'bug 753563: Support username changes'

def test_username(self):

    test_user = user(save=True)
    data = {'username': test_user.username}
    form = UserEditForm(data, instance=test_user)
    eq_(True, form.is_valid())
    test_user2 = user(save=True)
    form = UserEditForm(data, instance=test_user2)
    eq_(False, form.is_valid())
