I have a controller that uses a command object in a controller action. When mocking this command object in a grails' controller unit test, the hasErrors() method always returns false, even when I am purposefully violating its constraints.

 def save = { RegistrationForm form ->
  if(form.hasErrors()) {
   // code block never gets executed
  } else {
   // code block always gets executed
  }
 }

In the test itself, I do this:

 mockCommandObject(RegistrationForm)
 def form = new RegistrationForm(emailAddress: "ken.bad@gmail",
  password: "secret", confirmPassword: "wrong")

 controller.save(form)

I am purposefully giving it a bad email address, and I am making sure the password and the confirmPassword properties are different. In this case, hasErrors() should return true... but it doesn't. I don't know how my testing can be any where reliable if such a basic thing does not work :/

Here is the RegistrationForm class, so you can see the constraints I am using:

class RegistrationForm {
 def springSecurityService

 String emailAddress
 String password
 String confirmPassword

 String getEncryptedPassword() {
  springSecurityService.encodePassword(password)
 }

 static constraints = {
  emailAddress(blank: false, email: true)
  password(blank: false, minSize:4, maxSize: 10)
  confirmPassword(blank: false, validator: { confirmPassword, form ->
   confirmPassword == form.password
  })
 }
}