public function testObjectInstance()
{
$instance = new \DateTime();
V::validate($instance, V::object()->instance('\\DateTime'), function ($err, $output) use($instance) {
$this->assertNull($err);
$this->assertEquals($instance, $output);
});
V::validate(new \stdClass(), V::object()->instance('\\DateTime'), function ($err, $output) {
$this->assertEquals('object is not an instance of \\DateTime', $err);
$this->assertNull($output);
});
}
