOrder( $expectedList, $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  | 	public function testAddReferenceAtNegativeIndex() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  | 		$reference = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  | 		$referenceList = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  | 		$this->setExpectedException( 'InvalidArgumentException' ); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  | 		$referenceList->addReference( $reference, -1 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  | 	public function testGivenEmptyReference_addReferenceDoesNotAdd() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  | 		$reference1 = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  | 		$reference2 = new Reference( array( new PropertyNoValueSnak( 2 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  | 		$emptyReference = new Reference( array() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  | 		$references = new ReferenceList( array( $reference1, $reference2 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  | 		$references->addReference( $emptyReference ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  | 		$expectedList = new ReferenceList( array( $reference1, $reference2 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  | 		$this->assertSameReferenceOrder( $expectedList, $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  | 	public function testGivenEmptyReferenceAndIndex_addReferenceDoesNotAdd() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  | 		$reference1 = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  | 		$reference2 = new Reference( array( new PropertyNoValueSnak( 2 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  | 		$emptyReference = new Reference( array() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  | 		$references = new ReferenceList( array( $reference1, $reference2 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  | 		$references->addReference( $emptyReference, 0 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  | 		$expectedList = new ReferenceList( array( $reference1, $reference2 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  | 		$this->assertSameReferenceOrder( $expectedList, $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  | 	public function testIndexOf( ReferenceList $array ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  | 		$this->assertFalse( $array->indexOf( new Reference() ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  | 		$i = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  | 		foreach ( $array as $reference ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  | 			$this->assertEquals( $i++, $array->indexOf( $reference ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  | 	public function testIndexOf_falseForMissingReferences() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  | 		$referenceList = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  | 		$reference = new Reference( array( new PropertyNoValueSnak( 1 ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  | 		$referenceList->addNewReference( new PropertyNoValueSnak( 1 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  | 		$this->assertFalse( $referenceList->indexOf( new Reference() ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  | 		$this->assertFalse( $referenceList->indexOf( $reference ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  | 	public function testEquals( ReferenceList $array ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  | 		$this->assertTrue( $array->equals( $array ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  | 		$this->assertFalse( $array->equals( 42 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 269 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 270 |  |  | 	public function testGetValueHashReturnsString( ReferenceList $array ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 271 |  |  | 		$this->assertInternalType( 'string', $array->getValueHash() ); | 
            
                                                                        
                            
            
                                    
            
            
                | 272 |  |  | 	} | 
            
                                                                        
                            
            
                                    
            
            
                | 273 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  | 	public function testGetValueHashIsTheSameForClone( ReferenceList $array ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  | 		$copy = unserialize( serialize( $array ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  | 		$this->assertEquals( $array->getValueHash(), $copy->getValueHash() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  | 	public function testHasReferenceHash( ReferenceList $references ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  | 		$this->assertFalse( $references->hasReferenceHash( '~=[,,_,,]:3' ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  | 		/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  | 		 * @var Hashable $reference | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  | 		foreach ( $references as $reference ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  | 			$this->assertTrue( $references->hasReferenceHash( $reference->getHash() ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  | 	public function testGetReference( ReferenceList $references ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  | 		$this->assertNull( $references->getReference( '~=[,,_,,]:3' ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  | 		/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  | 		 * @var Reference $reference | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  | 		foreach ( $references as $reference ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  | 			$this->assertTrue( $reference->equals( $references->getReference( $reference->getHash() ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  | 	 * @dataProvider instanceProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  | 	public function testRemoveReferenceHash( ReferenceList $references ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  | 		$references->removeReferenceHash( '~=[,,_,,]:3' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  | 		$hashes = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  | 		/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  | 		 * @var Reference $reference | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  | 		foreach ( $references as $reference ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 322 |  |  | 			$hashes[] = $reference->getHash(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 323 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 324 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 325 |  |  | 		foreach ( $hashes as $hash ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 326 |  |  | 			$references->removeReferenceHash( $hash ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 327 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 328 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 329 |  |  | 		$this->assertEquals( 0, count( $references ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 330 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 331 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 332 |  |  | 	public function testGivenOneSnak_addNewReferenceAddsSnak() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 333 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 334 |  |  | 		$snak = new PropertyNoValueSnak( 1 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 335 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 336 |  |  | 		$references->addNewReference( $snak ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 337 |  |  | 		$this->assertTrue( $references->hasReference( new Reference( array( $snak ) ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 338 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 339 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 340 |  |  | 	public function testGivenMultipleSnaks_addNewReferenceAddsThem() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 341 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 342 |  |  | 		$snak1 = new PropertyNoValueSnak( 1 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 343 |  |  | 		$snak2 = new PropertyNoValueSnak( 3 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 344 |  |  | 		$snak3 = new PropertyNoValueSnak( 2 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 345 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 346 |  |  | 		$references->addNewReference( $snak1, $snak2, $snak3 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 347 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 348 |  |  | 		$expectedSnaks = array( $snak1, $snak2, $snak3 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 349 |  |  | 		$this->assertTrue( $references->hasReference( new Reference( $expectedSnaks ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 350 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 351 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 352 |  |  | 	public function testGivenAnArrayOfSnaks_addNewReferenceAddsThem() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 353 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 354 |  |  | 		$snaks = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 355 |  |  | 			new PropertyNoValueSnak( 1 ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 356 |  |  | 			new PropertyNoValueSnak( 3 ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 357 |  |  | 			new PropertyNoValueSnak( 2 ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 358 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 359 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 360 |  |  | 		$references->addNewReference( $snaks ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 361 |  |  | 		$this->assertTrue( $references->hasReference( new Reference( $snaks ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 362 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 363 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 364 |  |  | 	public function testGivenNoneSnak_addNewReferenceThrowsException() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 365 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 366 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 367 |  |  | 		$this->setExpectedException( 'InvalidArgumentException' ); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 368 |  |  | 		$references->addNewReference( new PropertyNoValueSnak( 1 ), null ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 369 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 370 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 371 |  |  | 	public function testSerializationStability() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 372 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 373 |  |  | 		$this->assertSame( 'a:0:{}', $references->serialize() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 374 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 375 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 376 |  |  | 	public function testSerializeRoundtrip() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 377 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 378 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 379 |  |  | 		$references->addReference( new Reference() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 380 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 381 |  |  | 		$references->addReference( new Reference( array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 382 |  |  | 			new PropertyNoValueSnak( 2 ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 383 |  |  | 			new PropertyNoValueSnak( 3 ), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 384 |  |  | 		) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 385 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 386 |  |  | 		$serialized = serialize( $references ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 387 |  |  | 		$this->assertTrue( $references->equals( unserialize( $serialized ) ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 388 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 389 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 390 |  |  | 	public function testGivenEmptyList_isEmpty() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 391 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 392 |  |  | 		$this->assertTrue( $references->isEmpty() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 393 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 394 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 395 |  |  | 	public function testGivenNonEmptyList_isNotEmpty() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 396 |  |  | 		$references = new ReferenceList(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 397 |  |  | 		$references->addNewReference( new PropertyNoValueSnak( 1 ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 398 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 399 |  |  | 		$this->assertFalse( $references->isEmpty() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 400 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 401 |  |  |  | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 402 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 403 |  |  |  | 
            
                        
Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: