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<?php |
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namespace Jasny\Tests; |
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use PHPUnit\Framework\TestCase; |
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use function Jasny\iterable_group; |
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/** |
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* @covers \Jasny\iterable_group |
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*/ |
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class IterableGroupTest extends TestCase |
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{ |
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use ProvideIterablesTrait; |
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use LazyExecutionIteratorTrait; |
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public function provider() |
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{ |
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$objects = [ |
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(object)['type' => 'one'], |
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(object)['type' => 'two'], |
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(object)['type' => 'one'], |
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(object)['type' => 'three'], |
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(object)['type' => 'one'], |
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(object)['type' => 'two'] |
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]; |
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return $this->provideIterables($objects); |
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} |
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/** |
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* @dataProvider provider |
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*/ |
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public function test($iterable, $objects) |
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{ |
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$iterator = iterable_group($iterable, function(\stdClass $object) { |
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return $object->type; |
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}); |
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$result = iterator_to_array($iterator); |
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$expected = [ |
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'one' => [ |
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$objects[0], |
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$objects[2], |
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$objects[4] |
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], |
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'two' => [ |
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$objects[1], |
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$objects[5] |
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], |
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'three' => [ |
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$objects[3] |
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] |
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]; |
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$this->assertSame($expected, $result); |
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} |
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public function testMixed() |
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{ |
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$parents = [ |
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new \stdClass(), |
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new \stdClass(), |
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null |
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]; |
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$objects = [ |
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(object)['type' => $parents[0]], |
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(object)['type' => $parents[1]], |
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(object)['type' => $parents[0]], |
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(object)['type' => null], |
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(object)['type' => $parents[0]], |
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(object)['type' => $parents[1]] |
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]; |
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$iterator = iterable_group($objects, function(\stdClass $object) { |
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return $object->type; |
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}); |
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$resultKeys = []; |
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$resultValues = []; |
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foreach ($iterator as $key => $value) { |
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$resultKeys[] = $key; |
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$resultValues[] = $value; |
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} |
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$expectedValues = [ |
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[ |
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$objects[0], |
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$objects[2], |
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$objects[4] |
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], |
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[ |
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$objects[1], |
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$objects[5] |
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], |
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[ |
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$objects[3] |
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] |
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]; |
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$this->assertSame($parents, $resultKeys); |
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$this->assertSame($expectedValues, $resultValues); |
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} |
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public function testKey() |
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{ |
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$values = ['alpha' => 'one', 'bat' => 'two', 'apple' => 'three', 'cat' => 'four', 'air' => 'five', |
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'beast' => 'six']; |
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$iterator = iterable_group($values, function($value, $key) { |
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return substr($key, 0, 1); |
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}); |
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$result = iterator_to_array($iterator); |
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$expected = [ |
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'a' => ['one', 'three', 'five'], |
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'b' => ['two', 'six'], |
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'c' => ['four'] |
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]; |
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$this->assertSame($expected, $result); |
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} |
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public function testEmpty() |
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{ |
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$iterator = iterable_group(new \EmptyIterator(), function() {}); |
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$result = iterator_to_array($iterator); |
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$this->assertEquals([], $result); |
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} |
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/** |
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* Test that nothing happens when not iterating |
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*/ |
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public function testLazyExecution() |
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{ |
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$iterator = $this->createLazyExecutionIterator(); |
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iterable_group($iterator, function() {}); |
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$this->assertTrue(true, "No warning"); |
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} |
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} |
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jasny /
improved-php-iterable
