test: make default-timeout test deterministic across environments#15
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test: make default-timeout test deterministic across environments#15
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Counting occurrences of "timed out after 100ms" in combined stderr was flaky: Bun sometimes prints the failure message twice per file (once inline, once in the summary block), depending on platform and output mode. Locally the regex matched 2 times; on Linux CI it matched 4. Spawn each fixture file separately and assert exit code and stderr content per file instead. This verifies the essential invariant — each file independently times out at KEST_DEFAULT_TIMEOUT — without depending on output formatting. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
ts/default-timeout.test.tswas flaky on CI. It counted occurrences oftimed out after 100msin the combined stderr of a singlebun test file1 file2run and asserted the count was exactly 2.Expected length: 2 / Received length: 4.exitCode !== 0and stderr containstimed out after 100msper file. This verifies the real invariant — each file independently times out atKEST_DEFAULT_TIMEOUT— without depending on output formatting.Test plan
bun test ts/default-timeout.test.tspasses locallydevbox run -- task cipasses locally🤖 Generated with Claude Code