claude
f925fd9645
Phase 2 sweep — all modules are post-pivot, so the learner directs the AI agent
(Claude Code as the worked example) to do the git/setup work and verifies, instead
of typing commands by hand; no re-teaching basics. Lesson sections are theory with
example output; all execution lives in the labs. De-slopped ("prose" etc. gone
course-wide, em-dash density thinned). /path/to placeholders -> ~/ai-workflow-course.
Every deliberate teaching device verified intact: M10 ai-change.patch trap,
M12 bad-clear-snippet, M13/M27 planted pending_count bug, M15 secret+typosquat+MD5,
M18 BREAK=1, M21 absent-.gitignore, M22 poisoned skill, M24 no-op patch, M25 --simulate.
Labs compile/parse (py/sh/yaml/json); no junk.
Closes #83
Closes #86
Closes #89
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfzV5QvtPDz8LJS3Pu5VLT
77 lines
2.4 KiB
Python
77 lines
2.4 KiB
Python
"""Reference test suite for the Module 13 lab. Peek only after you've tried it yourself.
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Named `reference_test_tasks.py` (not `test_*.py`) on purpose, so `python -m unittest discover`
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does NOT pick it up automatically. To run it, copy it next to your working `tasks.py` (e.g.
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`~/ai-workflow-course/work/tasks-app/`) and run, from that directory:
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python -m unittest reference_test_tasks
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It assumes `tasks.py` is importable, which is why you run it from the tasks-app directory.
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The point of this file is to show the difference between a test that asserts CURRENT BEHAVIOR
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(a tautology that passes against the bug) and a test that encodes INTENT (and fails until the
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bug is fixed).
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"""
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import unittest
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from tasks import TaskList
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class TestTaskBasics(unittest.TestCase):
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def test_add_appends_a_task(self):
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tl = TaskList()
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tl.add("write the tests")
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self.assertEqual(len(tl.tasks), 1)
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self.assertEqual(tl.tasks[0].title, "write the tests")
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self.assertFalse(tl.tasks[0].done)
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def test_complete_marks_done(self):
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tl = TaskList()
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tl.add("a")
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tl.complete(0)
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self.assertTrue(tl.tasks[0].done)
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def test_pending_excludes_completed(self):
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tl = TaskList()
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tl.add("a")
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tl.add("b")
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tl.complete(0)
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self.assertEqual([t.title for t in tl.pending()], ["b"])
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class TestPendingCount(unittest.TestCase):
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def test_count_with_nothing_done_is_a_tautology(self):
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# This passes even with the bug, because when nothing is completed
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# "total" and "pending" are the same number. It proves almost nothing.
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tl = TaskList()
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tl.add("a")
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tl.add("b")
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self.assertEqual(tl.pending_count(), 2)
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def test_count_reflects_intent_after_completing_one(self):
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# This encodes what `count` is FOR: how many tasks are still pending.
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# It FAILS against the planted bug (pending_count returns len(self.tasks)),
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# and passes once pending_count returns len(self.pending()).
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tl = TaskList()
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tl.add("a")
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tl.add("b")
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tl.complete(0)
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self.assertEqual(tl.pending_count(), 1)
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def test_count_of_all_done_is_zero(self):
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tl = TaskList()
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tl.add("a")
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tl.complete(0)
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self.assertEqual(tl.pending_count(), 0)
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# The fix, for reference:
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#
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# def pending_count(self) -> int:
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# return len(self.pending())
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if __name__ == "__main__":
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unittest.main()
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