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Add Collection::transpose method (#8957)
* Add transpose method to collection class * Revert composer.json file * Remove TransposeIterator subclass * Remove double lines * Use standard CakePHP file header * Handle uneven length array * Remove debug line * Remove some space to please lint * Throw LogicException if arrays do not share the same length * Use a local variable to keep array value * Use current() instead of first() * Use toList() instead of toArray() to preserve all values
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tests/TestCase/Collection/Iterator/TransposeIteratorTest.php
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<?php | ||
/** | ||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org) | ||
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) | ||
* | ||
* Licensed under The MIT License | ||
* For full copyright and license information, please see the LICENSE.txt | ||
* Redistributions of files must retain the above copyright notice. | ||
* | ||
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) | ||
* @link http://cakephp.org CakePHP(tm) Project | ||
* @since 3.3.0 | ||
* @license http://www.opensource.org/licenses/mit-license.php MIT License | ||
*/ | ||
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namespace Cake\Test\TestCase\Collection\Iterator; | ||
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use Cake\Collection\Collection; | ||
use Cake\TestSuite\TestCase; | ||
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class TransposeIteratorTest extends TestCase | ||
{ | ||
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public function testTranspose() | ||
{ | ||
$collection = new Collection([ | ||
['Products', '2012', '2013', '2014'], | ||
['Product A', '200', '100', '50'], | ||
['Product B', '300', '200', '100'], | ||
['Product C', '400', '300', '200'], | ||
]); | ||
$transposed = $collection->transpose(); | ||
$expected = [ | ||
['Products', 'Product A', 'Product B', 'Product C'], | ||
['2012', '200', '300', '400'], | ||
['2013', '100', '200', '300'], | ||
['2014', '50', '100', '200'], | ||
]; | ||
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$this->assertEquals($expected, $transposed->toList()); | ||
} | ||
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/** | ||
* Tests that provided arrays do not have even length | ||
* | ||
* @expectedException \LogicException | ||
* @return void | ||
*/ | ||
public function testTransposeUnEvenLengthShouldThrowException() | ||
{ | ||
$collection = new Collection([ | ||
['Products', '2012', '2013', '2014'], | ||
['Product A', '200', '100', '50'], | ||
['Product B', '300'], | ||
['Product C', '400', '300'], | ||
]); | ||
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$collection->transpose(); | ||
} | ||
} |