Add test

devjiwonchoi · devjiwonchoi · commit 5a5069645163 · 2025-10-08T11:33:54.000+02:00
diff --git a/test/e2e/app-dir/deprecation-warning-runtime-config/app/layout.tsx b/test/e2e/app-dir/deprecation-warning-runtime-config/app/layout.tsx
@@ -0,0 +1,8 @@
+import { ReactNode } from 'react'
+export default function Root({ children }: { children: ReactNode }) {
+  return (
+    <html>
+      <body>{children}</body>
+    </html>
+  )
+}
diff --git a/test/e2e/app-dir/deprecation-warning-runtime-config/app/page.tsx b/test/e2e/app-dir/deprecation-warning-runtime-config/app/page.tsx
@@ -0,0 +1,6 @@
+import getConfig from 'next/config'
+
+export default function Page() {
+  getConfig()
+  return <p>hello world</p>
+}
diff --git a/test/e2e/app-dir/deprecation-warning-runtime-config/deprecation-warning-runtime-config.test.ts b/test/e2e/app-dir/deprecation-warning-runtime-config/deprecation-warning-runtime-config.test.ts
@@ -0,0 +1,16 @@
+import { nextTestSetup } from 'e2e-utils'
+
+describe('deprecation-warning-runtime-config', () => {
+  const { next } = nextTestSetup({
+    files: __dirname,
+  })
+
+  it('should warn when imported "next/config" module', async () => {
+    // Navigate to "/" for dev server to execute the code
+    await next.browser('/')
+
+    expect(next.cliOutput).toContain(
+      'Runtime config is deprecated and will be removed in Next.js 16. Please remove the usage of "next/config" from your project.'
+    )
+  })
+})
diff --git a/test/e2e/app-dir/deprecation-warning-runtime-config/next.config.js b/test/e2e/app-dir/deprecation-warning-runtime-config/next.config.js
@@ -0,0 +1,13 @@
+/**
+ * @type {import('next').NextConfig}
+ */
+const nextConfig = {
+  publicRuntimeConfig: {
+    foo: 'bar',
+  },
+  serverRuntimeConfig: {
+    foo: 'bar',
+  },
+}
+
+module.exports = nextConfig
diff --git a/test/e2e/deprecation-warnings/deprecation-warnings.test.ts b/test/e2e/deprecation-warnings/deprecation-warnings.test.ts
@@ -32,6 +32,14 @@ describe('deprecation-warnings', () => {
       // Should warn about experimental.instrumentationHook
       expect(logs).toContain('experimental.instrumentationHook')
       expect(logs).toContain('no longer needed')
+
+      // Should warn about publicRuntimeConfig
+      expect(logs).toContain('publicRuntimeConfig')
+      expect(logs).toContain('will be removed in Next.js 16')
+
+      // Should warn about serverRuntimeConfig
+      expect(logs).toContain('serverRuntimeConfig')
+      expect(logs).toContain('will be removed in Next.js 16')
     })
   })
 })
diff --git a/test/e2e/deprecation-warnings/fixtures/with-deprecated-config/next.config.js b/test/e2e/deprecation-warnings/fixtures/with-deprecated-config/next.config.js
@@ -1,6 +1,13 @@
+/** @type {import('next').NextConfig} */
 module.exports = {
   // Explicitly configure deprecated options
   experimental: {
     instrumentationHook: true,
   },
+  publicRuntimeConfig: {
+    foo: 'bar',
+  },
+  serverRuntimeConfig: {
+    foo: 'bar',
+  },
 }
