test: Use vitest for fastly compute testing (#1828)

* use vitest for fastly compute testing

* reflect reviews and solve problem

* chore: update comment

* run lint:fix

package.json

@@ -13,7 +13,7 @@
     "test": "tsc --noEmit && vitest --run",
     "test:deno": "env NAME=Deno deno test --allow-read --allow-env runtime_tests/deno && deno test --no-lock -c runtime_tests/deno-jsx/deno.precompile.json runtime_tests/deno-jsx && deno test --no-lock -c runtime_tests/deno-jsx/deno.react-jsx.json runtime_tests/deno-jsx",
     "test:bun": "env NAME=Bun bun test --jsx-import-source ../../src/jsx runtime_tests/bun/index.test.tsx",
-    "test:fastly": "jest --config ./runtime_tests/fastly/jest.config.js",
+    "test:fastly": "vitest --run --config ./runtime_tests/fastly/vitest.config.ts",
     "test:lagon": "start-server-and-test \"lagon dev runtime_tests/lagon/index.ts -e runtime_tests/lagon/.env.lagon\" http://127.0.0.1:1234 \"yarn vitest --run runtime_tests/lagon/index.test.ts --config runtime_tests/lagon/vitest.config.ts\"",
     "test:node": "env NAME=Node vitest --run --config ./runtime_tests/node/vitest.config.ts",
     "test:wrangler": "vitest --run --config ./runtime_tests/wrangler/vitest.config.ts",
@@ -446,7 +446,6 @@
     "@hono/node-server": "^1.3.3",
     "@types/crypto-js": "^4.1.1",
     "@types/glob": "^8.0.0",
-    "@types/jest": "^29.4.0",
     "@types/jsdom": "^21.1.4",
     "@types/node": "^20.8.2",
     "@types/node-fetch": "^2.6.2",
@@ -458,8 +457,6 @@
     "esbuild": "^0.15.12",
     "eslint": "^8.55.0",
     "form-data": "^4.0.0",
-    "jest": "^29.6.4",
-    "jest-preset-fastly-js-compute": "^1.3.0",
     "jsdom": "^22.1.0",
     "msw": "^1.0.0",
     "node-fetch": "2",
@@ -472,6 +469,7 @@
     "ts-jest": "^29.1.1",
     "tsx": "^3.11.0",
     "typescript": "^5.3.3",
+    "vite-plugin-fastly-js-compute": "^0.4.2",
     "vitest": "^0.34.3",
     "wrangler": "3.17.1",
     "zod": "^3.20.2"

runtime_tests/fastly/index.test.ts

@@ -88,7 +88,11 @@ describe('Basic Auth Middleware with `hashFunction`', () => {
 describe('JWT Auth Middleware does not work', () => {
   const app = new Hono()
 
-  it('Should throw error', () => {
+  // Since nodejs 20 or later, global WebCrypto object becomes stable (experimental on nodejs 18)
+  // but WebCrypto does not have compatibility with Fastly Compute runtime (lacking some objects/methods in Fastly)
+  // so following test should run only be polyfill-ed via vite-plugin-fastly-js-compute plugin.
+  // To confirm polyfill-ed or not, check __fastlyComputeNodeDefaultCrypto field is true.
+  it.runIf(!globalThis.__fastlyComputeNodeDefaultCrypto)('Should throw error', () => {
     expect(() => {
       app.use('/jwt/*', jwt({ secret: 'secret' }))
     }).toThrow(/`crypto.subtle.importKey` is undefined/)

runtime_tests/fastly/jest.config.js

@@ -1,8 +0,0 @@
-export default {
-  testMatch: ['**/runtime_tests/fastly/**/*.+(ts|tsx|js)'],
-  transform: {
-    '^.+\\.(ts|tsx)$': 'ts-jest',
-  },
-  preset: 'jest-preset-fastly-js-compute/typescript/esm',
-  testPathIgnorePatterns: ['jest.config.js'],
-}

runtime_tests/fastly/vitest.config.ts

@@ -0,0 +1,12 @@
+/// <reference types="vitest" />
+import fastlyCompute from 'vite-plugin-fastly-js-compute'
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  plugins: [fastlyCompute()],
+  test: {
+    globals: true,
+    include: ['**/runtime_tests/fastly/**/(*.)+(test).+(ts|tsx)'],
+    exclude: ['**/runtime_tests/fastly/vitest.config.ts'],
+  },
+})