public function testMergeAssocArrayWithArrayObject()
{
$expected = ['x' => 1, 'y' => 2, 'z' => 2, 'a' => 1];
$xao1 = new XArray(['x' => 1, 'y' => 2, 'z' => 3]);
$xao2 = new XArray(['a' => 1, 'z' => 2]);
$obj = $xao1->merge($xao2);
$this->assertEquals($expected, (array) $obj);
}
