Testing/CI/tooling consistency (#9,#20,#21,#22,#23,#28) (#59)

Co-authored-by: claude <claude@jpaul.io>
Co-committed-by: claude <claude@jpaul.io>

modules/14-continuous-integration/lab/test_tasks.py

@@ -1,36 +1,41 @@
 """Tests for the tasks-app core logic — the kind of suite Module 13 has you write.
 
 Reproduced here so this module's lab is self-contained: if you already wrote tests in Module 13,
-use those instead. Run locally with `pytest -q` from the project folder. CI runs exactly this.
+use those instead. Standard-library `unittest`, exactly like Module 13 — nothing to install.
+Run locally with `python -m unittest` from the project folder. CI runs exactly this.
 """
 
+import unittest
+
 from tasks import TaskList
 
 
-def test_add_appends_a_task():
-    tl = TaskList()
-    tl.add("write the CI lesson")
-    assert len(tl.tasks) == 1
-    assert tl.tasks[0].title == "write the CI lesson"
-    assert tl.tasks[0].done is False
+class TestTaskList(unittest.TestCase):
+    def test_add_appends_a_task(self):
+        tl = TaskList()
+        tl.add("write the CI lesson")
+        self.assertEqual(len(tl.tasks), 1)
+        self.assertEqual(tl.tasks[0].title, "write the CI lesson")
+        self.assertFalse(tl.tasks[0].done)
+
+    def test_complete_marks_a_task_done(self):
+        tl = TaskList()
+        tl.add("ship it")
+        tl.complete(0)
+        self.assertTrue(tl.tasks[0].done)
+
+    def test_pending_excludes_completed_tasks(self):
+        tl = TaskList()
+        tl.add("a")
+        tl.add("b")
+        tl.complete(0)
+        pending = tl.pending()
+        self.assertEqual(len(pending), 1)
+        self.assertEqual(pending[0].title, "b")
+
+    def test_render_is_friendly_when_empty(self):
+        self.assertEqual(TaskList().render(), "(no tasks yet)")
 
 
-def test_complete_marks_a_task_done():
-    tl = TaskList()
-    tl.add("ship it")
-    tl.complete(0)
-    assert tl.tasks[0].done is True
-
-
-def test_pending_excludes_completed_tasks():
-    tl = TaskList()
-    tl.add("a")
-    tl.add("b")
-    tl.complete(0)
-    pending = tl.pending()
-    assert len(pending) == 1
-    assert pending[0].title == "b"
-
-
-def test_render_is_friendly_when_empty():
-    assert TaskList().render() == "(no tasks yet)"
+if __name__ == "__main__":
+    unittest.main()