TestProof report

pipeline #2988315191 · job #17459095513 · commit 8430eff7 · generated 2026-10-26T06:27:35+00:00 · TestProof 0.1.0

Mutation score

50% 4/8 killed

Survived

Inconclusive

Baseline tests

15 passed

Scope

Mode diff against 57c8d573c517d87e38c49d5a4b1ecb5c6212c8e8 · app/orders.py: calculate_discount

Test command: python -m unittest discover -s tests -t .

Mutants

Mutant	Status	Caught by
calculate_discount.comparison_boundary.L21 app/orders.py:21 · comparison_boundary - if total < 0: + if total <= 0: test output · all tests passed against the mutant · 0.729s ............... ---------------------------------------------------------------------- Ran 15 tests in 0.003s OK digest sha256:1bd4dcdaae49b4741f051d2869457f8aeee0f87f12481216508f145c9fe9fa72	SURVIVED	—
calculate_discount.guard_removal.L21 app/orders.py:21 · guard_removal - raise ValueError('total must not be negative') + pass test output · 1 test(s) failed against the mutant · 0.724s .F............. ====================================================================== FAIL: test_negative_total_rejected (tests.test_orders.CalculateDiscountTests.test_negative_total_rejected) ---------------------------------------------------------------------- Traceback (most recent call last): File "/tmp/testproof-mutant-z18z1rj1/src/tests/test_orders.py", line 17, in test_negative_total_rejected with self.assertRaises(ValueError): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError: ValueError not raised ---------------------------------------------------------------------- Ran 15 tests in 0.007s FAILED (failures=1) digest sha256:f348e4295c4fd61ebda309892b5602357a764124601349229547c4bad1a87d37	KILLED	`test_negative_total_rejected`
calculate_discount.constant_perturbation.L21 app/orders.py:21 · constant_perturbation - if total < 0: + if total < 1: test output · all tests passed against the mutant · 0.724s ............... ---------------------------------------------------------------------- Ran 15 tests in 0.004s OK digest sha256:47afe505e581dbb6f3e6ed1575cca4af2a3d1f9284e16f876f101f26935b31c2	SURVIVED	—
calculate_discount.comparison_boundary.L23 app/orders.py:23 · comparison_boundary - if total >= MIN_ORDER_FOR_DISCOUNT and code in VALID_CODES: + if total > MIN_ORDER_FOR_DISCOUNT and code in VALID_CODES: test output · all tests passed against the mutant · 0.723s ............... ---------------------------------------------------------------------- Ran 15 tests in 0.008s OK digest sha256:8f3349bdc073d7c54c2f65ee95716fdcbaa5609801dcc44b369be56ab5ac3b70	SURVIVED	—
calculate_discount.membership_flip.L23 app/orders.py:23 · membership_flip - if total >= MIN_ORDER_FOR_DISCOUNT and code in VALID_CODES: + if total >= MIN_ORDER_FOR_DISCOUNT and code not in VALID_CODES: test output · 2 test(s) failed against the mutant · 0.714s F..F........... ====================================================================== FAIL: test_invalid_code_gets_nothing (tests.test_orders.CalculateDiscountTests.test_invalid_code_gets_nothing) ---------------------------------------------------------------------- Traceback (most recent call last): File "/tmp/testproof-mutant-0pjkyr5i/src/tests/test_orders.py", line 11, in test_invalid_code_gets_nothing self.assertEqual(calculate_discount(150, "BOGUS"), 0.0) AssertionError: 15.0 != 0.0 ====================================================================== FAIL: test_valid_code_on_large_order (tests.test_orders.CalculateDiscountTests.test_valid_code_on_large_order) ---------------------------------------------------------------------- Traceback (most recent call last): File "/tmp/testproof-mutant-0pjkyr5i/src/tests/test_orders.py", line 8, in test_valid_code_on_large_order self.assertEqual(calculate_discount(150, "SAVE10"), 15.0) AssertionError: 0.0 != 15.0 ---------------------------------------------------------------------- Ran 15 tests in 0.008s FAILED (failures=2) digest sha256:f272dd72f0aa2ec444621cbaf8072eff1ab7dd29cc989ffe62e0c26c680b7c41	KILLED	`test_invalid_code_gets_nothing` `test_valid_code_on_large_order`
calculate_discount.boolean_flip.L25 app/orders.py:25 · boolean_flip - if is_member: + if not is_member: test output · 1 test(s) failed against the mutant · 0.723s ...F........... ====================================================================== FAIL: test_valid_code_on_large_order (tests.test_orders.CalculateDiscountTests.test_valid_code_on_large_order) ---------------------------------------------------------------------- Traceback (most recent call last): File "/tmp/testproof-mutant-ktppjizz/src/tests/test_orders.py", line 8, in test_valid_code_on_large_order self.assertEqual(calculate_discount(150, "SAVE10"), 15.0) AssertionError: 22.5 != 15.0 ---------------------------------------------------------------------- Ran 15 tests in 0.004s FAILED (failures=1) digest sha256:c790b400308b5cf81246d023659dbea1ed235b795fca5107c812d43d47267d37	KILLED	`test_valid_code_on_large_order`
calculate_discount.arithmetic_swap.L26 app/orders.py:26 · arithmetic_swap - rate += MEMBER_BONUS_RATE + rate -= MEMBER_BONUS_RATE test output · all tests passed against the mutant · 0.715s ............... ---------------------------------------------------------------------- Ran 15 tests in 0.009s OK digest sha256:99973a9dbf843ad63371b3dbca262d90bd17c356acb281c2aa067e49d27937e8	SURVIVED	—
calculate_discount.arithmetic_swap.L27 app/orders.py:27 · arithmetic_swap - return round(total * rate, 2) + return round(total / rate, 2) test output · 1 test(s) failed against the mutant · 0.721s ...F........... ====================================================================== FAIL: test_valid_code_on_large_order (tests.test_orders.CalculateDiscountTests.test_valid_code_on_large_order) ---------------------------------------------------------------------- Traceback (most recent call last): File "/tmp/testproof-mutant-jg59pwal/src/tests/test_orders.py", line 8, in test_valid_code_on_large_order self.assertEqual(calculate_discount(150, "SAVE10"), 15.0) AssertionError: 1500.0 != 15.0 ---------------------------------------------------------------------- Ran 15 tests in 0.003s FAILED (failures=1) digest sha256:5ba35d6dbedc37bb1404cbcfb78327cff4b2b007b2dabeedc7fc27ab618214ba	KILLED	`test_valid_code_on_large_order`

A mutant is KILLED only when at least one named test failed against it, SURVIVED when the whole suite passed, and INCONCLUSIVE on timeouts or errors with no failing test. Score = killed / (killed + survived); inconclusive mutants are excluded and shown separately. Statuses come from running the real test suite, never from a language model.