public function Test_of_countErrors() { $Person = new TestPerson(); $this->assertEqual($Person->countErrors(), 0); $Person->addError('user_name'); $this->assertEqual($Person->countErrors(), 1); $Person->addError('user_name', 'has an error'); $this->assertEqual($Person->countErrors(), 2); $Person->addError('password'); $this->assertEqual($Person->countErrors(), 3); }