Grails 2.1 Unit Testing Command Object mockForConstraintsTests not working?

Question

I have used manually written as well as Grails generated Unit tests for this command object:

   package myapp

    @grails.validation.Validateable
    class          


        

Answer 1

You are using the validate method incorrectly. You never set the field on the class, so the field is null, not blank. Try changing your test as follows:

void testSomething() {
    SearchCommand commandUnderTest = new SearchCommand()
    commandUnderTest.basisBuild = ""

    assertFalse commandUnderTest.validate()
    assertEquals 'blank', commandUnderTest.errors['basisBuild']
}

Edit: There is also a grails bug when testing command classes that use the @Validatable annotation. There are some workarounds in the bug commentary.