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<?php |
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namespace itertools; |
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use PHPUnit_Framework_TestCase; |
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class LookAheadIteratorTest extends PHPUnit_Framework_TestCase |
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{ |
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/** @test */ |
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public function testBasicIteration() |
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{ |
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$it = new LookAheadIterator(range(0, 10)); |
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$this->assertEquals(range(0, 10), iterator_to_array($it), 'The LookAheadIterator should not modify the inner iterator'); |
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} |
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/** @test */ |
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public function testSimpleLookAheads() |
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{ |
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$it = new LookAheadIterator(range(0, 10)); |
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$i = 0; |
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foreach($it as $key => $value) { |
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$this->assertEquals($i, $value); |
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if($key < 10) { |
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$this->assertEquals($it->getNext(), $i + 1); |
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} |
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$this->assertEquals($i, $value); |
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$this->assertEquals($i, $key); |
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$i += 1; |
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} |
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} |
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/** @test */ |
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public function testLookAheadWithoutRewind() |
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{ |
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$it = new LookAheadIterator(range(0, 10)); |
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$this->assertEquals(10, $it->getNext(10)); |
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$this->assertEquals(range(0, 10), iterator_to_array($it)); |
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} |
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/** @test */ |
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public function testKeyLookAhead() |
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{ |
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$it = new LookAheadIterator(range(1, 10)); |
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$this->assertEquals(9, $it->getNextKey(9)); |
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$this->assertEquals(10, $it->getNext(9)); |
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} |
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/** |
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* @test |
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* @expectedException OutOfBoundsException |
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*/ |
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public function testOutOfBounds() |
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{ |
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$it = new LookAheadIterator(array()); |
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$it->getNext(); |
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} |
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/** @test */ |
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public function testHasNext() |
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{ |
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$it = new LookAheadIterator(range(0, 10)); |
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$i = 0; |
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foreach($it as $e) { |
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$this->assertEquals($it->hasNext(), $e < 10); |
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$i += 1; |
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} |
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} |
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} |
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SuRaMoN /
itertools
