InMemoryEntityIdPagerTest::testReturnsEmptyArrayWhenThereAreNoIds() - Code Metrics - Inspection of "Merge pull request #214 from wmde/SeekableEntityId..." - wmde/WikibaseDataModelServices - Measure and Improve Code Quality continuously with Scrutinizer

Passed

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by Alaa

created 2019-04-16 15:57 UTC

testReturnsEmptyArrayWhenThereAreNoIds() A

↳ Parent: InMemoryEntityIdPagerTest

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	6
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	0

<?php

namespace Wikibase\DataModel\Services\Tests\EntityId;

use PHPUnit\Framework\TestCase;
use Wikibase\DataModel\Entity\ItemId;
use Wikibase\DataModel\Services\EntityId\InMemoryEntityIdPager;

/**
 * @covers \Wikibase\DataModel\Services\EntityId\InMemoryEntityIdPager
 *
 * @license GPL-2.0-or-later
 */
class InMemoryEntityIdPagerTest extends TestCase {

	public function testReturnsEmptyArrayWhenThereAreNoIds() {
		$this->assertSame(
			[],
			( new InMemoryEntityIdPager() )->fetchIds( 10 )
		);
	}

	public function testReturnsTheFirstIdsUpToLimit() {
		$pager = new InMemoryEntityIdPager(
			new ItemId( 'Q1' ),
			new ItemId( 'Q2' ),
			new ItemId( 'Q3' ),
			new ItemId( 'Q4' ),
			new ItemId( 'Q5' )
		);

		$this->assertEquals(
			[
				new ItemId( 'Q1' ),
				new ItemId( 'Q2' ),
			],
			$pager->fetchIds( 2 )
		);
	}

	public function testReturnsLessItemsIfThereAreFew() {
		$pager = new InMemoryEntityIdPager(
			new ItemId( 'Q1' ),
			new ItemId( 'Q2' )
		);

		$this->assertEquals(
			[
				new ItemId( 'Q1' ),
				new ItemId( 'Q2' ),
			],
			$pager->fetchIds( 5 )
		);
	}

	public function testReturnsNextBatch() {
		$pager = new InMemoryEntityIdPager(
			new ItemId( 'Q1' ),
			new ItemId( 'Q2' ),
			new ItemId( 'Q3' ),
			new ItemId( 'Q4' ),
			new ItemId( 'Q5' )
		);

		$pager->fetchIds( 2 );

		$this->assertEquals(
			[
				new ItemId( 'Q3' ),
				new ItemId( 'Q4' ),
			],
			$pager->fetchIds( 2 )
		);
	}

	public function testCanResumeFromPosition() {
		$firstPager = new InMemoryEntityIdPager(
			new ItemId( 'Q1' ),
			new ItemId( 'Q2' ),
			new ItemId( 'Q3' ),
			new ItemId( 'Q4' ),
			new ItemId( 'Q5' )
		);

		$secondPager = new InMemoryEntityIdPager(
			new ItemId( 'Q1' ),
			new ItemId( 'Q2' ),
			new ItemId( 'Q3' ),
			new ItemId( 'Q4' ),
			new ItemId( 'Q5' )
		);

		$firstPager->fetchIds( 2 );
		$secondPager->setPosition( $firstPager->getPosition() );

		$this->assertEquals(
			[
				new ItemId( 'Q3' ),
				new ItemId( 'Q4' ),
			],
			$secondPager->fetchIds( 2 )
		);
	}

	public function testCanAddIds() {
		$pager = new InMemoryEntityIdPager(
			new ItemId( 'Q1' )
		);

		$pager->addEntityId( new ItemId( 'Q2' ) );

		$this->assertEquals(
			[
				new ItemId( 'Q1' ),
				new ItemId( 'Q2' ),
			],
			$pager->fetchIds( 2 )
		);
	}

}


1			<?php
2
3			namespace Wikibase\DataModel\Services\Tests\EntityId;
4
5			use PHPUnit\Framework\TestCase;
6			use Wikibase\DataModel\Entity\ItemId;
7			use Wikibase\DataModel\Services\EntityId\InMemoryEntityIdPager;
8
9			/**
10			* @covers \Wikibase\DataModel\Services\EntityId\InMemoryEntityIdPager
11			*
12			* @license GPL-2.0-or-later
13			*/
14			class InMemoryEntityIdPagerTest extends TestCase {
15
16			public function testReturnsEmptyArrayWhenThereAreNoIds() {
17			$this->assertSame(
18			[],
19			( new InMemoryEntityIdPager() )->fetchIds( 10 )
20			);
21			}
22
23			public function testReturnsTheFirstIdsUpToLimit() {
24			$pager = new InMemoryEntityIdPager(
25			new ItemId( 'Q1' ),
26			new ItemId( 'Q2' ),
27			new ItemId( 'Q3' ),
28			new ItemId( 'Q4' ),
29			new ItemId( 'Q5' )
30			);
31
32			$this->assertEquals(
33			[
34			new ItemId( 'Q1' ),
35			new ItemId( 'Q2' ),
36			],
37			$pager->fetchIds( 2 )
38			);
39			}
40
41			public function testReturnsLessItemsIfThereAreFew() {
42			$pager = new InMemoryEntityIdPager(
43			new ItemId( 'Q1' ),
44			new ItemId( 'Q2' )
45			);
46
47			$this->assertEquals(
48			[
49			new ItemId( 'Q1' ),
50			new ItemId( 'Q2' ),
51			],
52			$pager->fetchIds( 5 )
53			);
54			}
55
56			public function testReturnsNextBatch() {
57			$pager = new InMemoryEntityIdPager(
58			new ItemId( 'Q1' ),
59			new ItemId( 'Q2' ),
60			new ItemId( 'Q3' ),
61			new ItemId( 'Q4' ),
62			new ItemId( 'Q5' )
63			);
64
65			$pager->fetchIds( 2 );
66
67			$this->assertEquals(
68			[
69			new ItemId( 'Q3' ),
70			new ItemId( 'Q4' ),
71			],
72			$pager->fetchIds( 2 )
73			);
74			}
75
76			public function testCanResumeFromPosition() {
77			$firstPager = new InMemoryEntityIdPager(
78			new ItemId( 'Q1' ),
79			new ItemId( 'Q2' ),
80			new ItemId( 'Q3' ),
81			new ItemId( 'Q4' ),
82			new ItemId( 'Q5' )
83			);
84
85			$secondPager = new InMemoryEntityIdPager(
86			new ItemId( 'Q1' ),
87			new ItemId( 'Q2' ),
88			new ItemId( 'Q3' ),
89			new ItemId( 'Q4' ),
90			new ItemId( 'Q5' )
91			);
92
93			$firstPager->fetchIds( 2 );
94			$secondPager->setPosition( $firstPager->getPosition() );
95
96			$this->assertEquals(
97			[
98			new ItemId( 'Q3' ),
99			new ItemId( 'Q4' ),
100			],
101			$secondPager->fetchIds( 2 )
102			);
103			}
104
105			public function testCanAddIds() {
106			$pager = new InMemoryEntityIdPager(
107			new ItemId( 'Q1' )
108			);
109
110			$pager->addEntityId( new ItemId( 'Q2' ) );
111
112			$this->assertEquals(
113			[
114			new ItemId( 'Q1' ),
115			new ItemId( 'Q2' ),
116			],
117			$pager->fetchIds( 2 )
118			);
119			}
120
121			}
122

wmde / WikibaseDataModelServices

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testReturnsEmptyArrayWhenThereAreNoIds() A

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