tsconfig.tests.json

{
  // Test/spec project (PP-4k76). Referenced by the root tsconfig.json so
  // tsserver assigns test files to THIS project — giving them the path aliases
  // (via tsconfig.base.json), node types, vitest globals, and jest-dom matchers
  // they need — instead of an inferred project that has none.
  //
  // `composite: true` makes it referenceable from the root. The
  // `references: [tsconfig.app.json]` is load-bearing: test files import
  // production source, and without the reference a composite project would
  // demand every such import be listed in its own `include` (TS6307).
  // Referencing the app project lets those imports resolve to their real owner.
  //
  // `noEmit` is NOT set here (a referenced composite project may not disable
  // emit — TS6310); emit is suppressed by the `--noEmit` flag in the
  // typecheck:tests script. No output is ever produced.
  "extends": "./tsconfig.base.json",
  "compilerOptions": {
    "composite": true,
    "strict": true,
    "types": ["vitest/globals", "@testing-library/jest-dom"],
    // See the matching note in tsconfig.app.json — including the warning that
    // this is not a no-op. Here the emit-over-input file is
    // eslint-rules/no-restricted-disable-directives.mjs, pulled in by
    // src/test/lint/*.test.ts. Needed only by oxlint's tsgolint engine.
    // Gitignored. (PP-4zcj.)
    "outDir": "./.oxlint-tsbuild/tests"
  },
  "references": [{ "path": "./tsconfig.app.json" }],
  "include": [
    "src/**/*.test.ts",
    "src/**/*.test.tsx",
    "src/**/*.spec.ts",
    "src/**/*.spec.tsx",
    "src/test/**/*",
    "scripts/**/*.test.ts",
    "vitest.config.ts"
  ]
}