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…e and registry requests Every spawned case gets its own temp dir, install cache and user config dir, so the cases no longer share verdaccio's htpasswd resets or a warm cache, and run under describe.concurrent. The one verdaccio user is created in beforeAll. The loadNpmrc option matrix is a test.each and no longer creates directories it never used. Installs now assert the exact stdout and stderr, the tarball urls in bun.lock (which registry served each package), and the mock registries compare the full request list including the authorization header.
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Status: ready for review. CI is green (Buildkite #113558). Measured with Reviewed: this PR should stay open. The one open item is ordering against #40423, which rewrites the same file and rewords two diagnostics pinned here. I left a note there and will rebase whichever way is needed. |
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Included review availability: Your plan provides up to 10 included reviews per hour; 7 remain after this review. WalkthroughChangesThe npmrc test suite now runs in isolated temporary environments with shared recording registries. It validates configuration lookup, authentication formats, registry precedence, scoped routing, credential handling, IPv6 URLs, request details, diagnostics, output, and exit codes. npmrc Test Coverage
Priority: ⬇️ Low Merge Risk: ⚪ Minimal · up to This updates npmrc install test isolation and assertions without changing product behavior. No merge-blocking risk is identified. 🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
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In `@test/cli/install/npmrc.test.ts`:
- Line 472: Replace the " ".repeat expression used to build the caret
indentation in the affected test with Buffer.alloc(count, fill).toString(),
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LGTM — test-only refactor to the documented harness conventions, with every assertion tightened and none weakened.
What was reviewed:
- Concurrency safety: single
generateUserinbeforeAll+ per-caseBUN_INSTALL_CACHE_DIR/HOME/XDG_CONFIG_HOMEunder the tempDir removes the shared htpasswd/cache races that would otherwise breakdescribe.concurrent. - Assertion strength: exit-code-only
Bun.$ .throws(true)cases now pin exact stdout/stderr snapshots, lockfile tarball URLs, and recorded request/authorization pairs; the_authempty-value case now asserts the 401 + exit 1 it was previously masking via a warm cache. - Hermeticity: the home-config override case's
registry.npmjs.orgreference is replaced with a localrecordingRegistrythat must see zero requests;port: 0everywhere; no timing waits; the one order-dependent output (two concurrent 404s) is compared sorted. - Conventions:
tempDir/bunEnv/normalizeBunSnapshot/await usingused throughout, dynamicrequirereplaced with a static import,Buffer.allocfor the caret indent (second commit).
Extended reasoning...
Overview
This PR rewrites test/cli/install/npmrc.test.ts (514 insertions, 566 deletions, net -52) from ad-hoc Bun.$/registry.createTestDir()/console.log style to the harness conventions in CLAUDE.md and test/CLAUDE.md: tempDir + Bun.spawn with await using, normalizeBunSnapshot + inline snapshots, describe.concurrent, it.each tables, and shared helpers (envFor, bun, install, lockfileTarballs, recordingRegistry, npmrcDefaults). It creates one Verdaccio user in beforeAll (per-test generateUser/createTestDir rewrite htpasswd and would race under concurrency), gives each spawned install its own cache and home dir, replaces a registry.npmjs.org reference with a local recording server, adds one negative control to the XDG lookup group, and folds three duplicated Bun.serve request-recording stubs into recordingRegistry. No production code is touched.
Security risks
None. This is a test-only change. It actually removes the one line that could contact the public internet (the home-config .npmrc pointing at https://registry.npmjs.org/) in favor of a local port: 0 server. No credentials, no auth paths, no changes to what ships.
Level of scrutiny
Low-to-moderate. The line count is large but the change is mechanical: it converts shell-based fixture setup to the exact patterns the repo's CLAUDE.md prescribes, and every previous assertion is either preserved or made strictly stronger (exit-code-only → full snapshot + lockfile + request list). REVIEW.md's "never silently weaken an existing test" rule is satisfied — I checked each converted case and the only behavioral difference is that the _auth from .env variable with no value case now asserts the 401 and exit 1 it was previously hiding behind a shared warm cache, which is a tightening. The one order-sensitive assertion (two concurrent 404 lines in the IPv6 case) is sorted before comparison, and the port-width-dependent caret column is computed rather than snapshotted, both explicitly to avoid flakes.
Other factors
The bug hunt ran to dry_streak with zero findings and zero ruled-out candidates. No CODEOWNERS entry covers this path. The one third-party inline comment (coderabbitai at line 472) was resolved by a non-author and followed by commit 2ece7b0 ("build the caret indent with Buffer.alloc"), which matches the Buffer.alloc(...).toString() convention in test/CLAUDE.md. There are no outstanding CHANGES_REQUESTED reviews. The PR description claims verification on both bun bd test (8 runs, 0 failures, ~4.3-4.6s vs ~7.1-7.3s before) and Windows x64 canary; while I can't independently verify the run, the code matches the described behavior and the Windows-relevant USERPROFILE/realpathSync handling is present.
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Problem
test/cli/install/npmrc.test.tsran its ~25bun install/bun pm/bun publishspawns one after another. Each case calledregistry.createTestDir(), which deletes verdaccio's htpasswd file, so the cases could not run concurrently.@needs-authinstalls were cache hits: the "_authwith no value" case passed with exit 0 although the registry refuses that request.Fix
tempDir, its ownBUN_INSTALL_CACHE_DIRand its own$HOME/$XDG_CONFIG_HOME, and runs underdescribe.concurrent. One verdaccio user is created inbeforeAll. TheloadNpmrcoption matrix is atest.each.bun.lock(which registry served each package), then the exit code. The mock registries compare the full request list with the authorization header. One negative control added (41 tests, was 40), none removed or skipped.bun bd test test/cli/install/npmrc.test.ts, 7.11 to 7.31 s before, 4.32 to 4.63 s after, 8 runs, 0 failures. Passes on Windows x64 with a canary build.Background
VerdaccioRegistry(test/harness.ts) forks one verdaccio per file. It serves@needs-auth/*to authenticated users only and checks its htpasswd file on every request.createTestDir()deletes that file (test: keep verdaccio users alive across createTestDir() calls #40219).BUN_INSTALL_CACHE_DIR. It wins overbunfig.tomland.npmrc, so a per-case cache has to go through the environment.Resolved, downloaded and extracted [N]counts 4 tasks per package on a cold cache: manifest download, manifest parse, tarball download, extract.Notes
Self-review survivors:
_authwarning (received an empty stringbecomessupplies no credentials) and the undecodable_passwordwarning. Whichever PR lands second needs a rebase of this file. I left a note on install: .npmrc credentials the npm way — verbatim _auth, no URL-embedded credential in the request path, key-walk lookup for registries and tarballs #40423 and will rebase this one if it lands second.envFor()is one more per-file copy of "own cache dir plus own home dir" (bun-add-catalog, bun-audit, bun-dedupe and others carry the same helper). A sharedinstallEnv()in test/harness.ts would be the follow-up. Kept local here to stay within one file.Assertion changes, case by case:
<package dir>/hi!(basename exact, dirname compared throughrealpath), stderr empty. WasendsWith("hi!").bun.locktarball urls compared withtoEqual, exit code. Were exit code only. "package config overrides home config" also asserts the home registry recorded zero requests.loadNpmrccases: the whole result object withtoEqualinstead of one or two fields. The option matrix no longer creates directories it never read..npmrclookup: theRegistry:line compared exactly and stderr"", plus the new failing control with the exacterror: missing authenticationline. WasstringContaining/not.stringContaining..envcases also pin the".env"loaded line._authfrom an empty.envvalue: the full warning (value masked, location computed from the port length), the401from verdaccio,failed to resolve, exit code 1, no lockfile. WastoContain("received an empty string")with the exit code unchecked (it was 0 from the warm cache)._password: full stderr snapshot plusnot.toContain(secret).GET /@scope%2fprobewith scope A's token, registry B nothing, stderr snapshot, exit 1. Wassome(path.includes("probe")).--registryoverride: registry B received exactlyGET /no-depsand the tarballGET, both without authorization, registry A nothing, stdout/stderr snapshots, lockfile url on registry B.error:lines compared as a sorted list (the two 404 lines print in response order), exit 1.Flake precautions: no shared
$HOME, cache or verdaccio user state between cases,port: 0everywhere, no timing waits, the only order-dependent output (two concurrent 404s) is compared sorted, and the one column that depends on the random port's digit count is computed rather than snapshotted. Ran 8 times under the debug build, plus pinned to 4 and 2 cpus, plus once with verdaccio under the ASAN build (CI=true,--timeout=270000) where old and new both take ~41 s locally because verdaccio's ASAN startup dominates.CI durations of this file. A PR that modifies a test file runs it first in every shard (position 3), on a cold machine, so these are not comparable with main builds where it runs later:
The spread between builds of the same file at the same position (3.15 s to 10.74 s on debian aarch64 for the old file) is larger than the change itself, so the local debug-build numbers above are the measurement to go by. The checked-in median for this file on debian x64 is 5.06 s.
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