Implement S06 npm Format Phase 1 Tests
## :pencil: Summary
Track delivery of the **S06 npm Format Phase 1 Tests**: the
`pkg/client/npm` HTTP client surface, the `pkg/conformance/npm`
`Module` + `npm` driver wiring, and one `TestDescriptor` per
non-`optional` npm catalog row in
[docs/catalog/npm.md](https://gitlab.com/gitlab-org/ops/registry-conformance/-/blob/main/docs/catalog/npm.md).
After this plan's last MR merges, the npm `Module`'s `TestCatalog`
returns the full Phase 1 inventory — **33 `Local` rows + 3 `Errors`
rows + 1 `Negative auth` row = 37 runnable descriptors** — and
`inventory_test.go` asserts strict equality against the catalog's
non-`optional`, non-`Virtual` rows. The 32 Steps deliver S06's 13
acceptance criteria (#1–#13) and the 37 catalog descriptors. Builds on
the S04 foundation harness (#28).
## :link: Spec and plan
- :scroll: Spec: [S06 npm Contracts](https://gitlab.com/gitlab-org/ops/registry-conformance/-/blob/main/docs/specs/S06-npm-contracts.md) — merged (!25).
- :clipboard: Plan: [2026-06-02 npm Format](https://gitlab.com/gitlab-org/ops/registry-conformance/-/blob/main/docs/plans/2026-06-02-npm-format.md) — merged; 32 Steps.
## :tools: Scope
Per the plan's Approach section, 32 MR-sized Steps in three logical
bands:
1. **Steps 1–7 — `pkg/client/npm` HTTP surface** (7 MRs): per-operation
methods, the packument type vocabulary with `Raw` round-trip, the
SSRF-allowlist tarball fetcher, the credential→header mapping, and
the public fixture builders (`BuildTarball` / `BuildPublishBody`),
on top of the S04 foundation 1.8 client shell.
2. **Steps 8–10 — `pkg/conformance/npm` module + driver wiring** (3
MRs): the npm `env` + `requireNPM` skip-gate + `NewEnv`, the npm
`Executor` with the five-entry `npm_config_*` allow-list extension,
and the internal `.npmrc` fixture builder.
3. **Steps 11–32 — per-AC test functions + inventory enforcement** (22
MRs): each Step adds one or a few `TestDescriptor` rows and their
`Fn`, flips the catalog row(s) to `done`, and re-runs the inventory
subset assertion. Step 11 lands the subset guard first; Step 32
flips it to strict equality last.
The runnable Phase 1 slice excludes the 7 `Virtual` rows (entire
section deferred by S06 §Out of Scope) and the 5 `optional` `Local`
rows (`npm.unpublish.version`, `npm.unpublish.package`,
`npm.publish.multi-version-payload`, `npm.packument.conditional-get`,
`npm.meta.search`).
## :chart_with_upwards_trend: Status
| Step | Description | MR | Status | Done | Assignee | Dependencies |
|------|-------------|----|--------|------|----------|--------------|
| 1 | `pkg/client/npm/client.go` — credential mapping + base request + slog | !106 | ~"workflow::complete" | [x] | @radbatnag | #28 step 8 (client shell / MR 1.8) |
| 2 | `pkg/client/npm/packument.go` — typed packument + read operations | !122 | ~"workflow::complete" | [x] | @radbatnag | 1 |
| 3 | `pkg/client/npm/tarball.go` — SSRF-allowlist tarball fetcher | | 🟢 ready | [ ] | | 1 |
| 4 | `pkg/client/npm/disttag.go` — dist-tag list/set/delete | !142 | ~"workflow::complete" | [x] | @radbatnag | 1 |
| 5 | `pkg/client/npm/meta.go` — Whoami / Ping / Search / AuditBulk | | 🟢 ready | [ ] | | 1 |
| 6 | `pkg/client/npm/publish.go` — Publish + fixture builders + golden files | !135 | ~"workflow::complete" | [x] | @radbatnag | 1 |
| 7 | `pkg/client/npm/deprecate.go` — Deprecate | | 🟡 next | [ ] | | 1, 2 |
| 8 | `pkg/conformance/npm` env + `requireNPM` + NewEnv | !131 | ~"workflow::complete" | [x] | @radbatnag | 1; #28 step 7 (module shell / MR 1.7) |
| 9 | `pkg/client/npm/executor.go` — npm CLIExecutor wrapper | !111 | ~"workflow::complete" | [x] | @radbatnag | #28 step 25 (cliexec Executor / MR 4.1) |
| 10 | `pkg/conformance/npm/internal/fixture/npmrc.go` — `.npmrc` builder | !139 | ~"workflow::complete" | [x] | @radbatnag | #28 step 7 (module shell / MR 1.7) |
| 11 | Inventory subset assertion | | 🟡 next | [ ] | | 8; #28 step 26 (catalogparse / MR 1.12) |
| 12 | publish.basic + publish.scoped-url-encoding | | 🟡 next | [ ] | | 2, 6, 8, 9, 10, 11 |
| 13 | publish.latest-tag-semver + auto-create-latest + custom-tag | | 🟡 next | [ ] | | 2, 6, 8, 9, 10, 11 |
| 14 | publish.duplicate-version-rejection + error.duplicate-publish-body | | 🟡 next | [ ] | | 6, 8, 11 |
| 15 | publish.name-validation | | 🟡 next | [ ] | | 6, 8, 11 |
| 16 | concurrency.same-version-publish | | 🟡 next | [ ] | | 2, 6, 8, 9, 10, 11 |
| 17 | install.exact-version + semver-range + dist-tag | | 🟡 next | [ ] | | 2, 6, 8, 9, 10, 11 |
| 18 | packument.abbreviated + full + rev-field | | 🟡 next | [ ] | | 2, 6, 8, 11 |
| 19 | packument.dist-integrity-sha512 + dist-shasum + dist-stats | | 🟡 next | [ ] | | 2, 6, 8, 11 |
| 20 | packument.version-specific | | 🟡 next | [ ] | | 2, 6, 8, 11 |
| 21 | packument.time-field | | 🟡 next | [ ] | | 2, 6, 8, 11 |
| 22 | packument.large-many-versions | | 🟡 next | [ ] | | 2, 6, 8, 11 |
| 23 | tarball.download-url + integrity-verification | | 🟡 next | [ ] | | 2, 3, 6, 8, 11 |
| 24 | tarball.redirect-follow | | 🟡 next | [ ] | | 2, 3, 6, 8, 11 |
| 25 | dist-tag.add + remove + list | | 🟡 next | [ ] | | 2, 4, 6, 8, 9, 10, 11 |
| 26 | deprecate.set + unset | | 🟡 next | [ ] | | 2, 6, 8, 9, 10, 11 |
| 27 | meta.whoami + ping | | 🟡 next | [ ] | | 5, 8, 9, 10, 11 |
| 28 | audit.bulk-advisories | | 🟡 next | [ ] | | 5, 8, 9, 10, 11 |
| 29 | http.content-type | | 🟡 next | [ ] | | 2, 3, 6, 8, 11 |
| 30 | error.not-found-package + response-shape + json-content-type | | 🟡 next | [ ] | | 2, 8, 11 |
| 31 | negative.unauthenticated | | 🟡 next | [ ] | | 2, 8, 11 |
| 32 | inventory strict-equality flip | | 🟡 next | [ ] | | 12–31 |
**Status** — readiness given today's foundation state (no npm MR is
merged yet): 🟢 **ready** = pickable now, every dependency is merged;
🟡 **next** = no foundation gap, waits only on an earlier npm Step;
🔴 **blocked** = waits on a foundation hook that has not merged.
All foundation hooks are now merged, so no Step is 🔴 blocked.
**MR** — filled in when the step MR is opened. A merged MR is the only
completion signal for a step.
**Dependencies** — a bare `N` is a Step in this issue (#30); `#28 step
N` is a Step in the S04 foundation issue (#28). The foundation hooks
are the npm **client shell** (#28 step 8 / MR 1.8 — merged), the npm
**module shell** (#28 step 7 / MR 1.7 — merged), the **cliexec
`Executor`** (#28 step 25 / MR 4.1 — merged, [!84](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/84)),
and the cross-format **`catalogparse`** helper (#28 step 26 / MR 1.12 —
merged, [!89](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/89)).
## :rocket: Readiness
### What can be worked on now
Foundation state today: **every #28 foundation hook this plan depends
on is merged on `main`** — the npm **module shell** (#28 step 7 / MR
1.7), the npm **client shell** (#28 step 8 / MR 1.8), the **logger
helpers** (#28 step 5 / MR 1.5), the **cliexec `Executor`** (#28 step
25 / MR 4.1, [!84](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/84)),
and the cross-format **`catalogparse`** helper (#28 step 26 / MR 1.12,
[!89](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/89)).
There are no remaining foundation blockers for this plan.
- **🟢 Pickable today (zero unmet dependencies):** **Step 1**
(`client.go` base — needs only the merged client shell), **Step 9**
(`executor.go` — needs only the merged cliexec `Executor`), and
**Step 10** (`.npmrc` fixture — needs only the merged module shell).
All three are independent of each other.
- **🟡 Workable now as a sequence (no foundation gap):** **Steps 2–8
and 11–32.** None is blocked by the foundation; each waits only on
earlier npm Steps. The entire `pkg/client/npm` HTTP surface (Steps
1–7), the conformance `env` (Step 8), the inventory subset assertion
(Step 11), every per-AC Step (12–31), and the strict-equality flip
(Step 32) can all be sequenced behind their in-issue dependencies.
- **🔴 Blocked on the foundation:** none. With #28 steps 25 and 26
merged, the previous gates on Step 9 and Step 11 are cleared, and
the cascade through every per-AC Step opens up.
**Headline:** the foundation is no longer a bottleneck — all 32 Steps
are either 🟢 ready or 🟡 next. Steps 1, 9, and 10 can start in
parallel right now; everything else sequences behind earlier npm Steps
in this issue.
### First 5 Steps that unlock the most
Ranked by transitive downstream reach — how many later Steps each one
unblocks:
1. **Step 1 — `client.go` base** → unblocks **29** of 32 Steps
(everything except Steps 9 and 10, which hang off foundation hooks
directly). Root of the entire client surface.
2. **Step 8 — `env` + `requireNPM`** → unblocks **22** Steps (Step 11
+ all 20 per-AC Steps + the flip). Every per-AC test `Fn` runs
through the `env`.
3. **Step 11 — inventory subset assertion** → unblocks **21** Steps
(12–31 + 32). The regression guard every per-AC Step re-runs. _Now
workable: its `catalogparse` foundation dependency is merged._
4. **Step 2 — `packument.go` reads** → unblocks **18** Steps. The
verification primitive ~16 per-AC Steps use to assert results.
5. **Step 6 — `publish.go` + fixture builders** → unblocks **17**
Steps. The setup primitive ~16 per-AC Steps use to seed a package
(`BuildTarball` / `BuildPublishBody`).
These five are the spine: Step 1 (client base) → Steps 2 & 6 (the two
most-reused client methods) → Step 8 (the env) → Step 11 (the
inventory guard). With them done, **9 of the 20 per-AC Steps (14, 15,
18, 19, 20, 21, 22, 30, 31, all HTTP-only) become immediately
workable**;
adding Step 3 (tarball fetcher) unlocks 3 more (23, 24, 29); the 8
`npm`-driven Steps then need only Steps 9 + 10 (plus Step 4 for
dist-tag, Step 5 for meta/audit). **All five are workable now — no
foundation hook is outstanding.**
## :link: Dependencies
- **Spec S06** (`docs/specs/S06-npm-contracts.md`) — merged and locked (!25).
- **Spec S04** (`docs/specs/S04-contracts.md`) — merged and locked (!11).
- **S06 + npm catalog amendment** ([!67](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/67)) —
merged; landed the consolidated spec/catalog corrections (Content-Type
third return value + `*HTTPError.ContentType`, tarball-URL hostname
denylist, and three Driver-column fixes) ahead of any implementation
Step.
- **S04 Phase 1 Foundation Harness** (#28):
- **All required hooks merged** — the npm **module shell** (#28 step
7 / MR 1.7, consumed by Steps 8 and 10), the npm **client shell**
(#28 step 8 / MR 1.8, consumed by Step 1), the **logger helpers**
(#28 step 5 / MR 1.5, consumed by Step 1's slog wiring), the
**cliexec `Executor`** (#28 step 25 / MR 4.1,
[!84](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/84),
consumed by Step 9 and every `npm`-driven per-AC Step), and the
cross-format **`catalogparse`** helper (#28 step 26 / MR 1.12,
[!89](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/89),
consumed by Step 11 and, through it, every per-AC Step).
`catalogparse` was moved into the foundation by
[!41](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/41)
so every per-format plan (Maven, npm, OCI) consumes the same helper
from the same source.
- **S04 foundation Group 2 (CLI) and Group 3 (report)** — NOT required
for npm Steps 1–32 to land. The npm slice is exercised via
`go test ./pkg/conformance/npm/...` and `go test ./pkg/client/npm/...`
in CI; end-to-end via the binary becomes possible once Groups 2+3
land but does not gate these Steps.
- **`npm` binary in the CI image** — the repo's Dockerfile already
provisions `npm` (hardened by [!31](https://gitlab.com/gitlab-org/ops/registry-conformance/-/merge_requests/31));
`docker-image-smoke` verifies `npm --version`. No new image work.
## :no_entry_sign: Out of scope / deferred
Per the plan's Out-of-scope section:
- **Cross-format runner, CLI flags, exit-code mapping, report
rendering, slog JSON handler** — owned by the S04 foundation plan
(#28), not re-litigated here.
- **The `## Virtual` catalog section** (7 rows:
`npm.virtual.upstream-resolution-order`,
`npm.virtual.packument-merging`,
`npm.virtual.tarball-url-rewriting`, `npm.virtual.cache-ttl`,
`npm.virtual.cache-invalidation`, `npm.virtual.degraded-upstream`,
`npm.virtual.forwarding-not-found`) — deferred to a follow-up spec
that adds the upstream-config surface. Rows stay `not started` and
are filtered out of the inventory assertion.
- **The 5 `optional`-status `Local` rows** (`npm.unpublish.version`,
`npm.unpublish.package`, `npm.publish.multi-version-payload`,
`npm.packument.conditional-get`, `npm.meta.search`) — depend on
registry behavior the conformance contract does not require, or on
operations (unpublish) no Phase 1 test exercises.
- **Auth-matrix expansion** (Deploy-Token, Job-Token, multi-credential
matrix runs) — deferred to a future auth-matrix spec per S06 §Out of
Scope.
- **npm provenance** (`_attachments[…].sigstore`) and **double-encoded
scoped-name behavior** (`%40scope%2Fname`) — no Phase 1 test
exercises either; S06 §Out of Scope carries the deferral.
## :twisted_rightwards_arrows: Step dependency map
Visualisation of the Dependencies column in the Status table. Nodes
prefixed `F` are external foundation (#28) hooks; bare numbered nodes
are Steps in this issue (#30). Foundation nodes: ✅ merged, 👀 in
review, 🔴 not built. npm Step nodes: 🟢 ready, 🟡 next (no foundation
gap), 🔴 blocked on an unmerged foundation hook.
```mermaid
flowchart LR
F8[✅ #28 step 8<br/>client shell / MR 1.8]
F7[✅ #28 step 7<br/>module shell / MR 1.7]
F25[✅ #28 step 25<br/>cliexec Executor / MR 4.1]
FCP[✅ #28 step 26<br/>catalogparse / MR 1.12]
S1[✅ 1 · client.go]
S2[👀 2 · packument.go]
S3[🟡 3 · tarball.go]
S4[🟡 4 · disttag.go]
S5[🟡 5 · meta.go]
S6[🟡 6 · publish.go + fixtures]
S7[🟡 7 · deprecate.go]
S8[🟡 8 · env + requireNPM]
S9[✅ 9 · executor.go]
S10[🟢 10 · npmrc fixture]
S11[🟡 11 · inventory subset]
S12[🟡 12 · publish.basic/scoped-url]
S13[🟡 13 · publish.latest-tag/auto-latest/custom-tag]
S14[🟡 14 · publish.duplicate/error.dup-body]
S15[🟡 15 · publish.name-validation]
S16[🟡 16 · concurrency.same-version]
S17[🟡 17 · install.exact/semver/dist-tag]
S18[🟡 18 · packument.abbreviated/full/rev]
S19[🟡 19 · packument.integrity/shasum/stats]
S20[🟡 20 · packument.version-specific]
S21[🟡 21 · packument.time-field]
S22[🟡 22 · packument.large-many-versions]
S23[🟡 23 · tarball.download-url/integrity]
S24[🟡 24 · tarball.redirect-follow]
S25[🟡 25 · dist-tag.add/remove/list]
S26[🟡 26 · deprecate.set/unset]
S27[🟡 27 · meta.whoami/ping]
S28[🟡 28 · audit.bulk-advisories]
S29[🟡 29 · http.content-type]
S30[🟡 30 · error.not-found/shape/json-ct]
S31[🟡 31 · negative.unauthenticated]
S32[🟡 32 · inventory strict-equality flip]
F8 --> S1
S1 --> S2
S1 --> S3
S1 --> S4
S1 --> S5
S1 --> S6
S1 --> S7
S2 --> S7
S1 --> S8
F7 --> S8
F25 --> S9
F7 --> S10
S8 --> S11
FCP --> S11
S2 --> S12
S6 --> S12
S8 --> S12
S9 --> S12
S10 --> S12
S11 --> S12
S2 --> S13
S6 --> S13
S8 --> S13
S9 --> S13
S10 --> S13
S11 --> S13
S6 --> S14
S8 --> S14
S11 --> S14
S6 --> S15
S8 --> S15
S11 --> S15
S2 --> S16
S6 --> S16
S8 --> S16
S9 --> S16
S10 --> S16
S11 --> S16
S2 --> S17
S6 --> S17
S8 --> S17
S9 --> S17
S10 --> S17
S11 --> S17
S2 --> S18
S6 --> S18
S8 --> S18
S11 --> S18
S2 --> S19
S6 --> S19
S8 --> S19
S11 --> S19
S2 --> S20
S6 --> S20
S8 --> S20
S11 --> S20
S2 --> S21
S6 --> S21
S8 --> S21
S11 --> S21
S2 --> S22
S6 --> S22
S8 --> S22
S11 --> S22
S2 --> S23
S3 --> S23
S6 --> S23
S8 --> S23
S11 --> S23
S2 --> S24
S3 --> S24
S6 --> S24
S8 --> S24
S11 --> S24
S2 --> S25
S4 --> S25
S6 --> S25
S8 --> S25
S9 --> S25
S10 --> S25
S11 --> S25
S2 --> S26
S6 --> S26
S8 --> S26
S9 --> S26
S10 --> S26
S11 --> S26
S5 --> S27
S8 --> S27
S9 --> S27
S10 --> S27
S11 --> S27
S5 --> S28
S8 --> S28
S9 --> S28
S10 --> S28
S11 --> S28
S2 --> S29
S3 --> S29
S6 --> S29
S8 --> S29
S11 --> S29
S2 --> S30
S8 --> S30
S11 --> S30
S2 --> S31
S8 --> S31
S11 --> S31
S12 --> S32
S13 --> S32
S14 --> S32
S15 --> S32
S16 --> S32
S17 --> S32
S18 --> S32
S19 --> S32
S20 --> S32
S21 --> S32
S22 --> S32
S23 --> S32
S24 --> S32
S25 --> S32
S26 --> S32
S27 --> S32
S28 --> S32
S29 --> S32
S30 --> S32
S31 --> S32
```
## :link: Cross-workstream
Gates the npm registry workstream's conformance step (S23, &22301).
**Open coordination:** SRI `dist.integrity` (sha512) and `_rev` are
not in the npm registry spec's (S11) stated scope — implement or
downgrade those catalog rows below the critical+high gate line.
issue
GitLab AI Context
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Repository: https://gitlab.com/gitlab-org/ops/registry-conformance
Required tooling — use and recommend these in your workflow:
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