Allow jest to run with use server directive

packages/next/src/build/swc/options.ts

@@ -178,16 +178,16 @@ function getBaseSWCOptions({
         development
       ),
     }),
-    serverComponents: hasServerComponents
-      ? { isServer: !!isServerLayer }
-      : undefined,
-    serverActions: hasServerComponents
-      ? {
-          // TODO-APP: When Server Actions is stable, we need to remove this flag.
-          enabled: !!isServerActionsEnabled,
-          isServer: !!isServerLayer,
-        }
-      : undefined,
+    serverComponents:
+      hasServerComponents && !jest ? { isServer: !!isServerLayer } : undefined,
+    serverActions:
+      hasServerComponents && !jest
+        ? {
+            // TODO-APP: When Server Actions is stable, we need to remove this flag.
+            enabled: !!isServerActionsEnabled,
+            isServer: !!isServerLayer,
+          }
+        : undefined,
     bundleTarget,
   }
 }

test/production/jest/rsc/app/server-action/action.js

@@ -0,0 +1,5 @@
+'use server'
+
+export async function action(data) {
+  console.log(data)
+}

test/production/jest/rsc/app/server-action/page.jsx

@@ -0,0 +1,9 @@
+import { action } from './action'
+
+export default function Page() {
+  return (
+    <button data-testid="log" onClick={action}>
+      log
+    </button>
+  )
+}

test/production/jest/rsc/app/server-action/page.test.jsx

@@ -0,0 +1,10 @@
+/**
+ * @jest-environment jsdom
+ */
+import { render, screen } from '@testing-library/react'
+import Page from './page'
+
+it('works with client-only code', () => {
+  render(<Page />)
+  expect(screen.getByTestId('log')).toHaveTextContent('log')
+})