def test_it_calculates_copies_from_receive_events():
actions = [
BookAction(BookActionName.RECEIVE, 2, book_id=1),
BookAction(BookActionName.RECEIVE, 3, book_id=1)
]
book = Book(actions, book_id=1)
assert book.copies.to_int() == 5
def test_it_calculates_copies_from_receive_release_and_sell_events():
actions = [
BookAction(BookActionName.RECEIVE, 3, book_id=1),
BookAction(BookActionName.RECEIVE, 6, book_id=1),
BookAction(BookActionName.RELEASE, 2, book_id=1, receiver_id=1),
BookAction(BookActionName.SELL, 3, book_id=1)
]
book = Book(actions, book_id=1)
assert book.copies.to_int() == 4
def test_it_raises_error_if_selled_copies_equals_to_zero():
BookAction.save_in_transaction = lambda self: None
BookAction.delete_in_transaction = lambda self: None
released = BookAction(BookActionName.RELEASE,
5,
book_id=1,
receiver_id=1,
id=2,
inserted_at=datetime.datetime(2021, 1, 2))
actions = [
BookAction(BookActionName.RECEIVE,
10,
book_id=1,
inserted_at=datetime.datetime(2021, 1, 1)), released
]
book = Book(actions, book_id=1)
with pytest.raises(AssertionError):
book.sell_released(Copies(0), release_id=3)
def test_it_raises_error_if_released_id_does_not_exist():
BookAction.save_in_transaction = lambda self: None
BookAction.delete_in_transaction = lambda self: None
released = BookAction(BookActionName.RELEASE,
5,
book_id=1,
receiver_id=1,
id=2,
inserted_at=datetime.datetime(2021, 1, 2))
actions = [
BookAction(BookActionName.RECEIVE,
10,
book_id=1,
inserted_at=datetime.datetime(2021, 1, 1)), released
]
book = Book(actions, book_id=1)
with pytest.raises(ValueError):
book.sell_released(Copies(3), release_id=3)
def test_it_sells_all_released_books():
BookAction.save_in_transaction = lambda self: setattr(self, 'saved', True)
BookAction.delete_in_transaction = (
lambda self: setattr(self, 'deleted', True))
released = BookAction(BookActionName.RELEASE,
5,
book_id=1,
receiver_id=1,
id=2,
inserted_at=datetime.datetime(2021, 1, 2))
actions = [
BookAction(BookActionName.RECEIVE,
10,
book_id=1,
inserted_at=datetime.datetime(2021, 1, 1)), released
]
book = Book(actions, book_id=1)
action = book.sell_released(Copies(5), release_id=2)
assert action.name == BookActionName.SELL
assert action.copies == 5
assert released.deleted
def test_it_apply_events_ordered_by_date_desc():
actions = [
BookAction(BookActionName.RELEASE,
10,
book_id=1,
receiver_id=1,
inserted_at=datetime.datetime(2021, 2, 1)),
BookAction(BookActionName.RECEIVE,
10,
book_id=1,
inserted_at=datetime.datetime(2021, 1, 1)),
BookAction(BookActionName.SELL,
5,
book_id=1,
inserted_at=datetime.datetime(2021, 2, 15)),
BookAction(BookActionName.RECEIVE,
6,
book_id=1,
inserted_at=datetime.datetime(2021, 2, 10)),
]
book = Book(actions, book_id=1)
assert book.copies.to_int() == 1
def test_it_calculates_copies_for_books_ids():
books_ids = [1, 2, 3, 4]
events = [
BookAction(BookActionName.RECEIVE, 5, book_id=1),
BookAction(BookActionName.RECEIVE, 10, book_id=2),
BookAction(BookActionName.RECEIVE, 15, book_id=3),
BookAction(BookActionName.RELEASE, 3, book_id=2, receiver_id=1),
BookAction(BookActionName.RELEASE, 2, book_id=1, receiver_id=1),
BookAction(BookActionName.RECEIVE, 1, book_id=4),
BookAction(BookActionName.SELL, 4, book_id=3),
BookAction(BookActionName.RECEIVE, 3, book_id=1),
]
expected = {
1: 6,
2: 7,
3: 11,
4: 1
}
assert calculate(books_ids, events) == expected
def test_it_creates_receive_action_name_for_catalog():
action = BookAction(BookActionName.RECEIVE, 5, book_id=1)
catalog_action = action.format_for_catalog(None)
assert catalog_action['name'] == 'otrzymano'
def test_it_raises_error_with_sell_action_and_receiver_id():
with pytest.raises(AssertionError):
BookAction(BookActionName.SELL, 5, book_id=1, receiver_id=1)
def test_it_is_created_with_sell_action():
BookAction(BookActionName.SELL, 5, book_id=1)
def test_comment_could_be_none():
assert BookAction(BookActionName.RECEIVE, 1, book_id=1, comment=None)
def test_it_contains_comment():
book_action = BookAction(BookActionName.RECEIVE, 1, book_id=1)
book_action.comment = 'Test comment'
assert book_action.comment == 'Test comment'
def test_it_is_created_with_receive_action():
assert BookAction(BookActionName.RECEIVE, 5, book_id=1)
def test_it_is_created_with_release_action_and_receiver_id():
BookAction(BookActionName.RELEASE, 5, book_id=1, receiver_id=1)
def test_it_creates_release_action_name_for_catalog():
action = BookAction(BookActionName.RELEASE, 5, book_id=1, receiver_id=1)
catalog_action = action.format_for_catalog(lambda id: {'name': 'Anonim'})
assert catalog_action['name'] == 'wydano'
def test_it_creates_sell_action_name_for_catalog():
action = BookAction(BookActionName.SELL, 5, book_id=1)
catalog_action = action.format_for_catalog(lambda id: {'name': 'Anonim'})
assert catalog_action['name'] == 'sprzedano'
def test_it_raises_error_with_release_action_without_receiver_id():
with pytest.raises(AssertionError):
BookAction(BookActionName.RELEASE, 5, book_id=1)
def test_it_creates_empty_string_for_empty_comment():
action = BookAction(BookActionName.RELEASE, 5, book_id=1, receiver_id=1)
catalog_action = action.format_for_catalog(lambda id: {'name': 'Anonim'})
assert catalog_action['comment'] == ''
def test_it_raises_error_with_less_than_zero_copies():
with pytest.raises(AssertionError):
BookAction(BookActionName.RECEIVE, -1, book_id=1)