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Sarj Standards

Python · testing

zero-assertion-test

python:zero-assertion-test

Test contains no assertion of any kind — it passes as long as nothing raises.

Code
SARJ043
Default
error
Fix
none
Languages
python

Why

Calling production code without verifying an outcome gives the test no observable behavioral contract.

Fix

Assert the result or use an explicit pytest expectation such as `pytest.raises` or `pytest.warns`.

Before / after

Executed by this rule’s unit tests.

Before

Test verifies no outcome

tests/test_conditions.py · focus
def test_conditions():
    evaluate_conditions(record, conditions)

After

Test verifies the result

tests/test_conditions.py · focus
def test_conditions():
    assert evaluate_conditions(record, conditions)

Limits

  • Only pytest-collected test functions in test paths are analyzed.
  • Skipped, xfailed, benchmark, placeholder, helper-delegating, and explicit expectation tests are excluded.