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<?php |
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declare( strict_types = 1 ); |
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namespace Tests\BatchingIterator; |
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use BatchingIterator\Fetchers\InMemoryBatchingFetcher; |
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use BatchingIterator\Fetchers\MultipleBatchingFetcher; |
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use PHPUnit\Framework\TestCase; |
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/** |
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* @covers BatchingIterator\Fetchers\MultipleBatchingFetcher |
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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 MultipleBatchingFetcherTest extends TestCase { |
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public function testGivenNonFetcher_constructorThrowsException() { |
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$this->expectException( 'InvalidArgumentException' ); |
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new MultipleBatchingFetcher( |
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new InMemoryBatchingFetcher( [] ), |
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new InMemoryBatchingFetcher( [] ), |
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null, |
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new InMemoryBatchingFetcher( [] ) |
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); |
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} |
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public function testGivenOneFetcher_behaviourIsNotAltered() { |
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$values = [ 'foo', 'bar', 'baz' ]; |
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$fetcher = new MultipleBatchingFetcher( new InMemoryBatchingFetcher( $values ) ); |
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$this->assertEquals( $values, $fetcher->fetchNext( 4 ) ); |
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$this->assertEquals( [], $fetcher->fetchNext( 4 ) ); |
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} |
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public function testGivenMultipleFetchers_allValuesCanBeFetched() { |
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$fetcher = new MultipleBatchingFetcher( |
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new InMemoryBatchingFetcher( [ 'foo', 'bar', 'baz' ] ), |
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new InMemoryBatchingFetcher( [ '0', '1' ] ), |
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new InMemoryBatchingFetcher( [] ), |
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new InMemoryBatchingFetcher( [ '2' ] ) |
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); |
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$this->assertEquals( [ 'foo', 'bar' ], $fetcher->fetchNext( 2 ) ); |
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$this->assertEquals( [ 'baz' ], $fetcher->fetchNext( 2 ) ); |
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$this->assertEquals( [ '0', '1' ], $fetcher->fetchNext( 3 ) ); |
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$this->assertEquals( [ '2' ], $fetcher->fetchNext( 3 ) ); |
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$this->assertEquals( [], $fetcher->fetchNext( 3 ) ); |
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} |
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public function testGivenMultipleFetchers_rewindWorksCorrectly() { |
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$fetcher = new MultipleBatchingFetcher( |
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new InMemoryBatchingFetcher( [ 'foo', 'bar', 'baz' ] ), |
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new InMemoryBatchingFetcher( [] ), |
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new InMemoryBatchingFetcher( [ '0', '1' ] ), |
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new InMemoryBatchingFetcher( [ '2' ] ) |
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); |
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$fetcher->fetchNext( 2 ); |
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$fetcher->fetchNext( 2 ); |
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$fetcher->fetchNext( 2 ); |
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$fetcher->rewind(); |
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$this->assertEquals( [ 'foo' ], $fetcher->fetchNext( 1 ) ); |
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} |
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public function testCanConstructWithArray() { |
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new MultipleBatchingFetcher( [ |
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new InMemoryBatchingFetcher( [] ), |
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new InMemoryBatchingFetcher( [] ) |
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] ); |
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$this->assertTrue( true ); |
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} |
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public function testGivenArrayAndFetchers_constructorThrowsException() { |
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$this->expectException( 'InvalidArgumentException' ); |
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new MultipleBatchingFetcher( |
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[ |
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new InMemoryBatchingFetcher( [] ), |
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new InMemoryBatchingFetcher( [] ) |
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], |
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new InMemoryBatchingFetcher( [] ) |
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); |
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} |
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public function testGivenArrayWithNonFetcher_constructorThrowsException() { |
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$this->expectException( 'InvalidArgumentException' ); |
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new MultipleBatchingFetcher( |
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[ |
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new InMemoryBatchingFetcher( [] ), |
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new InMemoryBatchingFetcher( [] ), |
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null, |
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new InMemoryBatchingFetcher( [] ) |
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] |
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); |
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} |
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} |
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JeroenDeDauw /
BatchingIterator
