test(e2e): backfill coverage for the credential store, voice dry run and the e2e coverage gate

[M3gA-Mind]

Summary

• Backfills e2e cover for three behaviours merged in the last week that had no test which would fail if the fix were reverted. Found by an audit of the last 7 days of merges; this PR closes the gaps that audit named.
• Every test here was revert-checked against the specific hunk it covers — the fix was reverted locally, the test observed to fail naming its own assertion, and the fix restored. Results are tabulated below.
• One item in the audited slice (chore(tauri): remove obsolete provider webview bridge #5842) turned out to need no test, for a reason worth reading: see "What is deliberately not covered".
• Test-only. No product code touched.

Problem

The repo's domain e2e gate is a string match — it counts a literal appearing anywhere in tests/**/*_e2e.rs. A "pass" is therefore not evidence of coverage, and for these three changes it was not:

• fix(credentials): create the auth profile store owner-only #5795 (auth profile store written owner-only) — 0o600 appeared nowhere under tests/. tests/config_auth_app_state_connectivity_e2e.rs contains both AuthProfilesStore and PermissionsExt, so a name-based search scores it covered; that PermissionsExt use chmods the state directory for an app-state quarantine test and never reads the credential file's mode.
• fix(voice): make "Test Key" a real dry run instead of a save #5947 (validate_only is a dry run for stt, not only tts) — voice_test_provider and validate_only matched zero files under tests/.
• fix(ci): the domain e2e coverage gate was measuring a seventh of the surface #5936 (the coverage gate itself) — its only test asserted --help output and argument rejection. All three defects it fixed were unpinned. The one *_e2e.rs file matching check-domain-e2e-coverage matches it in two //! comments.

Solution

Each test drives the changed code path through the surface a user or caller actually reaches, not the library type the fix happens to live on.

tests/json_rpc_e2e.rs (+2 tests) — this target already declares required-features = ["voice"], so both run in the product lane.

• auth_store_provider_credentials_writes_an_owner_only_store_file — drives openhuman.auth_store_provider_credentials over the real JSON-RPC router, locates the resulting auth-profiles.json and asserts its mode is 0600. Going through the RPC (rather than AuthProfilesStore, which the existing unit test uses) means a future refactor that gives the RPC path a different writer is caught too.
• voice_test_provider_honours_validate_only_for_the_stt_workload — asserts an stt dry run short-circuits before any provider call. A reserved slug (cloud) is used because it is the one dry-run answer fully determined with no network.

scripts/__tests__/domain-e2e-coverage-gate.test.mjs (new, 3 tests) — fixture-driven, one test per defect #5936 fixed: discovery of ControllerSchema literals in include!-split *_part_NN.rs files, the hard failure when a declared namespace discovers nothing (it used to score 100%), and measuring a namespace MODULES does not name.

Revert-check results

Test	Fix reverted	Result
auth_store_provider_credentials_writes_an_owner_only_store_file	write_owner_only(&tmp_path, …) → fs::write(&tmp_path, …)	✅ failed on assert_eq!(mode, 0o600) — got 0o644 (a plain create in this environment yields 0o644)
voice_test_provider_honours_validate_only_for_the_stt_workload	if p.validate_only { → if p.validate_only && p.workload == "tts" {	✅ failed on the short-circuit assertion — got detail "STT test failed: no backend session token; sign in first"
gate: part-file discovery	restored the /(^|\/)schemas?(\.rs|\/)/ path filter	✅ failed on the part file's controller must be discovered
gate: unmeasurable namespace fails	disabled the declaredButMissing hard failure	✅ failed on an unmeasurable namespace must fail the gate — and only that test
gate: namespace outside MODULES measured	continued namespaces absent from MODULES	✅ failed on an unlisted namespace must still be measured

Rust Core Coverage is skipping on this PR, and not because of anything here. Its
gate is needs.changes.outputs['rust-core'] == 'true' && needs['rust-quality'].result == 'success'. Rust Quality fails on the pre-existing layout gate (an inline test module in
agent/harness/session/turn/context.rs, and tools/impl/filesystem/git_operations{,_tests}.rs
over the 750-line limit — none of them touched here), so the coverage lane never starts.
The consequence is worth someone's attention independently of this PR: while that gate is
red, no Rust test in the repository runs in CI on any pull request. PR #5958 shows the
same fail / skipping pair; #5947 and #5932, merged before the breakage, show pass /
pass.

Baseline: all five pass with the fixes in place. Restore: verified clean (git diff --stat empty on both reverted source files; the gate suite back to 3/3).

Two details worth noting from the run. The #5795 baseline reports the test twice — that is the parent and the umask 022 child re-exec, so the child mechanism is confirmed working, and on revert the parent correctly propagates (the owner-only credential-store check failed under umask 022). And gate revert B fails exactly one test, the one written for that defect; reverts A and C each fail two, because a fixture that cannot be discovered at all also cannot be measured — the discovery defect subsumes the scoping one.

What is deliberately not covered

#5842 (chore(tauri): remove obsolete provider webview bridge) gets no test, because there is no behaviour to pin. The audit flagged that clearAllAppData had stopped calling scheduleCefProfilePurge; on investigation, the Tauri command behind it had not existed for three weeks:

$ git show 1843706c3 --stat | grep cef_profile
 app/src-tauri/src/cef_profile.rs | 671 ----------------
$ git show 1843706c3 | grep -n "schedule_cef_profile_purge"
5141:-async fn schedule_cef_profile_purge(user_id: Option<String>) -> Result<String, String> {
5524:-            schedule_cef_profile_purge,

1843706c3 ("replace CEF runtime with upstream Wry") deleted the command and its invoke_handler registration, leaving the frontend wrapper, its unit tests, the Tauri permission entry and the docs orphaned. #5842 removed the orphaned caller — correct cleanup of a call that had been failing into a catch and a console.warn. A test asserting either the presence or the absence of that purge would be pinning an accident.

Two related notes are recorded for an owner rather than guessed at here: the removed unit tests asserted expect(mockInvoke).toHaveBeenCalledWith('schedule_cef_profile_purge', …) against a mocked bridge and so stayed green across the command's deletion; and since 1843706c3 nothing purges per-user browser profile data on "Clear App Data" while the dialog still promises "All other local data".

Submission Checklist

• Tests added or updated (happy path + at least one failure / edge case) per Testing Strategy — 5 tests; the gate suite is entirely failure-path (two of its three assert the gate fails), and each test was revert-checked
• Diff coverage ≥ 80% — N/A: test-only change, no product lines added
• Coverage matrix updated — N/A: no feature rows added, removed or renamed; this adds tests for behaviour already shipped
• All affected feature IDs from the matrix are listed in the PR description under ## Related — N/A: no matrix feature rows affected
• No new external network dependencies introduced (mock backend used per Testing Strategy) — the RPC tests use the existing in-repo mock upstream; the gate tests use temp-dir fixtures
• Manual smoke checklist updated if this touches release-cut surfaces — N/A: no release-cut surface changed
• Linked issue closed via Closes #NNN in the ## Related section — N/A: no issue; this backfills cover for already-merged PRs, referenced below

Impact

• Test-only: no runtime, platform, performance, security or compatibility impact.
• CI cost: two more tests in the existing json_rpc_e2e target (already built by the product lane) and one new node:test file in the scripts self-test lane, which runs in ~0.3s.
• main is currently red on the Rust Quality layout gate, which is pre-existing and unrelated — that gate scans src/openhuman only, and this PR touches tests/ and scripts/.

Related

• Backfills e2e cover for fix(credentials): create the auth profile store owner-only #5795, fix(voice): make "Test Key" a real dry run instead of a save #5947 and fix(ci): the domain e2e coverage gate was measuring a seventh of the surface #5936.
• Records why chore(tauri): remove obsolete provider webview bridge #5842 needs none.

Summary by CodeRabbit

• Tests
  • Added end-to-end coverage for domain coverage validation, including split schemas, missing controllers, and undeclared namespaces.
  • Added Unix-specific coverage confirming credential stores use owner-only permissions.
  • Added validation-only speech-to-text coverage, confirming managed providers can be validated without starting transcription.

[tinysweeper]

How this change flows

0 changed behaviours across 2 relationships. 2 surrounding behaviours are shown (60 graph nodes walked). 58 further behaviours left out to keep the diagram readable.

flowchart LR
  n0["format"]:::impacted
  n1["post_json_rpc"]:::impacted
  n1 -->|calls| n0
  n1 -->|tests| n0
  classDef changed fill:#0d4429,stroke:#238636,color:#e6edf3
  classDef impacted fill:#161b22,stroke:#6e7681,color:#c9d1d9
  classDef flagged fill:#5a1e02,stroke:#d93f0b,color:#ffffff
  classDef blocking fill:#67060c,stroke:#f85149,color:#ffffff

Loading

_{Green: changed behaviour. Grey: surrounding behaviour. Arrows name the call, use, implementation, or test relationship. Orange: has findings. Red: has a finding that blocks the merge.}

[tinysweeper]

tinysweeper found nothing blocking. Approving.

             $0.0122 · 61,151 in / 1,115 out · 18,625 cached (30%) · openrouter/openai/text-embedding-3-small, z-ai/glm-5.2, deepseek/deepseek-v4-flash · 689 embedded
critique:    $0.0059 · 26,188 in / 644 out   · 9,373 cached (36%)  · z-ai/glm-5.2, deepseek/deepseek-v4-flash
security:    $0.0055 · 25,944 in / 402 out   · 9,252 cached (36%)  · deepseek/deepseek-v4-flash, z-ai/glm-5.2
description: $0.0008 · 9,019 in  / 69 out    · 0 cached (0%)       · deepseek/deepseek-v4-flash

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📝 Walkthrough

Walkthrough

The pull request adds end-to-end regression tests for domain coverage discovery and JSON-RPC provider behavior. The tests cover split schema files, missing controllers, undeclared namespaces, credential file permissions, and STT validation-only requests.

Changes

Domain coverage gate tests

Layer / File(s)	Summary
Coverage gate regression scenarios scripts/__tests__/domain-e2e-coverage-gate.test.mjs	The tests create temporary schema fixtures and execute the coverage gate. They verify split-file controller discovery, explicit failure for namespaces without controllers, and measurement of namespaces absent from MODULES.

JSON-RPC provider tests

Layer / File(s)	Summary
Provider storage and validation scenarios tests/json_rpc_e2e.rs	Unix-only tests run credential storage under umask 022, verify that auth-profiles.json has mode 0600, and confirm that STT requests with validate_only: true return managed-provider success without transcription.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to c3a6f

This test-only change adds coverage without changing product behavior, runtime configuration, permissions, or deployment defaults; no actionable merge-blocking risk remains beyond normal checks and review.

Suggested reviewers: yellowsnnowmann

Poem

A rabbit tests each schema part,
And checks the namespaces from the start.
Secret files keep permissions tight,
While STT validation skips the flight.
The coverage gates now mark the way,
With sturdy checks for every day.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 1 files. (1 skipped: 1…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the test coverage added for the credential store, voice dry-run behavior, and end-to-end coverage gate.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 1 files. (1 skipped: 1 too large.)

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Actionable comments posted: 2

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Inline comments:
In `@scripts/__tests__/domain-e2e-coverage-gate.test.mjs`:
- Line 49: Update the temporary-directory setup around the root variable to use
the platform-aware tmpdir() from node:os instead of falling back to the
hardcoded “/tmp” path, while preserving the existing domain-e2e-gate prefix for
mkdtempSync.

In `@tests/json_rpc_e2e.rs`:
- Around line 14173-14179: Remove the early skip in the
auth_store_provider_credentials_writes_an_owner_only_store_file test and run the
permission assertion in an isolated child process configured with a permissive
umask such as 022, without changing the main test process’s global umask;
preserve the RPC call and owner-only permission verification.

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Actionable comments posted: 1

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Inline comments:
In `@tests/json_rpc_e2e.rs`:
- Line 14176: Update the shell command construction in the child permission
regression test to pass the executable path as a safely escaped shell argument
instead of embedding exe.display() directly in single quotes. Preserve the
existing umask, exact-test, and test-thread arguments while ensuring paths
containing apostrophes execute correctly.

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