unittest private method in php

testPrivateProtected.php

// http://www.webtipblog.com/unit-testing-private-methods-and-properties-with-phpunit/

class Foo {
		private $foobar;
 		private function bar( $number ) 
		{
			// keep me private!
		}
	}

//------------
 	/**
 	 * testBar
 	 *
 	 * @author	Joe Sexton <joe@webtipblog.com>
 	 */
	public function testBar()
	{
		$number = 1;
 
		$object = new Foo();
		$reflector = new ReflectionClass( 'Foo' );
		$method = $reflector->getMethod( 'bar' );
		$method->setAccessible( true );
 
		$result = $method->invokeArgs( $object, array( $number ) );
 
		$this->assertEquals( 1, $result ); // whatever your assertion is
 
	}