Since the specification doesn't contain unit tests, there's still a need for unit tests before the coding of the module can begin. The
planner.data classes are the first target for implementation, so they're the first ones to get tests.
Activities and statuses are defined to be very similar, so their test modules are also similar. They're not identical though, and they're not required to have any particular inheritance relationship, so the tests remain distinct.
The following tests are in
from unittest import TestCase from mocker import MockerTestCase from planner.data import activities, task_error from datetime import datetime class constructor_tests(TestCase): def test_valid(self): activity ...