Grails UnitTest

Hi (it is propably stupid question)

how can acquire Domain class from database in test开发者_如何学Go?

class PollServiceTests extends GrailsUnitTestCase {
    Integer id = 1

    void testSomething() {
       Teacher teacher1 = Teacher.get(id)
       assert teacher1 != null
    }
}

I always get null or

No signature of method: cz.jak.Teacher.get() is applicable for argument types: (java.lang.Integer) values: [1]

thanks a lot Tom

Grails unit tests do not have access to the Grails environment so you have to mock your Domain objects.

void testSomething() {
    mockDomain(Teacher)
    def teacher = new Teacher(...)
    assertNotNull teacher.save(insert:true)
    assertNotNull country.countryId
    def found = Teacher.get(country.countryId)
}

There is an optional second parameter to mockDomain that takes a List. If you pass in a list, then the get, list, save, update, delete methods will work on those objects in the List (if any).

void testSomething() {
    def teachers = []
    for (i in 0..9) {
      teachers.add(new Teacher(name: "teacher${it}"))
    }
    mockDomain Teacher, data

    Teacher t2 = Teacher.get(2)
    assertEquals "teacher2", t2.name
}