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<?php |
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namespace Tests\Queryr\Replicator\EntitySource; |
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use PHPUnit\Framework\TestCase; |
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use Queryr\Replicator\EntitySource\BatchingEntityPageFetcher; |
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use Tests\Queryr\Replicator\Fixtures\FakeEntityPageBatchFetcher; |
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/** |
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* @covers \Queryr\Replicator\EntitySource\BatchingEntityPageFetcher |
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* |
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* @licence GNU GPL v2+ |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class BatchingEntityPageFetcherTest extends TestCase { |
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public function testGivenNoPagesToFetch_noneAreReturned() { |
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$fetcher = $this->newFetcherForPages( [] ); |
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$this->assertSame( [], $fetcher->fetchNext( 10 ) ); |
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$this->assertSame( [], $fetcher->fetchNext( 10 ) ); |
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} |
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private function newFetcherForPages( array $entityIds, array $idsToIgnore = [] ) { |
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return new BatchingEntityPageFetcher( new FakeEntityPageBatchFetcher( $idsToIgnore ), $entityIds ); |
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} |
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public function testRewind() { |
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$fetcher = $this->newFetcherForPages( [ 'Q1', 'Q2', 'Q3' ] ); |
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$fetcher->fetchNext( 2 ); |
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$fetcher->rewind(); |
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$this->assertSame( [ 'Q1', 'Q2' ], $fetcher->fetchNext( 2 ) ); |
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} |
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public function testProgressionThroughArray() { |
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$fetcher = $this->newFetcherForPages( [ 'Q1', 'Q2', 'Q3' ] ); |
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$this->assertSame( [ 'Q1', 'Q2' ], $fetcher->fetchNext( 2 ) ); |
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$this->assertSame( [ 'Q3' ], $fetcher->fetchNext( 2 ) ); |
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$this->assertSame( [], $fetcher->fetchNext( 2 ) ); |
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} |
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public function testWhenAtInitialPosition_addingNewPagesWorks() { |
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$fetcher = $this->newFetcherForPages( [ 'Q1', 'Q2', 'Q3' ] ); |
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$fetcher->addPagesToFetch( [ 'Q4' ] ); |
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$this->assertSame( [ 'Q1', 'Q2', 'Q3', 'Q4' ], $fetcher->fetchNext( 5 ) ); |
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} |
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public function testWhenPartiallyIterated_addingNewPagesWorks() { |
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$fetcher = $this->newFetcherForPages( [ 'Q1', 'Q2', 'Q3' ] ); |
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$fetcher->fetchNext( 2 ); |
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$fetcher->addPagesToFetch( [ 'Q4' ] ); |
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$this->assertSame( [ 'Q3', 'Q4' ], $fetcher->fetchNext( 2 ) ); |
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} |
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public function testWhenFetchedBeyondTheLastPage_newlyAddedPagesAreStillFetchedOnNextCall() { |
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$fetcher = $this->newFetcherForPages( [ 'Q1', 'Q2' ] ); |
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$fetcher->fetchNext( 3 ); |
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$fetcher->addPagesToFetch( [ 'Q3', 'Q4' ] ); |
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$this->assertSame( [ 'Q3', 'Q4' ], $fetcher->fetchNext( 3 ) ); |
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} |
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public function testWhenPartiallyIterated_additionOfDuplicatesGetsIgnored() { |
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$fetcher = $this->newFetcherForPages( [ 'Q1', 'Q2', 'Q3' ] ); |
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$fetcher->fetchNext( 2 ); |
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$fetcher->addPagesToFetch( [ 'Q1', 'Q4', 'Q3' ] ); |
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$this->assertSame( [ 'Q3', 'Q4' ], $fetcher->fetchNext( 3 ) ); |
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} |
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public function testWhenFullBatchIsEmpty_theNextBatchIsRequested() { |
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$fetcher = $this->newFetcherForPages( |
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[ 'Q1', 'Q2', 'Q3', 'Q4', 'Q5' ], // These IDs are requested |
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[ 'Q1', 'Q2', 'Q3' ] // These IDs are not found |
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); |
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$this->assertSame( [ 'Q4', 'Q5' ], $fetcher->fetchNext( 3 ) ); |
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} |
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} |
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JeroenDeDauw /
Replicator
