Files
quiz/tests/test_pool.py
ameer 19603abc58 fix: hide score on submit + total denominator + projector chart cleanup
Three small UX/fairness tweaks from manual live testing:

1. Post-submit "wait for reveal" screen: show only the response time, no
   score. The +score reveal leaked correctness — any positive number =
   correct, zero = wrong — short-circuiting the "stop and think" beat
   the reveal pause was supposed to enforce. Time stays as the
   engagement signal; score now waits for the instructor reveal.

2. Final-screen "Correct X / Y" denominator is now total_questions
   instead of questions_answered. Missed questions are scored zero, so
   they belong in the denominator visibly. Server adds total_questions
   to the session_ended payload.

3. Projector score-distribution: drop the in-chart count labels (they
   collided with each other and with the median tag at small N), restore
   the previously-computed-but-not-rendered x-axis tick labels at the
   bottom. Stats line at the foot keeps n / mean / max.

Also: short-circuit the per-submit instructor + presence broadcasts
when no instructor / projector is connected (no listener, no DB work).
The 50-student load test was tight on margin against its 2 s
time_limit; with the new presence_message / live_histogram_message DB
queries firing on every submit, the margin disappeared on busy boxes.
Conftest fixture also bumped to 8 s per question for the same reason —
gives breathing room for sequential WS submits in the load test.

71/71 pytest green.
2026-05-04 18:25:44 +08:00

38 lines
1.4 KiB
Python

import pytest
from app.pool import PoolValidationError, get_question, parse_pool_json, public_question_payload, question_time_limit
def test_pool_validation_accepts_well_formed_pool(sample_pool):
pool = parse_pool_json(sample_pool)
assert pool["title"] == "Sample Quiz"
assert pool["score_fn"] == "linear_decay"
assert question_time_limit(pool, 0) == 8
assert get_question(pool, 0)["correct"] == "B"
public = public_question_payload(pool, 0)
assert "correct" not in public
assert public["options"]["A"] == "Alpha"
@pytest.mark.parametrize(
"mutator, message",
[
(lambda p: p.pop("title"), "title"),
(lambda p: p.update({"questions": []}), "at least one"),
(lambda p: p["questions"][0].pop("text"), "text"),
(lambda p: p["questions"][0].update({"options": {"A": "x"}}), "options"),
(lambda p: p["questions"][0].update({"correct": "E"}), "correct"),
(lambda p: p.update({"score_fn": "missing"}), "Unknown"),
(lambda p: p.update({"time_limit_default": 0}), "positive"),
],
)
def test_pool_validation_rejects_invalid_shapes(sample_pool, mutator, message):
mutator(sample_pool)
with pytest.raises(PoolValidationError, match=message):
parse_pool_json(sample_pool)
def test_pool_validation_rejects_invalid_json():
with pytest.raises(PoolValidationError, match="Invalid JSON"):
parse_pool_json("{bad")