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<?php |
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declare( strict_types = 1 ); |
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namespace Diff\Tests\Patcher; |
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use Diff\DiffOp\Diff\Diff; |
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use Diff\DiffOp\DiffOpAdd; |
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use Diff\DiffOp\DiffOpRemove; |
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use Diff\Patcher\ListPatcher; |
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use Diff\Patcher\Patcher; |
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use Diff\Tests\DiffTestCase; |
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use stdClass; |
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/** |
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* @covers Diff\Patcher\ListPatcher |
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* @covers Diff\Patcher\ThrowingPatcher |
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* |
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* @group Diff |
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* @group DiffPatcher |
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* |
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* @license GPL-2.0+ |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class ListPatcherTest extends DiffTestCase { |
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public function patchProvider() { |
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$argLists = array(); |
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$patcher = new ListPatcher(); |
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$base = array(); |
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$diff = new Diff(); |
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$expected = array(); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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$patcher = new ListPatcher(); |
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$base = array( 4, 2 ); |
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$diff = new Diff(); |
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$expected = array( 4, 2 ); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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$patcher = new ListPatcher(); |
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$base = array(); |
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$diff = new Diff( array( |
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new DiffOpAdd( 9001 ) |
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) ); |
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$expected = array( 9001 ); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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$patcher = new ListPatcher(); |
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$base = array( 4, 2 ); |
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$diff = new Diff( array( |
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new DiffOpAdd( 9001 ) |
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) ); |
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$expected = array( 4, 2, 9001 ); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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$patcher = new ListPatcher(); |
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$base = array( 4, 2 ); |
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$diff = new Diff( array( |
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new DiffOpAdd( 9001 ), |
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new DiffOpAdd( 9002 ), |
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new DiffOpAdd( 2 ) |
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) ); |
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$expected = array( 4, 2, 9001, 9002, 2 ); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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$patcher = new ListPatcher(); |
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$base = array( 0, 1, 2, 3, 4 ); |
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$diff = new Diff( array( |
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new DiffOpRemove( 2 ), |
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new DiffOpRemove( 3 ), |
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) ); |
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$expected = array( 0, 1, 4 ); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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$patcher = new ListPatcher(); |
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$base = array( 0, 1, 2, 2, 2, 3, 4 ); |
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$diff = new Diff( array( |
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new DiffOpRemove( 2 ), |
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new DiffOpRemove( 3 ), |
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new DiffOpAdd( 6 ), |
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new DiffOpRemove( 2 ), |
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) ); |
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$expected = array( 0, 1, 2, 4, 6 ); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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$patcher = new ListPatcher(); |
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$base = array( |
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$this->newObject( 'foo' ), |
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$this->newObject( 'bar' ), |
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); |
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$diff = new Diff( array( |
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new DiffOpRemove( $this->newObject( 'foo') ), |
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new DiffOpAdd( $this->newObject( 'baz' ) ), |
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) ); |
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$expected = array( $this->newObject( 'bar' ), $this->newObject( 'baz' ) ); |
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$argLists[] = array( $patcher, $base, $diff, $expected ); |
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return $argLists; |
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} |
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private function newObject( $value ) : stdClass { |
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$object = new stdClass(); |
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$object->element = $value; |
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return $object; |
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} |
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/** |
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* @dataProvider patchProvider |
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* |
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* @param Patcher $patcher |
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* @param array $base |
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* @param Diff $diff |
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* @param array $expected |
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*/ |
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public function testPatch( Patcher $patcher, array $base, Diff $diff, array $expected ) { |
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$actual = $patcher->patch( $base, $diff ); |
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$this->assertArrayEquals( $expected, $actual ); |
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} |
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/** |
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* @dataProvider getApplicableDiffProvider |
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* |
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* @param Diff $diff |
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* @param array $currentObject |
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* @param Diff $expected |
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* @param string|null $message |
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*/ |
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public function testGetApplicableDiff( Diff $diff, array $currentObject, Diff $expected, $message = null ) { |
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$patcher = new ListPatcher(); |
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$actual = $patcher->getApplicableDiff( $currentObject, $diff ); |
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$this->assertEquals( $expected->getOperations(), $actual->getOperations(), $message ); |
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} |
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public function getApplicableDiffProvider() { |
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// Diff, current object, expected |
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$argLists = array(); |
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$diff = new Diff( array(), false ); |
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$currentObject = array(); |
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$expected = clone $diff; |
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$argLists[] = array( $diff, $currentObject, $expected, 'Empty diff should remain empty on empty base' ); |
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$diff = new Diff( array(), false ); |
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$currentObject = array( 'foo' => 0, 'bar' => 1 ); |
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$expected = clone $diff; |
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$argLists[] = array( $diff, $currentObject, $expected, 'Empty diff should remain empty on non-empty base' ); |
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$diff = new Diff( array( |
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new DiffOpRemove( 9001 ), |
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), false ); |
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$currentObject = array(); |
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$expected = new Diff( array(), false ); |
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$argLists[] = array( $diff, $currentObject, $expected, 'Remove ops should be removed on empty base' ); |
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$diff = new Diff( array( |
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new DiffOpAdd( 42 ), |
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new DiffOpRemove( 9001 ), |
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), false ); |
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$currentObject = array(); |
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$expected = new Diff( array( |
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new DiffOpAdd( 42 ), |
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), true ); |
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$argLists[] = array( |
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$diff, |
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$currentObject, |
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$expected, |
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'Add ops not present in the base should be retained (ListDiff)' |
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); |
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$diff = new Diff( array( |
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new DiffOpAdd( 42 ), |
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new DiffOpRemove( 9001 ), |
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), false ); |
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$currentObject = array( 1, 42, 9001 ); |
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$expected = new Diff( array( |
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new DiffOpAdd( 42 ), |
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new DiffOpRemove( 9001 ), |
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), false ); |
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$argLists[] = array( |
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$diff, |
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$currentObject, |
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$expected, |
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'Add ops with values present in the base should be retained in ListDiff' |
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); |
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$diff = new Diff( array( |
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new DiffOpAdd( 42 ), |
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), false ); |
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$currentObject = array(); |
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$expected = clone $diff; |
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$argLists[] = array( |
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$diff, |
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$currentObject, |
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$expected, |
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'list diffs containing only add ops should be retained even when not in the base' |
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); |
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$diff = new Diff( array( |
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new DiffOpRemove( 42 ), |
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new DiffOpRemove( 9001 ), |
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), false ); |
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$currentObject = array( |
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42, |
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72010, |
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9001, |
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); |
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$expected = clone $diff; |
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$argLists[] = array( |
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$diff, |
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$currentObject, |
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$expected, |
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'list diffs containing only remove ops should be retained when present in the base' |
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); |
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return $argLists; |
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} |
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public function testPatchMapRaisesError() { |
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$patcher = new ListPatcher(); |
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$patcher->patch( array(), new Diff( array(), true ) ); |
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$patcher->throwErrors(); |
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$this->expectException( 'Diff\Patcher\PatcherException' ); |
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$patcher->patch( array(), new Diff( array(), true ) ); |
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} |
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} |
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