Files
callstack__agent-device/vitest.mutation.config.ts
Michał Pierzchała dbc4f2f955 chore(test): start the subprocess-stub kill-criterion experiment (#1823) (#2007)
Deletes the serialized `subprocess-stub` Vitest project and drops
SUBPROCESS_STUB_TESTS from unit-core's exclude, so its two real
spawners (client-metro.test.ts, harness.test.ts — corpus-replay.test.ts
already left for fuzz-worker in #1994) run un-serialized in the default
forks pool per #1823's own kill criterion. Revert if a timeout-shaped
failure shows up before 20 consecutive CI runs pass clean.

The files stay excluded from the mutation lane (SERIALIZED_TESTS):
that exclusion is about mutant-rerun cost, independent of Vitest
project structure. Updated the comments/docs/scripts that described
the old project by name so none of them assert a project that no
longer exists.


Claude-Session: https://claude.ai/code/session_015YPgKE1xmjdqh7T1q987DA

Co-authored-by: Claude <noreply@anthropic.com>
2026-08-24 20:07:47 +02:00

43 lines
2.1 KiB
TypeScript

import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { defineConfig } from 'vitest/config';
import { readTestScope, threadHostileTestFiles } from './scripts/mutation/test-scope.ts';
import { workspaceSourceAliases } from './scripts/mutation/workspace-aliases.ts';
import { SERIALIZED_TESTS, SETUP_FILES } from './vitest.config.ts';
const repoRoot = path.dirname(fileURLToPath(import.meta.url));
// Workspace-package aliases for the Stryker sandbox (#1490 W0). Stryker copies
// the tree into .stryker-tmp and symlinks node_modules back to the real repo,
// so a `@agent-device/*` specifier resolved through pnpm's link escapes the
// sandbox: mutants written into the sandbox copy never load, and
// `vitest related` finds no tests for a mutated package file. Aliasing each
// EXPORTED specifier to its source file — resolved relative to this config,
// which Stryker copies into the sandbox — keeps resolution inside the mutated
// tree. Entries come from the shared exports-map reader, never a wildcard, so
// this cannot resolve package internals the boundary forbids (R11).
const workspaceAliases = workspaceSourceAliases(repoRoot);
// Test scope for the decision-kernel mutation lane (issue #1415).
//
// `scripts/mutation/run.ts` derives the per-run scope from Vitest's module graph
// (`vitest related` over the mutated files) and hands it over through
// AGENT_DEVICE_MUTATION_TEST_FILES; the fallback is the deterministic unit suite,
// which keeps `pnpm exec stryker run` usable by hand. Excluded either way: the
// real-subprocess-spawn tests (SERIALIZED_TESTS — #1823, only `fuzz-worker` still
// runs them in a serialized Vitest project) and the CLI-capture tests — see
// scripts/mutation/test-scope.ts for why, and why excluding them cannot hide a
// surviving mutant.
const scope = readTestScope();
export default defineConfig({
resolve: {
alias: workspaceAliases,
},
test: {
include: scope ?? ['src/**/*.test.ts', 'packages/*/src/**/*.test.ts'],
exclude: [...SERIALIZED_TESTS, ...threadHostileTestFiles(repoRoot), '**/node_modules/**'],
setupFiles: [...SETUP_FILES],
},
});