lithium\test\Unit::assertInstanceOf()
Assert that $actual is an instance of $expected.
$this->assertInstanceOf('stdClass', new stdClass); // succeeds
$this->assertInstanceOf('ReflectionClass', new stdClass); // fails
					Parameters
- 
							string
							
$expectedFully namespaced expected class.
 - 
							object
							
$actualObject you are testing.
 - 
							string|boolean
							
$message 
Returns
booleantrue if the assertion succeeded, false otherwise.
Source
	public function assertInstanceOf($expected, $actual, $message = '{:message}') {
		return $this->assert(is_a($actual, $expected), $message, array(
			'expected' => $expected,
			'result' => get_class($actual)
		));
	}