def test_should_query_all_users(self):
query_all_users = QueryAllUsers(
InMemoryUsersRepository([bob(), maria()]))
all_users = query_all_users.execute()
assert 2 == len(all_users)
assert maria() in all_users
assert bob() in all_users
def test_should_get_a_list_of_posts_by_user_id(self):
query = PostsByUserID(user_id=maria().ID)
posts_by_user_id = QueryPostByUserID(
QueryUserByID(InMemoryUsersRepository([maria()])),
InMemoryPostsRepository([a_post_by_maria()]))
post_list = posts_by_user_id.execute(query)
assert 1 == len(post_list)
assert a_post_by_maria() in post_list
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
def test_should_save_a_user_and_recover_by_user_id(self, user_repository: UsersRepository):
a_user = maria()
user_repository.save(a_user)
user_from_repo = user_repository.by_id(a_user.ID)
assert a_user == user_from_repo
def test_should_throw_an_exception_if_user_does_not_exist(self):
query = PostsByUserID(user_id=inexistent_user_id())
posts_by_user_id = QueryPostByUserID(
QueryUserByID(InMemoryUsersRepository([maria()])),
InMemoryPostsRepository([a_post_by_maria()]))
with self.assertRaises(UnknownUser):
posts_by_user_id.execute(query)
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 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_if_user_does_not_exist(self):
query = WallByUserID(user_id=inexistent_user_id())
posts_by_user_id = QueryWallByUserID(
QueryUserByID(InMemoryUsersRepository([maria()])),
InMemoryPostsRepository(
[a_post_by_maria(),
a_post_by_bob(),
another_post_by_maria()]),
QueryRelationshipsByFollowerID(
InMemoryRelationshipRepository([bob_follows_maria()])))
with self.assertRaises(UnknownUser):
posts_by_user_id.execute(query)
def test_should_get_a_list_of_posts_by_user_id(self):
query = WallByUserID(user_id=bob().ID)
posts_by_user_id = QueryWallByUserID(
QueryUserByID(InMemoryUsersRepository([maria(), bob()])),
InMemoryPostsRepository(
[a_post_by_maria(),
a_post_by_bob(),
another_post_by_maria()]),
QueryRelationshipsByFollowerID(
InMemoryRelationshipRepository([bob_follows_maria()])))
post_list = posts_by_user_id.execute(query)
assert 3 == len(post_list)
assert a_post_by_maria() in post_list
assert a_post_by_bob() in post_list
assert another_post_by_maria() in post_list
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 a_post_by_maria():
return Post(PostID('116c6055-86fe-4335-a332-5a586e995c12'),
maria().ID, 'Hi! this is Maria', a_perfect_day_and_time())
def another_post_by_maria():
return Post(PostID('966ff2dd-e839-44c0-adc9-cfc771e3cf13'),
maria().ID, 'I\'ve invented something!',
a_perfect_day_and_time_ten_minutes_after())
def test_should_throw_an_exception_on_duplicate_username(self):
user_registrator = UserRegistrator(QueryUserByUserName(InMemoryUsersRepository([maria()])))
with self.assertRaises(DuplicatedUserName):
user_registrator.execute(create_maria())
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)
