add test for config compat

wbinnssmith · wbinnssmith · commit ac454e97e22f · 2025-04-07T16:40:27.000-07:00
diff --git a/test/e2e/turbopack-turbo-config-compatibility/app/layout.js b/test/e2e/turbopack-turbo-config-compatibility/app/layout.js
@@ -0,0 +1,7 @@
+export default function RootLayout({ children }) {
+  return (
+    <html lang="en">
+      <body>{children}</body>
+    </html>
+  )
+}
diff --git a/test/e2e/turbopack-turbo-config-compatibility/app/page.js b/test/e2e/turbopack-turbo-config-compatibility/app/page.js
@@ -0,0 +1,5 @@
+import foo from 'foo'
+
+export default function Page() {
+  return <div id="result">Hello {foo}</div>
+}
diff --git a/test/e2e/turbopack-turbo-config-compatibility/index.test.ts b/test/e2e/turbopack-turbo-config-compatibility/index.test.ts
@@ -0,0 +1,48 @@
+import { nextTestSetup } from 'e2e-utils'
+
+describe('turbopack-turbo-config-compatibility', () => {
+  describe('including both turbopack and deprecated experimental turbo config', () => {
+    const { next, isTurbopack } = nextTestSetup({
+      files: __dirname,
+    })
+
+    if (!isTurbopack) {
+      return
+    }
+
+    it('prefers turbopack config over deprecated experimental turbo config', async () => {
+      const $ = await next.render$('/')
+      expect($('#result').text()).toEqual('Hello turbopack')
+    })
+  })
+
+  describe('only including deprecated experimental turbo config', () => {
+    const { next, isTurbopack } = nextTestSetup({
+      files: __dirname,
+    })
+
+    if (!isTurbopack) {
+      return
+    }
+
+    beforeAll(async () => {
+      await next.patchFile(
+        'next.config.js',
+        `module.exports = {
+        experimental: {
+          turbo: {
+            resolveAlias: {
+              foo: './turbo.js',
+            },
+          },
+        },
+      }`
+      )
+    })
+
+    it('still uses the deprecated experimental turbo config', async () => {
+      const $ = await next.render$('/')
+      expect($('#result').text()).toEqual('Hello turbo')
+    })
+  })
+})
diff --git a/test/e2e/turbopack-turbo-config-compatibility/next.config.js b/test/e2e/turbopack-turbo-config-compatibility/next.config.js
@@ -0,0 +1,14 @@
+module.exports = {
+  turbopack: {
+    resolveAlias: {
+      foo: './turbopack.js',
+    },
+  },
+  experimental: {
+    turbo: {
+      resolveAlias: {
+        foo: './turbo.js',
+      },
+    },
+  },
+}
diff --git a/test/e2e/turbopack-turbo-config-compatibility/turbo.js b/test/e2e/turbopack-turbo-config-compatibility/turbo.js
@@ -0,0 +1 @@
+export default 'turbo'
diff --git a/test/e2e/turbopack-turbo-config-compatibility/turbopack.js b/test/e2e/turbopack-turbo-config-compatibility/turbopack.js
@@ -0,0 +1 @@
+export default 'turbopack'
