The "no temporary merge files should remain on disk" step in
features/sandbox_merge_strategies.feature:36 scanned global
tempfile.gettempdir() for any ca_merge_* entry and asserted zero. Under
behave-parallel --processes 8 a sibling scenario's in-flight tmpdir in
the same shared /tmp could be observed mid-merge and trip the
assertion, even though GitMergeStrategy.merge cleans up its own tmpdir
in a finally block
(src/cleveragents/infrastructure/sandbox/merge.py:151-155).
Patch tempfile.mkdtemp inside cleveragents.infrastructure.sandbox.merge
for the @when step to track the tmpdirs this scenario's merge actually
creates, then assert those specific paths are gone in the @then step.
Production merge code is unchanged; the contract under test
(cleanup-on-success) is preserved; sibling scenarios sharing /tmp no
longer race the assertion.
ISSUES CLOSED: #7527
HAL9000
a51149a2e1