class DiffArrayTest

class DiffArrayTest extends TestCase {
  
  /**
   * Array to use for testing.
   *
   * @var array
   */
  protected $array1;
  
  /**
   * Array to use for testing.
   *
   * @var array
   */
  protected $array2;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->array1 = [
      'same' => 'yes',
      'different' => 'no',
      'array_empty_diff' => [],
      'null' => NULL,
      'int_diff' => 1,
      'array_diff' => [
        'same' => 'same',
        'array' => [
          'same' => 'same',
        ],
      ],
      'array_compared_to_string' => [
        'value',
      ],
      'string_compared_to_array' => 'value',
      'new' => 'new',
    ];
    $this->array2 = [
      'same' => 'yes',
      'different' => 'yes',
      'array_empty_diff' => [],
      'null' => NULL,
      'int_diff' => '1',
      'array_diff' => [
        'same' => 'different',
        'array' => [
          'same' => 'same',
        ],
      ],
      'array_compared_to_string' => 'value',
      'string_compared_to_array' => [
        'value',
      ],
    ];
  }
  
  /**
   * Tests DiffArray::diffAssocRecursive().
   */
  public function testDiffAssocRecursive() : void {
    $expected = [
      'different' => 'no',
      'int_diff' => 1,
      // The 'array' key should not be returned, as it's the same.
'array_diff' => [
        'same' => 'same',
      ],
      'array_compared_to_string' => [
        'value',
      ],
      'string_compared_to_array' => 'value',
      'new' => 'new',
    ];
    $this->assertSame($expected, DiffArray::diffAssocRecursive($this->array1, $this->array2));
  }

}