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Closes #69. script/test ran `go test` without -count=1, so Go's test cache satisfied the gate without running anything: a repeat `make test` printed all 14 ok lines in 0.42 seconds, every one marked (cached). Those lines count as ok lines, so the evidence signal this repo relies on was forgeable. It sits below the Docker layer cache - CHECK_EPOCH forces `RUN make test` to re-execute, but a GOCACHE baked into an earlier image layer survives into the re-executed step, so the step can run and still do no work. -count=1 is applied unconditionally rather than only in the container, because the pre-commit hook runs the same script and a gate honest only in CI is dishonest where it is leaned on most. It costs about 11 seconds on every repeat run, which is what it costs for a repeat run to mean anything. test-coverage had the same omission and is fixed too; a coverage profile assembled from cached results describes a run that did not happen. Both invocations in script/test now share one run_tests function so the quiet run and the verbose rerun cannot drift apart in flags. make test-integration passed -tags=integration while no file in the repo carries any build tag, so it was an exact duplicate of make test. Removed rather than given a tag scheme: the whole suite is 12s on the host, so gating saves seconds in exchange for a mechanism whose failure mode is "some tests silently stopped running" - a poor trade in a repo that has found several ways for a gate to report an unearned green. -timeout goes 30s to 120s. This DIVERGES from REPO_POLICIES.md:192, which mandates 30s; the divergence is deliberate, recorded in script/test's comment, and proposed upstream as #101. Measured worst case is 10.2s and each fresh measurement has come in above the last, leaving 30s at 2.9x - too thin for a loaded runner. A -timeout is a hang backstop, not a performance budget. Note for the record: cold-cache compilation is NOT charged against -timeout. The flag reaches the test binary as -test.timeout and its clock starts inside testing.M.Run, after compilation. Verified twice independently - a run with an empty GOCACHE spent ~46s compiling and then reported per-package durations within noise of warm. A shell `timeout 30 go test ./...` does include compilation, but that is a different mechanism.
70 lines
3.3 KiB
Bash
Executable File
70 lines
3.3 KiB
Bash
Executable File
#!/bin/sh
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# script/test: run the test suite. Quiet on success; on failure, rerun
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# verbosely for full diagnostic output (the exit 1 ensures the rerun
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# never turns a failure into a pass).
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set -eu
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ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
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# The flags live in one function so the quiet run and the verbose rerun
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# below cannot drift apart. A rerun that used different flags would
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# diagnose a different program than the one that failed.
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#
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# -count=1 is the documented way to bypass Go's test result cache, and
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# it is not optional here. Without it, a package whose inputs are
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# unchanged prints `ok <pkg> (cached)`, and that line is
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# indistinguishable -- to every check this repo performs -- from a
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# package that actually ran. The whole suite reports its full set of
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# `ok` lines in under half a second having executed nothing. That
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# matters beyond the local inner loop: the Dockerfile's `RUN make test`
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# is forced to re-execute by CHECK_EPOCH, but a GOCACHE baked into an
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# earlier image layer survives into the re-executed step, so the step
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# can re-run and still do no work. It is applied unconditionally rather
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# than only in the containerised path because the pre-commit hook runs
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# this same script; a gate that is honest only in CI is dishonest
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# exactly where people lean on it most.
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#
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# -timeout is a hang backstop, not a performance budget: its job is to
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# turn a deadlocked test into a stack dump instead of a wedged CI job,
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# so it wants to sit far above the slowest legitimate runtime, not just
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# above it. It is per test binary and covers test execution only -- the
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# clock starts inside testing.M.Run, after compilation and linking, so
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# build time is not charged against it. (Measured: a containerised run
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# with an empty GOCACHE reports per-package durations within noise of a
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# warm host run. A shell `timeout 30 go test ./...` would include
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# compilation, but that is a different mechanism from this flag.)
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#
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# The 120s value DELIBERATELY DIVERGES from REPO_POLICIES.md:192, which
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# mandates "Add a 30-second timeout", and from that file's canonical Go
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# recipe at :212-214, which uses -timeout 30s. REPO_POLICIES.md is
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# org-canonical and cannot be amended from this repo, so the divergence
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# is recorded here instead, and issue #101 proposes amending the policy
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# text upstream. Do not revert this to 30s without reading #101 first.
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#
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# Why it diverges: the slowest packages are internal/database and
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# internal/vaultik, observed under -race at about 6.4s warm, 8.1s in a
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# cold containerised run on a contended host, and 10.2s in an
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# independent cold run on this same host. The worst case is not tightly
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# characterised -- each fresh measurement has come in above the last --
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# which is itself an argument for generous headroom. Against the 10.2s
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# observation, 30s is only 2.9x: not a safety margin but a flake
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# waiting for a slow day, whose failure mode is a timeout that looks
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# like a real defect. 120s leaves about 12x while still bounding a hung
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# package -- including the verbose rerun below -- to a few minutes. The
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# cost of that choice, also recorded on #101: because of the rerun, a
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# hung package pays the timeout twice.
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run_tests() {
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go test -race -timeout 120s -count=1 "$@" ./...
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}
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main() {
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cd "$ROOT"
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run_tests || {
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echo "--- Rerunning with -v for details ---"
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run_tests -v
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exit 1
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}
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}
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main "$@"
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