yii2-bootstrap/tests/unit/framework/util/ArrayHelperTest.php

<?php

namespace yiiunit\framework\util;

use yii\helpers\ArrayHelper;

class ArrayHelperTest extends \yii\test\TestCase
{
	public function testMerge()
	{


	}

	public function testMultisort()
	{
		// single key
		$array = array(
			array('name' => 'b', 'age' => 3),
			array('name' => 'a', 'age' => 1),
			array('name' => 'c', 'age' => 2),
		);
		ArrayHelper::multisort($array, 'name');
		$this->assertEquals(array('name' => 'a', 'age' => 1), $array[0]);
		$this->assertEquals(array('name' => 'b', 'age' => 3), $array[1]);
		$this->assertEquals(array('name' => 'c', 'age' => 2), $array[2]);

		// multiple keys
		$array = array(
			array('name' => 'b', 'age' => 3),
			array('name' => 'a', 'age' => 2),
			array('name' => 'a', 'age' => 1),
		);
		ArrayHelper::multisort($array, array('name', 'age'));
		$this->assertEquals(array('name' => 'a', 'age' => 1), $array[0]);
		$this->assertEquals(array('name' => 'a', 'age' => 2), $array[1]);
		$this->assertEquals(array('name' => 'b', 'age' => 3), $array[2]);

		// case-insensitive
		$array = array(
			array('name' => 'a', 'age' => 3),
			array('name' => 'b', 'age' => 2),
			array('name' => 'A', 'age' => 1),
		);
		ArrayHelper::multisort($array, array('name', 'age'), SORT_ASC, array(SORT_STRING|SORT_FLAG_CASE, SORT_REGULAR));
		$this->assertEquals(array('name' => 'A', 'age' => 1), $array[0]);
		$this->assertEquals(array('name' => 'a', 'age' => 3), $array[1]);
		$this->assertEquals(array('name' => 'b', 'age' => 2), $array[2]);
	}
}