python
runtime_error
ai_generated
true
AssertionError: Expected 200 but got 404 assert 404 == 200
ID: python/pytest-failed-assertion-with-fixture
80%Fix Rate
85%Confidence
0Evidence
2024-04-10First Seen
Version Compatibility
| Version | Status | Introduced | Deprecated | Notes |
|---|---|---|---|---|
| 3.8 | active | — | — | — |
| 3.9 | active | — | — | — |
| 3.10 | active | — | — | — |
| 3.11 | active | — | — | — |
| 3.12 | active | — | — | — |
Root Cause
A test function using a fixture that sets up an HTTP request expects a 200 status code, but the endpoint returns 404 due to incorrect URL or missing resource.
generic中文
使用 fixture 设置 HTTP 请求的测试函数期望返回 200 状态码,但由于 URL 错误或资源缺失,端点返回了 404。
Workarounds
-
90% success
Update the fixture to use the correct URL: `@pytest.fixture def api_client(): return Client('http://localhost:8000/api/v2')` -
95% success
Verify the endpoint exists by testing manually with curl before running the test suite.
Dead Ends
Common approaches that don't work:
-
90% fail
This masks the actual problem; the test still fails to validate the correct behavior, leading to false positives in other scenarios.
-
50% fail
The issue is not timing-related; the server is running but the endpoint is wrong or missing, so sleeping does not help.