v14 3.4.2 add posts after save does not break the test

[stefanlack]

In Listing "3.12 Accessing a User’s posts by walking the object graph" there is a bug in your integration test. When "User.get(user.id)" is called, the user is not read from the database but from the hibernate session instead.

given: user.save(...) user.addToPosts(...) // save is not called here.

when: // the posts are not inserted into the database right now. Add user.discard() // before User.get(user.id), and the test fails.

[stefanlack]

Fixed Test:

def "Ensure posts linked to a user can be retrieved"() {
    given: "A user with several posts"
    User user = new User(loginId: 'joe', password: 'secret')

    user.addToPosts(new Post(content: "Second"))
    user.addToPosts(new Post(content: "First"))
    user.addToPosts(new Post(content: "Third"))

    user.save(failOnError: true)

    when: "The user is retrieved by their id"
    user.discard()
    def foundUser = User.get(user.id)
    List<String> sortedPostContent = foundUser.posts.collect { it.content
    }.sort()

    then: "The posts appear on the retrieved user"
    sortedPostContent == ['First', 'Second', 'Third']
}