chore(workflow): migrate unit test runner from vitest to rstest#2698
chore(workflow): migrate unit test runner from vitest to rstest#2698fi3ework wants to merge 17 commits into
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| coverage: createCoverageConfig(__dirname), | ||
| testEnvironment: 'node', | ||
| include: ['tests/**/*.test.ts'], |
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This node-target config is the only Rstest config for suites importing @midscene/shared/img that does not apply photonExternal. The evaluation tests import saveBase64Image / imageInfoOfBase64, which pulls in shared/src/img/get-photon and its @silvia-odwyer/photon dynamic import; without output.externals, Rspack tries to bundle that native/wasm package and the run can fail before tests start. Add output: { externals: photonExternal } here as in the other node test configs.
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| coverage: createCoverageConfig(__dirname), | ||
| testEnvironment: 'node', | ||
| include: ['tests/**/*.test.ts'], |
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The deleted Vitest config loaded ../../.env, but this replacement config no longer runs the repo-level dotenv setup. When running the package scripts such as pnpm --filter @midscene/evaluation evaluate:locator with model credentials only in the workspace .env, the Rstest worker will not inherit MIDSCENE_MODEL_*; the test files' own dotenv.config() resolves from packages/evaluation, so globalModelConfigManager.getModelConfig() can fail with missing model configuration. Add the same globalSetup used by the other AI-backed Rstest configs (Rstest documents that globalSetup env mutations are propagated to node workers: https://rstest.rs/config/test/global-setup).
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| }, | ||
| "devDependencies": { | ||
| "@rslib/core": "^0.18.3", | ||
| "@rstest/core": "0.10.6", |
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This migrated package now depends on @rstest/core@0.10.6, but the lockfile for that package declares engines: {node: ^20.19.0 || >=22.12.0} while the workspace still advertises Node >=18.19.0. On a documented Node 18.x development environment, pnpm --filter @midscene/core test now invokes a runner outside the supported engine range; either bump the repo's Node requirement everywhere or use a runner version compatible with Node 18.
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| import { getModelRuntime } from '@/ai-model/models'; | ||
| import { globalModelConfigManager } from '@midscene/shared/env'; | ||
| import { expect, test, vi } from 'vitest'; | ||
| import { expect, rs, test } from '@rstest/core'; |
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After switching this file to @rstest/core, the existing test(..., { timeout }, async () => ...) calls below no longer match Rstest's documented signature, which takes the callback second and options third. When AITEST=true runs the core AI tests, these cases will be registered with the options object in the callback slot instead of exercising AiLocate*; move the async function to the second argument and the timeout object to the third (or rely on rs.setConfig).
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| export default function setup() { | ||
| dotenv.config({ | ||
| path: path.resolve(__dirname, '..', '.env'), | ||
| override: true, |
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With override: true, this global setup replaces values already provided by the shell or CI whenever a workspace .env exists. That regresses the previous non-core Vitest configs where MIDSCENE_MODEL_* or related credentials passed inline (for example to compare models locally) won over .env; AI tests will silently use the stale file values inside Rstest workers. Drop the override unless a specific suite needs file values to take precedence.
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Migrate the unit test runner from vitest to @rstest/core 0.11.0 and remove
workarounds that 0.11.0 fixed.
Removed workarounds (fixed upstream in rstest 0.11.0):
- setSystemTime now works without a prior useFakeTimers (rstest#1463).
- new URL(import.meta.url) fixtures and svg assets resolve from on-disk
source, so the join(__dirname) and regex-src workarounds are dropped
(rstest#1464).
- TestOptions is accepted as it()'s second argument again, so report
timeout options move back to their vitest position (rstest#1453).
- Bare rs.mock('x') auto-automocks, so { mock: true } is dropped
(rspack#14418).
Kept workarounds (still required on 0.11.0, verified):
- Sync mock factories sourcing actuals via import attributes, since async
factories are now a hard error (rstest#1459).
- Skips for variable dynamic imports that bypass rs.mock (rstest#1454) and
for mocking deps used inside externalized workspace packages (rstest#1456);
studio keeps output.bundleDependencies for the same reason.
Also adapt to 0.11.0 breaking changes: drop pool.minWorkers (rstest#1451)
in the CLI yaml runner.
Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
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| include: testFiles, | ||
| testTimeout: 3 * 60 * 1000, // Global timeout set to 3 minutes | ||
| retry: process.env.CI ? 1 : 0, // Retry failed tests once in CI to handle AI flakiness | ||
| errors: process.env.CI ? { unhandled: false } : undefined, // showcase.test.ts is not stable |
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When CI runs the web AI suite, this no longer suppresses unhandled errors: @rstest/core@0.11.0's public config does not define an errors key, so Rstest ignores this value. The previous Vitest config used dangerouslyIgnoreUnhandledErrors, so showcase.test.ts-style unhandled errors can now fail the run despite the comment; the same migrated key also appears in the android/computer/harmony/ios configs.
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Follow-up to the vitest->rstest migration: fix the type errors surfaced by
the `type-check:tests` step (tsc --noEmit over every test file).
- tsconfig: drop the `module: ES2020` override in android / android-playground
/ harmony so they inherit `ESNext` from the base config, which is required
for the `with { rstest: 'importActual' }` import attributes.
- merge-reports / report-merging: migrate to rstest's TestResult API
(`ctx.task.result?.state` -> `.status`; compute duration from the test's own
local `startTime` instead of the removed `result.startTime`).
- android page.test.ts: spread the `importActual` namespace directly for the
mocked `node:fs` default export (the namespace has no `.default`).
- studio launch-electron.test.ts: annotate the untyped `.mjs` dynamic imports
with `@ts-expect-error`.
- coerce `skipIf(string | undefined)` conditions to boolean (rstest's `skipIf`
is typed stricter than vitest's).
- move `describe` option objects from the 3rd argument to the 2nd
(`describe(name, options, fn)`); rstest only accepts a number as the 3rd arg.
Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
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| rs.mock('@rstest/core', () => ({ | ||
| test: mocks.rstestTest, | ||
| })); |
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When the CLI unit suite runs this file under Rstest, this mock targets the same module that supplies the file's own beforeEach, describe, expect, rs, and test imports. Rstest documents that rs.mock is hoisted and the module is mocked even for imports written before the mock, so the returned object with only test can replace the runner API used to register these tests, leaving describe/expect/rs undefined or test as the stub instead of the real runner. Use an importActual partial mock or inject the fake test without mocking the runner module itself.
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… fixes Temporarily override @rstest/core to the pkg.pr.new preview (@b704252) that carries the fixes for the two mock-typing bugs the migration surfaced (rstest#1514 toHaveBeenCalledBefore/After, rstest#1515 Mocked<T> for constructable+callable members with a `this` parameter). This clears the `type-check:tests` errors in android page.test.ts and playground server-interact.test.ts. Revert this override to a normal @rstest/core release once the fixes ship. Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
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| testTitle: `${ctx.task.name}`, | ||
| testDescription: 'description', | ||
| testDuration: (Date.now() - ctx.task.result?.startTime!) | 0, | ||
| testDuration: (Date.now() - startTime) | 0, |
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When the Android AI merge-report test finishes, startTime comes from performance.now() but this subtracts it from Date.now(). That mixes monotonic and epoch clocks, so the duration is roughly the current epoch time and the | 0 truncates it to a bogus 32-bit value in the merged report metadata. Use performance.now() - startTime here, as the web merge-report test does, or record startTime with Date.now().
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| @@ -54,7 +54,7 @@ describe('Test Setting', () => { | |||
| testId: `${ctx.task.name}`, | |||
| testTitle: `${ctx.task.name}`, | |||
| testDescription: 'description', | |||
| testDuration: (Date.now() - ctx.task.result?.startTime!) | 0, | |||
| testDuration: (Date.now() - startTime) | 0, | |||
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When the Harmony AI merge-report test finishes, startTime comes from performance.now() but this subtracts it from Date.now(). That mixes monotonic and epoch clocks, so the duration is roughly the current epoch time and the | 0 truncates it to a bogus 32-bit value in the merged report metadata. Use performance.now() - startTime here, as the web merge-report test does, or record startTime with Date.now().
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The drag test came in from upstream (web-infra-dev#2766) still written for vitest; port it to rstest (`vitest` -> `@rstest/core`, `vi.*` -> `rs.*`) so the merged branch type-checks and runs under the new test runner. Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
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| @@ -0,0 +1,19 @@ | |||
| import path from 'node:path'; | |||
| import dotenv from 'dotenv'; | |||
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When any config that lists this file in globalSetup runs, Rstest loads the setup module from scripts/ before starting workers. This new root-level module imports dotenv, but the workspace root package.json does not declare dotenv (it is only declared by individual packages), so a clean pnpm install will not expose a /workspace/midscene/node_modules/dotenv symlink for this importer; suites such as core/cli/computer can fail during global setup with Cannot find module 'dotenv' before tests start. Add dotenv to the root devDependencies or avoid importing it from the root script.
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The v8 coverage provider (@rstest/coverage-v8) retains per-file v8 coverage within a single worker, so memory grows with the number of test files sharing that worker. @midscene/computer runs its 13 unit-test files in one worker (pool.maxWorkers: 1) and the coverage run OOMs — SIGSEGV in CI, JavaScript heap OOM locally — while the same suite passes without coverage. rstest recommends the istanbul provider, whose coverage processing keeps memory flat (rstest#1154); computer coverage now passes at the default heap. Reported the v8 provider issue upstream: web-infra-dev/rstest#1524. Pin @rstest/coverage-istanbul to the same pkg.pr.new preview build as @rstest/core; revert both overrides to released versions once rstest ships the fixes. Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
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| "@rstest/core": "https://pkg.pr.new/web-infra-dev/rstest/@rstest/core@b704252", | ||
| "@rstest/coverage-istanbul": "https://pkg.pr.new/web-infra-dev/rstest/@rstest/coverage-istanbul@b704252" |
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This override makes every clean pnpm install resolve both Rstest packages from the pkg.pr.new preview tarballs instead of the released 0.11.0 versions declared in the package manifests. In CI or developer environments that only allow the npm registry, or if the preview artifact/service becomes unavailable, installs fail before any build or test can run; it also means the repo is testing against unreleased code that is not represented by the dependency specs. Please use a published Rstest version or remove the preview override before merging.
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The pinned pkg.pr.new preview (@rstest/coreb704252) regressed JSX to the classic runtime for files whose environment is overridden via a `@vitest-environment` docblock, breaking React component tests with "React is not defined" (web-infra-dev/rstest#1530, introduced by rstest web-infra-dev#1475). Released 0.11.0 already ships the coverage-istanbul concurrency fix, so drop both preview overrides and fall back to the stable release. Suppress the two type-only fixes lost by the downgrade with @ts-expect-error, tracked to rstest#1530: - Mocked<T> assignability to T (android page.test.ts) - call-order matcher accepting a Mock arg (playground server-interact) Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
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| import { tmpdir } from 'node:os'; | ||
| import { dirname, join } from 'node:path'; | ||
| import { describe, expect, it } from 'vitest'; | ||
| import { describe, expect, it } from '@rstest/core'; |
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When this migrated suite runs under @rstest/core@0.11.0, the two existing it(..., { timeout }, async () => ...) cases in this file (the 100-report merge and large-inline-image merge tests) are parsed with the options object in the callback slot, so those regression callbacks are not exercised correctly. Move the async callback to the second argument and put the timeout after it, or configure the timeout for the file.
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Picks up the fix where a test case that crashes its worker is now reported as a failed test case (web-infra-dev/rstest#1535). Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
# Conflicts: # packages/android/tests/unit-test/page.test.ts # packages/core/tests/unit-test/action-param-validation.test.ts
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| globalSetup: [ | ||
| path.resolve(__dirname, '../../scripts/rstest-dotenv-setup.ts'), | ||
| ], | ||
| include: enableAiTest ? ['tests/ai/**/**.test.ts'] : basicTest, |
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With this default Rstest include, pnpm --filter @midscene/core test still picks up files that import vitest (rg "from 'vitest'" --glob '*.{ts,tsx,mjs}' finds inspect-multi-frame, recorder-frame-sequence, ui-observer, agent-ui-observer, and dump-screenshot-sequence under packages/core/tests/unit-test). Since this commit removes all vitest package entries from the workspace manifests, those tests fail at module resolution before the suite can run; migrate the remaining imports to @rstest/core or exclude them until converted.
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| @@ -1,14 +1,14 @@ | |||
| import type { ExecutorContext } from '@midscene/core'; | |||
| import { describe, expect, it, vi } from 'vitest'; | |||
| import { describe, expect, it, rs } from '@rstest/core'; | |||
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This import no longer provides vi, but the later passes action-level keyboardTypeDelay case in this same file still calls vi.fn() for keyboard.type and schedulePendingVisualUpdate. When the web-integration unit suite reaches that case, it will throw ReferenceError: vi is not defined; convert those two remaining factories to rs.fn() with the rest of the file.
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Upstream added new test files that still imported from 'vitest'; port
them to '@rstest/core' (vi -> rs). Rewrite the async mock factory in
inspect-multi-frame.test.ts to a sync factory with a
`with { rstest: 'importActual' }` import, which rstest requires.
Also drop the now-unused `@ts-expect-error` directives that worked
around the Mocked<T> regression; @rstest/core 0.11.1 fixes it, so the
directives are flagged as unused by the type checker.
Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
# Conflicts: # packages/cli/tests/unit-test/config-factory.test.ts # packages/cli/tests/unit-test/create-yaml-player.test.ts # packages/web-integration/tests/ai/web/puppeteer/tab-navigation.test.ts # packages/web-integration/tests/ai/web/puppeteer/test-utils.ts # packages/web-integration/tests/unit-test/puppeteer/agent-launcher.test.ts # packages/web-integration/tests/unit-test/yaml/utils.test.ts
…ssion @rstest/core@0.11.1 drops the pluginReact automatic JSX runtime for files whose test environment is selected via a per-file docblock (node -> jsdom), so their JSX compiles to classic React.createElement and throws 'React is not defined' at render time. Whole-file describe.skip until the rstest fix lands. Also add RSTEST-MIGRATION-WORKAROUNDS.md as the central registry of all rstest-migration skips/workarounds (JSX runtime, externalized-dependency mocks web-infra-dev#1456, variable dynamic imports web-infra-dev#1454), each tied to a TODO(rstest) marker in the code. Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
Istanbul instruments source by injecting cov_*() counters. When a function defined in an instrumented file (e.g. src/puppeteer/base-page.ts) is passed to Puppeteer's page.evaluate, it is serialized into the browser context where cov_* is undefined, throwing 'ReferenceError: cov_… is not defined' and skewing timing enough to break race-sensitive tests. The v8 provider uses the runtime profiler without rewriting source, matching the vitest behavior these suites relied on. Adds the @rstest/coverage-v8 dev dependency. Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
checkComputerEnvironment() and listDisplays() call @computer-use/libnut, which invokes X11 XOpenDisplay. On a headless Linux runner (no DISPLAY) the native call segfaults and hard-crashes the worker — uncatchable from JS. Guard both cases with it.skipIf(linux && !DISPLAY); they still run locally and on any runner with a real display. Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
…rumentation Reverts the switch to the v8 provider (9f207ee): v8 OOMs the computer package's single-worker coverage run, which is why istanbul was chosen. Instead fix the 'cov_… is not defined' failures at the source: istanbul injects module-scoped cov_*() counters, and base-page.ts hands closures to Puppeteer/Playwright page.evaluate, which serializes them into the browser realm where cov_* is undefined. Excluding base-page.ts from coverage skips its instrumentation (it is the only file in the repo that passes inline closures to .evaluate), so no test is skipped and the provider stays istanbul. Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
…tanbul hints Under the istanbul coverage provider, `base-page.ts` closures handed to Puppeteer/Playwright `page.evaluate` are serialized via `toString()` and run in the browser realm, where istanbul's module-scoped `cov_*` counter does not exist — throwing `ReferenceError: cov_… is not defined`. The previous fix added the whole file to `coverage.exclude`, which dropped ~15% of @midscene/web's coverage (base-page.ts is ~1360 lines of Node-side logic on top of ~10 tiny browser closures). Replace that blanket exclude with `/* istanbul ignore next */` on each of the 10 statements that pass an inline closure to `.evaluate(`, so istanbul skips instrumenting only those closure subtrees while the rest of the file stays measured. Verified in a sandbox that `@rstest/coverage-istanbul` (swc-plugin-coverage-instrument) honors the hint, and in-repo that the coverage run no longer throws `cov_*` and base-page.ts is measured again (~52% statements). The provider stays `istanbul` on purpose — v8 OOMs @midscene/computer's single-worker coverage run (web-infra-dev/rstest#1524). Claude-Session: https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE
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| coverage: createCoverageConfig(__dirname), | ||
| globals: true, | ||
| testEnvironment: 'node', | ||
| include: ['tests/**/*.test.ts'], |
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When pnpm --filter @midscene/playground test runs, this include picks up suites such as tests/unit/recorder-ui-describer.test.ts and server tests that import @midscene/shared/img; that pulls in shared/src/img/get-photon with Photon native/wasm dynamic imports. Unlike the other node Rstest configs, this one does not set output.externals: photonExternal, so Rspack can try to bundle those Photon packages and fail before the playground suite executes. Add the shared Photon externalization here.
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|
Created upstream CI relay PR #2775 at the exact source SHA Please continue review and merge on this original PR. The relay PR is draft-only and must not be merged. |
|
Full upstream CI has finished on relay PR #2775 at the exact source SHA Passed:
Failed:
Runs:
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What
Migrate the repository's own unit-test tooling from vitest to rstest (
@rstest/core0.11.0) across every package and app.rstest.config.ts(replacingvitest.config.ts).@silvia-odwyer/photonexternals, and the__VERSION__define — is factored intoscripts/rstest-*.tsinstead of being copy-pasted per package.vitest/@vitest/*are fully removed from everypackage.jsonand the lockfile. The only remainingviteststring is the// @vitest-environment jsdomdocblock (24 files), which rstest natively honors.Rebased onto latest
mainThis branch was rebased onto the latest
main(41 commits ahead of the original base). The rebase pulled in 17 new test files and 7 auto-merged files that upstream had authored against vitest; all were migrated to rstest as part of this branch.Upgraded to rstest 0.11.0 and pruned workarounds
Bumped
@rstest/core0.10.6 → 0.11.0. The following workarounds the earlier migration carried are no longer needed and were removed after verifying in-repo:rs.useFakeTimers({ toFake: ['Date'] })beforesetSystemTimesetSystemTimenow works standalonejoin(__dirname, …)instead ofnew URL('./x', import.meta.url)for fixturesnew URL()/wasm resolve from on-disk sourcesrcassertion for an inlined svg asset{ timeout }options to the 3rd argit(name, options, fn)(options as 2nd arg) accepted againrs.mock('x', { mock: true })rs.mock('x')now auto-automocksAlso adapted to a 0.11.0 breaking change: dropped the removed
pool.minWorkersfield (rstest#1451) from the CLI yaml runner (packages/cli/src/framework/rstest-runner.ts).Known rstest limitations still worked around (kept, re-verified on 0.11.0)
These are genuine rstest gaps that still reproduce on 0.11.0; the workarounds remain, each with a
TODOpointing at the tracking issue:rs.mock—rs.mock()is applied by an rspack build-time transform, so source that doesconst m = 'undici'; await import(m)(used to dodge bundler static analysis) loads the real module at runtime and the mock never applies. Affected:apps/studiolaunch-electron(switched to static string-literal imports), and skipped assertions incoreproxy-configurationandiosagent(device-class override). Re-verified: the mockedProxyAgentreceived 0 calls. → [Bug]: rs.mock is bypassed for modules loaded via dynamic import() with a non-literal specifier rstest#1454rs.mock()on@midscene/shared/envdoesn't reach the env singleton read by@midscene/core/utilswhen that package is externalized, so the spy is never hit. Affected:apps/studiokeepsoutput.bundleDependencies: true; skipped legacy-cache assertions inclicreate-yaml-playerand oneplaygroundserver-interactcase (the equivalent assertions run in focused suites that mock only@midscene/shared/env). Re-verified: spy received 0 calls. → [Bug]: rs.mock() does not prevent evaluation of an externalized dependency (real module still runs) rstest#1456No pre-existing test was newly skipped by this migration beyond the two rstest gaps above.
Validation
pnpm run lint(biome check + check-dependency-version) — passnx run-many --target=build, 27 projects) — passnx run-manyfan-out,corereport-merge-countcan flake on temp-dir/timing contention (heavy filesystem I/O); it passes standalone and within the fullcoresuite.https://claude.ai/code/session_018fJUtMHskx7MtXcnWBELwE