Grails: How to mock a domain field validator?

Question

Is there some way to mock a domain field validator?
Currently, my code in the domain class is looking like this:

isPrimary(validator: { Boolean value, Person obj ->
     .......
}

And I need to mock this function.

I tried to use it like:

Person.metaClass.static.isPrimary.validator = { Boolean value, Person obj ->
     .......
}

And it didn't work, any suggestions how to solve this issue ?

Answer 1

Here is an example:

class Person {
    Boolean isPrimary

    static constraints = {
        isPrimary validator: isPrimaryValidator

        //or this for a fully qualified validator
        //isPrimary validator: Person.isPrimaryValidator
    }

    static isPrimaryValidator = { Boolean value, Person obj ->
        //some validation
    }
}

//in Test
Person.metaClass.'static'.isPrimaryValidator = { Boolean value, Person obj ->
     //Do something else
}