Issues with writing super simple test in Grails

Question

I have a domain class User:

class User extends AuditableEntity {

    private static final long serialVersionUID = 1

    String username
    String password
    String email
    String googleId
    String linkedinId
    boolean enabled = true
    boolean accountExpired
    boolean accountLocked
    boolean passwordExpired

    Set<Role> getAuthorities() {
        (UserRole.findAllByUser(this) as List<UserRole>)*.role as Set<Role>
    }

    static constraints = {
        password nullable: true, blank: true, password: true
        username nullable: false, blank: false, unique: true
        email nullable: false, blank: false, unique: true
        googleId nullable: true, blank: true, unique: true
        linkedinId nullable: true, blank: true, unique: true
    }

    static mapping = {
        password column: '`password`'
        googleId column: 'google_id'
        linkedinId column: 'linkedin_id'
    }

    static namedQueries = {
        notDeleted {
            isNull 'deletedAt'
        }
    }
}

Where AuditableEntity has only nullable fields.

I also have a simple service class UserService:

@Transactional
class UserService {

    @Transactional(readOnly = true)
    User getByGoogleId(String googleId) {
        def user = User.notDeleted.findByGoogleId(googleId)

        user
    }
}

I am trying to write a unit test for the service class while mocking User domain:

class UserServiceSpec extends Specification implements ServiceUnitTest<UserService>, DataTest {

    def setupSpec() {
        mockDomain User
    }

    void "getByGoogleId"() {
        setup:
        new User(
                username: "username",
                googleId: "googleId",
                email: "[email protected]",
                enabled: true,
                accountExpired: false,
                accountLocked: false,
                passwordExpired: false
        ).save(failOnError: true)

        when:
        def user = service.getByGoogleId("googleId")

        then:
        User.count() == 1
        user.username == "username"
    }
}

This test fails as it is not creating the user object for some reason. User.count() is 0. It is not validation problem, as there are no domain validation errors (they were before).

What am I doing wrong?

Answer 1

Try adding a flush when creating your domain:

...
new User(
    username: "username",
    googleId: "googleId",
    email: "[email protected]",
    enabled: true,
    accountExpired: false,
    accountLocked: false,
    passwordExpired: false
    ).save(failOnError: true, flush: true)
...

I mimicked your setup and this is all that was required.