test(install): compare stderr exactly and check every package.json and bun.lock row in bun-add-filter.test.ts - #39746
test(install): compare stderr exactly and check every package.json and bun.lock row in bun-add-filter.test.ts#39746robobun wants to merge 5 commits into
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…he and pin its stderr, package.json and bun.lock Every case had its own empty install cache, so each of the roughly 200 registry-touching bun processes fetched the same manifests and tarballs again from the verdaccio child. Under ASAN that child is a build of the same binary and serves one request at a time, so the five concurrent cases queued up behind it. One install in beforeAll now fills a cache with the packages the cases use, and every test dir starts from a copy of its files, so the cases still share nothing. run() strips the two progress lines from stderr and the cases compare the rest exactly. expectWorkspaces and expectAddedOnlyTo also check that the bun.lock workspaces entries mirror every package.json. The outdated tables, the dry-run listings and two install summaries are pinned line by line.
…ink-only index dirs
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Included review availability: Your plan provides up to 5 included reviews per hour; 1 remains after this review. WalkthroughChangesThe PR expands filtered install CLI tests with exact output checks, workspace and lockfile validation, selector coverage, dependency operation tests, linker and dry-run coverage, catalog checks, and rollback assertions. Filtered install behavior
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Updated 1:56 PM PT - Aug 20th, 2026
✅ @robobun, your commit 837a8248907e6714bb35aa02d2e39971a55e9ead passed in 🧪 To try this PR locally: bunx bun-pr 39746That installs a local version of the PR into your bun-39746 --bun |
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Status: ready for review. The PR is now the assertion change only (head 837a824). The cache seeding from the first revision is removed. Build 101612 ran that revision green on every lane, and its logs show the cases of this file taking 6.5s on x64-asan against 6.7s and 7.1s in builds 101586 and 101560 without it, so it bought nothing measurable there. The 14s in front of the cases in all three builds is the first verdaccio start of the shard, which this file only happens to be charged for (the next verdaccio file in the shard runs 7 cases in 3.3s, and this file takes 1.3s to 1.7s on darwin, where it runs 16th). The harness side of that is #36352, #38891 and #33115. Details and the list of assertion changes are in the PR body. Locally: |
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LGTM — test-only change that warms a per-test install cache and tightens assertions from not.toContain("error:") to exact toBe(...).
What was reviewed:
- Warm-cache copy in
createDir:listFilesskips symlinks (index links), each case still gets its own.bun-cacheunderBUN_INSTALL_CACHE_DIR, so no shared state between concurrent cases. lockEntryOfcorrectly stripsworkspaces/catalog/scriptsso root/CATALOG_ROOT compare against bun.lock's{ name: "root" }entry; the!packages/webcase correctly avoidsexpectWorkspacesand checks lock keys directly.installOktightening totoBe("Saved lockfile\n")— checked that every remaining call site is a first install (writes a lockfile); no-write sites moved toinstallUnchangedor inlinetoBe("").PROGRESS_LINESregex is anchored per-line and only strips the two known progress lines, so unexpected stderr still fails the exact match.
Extended reasoning...
Overview
This PR touches a single file, test/cli/install/bun-add-filter.test.ts (~600 line diff across 124 test cases). It makes two independent changes: (1) a beforeAll install populates a warm cache that createDir copies into each test dir, so concurrent cases stop queuing on the ASAN verdaccio child for the same manifests; (2) roughly 120 assertion sites move from not.toContain("error:") and partial pkg(dir, ...) checks to exact toBe(...) on stderr, full expectWorkspaces over all five package.json files plus their bun.lock workspaces mirror, and line-by-line stdout pins for the outdated tables, dry-run listings, and install summaries. New helpers are createDir, listFiles, plus, lockEntryOf, expectWorkspaces, installUnchanged, expectFollowersCatalog, and the PROGRESS_LINES stripper in run.
Security risks
None. Test-only, no production code. The file already spawns bunExe() against a local verdaccio; nothing new reaches the network. The added copyFile/mkdir calls write only under the per-test temp dir returned by registry.createTestDir.
Level of scrutiny
Medium-low. The diff is large in line count but mechanical: the same two transformations (not.toContain → toBe, partial pkg checks → expectWorkspaces([...])) applied uniformly. It strictly tightens assertions, which is what the review guidelines ask for ("assert the strongest invariant", "toBe over toContain"). The one behavioral addition — the warm-cache copy — is isolated in createDir, keeps per-case cache isolation (no shared writer), and the PR description explains why cpSync and links were rejected.
I checked the corner cases: lockEntryOf filters to name/version/dep-groups only, so ROOT (with workspaces), CATALOG_ROOT (with catalog), and the postinstall root (with scripts) all reduce to what bun.lock actually stores; the one case where a workspace is excluded from bun.lock (!packages/web) correctly stays on allPackageJsons + an explicit key-set check instead of expectWorkspaces. installOk's tightening to "Saved lockfile\n" is safe because every remaining call is a first install; the six post-check sites where the lockfile is already current moved to installUnchanged. listFiles uses entry.isFile() so symlinked index entries are skipped, matching the PR description and avoiding the Windows ERR_FS_CP_EINVAL the author hit with cpSync.
Other factors
The PR description documents 5 debug-ASAN, 8 release-Linux, and 12 release-Windows passing runs of the final version, plus interleaved before/after timings showing the ASAN-lane case-duration sum dropping from ~106s to ~43s with no regression on the release lanes. No existing test is weakened or deleted; the handful of intentionally-untouched cases (the -F -d -E case, link:, the root-skipped unwritable case) are called out with linked PR numbers. The bug hunting system found nothing. Given it's test-only, strengthens coverage, and is thoroughly verified, I'm comfortable approving without a human pass.
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…rtion changes In CI the cases of this file take 6.5s to 7s on the asan lane with or without the warm cache (builds 101560, 101586, 101612). The 14s in front of them is the first verdaccio start of the shard, which lives in the harness. So the file keeps only the assertion changes: stderr is compared exactly, every package.json and its bun.lock row is checked, and the outdated, dry-run and install summaries are pinned.
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Inline comments:
In `@test/cli/install/bun-add-filter.test.ts`:
- Around line 141-145: Update expectWorkspaces to also compare the complete set
of keys in lockfileJson(dir).workspaces against the expected workspace keys,
ensuring extra or stale bun.lock workspaces entries cause the assertion to fail
while preserving the existing package and entry-value checks.
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test/cli/install/bun-add-filter.test.ts
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LGTM — test-only change that tightens assertions in the direction REVIEW.md mandates (exact stderr over not.toContain("error:"), every package.json + its bun.lock row, exact stdout tables).
What was reviewed:
PROGRESS_LINESstrip + ~100 sites moved totoBe("Saved lockfile\n")/toBe("")— checked the regex is anchored per-line and the author verified on Windows, so no CRLF issue.- New
expectWorkspaces/lockEntryOf/plushelpers —lockEntryOffilters to the six keys bun.lock actually stores, so roots withworkspaces/scripts/catalogcompare correctly. installUnchangedreplacing post-checkinstallOk, and the added bun.lock absence/byte-identical checks on error paths — all strictly tighter than before.- The warm-cache copy was dropped in the final commit, so no shared-state or copy-semantics concerns remain.
Extended reasoning...
Overview
This PR touches exactly one file, test/cli/install/bun-add-filter.test.ts, and no production code. The net diff (after the final commit dropped the warm-cache copy) is: a PROGRESS_LINES regex that strips the two download-progress lines from stderr so callers can compare the remainder exactly; new helpers installUnchanged, lockEntryOf, lockKey, plus, expectWorkspaces, expectFollowersCatalog; expectAddedOnlyTo extended to also assert the bun.lock workspaces rows; and ~120 call sites converted from partial checks (not.toContain("error:"), one or two pkg() reads) to exact ones (toBe("Saved lockfile\n") or the full error text, all five package.jsons plus their lockfile rows, pinned stdout for outdated, --dry-run and install summaries). Assertion count goes from 1004 to 1046 across the same 216 subprocesses.
Security risks
None. This is test-only code running against a local Verdaccio registry with fixture packages. No auth, crypto, network egress, or file permissions are touched. The change cannot affect the shipped binary.
Level of scrutiny
Moderate diff size (~500 lines) but low risk: every change is a strictly tighter assertion or a helper that composes existing reads. A tighter assertion can only make a test fail more, never pass when it should not, so the failure mode is CI red — which the author already ruled out with build 101612 green on every lane plus 5 debug / 8 release Linux and 12 release Windows runs. The pattern is mechanical and matches exactly what the repo's REVIEW.md asks for ("assert exact values on normalized output", "toBe over toContain", "never bare toThrow()").
Other factors
I checked the helper semantics against the fixtures: lockEntryOf keeps only name/version/the four dependency groups, which is what bun.lock's workspaces entries contain — so roots that carry workspaces, scripts, or catalog config compare correctly (the extra keys are filtered before comparison). The plus() type was fixed in 272c731 so plus(ROOT) type-checks. The PROGRESS_LINES regex is ^-anchored with /gm and matches only the two literal progress prefixes, so it cannot swallow an unrelated line. The warm-cache mechanism described in the PR body was reverted in the final commit (0ad0c30), removing the only piece that would have warranted closer inspection (concurrent cache copies). No prior human review comments to address; CodeRabbit skipped the file. The bug hunting system found nothing.
…pectWorkspaces A stale or extra row under workspaces was invisible when only the five known keys were read back.
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LGTM — test-only assertion strengthening that follows the repo's "assert exact values" guidance.
What was reviewed:
- New helpers (
expectWorkspaces,installUnchanged,plus,lockEntryOf,PROGRESS_LINES) — checked thatlockEntryOfprojects only the keys bun.lock actually stores and thatexpectWorkspacesnow compares the wholeworkspacesobject (CodeRabbit's key-set concern is addressed). - The ~100
not.toContain("error:")→toBe("Saved lockfile\n")conversions and the exact-stderr pins for warn/note/error paths — spot-checked that no assertion was silently weakened. - Pinned stdout for outdated tables, dry-run listings and install summaries — output is normalized via
stdoutLines/normalizeBunSnapshot, and the PR body explains what each line proves.
Extended reasoning...
Overview
Single-file test-only change to test/cli/install/bun-add-filter.test.ts. Adds five small helpers and rewrites ~124 existing test cases to (a) strip the two variable download-progress lines from stderr and compare the rest with toBe(...) instead of not.toContain("error:"), (b) assert every workspace's package.json and its mirrored bun.lock workspaces row via expectWorkspaces/expectAddedOnlyTo, and (c) pin stdout line-by-line for outdated tables, dry-run listings, and a few install/remove summaries. No production code is touched.
Security risks
None. Test-only; no auth, crypto, permissions, or untrusted-input handling changed.
Level of scrutiny
Low-to-medium. The change is large in line count but mechanically uniform — it applies the repo's own test guidance ("assert exact values on normalized output", "toBe over toContain") across an existing suite. If any pinned string were wrong the file would fail in CI, and build 101612 ran it green on every lane per the PR body. The one review suggestion (assert the full bun.lock workspaces key set) was addressed in 837a824 by switching expectWorkspaces to toStrictEqual on the whole section.
Other factors
- The PR description is unusually thorough: it enumerates which sites pin
Saved lockfile, which pin"", which keeptoStartWith/toContainbecause of code frames, and why the four sites touched by open PRs #36284/#35461/#39232 were left byte-identical. PROGRESS_LINESis the same normalization constant #39646 introduces elsewhere; the follow-up to hoist it into harness.ts is noted.- No existing assertions were deleted without a strictly-stronger replacement; several "writes nothing" cases now also assert bun.lock is absent or byte-identical.
- No prior claude[bot] review on this PR.
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Problem
test/cli/install/bun-add-filter.test.tscheck stderr withnot.toContain("error:")and read 1 to 3 of the 5 package.json files. A stray warning, an unwritten lockfile, an edit to an unselected workspace or a bun.lock that does not match the files all pass.Fix
runstrips the two progress lines from stderr. The cases compare the rest exactly:Saved lockfile, nothing, or the exact warn, note or error text.expectWorkspaceschecks all 5 package.json files and the rows bun.lock keeps for them.expectAddedOnlyTo, used by the relation and selector cases, checks the same rows.installUnchangedpins that a plain install afterwards has nothing to save.bun bd test test/cli/install/bun-add-filter.test.ts, 123 pass, 1039 assertions against 997 before, in the same 216 processes. The previous revision passed every lane of build 101612 and 12 release runs on Windows x64. This one only removes setup.Background
workspaces, keyed by path.""is the root. A filtered add or remove has to keep those rows in step with the files it edits.bun installprintsResolving dependenciesandResolved, downloaded and extracted [N]to stderr when it downloads something, andSaved lockfilewhen it writes bun.lock. OnlyNvaries between runs.bun addis given an explicit group flag #36284, install: support path-form link: dependencies #35461, test: add a harness isRoot and skip the chmod-based ls and Bun.file cases as root #39232). The four places they rewrite are left byte-identical.Notes
Where the 22s goes. The dots reporter flushes about once a second with a timestamp. On x64-asan the file prints its header at +0.1s, its first dots at +15.1s and its summary at +22.2s (build 101560, position 4 of 289 in its shard), or +13.9s and +20.6s (build 101586). With the cache seeding of the previous revision: +15.6s and +22.1s (build 101612). So the 124 cases take 6.5s to 7.1s, and the 14s in front of them is the first verdaccio start of the shard, under the ASAN build, while the job is still starting its containers (the
coordinator: ... readylines land in the middle of this file in all three builds). The next verdaccio file in the same shard,isolated-relink.test.ts, starts its registry and runs 7 cases in 3.3s. On darwin, where the file runs 16th, it takes 1.3s to 1.7s in total; at position 3 (build 101612, a PR build puts the touched file first) it takes 6.9s. The expected duration of this file is mostly the cost of being the first registry user in its shard. The levers for that are in test/harness.ts: the verdaccio child runs underbunExe()in CI (harness.ts:1905),stop()does not stop it (#36352),start()(#38891), or no verdaccio at all (#33115). The 6.5s to 7s that is this file's own is 216 ASAN process starts 5 at a time (src/options_types/context.rs:506).The cache seeding that was removed. One install in
beforeAll, its manifests and package directories copied into every test dir. With verdaccio under the debug ASAN build locally it looked large (the file went from 55s to 45s), but that registry is far slower than the release ASAN one CI runs: in CI the cases went from 6.7s and 7.1s to 6.5s, within the flush granularity, and with the registry under a release bun the debug build measured 12.3s to 12.7s before and after. Release runs measured 1.2s against 1.0s to 1.1s on Linux and 1.78s against 1.79s to 1.89s on Windows. The self-review also pointed out that #39741 is solving the same question differently for another file, so if seeding is wanted it belongs inVerdaccioRegistry, not in one file. Sharing one pre-installed tree for the 17 setup installs ofGRAPHandROOT_GRAPHwould save about 0.5s of the 7s and is not done either.Assertion changes.
not.toContain("error:")totoBe("Saved lockfile\n"). The sites where nothing may be written pin"": both--dry-runcases, the two--only-missingruns that find everything present, the two removes of an undeclared name, the second filtered install,--frozen-lockfile, and the fouroutdatedruns. The sites with a warning or note pin the whole text and its order, including the postinstall case (Saved lockfile, then$ exit 1, then the error), which shows the files are written before the script runs.note:line outside a project, the 404 line, the catalog refusals and the spelled-differently error. Errors with a code frame pin their own line instead oferror:: unparsable root (failed to parse package.json ... ParserError), missing workspace dir, unsatisfiedworkspace:range with itsVersion:suffix, missing local path with the re-spelled name.expectWorkspacesreplaces partial checks at about 45 sites. It compares the wholeworkspacessection of bun.lock, so an extra or stale row fails too (a review comment asked for the key set).expectAddedOnlyTocovers the roughly 30 relation and selector cases; it compares the five known rows, because one of those cases adds a sixth workspace. The remove,--lockfile-only, catalog and--trustcases also check thepackages,catalogandtrustedDependenciessections of bun.lock. The!packages/webcase checks the key set by hand instead, because web has no row there.outdatedcases, both--dry-runcases (the listing shows the whole monorepo is resolved, not just the target),links only the selected workspace(2 packages installed),re-links only the selected workspace(1 package installed, which is also what an unfiltered remove prints when it has to link something), the--only-missingsummary (4 packages installed), and the no-match remove banner.installUnchangedreplacesinstallOkandnot.toContain("Saved lockfile")at 6 post-check sites. Six "writes nothing" cases also check that bun.lock is absent or byte-identical. In the pnpm#5601 case the second pattern is pinned as a no-op (""), which is what shows it selected the same workspace as the first one.-F ... -d -Ecase and the two-groups--peercase (install: move existing dependency whenbun addis given an explicit group flag #36284 rewrites both), thelink:case (install: support path-form link: dependencies #35461), theskipIfline of the unwritable case (test: add a harness isRoot and skip the chmod-based ls and Bun.file cases as root #39232), and the body of that case, which is skipped as root here. The imports,beforeAll,makeMonorepoandenvForare unchanged too. A new case only needsexpect(stderr).toBe("Saved lockfile\n")and, where it applies,expectWorkspaces.PROGRESS_LINESis the same constant test(install): run the dummy-registry half of bun-update.test.ts concurrently and tighten its assertions #39646 adds to bun-update.test.ts. Moving it into harness.ts is a follow-up once both are in.no test proof · iteration 0 · Platform-specific test-only change; deferring to CI.