FE-1862: Upgrade to Vitest 5

.yarn/patches/@effect-vitest-npm-0.29.0-1c8cf3c306.patch

@@ -1,58 +1,73 @@
 diff --git a/dist/cjs/internal/internal.js b/dist/cjs/internal/internal.js
-index dee6eec6cd0646708773eb9e89d4e835858b3f5c..b9ce97e9b481980ff5a9092bf09c8d3179fed495 100644
+index dee6eec..14424ac 100644
 --- a/dist/cjs/internal/internal.js
 +++ b/dist/cjs/internal/internal.js
-@@ -28,7 +28,9 @@ const defaultApi = /*#__PURE__*/Object.assign(V.it, {
+@@ -28,7 +28,11 @@ const defaultApi = /*#__PURE__*/Object.assign(V.it, {
  });
  const runPromise = ctx => effect => Effect.gen(function* () {
    const exitFiber = yield* Effect.fork(Effect.exit(effect));
 -  ctx?.onTestFinished(() => Fiber.interrupt(exitFiber).pipe(Effect.asVoid, Effect.runPromise));
-+  // Vitest 4 moved onTestFinished off the test context. Keep Effect 3's
-+  // stable @effect/vitest usable until https://github.com/Effect-TS/effect/pull/5980 is released.
-+  V.onTestFinished(() => Fiber.interrupt(exitFiber).pipe(Effect.asVoid, Effect.runPromise));
++  // Register on the test's own context, which concurrent tests do not share.
++  // Vitest 4.0 contexts had no onTestFinished, so use the global hook there.
++  if (ctx) {
++    (ctx.onTestFinished ?? V.onTestFinished)(() => Fiber.interrupt(exitFiber).pipe(Effect.asVoid, Effect.runPromise));
++  }
    const exit = yield* Fiber.join(exitFiber);
    if (Exit.isSuccess(exit)) {
      return () => exit.value;
 diff --git a/dist/esm/internal/internal.js b/dist/esm/internal/internal.js
-index adb6b213294cbbc1559f7a283b4a84df41d8342e..a04cef4d46c499aac08518abf0a99759ce800039 100644
+index adb6b21..379aee7 100644
 --- a/dist/esm/internal/internal.js
 +++ b/dist/esm/internal/internal.js
-@@ -21,7 +21,9 @@ const defaultApi = /*#__PURE__*/Object.assign(V.it, {
+@@ -21,7 +21,11 @@ const defaultApi = /*#__PURE__*/Object.assign(V.it, {
  });
  const runPromise = ctx => effect => Effect.gen(function* () {
    const exitFiber = yield* Effect.fork(Effect.exit(effect));
 -  ctx?.onTestFinished(() => Fiber.interrupt(exitFiber).pipe(Effect.asVoid, Effect.runPromise));
-+  // Vitest 4 moved onTestFinished off the test context. Keep Effect 3's
-+  // stable @effect/vitest usable until https://github.com/Effect-TS/effect/pull/5980 is released.
-+  V.onTestFinished(() => Fiber.interrupt(exitFiber).pipe(Effect.asVoid, Effect.runPromise));
++  // Register on the test's own context, which concurrent tests do not share.
++  // Vitest 4.0 contexts had no onTestFinished, so use the global hook there.
++  if (ctx) {
++    (ctx.onTestFinished ?? V.onTestFinished)(() => Fiber.interrupt(exitFiber).pipe(Effect.asVoid, Effect.runPromise));
++  }
    const exit = yield* Fiber.join(exitFiber);
    if (Exit.isSuccess(exit)) {
      return () => exit.value;
 diff --git a/package.json b/package.json
-index 1ceac68f8e5cfed5d014c4066414c4f8eec67a69..3c5cac8abdae6087e927fab2669b736c4a0be5c4 100644
+index 1ceac68..ac43401 100644
 --- a/package.json
 +++ b/package.json
 @@ -11,7 +11,7 @@
    "sideEffects": [],
    "homepage": "https://effect.website",
    "peerDependencies": {
 -    "vitest": "^3.2.0",
-+    "vitest": "^3.2.0 || ^4.0.0",
++    "vitest": "^3.2.0 || ^4.0.0 || ^5.0.0",
      "effect": "^3.21.0"
    },
    "publishConfig": {
 diff --git a/src/internal/internal.ts b/src/internal/internal.ts
-index bd11019b8ad51bd49cc3015f8c69aac04ad18822..1d8a04e1ae3d195d75553fb3944efdd9720f64ca 100644
+index bd11019..9313f73 100644
 --- a/src/internal/internal.ts
 +++ b/src/internal/internal.ts
-@@ -29,7 +29,9 @@ const runPromise = (ctx?: Vitest.TestContext) => <E, A>(effect: Effect.Effect<A,
+@@ -29,12 +29,16 @@ const runPromise = (ctx?: Vitest.TestContext) => <E, A>(effect: Effect.Effect<A,
    Effect.gen(function*() {
      const exitFiber = yield* Effect.fork(Effect.exit(effect))
 
 -    ctx?.onTestFinished(() =>
-+    // Vitest 4 moved onTestFinished off the test context. Keep Effect 3's
-+    // stable @effect/vitest usable until https://github.com/Effect-TS/effect/pull/5980 is released.
-+    V.onTestFinished(() =>
-       Fiber.interrupt(exitFiber).pipe(
-         Effect.asVoid,
-         Effect.runPromise
+-      Fiber.interrupt(exitFiber).pipe(
+-        Effect.asVoid,
+-        Effect.runPromise
++    // Register on the test's own context, which concurrent tests do not share.
++    // Vitest 4.0 contexts had no onTestFinished, so use the global hook there.
++    if (ctx) {
++      ;(ctx.onTestFinished ?? V.onTestFinished)(() =>
++        Fiber.interrupt(exitFiber).pipe(
++          Effect.asVoid,
++          Effect.runPromise
++        )
+       )
+-    )
++    }
+
+     const exit = yield* Fiber.join(exitFiber)
+     if (Exit.isSuccess(exit)) {

.yarnrc.yml

@@ -50,7 +50,10 @@ catalog:
   typescript: "7.0.2"
   "@typescript/typescript6": "6.0.2"
   vite: "8.3.4"
-  vitest: "4.1.11"
+  vitest: "5.0.2"
+  "@vitest/browser-playwright": "5.0.2"
+  "@vitest/coverage-istanbul": "5.0.2"
+  "@fast-check/vitest": "0.5.0"
   "@tsconfig/bases": "1.0.28"
   "@types/node": "22.18.13"
 

apps/brunch-agent/src/provider-registration.test.ts

@@ -52,29 +52,36 @@ vi.mock(
     };
   },
 );
+let registeredProviders: Parameters<typeof setProvider>[0][] = [];
+let instrumentations: Parameters<typeof instrument>[0][] = [];
+let nativeOpenRouterProvider: Provider | undefined;
+
 beforeAll(async () => {
   await import("./app");
+  registeredProviders = vi
+    .mocked(setProvider)
+    .mock.calls.map(([provider]) => provider);
+  instrumentations = vi
+    .mocked(instrument)
+    .mock.calls.map(([instrumentation]) => instrumentation);
+  const { openrouterProvider } =
+    await import("@earendil-works/pi-ai/providers/openrouter");
+  const result = vi.mocked(openrouterProvider).mock.results[0];
+  nativeOpenRouterProvider =
+    result?.type === "return" ? result.value : undefined;
 });
 
 test("app registration admits the Anthropic, OpenAI and OpenRouter providers", () => {
-  const ids = vi
-    .mocked(setProvider)
-    .mock.calls.map(([entry]) => entry.id)
-    .sort();
+  const ids = registeredProviders.map((provider) => provider.id).sort();
   expect(ids).toEqual(["anthropic", "openai", "openrouter"]);
 });
 
 test("app registration admits native OpenRouter with GPT-6.1 Sol and its API-key auth", async () => {
-  const { openrouterProvider } =
-    await import("@earendil-works/pi-ai/providers/openrouter");
-  const native = vi.mocked(openrouterProvider).mock.results[0]?.value as
-    | Provider
-    | undefined;
+  const native = nativeOpenRouterProvider;
   expect(native).toBeDefined();
-  const provider = vi
-    .mocked(setProvider)
-    .mock.calls.map(([entry]) => entry)
-    .find((entry) => entry.id === "openrouter")!;
+  const provider = registeredProviders.find(
+    (provider) => provider.id === "openrouter",
+  )!;
   expect(provider.auth).toBe(native!.auth);
   // The catalogue extension keeps native streams, so a different stream is the admission wrapper.
   expect(Reflect.get(provider, "streamSimple")).not.toBe(
@@ -108,16 +115,15 @@ const drain = async (stream: ReturnType<Provider["streamSimple"]>) => {
 };
 
 test("app registration scopes admission to the Petrinaut agent's execution, isolating concurrent agents and delegated tasks", async () => {
-  const registration = vi
-    .mocked(instrument)
-    .mock.calls.find(
-      ([entry]) => entry.key === Symbol.for("brunch.buffered-tool-admission"),
-    )?.[0];
+  const registration = instrumentations.find(
+    (instrumentation) =>
+      instrumentation.key === Symbol.for("brunch.buffered-tool-admission"),
+  );
   expect(registration).toBeDefined();
-  const provider = vi
-    .mocked(setProvider)
-    .mock.calls.map(([entry]) => entry)
-    .find((entry) => entry.id === "anthropic")!;
+  const provider = registeredProviders.find(
+    (provider) => provider.id === "anthropic",
+  )!;
+
   expect(provider.auth).toBe(faux.provider.auth);
   expect(provider.getModels()).toEqual(faux.provider.getModels());
   const model = provider.getModels()[0]!;

apps/hash-ai-worker-ts/package.json

@@ -112,7 +112,7 @@
     "@types/node": "catalog:",
     "@types/papaparse": "5.3.16",
     "@types/sanitize-html": "2.16.0",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "rimraf": "6.1.3",
     "ts-json-schema-generator": "1.5.1",

apps/hash-api/package.json

@@ -131,10 +131,11 @@
     "@types/mime-types": "2.1.4",
     "@types/node": "catalog:",
     "@types/sanitize-html": "2.16.0",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "rimraf": "6.1.3",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:",
     "wait-on": "9.0.1"
   }

apps/hash-frontend/package.json

@@ -193,6 +193,7 @@
     "rimraf": "6.1.3",
     "sass": "1.93.2",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:",
     "wait-on": "9.0.1",
     "webpack": "5.107.2"

apps/petrinaut-website/package.json

@@ -40,7 +40,7 @@
     "zod": "4.4.3"
   },
   "devDependencies": {
-    "@fast-check/vitest": "0.4.1",
+    "@fast-check/vitest": "catalog:",
     "@local/tsconfig": "workspace:*",
     "@tanstack/router-generator": "1.167.32",
     "@tanstack/router-plugin": "1.168.34",

libs/@blockprotocol/type-system/typescript/package.json

@@ -63,14 +63,15 @@
     "@types/node": "catalog:",
     "@types/react": "19.2.14",
     "@types/semver": "7.7.1",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "react": "19.2.6",
     "rimraf": "6.1.3",
     "rolldown": "1.2.6",
     "rolldown-plugin-dts": "0.28.3",
     "tslib": "2.8.1",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vite-plugin-wasm-pack": "0.1.12",
     "vitest": "catalog:"
   }

libs/@hashintel/ds-components/package.json

@@ -106,7 +106,7 @@
     "@types/react": "19.2.14",
     "@types/react-dom": "19.2.3",
     "@vitejs/plugin-react": "6.1.1",
-    "@vitest/browser-playwright": "4.1.11",
+    "@vitest/browser-playwright": "catalog:",
     "case-anything": "3.1.0",
     "esbuild-plugin-svgr": "3.1.1",
     "eslint": "9.39.4",

libs/@local/graph/sdk/typescript/package.json

@@ -38,10 +38,11 @@
     "@local/eslint": "workspace:*",
     "@local/tsconfig": "workspace:*",
     "@tsconfig/bases": "catalog:",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "rimraf": "6.1.3",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }

libs/@local/harpc/client/typescript/package.json

@@ -50,10 +50,11 @@
     "@local/tsconfig": "workspace:*",
     "@tsconfig/bases": "catalog:",
     "@types/node": "catalog:",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "rimraf": "6.1.3",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }

libs/@local/harpc/client/typescript/tests/wire-protocol/codec.bench.ts

@@ -1,5 +1,5 @@
 import { Either, FastCheck, pipe } from "effect";
-import { bench, describe } from "vitest";
+import { describe, test } from "vitest";
 
 import { MutableBuffer, MutableBytes } from "../../src/binary/index.js";
 import { Request } from "../../src/wire-protocol/models/request/index.js";
@@ -35,29 +35,35 @@ const responseEncoded = pipe(
 );
 
 describe("request", () => {
-  bench("encode", () => {
-    Request.encode(MutableBuffer.makeWrite(), request[0]!).pipe(
-      Either.getOrThrow,
-    );
-  });
+  // eslint-disable-next-line vitest/expect-expect
+  test("codec", async ({ bench }) => {
+    await bench("encode", () => {
+      Request.encode(MutableBuffer.makeWrite(), request[0]!).pipe(
+        Either.getOrThrow,
+      );
+    }).run();
 
-  bench("decode", () => {
-    const buffer = MutableBuffer.makeRead(MutableBytes.from(requestEncoded));
+    await bench("decode", () => {
+      const buffer = MutableBuffer.makeRead(MutableBytes.from(requestEncoded));
 
-    Request.decode(buffer);
+      Request.decode(buffer);
+    }).run();
   });
 });
 
 describe("response", () => {
-  bench("encode", () => {
-    Response.encode(MutableBuffer.makeWrite(), response[0]!).pipe(
-      Either.getOrThrow,
-    );
-  });
+  // eslint-disable-next-line vitest/expect-expect
+  test("codec", async ({ bench }) => {
+    await bench("encode", () => {
+      Response.encode(MutableBuffer.makeWrite(), response[0]!).pipe(
+        Either.getOrThrow,
+      );
+    }).run();
 
-  bench("decode", () => {
-    const buffer = MutableBuffer.makeRead(MutableBytes.from(responseEncoded));
+    await bench("decode", () => {
+      const buffer = MutableBuffer.makeRead(MutableBytes.from(responseEncoded));
 
-    Response.decode(buffer);
+      Response.decode(buffer);
+    }).run();
   });
 });

libs/@local/hash-backend-utils/package.json

@@ -83,10 +83,11 @@
     "@types/mime-types": "2.1.4",
     "@types/node": "catalog:",
     "@types/wait-on": "5.3.4",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "rimraf": "6.1.3",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }

libs/@local/hash-isomorphic-utils/package.json

@@ -72,13 +72,14 @@
     "@types/lodash-es": "4.17.12",
     "@types/node": "catalog:",
     "@types/pluralize": "0.0.33",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "graphql": "16.11.0",
     "next": "16.4.1",
     "react": "19.2.6",
     "rimraf": "6.1.3",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }

libs/@local/petrinaut-arch-docs/package.json

@@ -36,6 +36,7 @@
     "oxlint": "1.86.0",
     "tsx": "catalog:",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }

libs/@local/petrinaut-optimizer-client/package.json

@@ -30,6 +30,7 @@
     "oxfmt": "0.71.0",
     "rimraf": "6.1.3",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }

libs/@local/repo-chores/node/package.json

@@ -44,6 +44,7 @@
     "@types/node": "catalog:",
     "eslint": "9.39.4",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }

tests/hash-backend-integration/package.json

@@ -39,10 +39,11 @@
     "@local/tsconfig": "workspace:*",
     "@tsconfig/bases": "catalog:",
     "@types/node": "catalog:",
-    "@vitest/coverage-istanbul": "4.1.10",
+    "@vitest/coverage-istanbul": "catalog:",
     "eslint": "9.39.4",
     "rimraf": "6.1.3",
     "typescript": "catalog:",
+    "vite": "catalog:",
     "vitest": "catalog:"
   }
 }