feat(nuxi)!: setup nuxt globally with nuxt test (#4578)

examples/advanced/testing/package.json

@@ -5,7 +5,7 @@
     "build": "nuxi build",
     "dev": "nuxi dev",
     "start": "nuxi preview",
-    "test": "vitest run"
+    "test": "nuxi test"
   },
   "devDependencies": {
     "@nuxt/test-utils": "^3.0.0-rc.13",

examples/advanced/testing/tests/basic.test.ts

@@ -1,13 +1,7 @@
-import { fileURLToPath } from 'node:url'
 import { describe, expect, it } from 'vitest'
-import { setup, $fetch, isDev } from '@nuxt/test-utils'
-
-describe('example', async () => {
-  await setup({
-    rootDir: fileURLToPath(new URL('..', import.meta.url)),
-    server: true
-  })
+import { $fetch, isDev } from '@nuxt/test-utils'
 
+describe('example', () => {
   it('Renders Hello Nuxt', async () => {
     expect(await $fetch('/')).toMatch('Hello Nuxt!')
   })

packages/nuxi/src/commands/test.ts

@@ -33,7 +33,9 @@ async function importTestUtils (): Promise<typeof import('@nuxt/test-utils')> {
         throw new Error('Invalid version of `@nuxt/test-utils` is installed!')
       }
       return exports
-    } catch (_err) { err = _err }
+    } catch (_err) {
+      err = _err
+    }
   }
   console.error(err)
   throw new Error('`@nuxt/test-utils-edge` seems missing. Run `npm i -D @nuxt/test-utils-edge` or `yarn add -D @nuxt/test-utils-edge` to install.')

packages/test-utils/build.config.ts

@@ -3,7 +3,8 @@ import { defineBuildConfig } from 'unbuild'
 export default defineBuildConfig({
   declaration: true,
   entries: [
-    'src/index'
+    'src/index',
+    { input: 'src/runtime/', outDir: 'dist/runtime', format: 'esm' }
   ],
   externals: [
     'vitest',

packages/test-utils/package.json

@@ -20,7 +20,8 @@
     "execa": "^6.1.0",
     "get-port-please": "^2.6.1",
     "jiti": "^1.16.0",
-    "ohmyfetch": "^0.4.21"
+    "ohmyfetch": "^0.4.21",
+    "pathe": "^0.3.8"
   },
   "devDependencies": {
     "playwright": "^1.27.1",

packages/test-utils/src/context.ts

@@ -28,6 +28,7 @@ export function createTestContext (options: Partial<TestOptions>): TestContext {
 }
 
 export function useTestContext (): TestContext {
+  recoverContextFromEnv()
   if (!currentContext) {
     throw new Error('No context is available. (Forgot calling setup or createContext?)')
   }
@@ -45,3 +46,14 @@ export function isDev () {
   const ctx = useTestContext()
   return ctx.options.dev
 }
+
+export function recoverContextFromEnv () {
+  if (!currentContext && process.env.NUXT_TEST_CONTEXT) {
+    setTestContext(JSON.parse(process.env.NUXT_TEST_CONTEXT || '{}'))
+  }
+}
+
+export function exposeContextToEnv () {
+  const { options, browser, url } = currentContext!
+  process.env.NUXT_TEST_CONTEXT = JSON.stringify({ options, browser, url })
+}

packages/test-utils/src/dirs.ts

@@ -0,0 +1,5 @@
+import { fileURLToPath } from 'node:url'
+import { dirname, resolve } from 'pathe'
+
+export const distDir = dirname(fileURLToPath(import.meta.url))
+export const pkgDir = resolve(distDir, '..')

packages/test-utils/src/index.ts

@@ -5,3 +5,4 @@ export * from './nuxt'
 export * from './server'
 export * from './setup'
 export * from './run'
+export * from './types'

packages/test-utils/src/run.ts

@@ -1,12 +1,17 @@
+import { resolve } from 'pathe'
+import { distDir } from './dirs'
+
 export interface RunTestOptions {
   rootDir: string,
   dev?: boolean,
   watch?: boolean
   runner?: 'vitest'
+  globalSetup?: boolean
 }
 
 const RunTestDefaults: Partial<RunTestOptions> = {
-  runner: 'vitest'
+  runner: 'vitest',
+  globalSetup: true
 }
 
 export async function runTests (opts: RunTestOptions) {
@@ -21,6 +26,9 @@ export async function runTests (opts: RunTestOptions) {
     process.env.NUXT_TEST_DEV = 'true'
   }
 
+  // Consumed by recoverContextFromEnv()
+  process.env.NUXT_TEST_OPTIONS = JSON.stringify(opts)
+
   const { startVitest } = await import('vitest/node')
   const succeeded = await startVitest(
     'test',
@@ -37,6 +45,20 @@ export async function runTests (opts: RunTestOptions) {
     {
       esbuild: {
         tsconfigRaw: '{}'
+      },
+      test: {
+        dir: opts.rootDir,
+        deps: {
+          inline: [
+            distDir,
+            '@nuxt/test-utils',
+            '@nuxt/test-utils-edge'
+          ]
+        },
+        globals: true,
+        globalSetup: [
+          ...opts.globalSetup ? [resolve(distDir, './runtime/global-setup')] : []
+        ]
       }
     }
   )

packages/test-utils/src/runtime/global-setup.ts

@@ -0,0 +1,12 @@
+import { createTest, exposeContextToEnv } from '@nuxt/test-utils'
+
+const hooks = createTest(JSON.parse(process.env.NUXT_TEST_OPTIONS || '{}'))
+
+export const setup = async () => {
+  await hooks.setup()
+  exposeContextToEnv()
+}
+
+export const teardown = async () => {
+  await hooks.afterAll()
+}

packages/test-utils/src/setup/index.ts

@@ -67,7 +67,7 @@ export function createTest (options: Partial<TestOptions>): TestHooks {
   }
 }
 
-export async function setup (options: Partial<TestOptions>) {
+export async function setup (options: Partial<TestOptions> = {}) {
   const hooks = createTest(options)
 
   const setupFn = setupMaps[hooks.ctx.options.runner]