Add rescan-tests command for in-process test collection discovery - #110
Add rescan-tests command for in-process test collection discovery#110rquidute wants to merge 5 commits into
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Adds a th-cli rescan-tests command and the corresponding API client method that call the backend's new POST /api/v1/test_collections/rescan endpoint, letting side-loaded custom test scripts be picked up without restarting the backend container. Fixes project-chip/certification-tool#1083
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📝 WalkthroughWalkthroughThe CLI now provides a Sequence Diagram(s)sequenceDiagram
participant CLI
participant rescan_tests
participant SyncApis
participant TestCollectionsAPI
CLI->>rescan_tests: Invoke rescan_tests
rescan_tests->>SyncApis: Create API client
rescan_tests->>TestCollectionsAPI: POST /api/v1/test_collections/rescan
TestCollectionsAPI-->>rescan_tests: Return TestCollections
rescan_tests-->>CLI: Report result or error
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
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Inline comments:
In `@tests/test_rescan_tests.py`:
- Around line 99-104: Update test_rescan_tests_help_message to assert a
substring of the rescan_tests command’s direct help text, such as “Re-run test
collection discovery on the backend,” instead of the short_help text “Rescan
available test collections.”
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📒 Files selected for processing (5)
tests/test_rescan_tests.pyth_cli/api_lib_autogen/api/test_collections_api.pyth_cli/commands/__init__.pyth_cli/commands/rescan_tests.pyth_cli/main.py
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CliRunner.invoke(cmd, ["--help"]) renders the click.command's help= text,
not short_help=. test_rescan_tests_help_message asserted on the
short_help text ('Rescan available test collections'), which never
appears in --help output, so the test failed in CI.
Assert on a substring of the actual help= text instead.
Addresses CodeRabbit review comment / CI failure on #110.
available_tests.py has a dedicated test for the 'server returned None' branch, but rescan_tests.py's equivalent branch was untested, likely tripping the project's --cov-fail-under=85 threshold and contributing to the CI failure alongside the help-text assertion bug fixed previously.
CI actually failed with: AssertionError: assert 'Re-run test collection discovery on the backend' in 'Usage: rescan-tests [OPTIONS]\n\n rescan_tests: Re-run test collection discovery on the\n backend, picking up newly added or edited side-loaded test scripts without\n restarting it\n\n...' Click wraps help= text at a column width that depends on the runner's terminal width, which differs between local runs and CI. The wrap point happened to land between 'the' and 'backend', splitting the substring my assertion checked for across two lines. Collapse whitespace/newlines in the captured output before asserting, so the check is robust to any wrap width.
Reported by user testing the CLI against a real backend:
$ th-cli rescan-tests
Error: Could not rescan test collections: Error handling response: .
Please check if the API server is running and accessible.
Despite the error, a subsequent test run picked up the updated
side-loaded script — the backend had rescanned successfully, but the
CLI gave up first.
Root cause: rescan_test_collections_...() previously used httpx's
default 5s read timeout. Rescanning regenerates the Python test JSON
files via the SDK container, which routinely takes much longer than
5s, so httpx.ReadTimeout fires client-side while the backend keeps
running the rescan to completion in the background. The resulting
ResponseHandlingException stringifies ReadTimeout('') as an empty
string, producing the confusing 'Error handling response: .' message
verbatim (reproduced and confirmed locally).
Fixes it the same way abort_testing.py already works around this for
its own (much faster) operation:
- Extends the client's timeout to 120s (rescanning is far slower than
aborting a test run, since it starts an SDK container).
- Catches ResponseHandlingException and, when the underlying error is
an httpx.TimeoutException, reports success-with-caveat instead of an
error, since the backend keeps processing regardless.
- Non-timeout ResponseHandlingExceptions (e.g. connection refused)
still surface as a real CLIError.
Note: abort_testing.py's existing equivalent branch checks e.source,
which ResponseHandlingException doesn't define (only e.error) — that
looks like a pre-existing bug, not something copied here.
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Found and fixed a real bug while testing this against a live backend: `th-cli rescan-tests` raised ``` ...even though the rescan actually succeeded server-side (a subsequent test run picked up the updated side-loaded script). Root cause: the rescan call used httpx's default 5s read timeout, but rescanning regenerates the Python test JSON files via the SDK container, which routinely takes longer than that. The client times out and raises while the backend keeps running to completion in the background — and `httpx.ReadTimeout('')` stringifies to an empty string, producing that confusing blank-looking error message. Fixed the same way `abort_testing.py` already works around this for its own (much faster) operation: extended timeout (120s) plus graceful handling of the timeout case ("Rescan request sent (backend may still be processing)" instead of an error). Non-timeout failures still surface as real errors. Added test coverage for both the timeout and non-timeout `ResponseHandlingException` paths. |
1 participant
Summary
Implements the CLI side of project-chip/certification-tool#1083 for
Matter v1.7 TE2. Depends on the backend's new
POST /api/v1/test_collections/rescanendpoint:project-chip/certification-tool-backend#357.
Changes
th-cli rescan-tests: new command that calls the backend's rescan endpoint and reports therefreshed test collection count, so side-loaded custom test scripts can be picked up without
restarting the backend container.
th_cli/api_lib_autogen/api/test_collections_api.py: added therescan_test_collections_api_v1_test_collections_rescan_postsync/async client methods(hand-added since regenerating the autogenerated client requires a live backend with the new
endpoint deployed — the shape matches the existing generator output style).
commands/__init__.pyandmain.py.Testing
tests/test_rescan_tests.py, mirroring the existingtest_abort_testing.pypatterns: success, configuration error, API error (busy/409), generic exception, and help text.
black,isort,flake8pass on the changed files.mypywas spot-checked against the newcode (no new findings attributable to it); a full
poetry run mypy th_cli/main.pycould notbe run in the authoring environment due to a local
pyproject.toml/Poetry version mismatchunrelated to this change.
pytestsuite was not run in the authoring environment (no network access to installCLI dependencies); please run the CLI's test suite before merge.
Test Plan
th-cli rescan-testsafter adding a new side-loaded test script; confirm it reportssuccess and the new test case shows up in
th-cli available-tests.th-cli rescan-testswhile a test run is executing; confirm it reports the TestEngine busy error instead of a stack trace.