def test_should_create_a_relationsip_from_two_valid_users(self):
command = CreateRelationship(follower_id=bob().ID, followee_id=maria().ID)
relationship_creator = RelationshipCreator(QueryUserByID(InMemoryUsersRepository([bob(), maria()])),
FakeClock(a_perfect_day_and_time()))
new_relationship, events = relationship_creator.execute(command)
assert command.follower_id == new_relationship.follower_id
assert command.followee_id == new_relationship.followee_id
assert len(events) == 1
assert events[0].follower_id == command.follower_id
assert events[0].followee_id == command.followee_id
assert events[0].timestamp == a_perfect_day_and_time()
def test_should_throw_an_exception_on_duplicate_username(self):
command = CreateRelationship(follower_id=UserID(inexistent_user_id()), followee_id=maria().ID)
relationship_creator = RelationshipCreator(QueryUserByID(InMemoryUsersRepository([bob(), maria()])),
FakeClock(a_perfect_day_and_time()))
with self.assertRaises(UnknownUser):
relationship_creator.execute(command)
def test_should_login_a_user(self):
try:
command = LoginUser(username=UserName('Maria'),
password=Password('a_password'))
user_login_by_username_and_password = UserLoginByUserNameAndPassword(
QueryUserByUserName(InMemoryUsersRepository([maria()])),
FakeClock(a_perfect_day_and_time()))
entity, events = user_login_by_username_and_password.execute(
command)
assert entity is None
assert len(events) == 1
assert events[0].username == command.username
assert events[0].timestamp == a_perfect_day_and_time()
except ValueError as err:
self.fail("Unexpected exception raised: %s" % err)
def test_should_throw_an_exception_on_inexistent_user(self):
command = CreatePost(post_id=PostID(),
user_id=UserID('fc673127-c5b9-4128-9015-2bbc31163df1'),
text='',
created_at=a_perfect_day_and_time())
post_creator = PostCreator(QueryUserByID(InMemoryUsersRepository([maria()])))
with self.assertRaises(UnkownUserID):
post_creator.execute(command)
def test_should_raise_an_exception_on_wrong_password(self):
command = LoginUser(username=UserName('Maria'),
password=Password('a_wrong_password'))
user_login_by_username_and_password = UserLoginByUserNameAndPassword(
QueryUserByUserName(InMemoryUsersRepository([maria()])),
FakeClock(a_perfect_day_and_time()))
with self.assertRaises(InvalidCredentials):
user_login_by_username_and_password.execute(command)
def test_should_raise_an_exception_on_unkown_username(self):
command = LoginUser(username=UserName('IDontExist'),
password=Password('a_password'))
user_login_by_username_and_password = UserLoginByUserNameAndPassword(
QueryUserByUserName(InMemoryUsersRepository([maria()])),
FakeClock(a_perfect_day_and_time()))
with self.assertRaises(UnknownUser):
user_login_by_username_and_password.execute(command)
def a_post_by_maria():
return Post(PostID('116c6055-86fe-4335-a332-5a586e995c12'),
maria().ID, 'Hi! this is Maria', a_perfect_day_and_time())
def a_post_by_bob():
return Post(PostID('31b7bf07-06ea-45b9-a8ed-f1f0a8d2040b'),
bob().ID, 'Hi! this is Bob', a_perfect_day_and_time(5))
def test_should_create_a_post(self):
command = CreatePost(post_id=PostID(), user_id=maria().ID, text='', created_at=a_perfect_day_and_time())
post_creator = PostCreator(QueryUserByID(InMemoryUsersRepository([maria()])))
created_post, events = post_creator.execute(command)
assert command.post_id == created_post.post_id
assert command.user_id == created_post.user_id
assert command.text == created_post.text
assert command.created_at == created_post.created_at
assert 1 == len(events)
assert command.post_id == events[0].post_id
assert command.user_id == events[0].user_id
assert command.text == events[0].text
assert command.created_at == events[0].created_at