feat: Add more features and tests to MF2 test app

.github/workflows/e2e.yml

@@ -129,6 +129,7 @@ jobs:
           arch: x86_64
           profile: pixel_7
           avd-name: e2e
+          disable-animations: false
           working-directory: apps/tester-federation-v2
           script: |
             adb shell settings put global hide_error_dialogs 1

agent_context/README.md

@@ -9,3 +9,4 @@ works, and is kept in sync with the implementation as it evolves.
 | Folder | Topic |
 | --- | --- |
 | [rspackv2-jul2026](./rspackv2-jul2026/design.md) | Dual Rspack 1.x/2.x support |
+| [e2e-oct2026](./e2e-oct2026/design.md) | e2e tests on an emulator, on CI |

apps/tester-federation-v2/babel.config.js

@@ -1,4 +1,18 @@
 module.exports = {
   presets: ['module:@react-native/babel-preset'],
+  plugins: ['react-native-worklets/plugin'],
   comments: true,
+  overrides: [
+    {
+      // Regex instead of a relative string: babel resolves strings against the
+      // launch cwd, and the rspack CLI launches from the repo root.
+      test: /[\\/]src[\\/]host[\\/]/,
+      plugins: [
+        [
+          '@babel/plugin-transform-react-jsx',
+          { runtime: 'automatic', importSource: 'nativewind' },
+        ],
+      ],
+    },
+  ],
 };

apps/tester-federation-v2/configs/hostAssetRules.mts

@@ -0,0 +1,44 @@
+import path from 'node:path';
+import * as Repack from '@callstack/repack';
+
+const BITMAP_EXTENSIONS = Repack.getAssetExtensionsRegExp(
+  Repack.ASSET_EXTENSIONS.filter((ext) => ext !== 'svg')
+);
+
+export function buildHostAssetRules(context: string) {
+  const localAssets = path.join(context, 'src/host/assets/localAssets');
+  const inlineAssets = path.join(context, 'src/host/assets/inlineAssets');
+
+  return [
+    {
+      test: BITMAP_EXTENSIONS,
+      exclude: [localAssets, inlineAssets],
+      use: {
+        loader: '@callstack/repack/assets-loader',
+        options: { inline: true, maxInlineSize: 90 * 1024 },
+      },
+    },
+    {
+      test: /\.svg$/,
+      use: [
+        {
+          loader: '@svgr/webpack',
+          options: { native: true, dimensions: false },
+        },
+      ],
+    },
+    {
+      test: BITMAP_EXTENSIONS,
+      include: [localAssets],
+      use: '@callstack/repack/assets-loader',
+    },
+    {
+      test: BITMAP_EXTENSIONS,
+      include: [inlineAssets],
+      use: {
+        loader: '@callstack/repack/assets-loader',
+        options: { inline: true },
+      },
+    },
+  ];
+}

apps/tester-federation-v2/configs/rspack.host-app.mts

@@ -1,6 +1,9 @@
 import * as Repack from '@callstack/repack';
+import { NativeWindPlugin } from '@callstack/repack-plugin-nativewind';
+import { ReanimatedPlugin } from '@callstack/repack-plugin-reanimated';
 import rspack from '@rspack/core';
 
+import { buildHostAssetRules } from './hostAssetRules.mts';
 import { buildSharedSingletons } from './sharedSingletons.mts';
 
 export default Repack.defineRspackConfig((env) => {
@@ -28,15 +31,19 @@ export default Repack.defineRspackConfig((env) => {
           },
           type: 'javascript/auto',
         },
-        ...Repack.getAssetTransformRules({
-          inline: true,
-          maxInlineSize: 90 * 1024,
-        }),
+        ...buildHostAssetRules(context!),
       ],
     },
     plugins: [
+      new NativeWindPlugin({
+        cssInteropOptions: { inlineRem: 16 },
+      }),
       new Repack.RepackPlugin({
         extraChunks: [
+          {
+            include: /^host-async-local$/,
+            type: 'local',
+          },
           {
             include: /.*/,
             type: 'remote',
@@ -62,6 +69,7 @@ export default Repack.defineRspackConfig((env) => {
           process.env.WITH_PRELOAD === 'true' ||
           process.env.WITH_PRELOAD === '1',
       }),
+      new ReanimatedPlugin({ unstable_disableTransform: true }),
     ],
   };
 });

apps/tester-federation-v2/configs/webpack.host-app.mts

@@ -1,7 +1,10 @@
 // @ts-check
 import * as Repack from '@callstack/repack';
+import { NativeWindPlugin } from '@callstack/repack-plugin-nativewind';
+import { ReanimatedPlugin } from '@callstack/repack-plugin-reanimated';
 import webpack from 'webpack';
 
+import { buildHostAssetRules } from './hostAssetRules.mts';
 import { buildSharedSingletons } from './sharedSingletons.mts';
 
 export default Repack.defineWebpackConfig((env) => {
@@ -25,21 +28,26 @@ export default Repack.defineWebpackConfig((env) => {
           use: '@callstack/repack/babel-swc-loader',
           type: 'javascript/auto',
         },
-        ...Repack.getAssetTransformRules(),
+        ...buildHostAssetRules(context!),
       ],
     },
     plugins: [
-      // @ts-expect-error
+      new NativeWindPlugin({
+        cssInteropOptions: { inlineRem: 16 },
+      }),
       new Repack.RepackPlugin({
         extraChunks: [
+          {
+            include: /^host-async-local$/,
+            type: 'local',
+          },
           {
             include: /.*/,
             type: 'remote',
             outputPath: `build/host-app/${platform}/output-remote`,
           },
         ],
       }),
-      // @ts-expect-error
       new Repack.plugins.ModuleFederationPluginV2({
         name: 'HostApp',
         filename: 'HostApp.container.js.bundle',
@@ -58,6 +66,7 @@ export default Repack.defineWebpackConfig((env) => {
           process.env.WITH_PRELOAD === 'true' ||
           process.env.WITH_PRELOAD === '1',
       }),
+      new ReanimatedPlugin({ unstable_disableTransform: true }),
     ],
   };
 });

apps/tester-federation-v2/configs/webpack.mini-app.mts

@@ -28,7 +28,6 @@ export default Repack.defineWebpackConfig((env) => {
       ],
     },
     plugins: [
-      // @ts-expect-error
       new Repack.RepackPlugin({
         extraChunks: [
           {
@@ -38,7 +37,6 @@ export default Repack.defineWebpackConfig((env) => {
           },
         ],
       }),
-      // @ts-expect-error
       new Repack.plugins.ModuleFederationPluginV2({
         name: 'MiniApp',
         filename: 'MiniApp.container.js.bundle',

apps/tester-federation-v2/e2e/async-chunk.e2e.ts

@@ -0,0 +1,19 @@
+import { test } from '@e2e-dev/mobile';
+import { expect } from 'e2e';
+
+test('Async chunk loads through ScriptManager and renders', async ({
+  app,
+  screen,
+}) => {
+  await app.open();
+  await expect(screen.getByTestId('home-screen')).toBeVisible({
+    timeout: 30_000,
+  });
+
+  const entry = screen.getByTestId('home-async-chunk-button');
+  await screen.scrollUntilVisible(entry);
+  await entry.tap();
+  await expect(screen.getByTestId('async-chunk-screen')).toBeVisible();
+
+  await expect(screen.getByTestId('async-chunk-content')).toBeVisible();
+});

apps/tester-federation-v2/e2e/gallery.e2e.ts

@@ -0,0 +1,21 @@
+import { test } from '@e2e-dev/mobile';
+import { expect } from 'e2e';
+
+test('Gallery MiniApp loads and renders its own navigator', async ({
+  app,
+  screen,
+}) => {
+  await app.open();
+  await expect(screen.getByTestId('home-screen')).toBeVisible({
+    timeout: 30_000,
+  });
+
+  const entry = screen.getByTestId('home-gallery-button');
+  await screen.scrollUntilVisible(entry);
+  await entry.tap();
+
+  await expect(screen.getByTestId('miniapp-gallery')).toBeVisible({
+    timeout: 45_000,
+  });
+  await expect(screen.getByText('Picture 1')).toBeVisible();
+});

apps/tester-federation-v2/e2e/host-assets.e2e.ts

@@ -0,0 +1,44 @@
+import { test } from '@e2e-dev/mobile';
+import { expect } from 'e2e';
+
+test('Host Assets screen renders', async ({ app, screen }) => {
+  await app.open();
+  await expect(screen.getByTestId('home-screen')).toBeVisible({
+    timeout: 30_000,
+  });
+
+  const entry = screen.getByTestId('home-host-assets-button');
+  await screen.scrollUntilVisible(entry);
+  await entry.tap();
+  await expect(screen.getByTestId('host-assets-screen')).toBeVisible();
+
+  const pic1Mode = screen.getByTestId('host-asset-pic-1-mode-report');
+  const pic2Mode = screen.getByTestId('host-asset-pic-2-mode-report');
+  const localMode = screen.getByTestId('host-asset-local-mode-report');
+  const inlineMode = screen.getByTestId('host-asset-inline-mode-report');
+  const localUri = screen.getByTestId('host-asset-local-uri-report');
+
+  await screen.scrollUntilVisible(pic1Mode);
+  await expect(pic1Mode).toHaveText('mode: Inlined');
+  await screen.scrollUntilVisible(pic2Mode);
+  await expect(pic2Mode).toHaveText('mode: Emitted');
+  await screen.scrollUntilVisible(localMode);
+  await expect(localMode).toHaveText('mode: Emitted');
+  await screen.scrollUntilVisible(inlineMode);
+  await expect(inlineMode).toHaveText('mode: Inlined');
+
+  await screen.scrollUntilVisible(localUri);
+  const uriText = (await localUri.textContent()) ?? '';
+  const assetUrl = new URL(uriText.slice('uri: '.length));
+  expect(assetUrl.protocol).toBe('http:');
+  expect(assetUrl.port).toBe('8081');
+  // Android resolves the dev server as 10.0.2.2 and iOS as localhost
+  expect(['localhost', '10.0.2.2']).toContain(assetUrl.hostname);
+
+  const probeHost =
+    assetUrl.hostname === '10.0.2.2' ? 'localhost' : assetUrl.hostname;
+  const response = await fetch(
+    `${assetUrl.protocol}//${probeHost}:${assetUrl.port}${assetUrl.pathname}${assetUrl.search}`
+  );
+  expect(response.status).toBe(200);
+});

apps/tester-federation-v2/e2e/miniapp-install.e2e.ts

@@ -0,0 +1,34 @@
+import { test } from '@e2e-dev/mobile';
+import { expect } from 'e2e';
+
+test('install, show, and remove the host mini-app chunk', async ({
+  app,
+  screen,
+}) => {
+  await app.open();
+  await expect(screen.getByTestId('home-screen')).toBeVisible({
+    timeout: 30_000,
+  });
+
+  const entry = screen.getByTestId('home-miniapp-install-button');
+  await screen.scrollUntilVisible(entry);
+  await entry.tap();
+  await expect(screen.getByTestId('miniapp-install-screen')).toBeVisible();
+
+  await screen.getByTestId('miniapp-install-button').tap();
+  await expect(screen.getByTestId('miniapp-install-button')).toBeDisabled();
+
+  await screen.getByTestId('miniapp-toggle-button').tap();
+  await expect(screen.getByTestId('miniapp-install-content')).toBeVisible();
+
+  await screen.getByTestId('miniapp-toggle-button').tap();
+  await expect(screen.getByTestId('miniapp-install-content')).toBeHidden();
+
+  await screen.getByTestId('miniapp-toggle-button').tap();
+  await expect(screen.getByTestId('miniapp-install-content')).toBeVisible();
+
+  await screen.getByTestId('miniapp-uninstall-button').tap();
+  await expect(screen.getByTestId('miniapp-install-content')).toBeHidden();
+  await expect(screen.getByTestId('miniapp-install-button')).toBeEnabled();
+  await expect(screen.getByTestId('miniapp-toggle-button')).toBeDisabled();
+});

apps/tester-federation-v2/e2e/nativewind.e2e.ts

@@ -0,0 +1,30 @@
+import { test } from '@e2e-dev/mobile';
+import { expect } from 'e2e';
+
+test('NativeWind styles render, respond and switch to dark', async ({
+  app,
+  screen,
+}) => {
+  await app.open();
+  await expect(screen.getByTestId('home-screen')).toBeVisible({
+    timeout: 30_000,
+  });
+
+  const entry = screen.getByTestId('home-nativewind-button');
+  await screen.scrollUntilVisible(entry);
+  await entry.tap();
+  await expect(screen.getByTestId('nativewind-screen')).toBeVisible();
+
+  const padding = screen.getByTestId('nativewind-padding-report');
+  await expect(padding).toHaveText('padding-applied: 16');
+
+  const calcWidth = screen.getByTestId('nativewind-calc-width-report');
+  await expect(calcWidth).toHaveText('calc-width: 248');
+
+  const colorScheme = screen.getByTestId('nativewind-color-scheme-report');
+  await expect(colorScheme).toHaveText('color-scheme: light');
+  await screen.getByTestId('nativewind-dark-mode-button').tap();
+  await expect(colorScheme).toHaveText('color-scheme: dark');
+  await screen.getByTestId('nativewind-dark-mode-button').tap();
+  await expect(colorScheme).toHaveText('color-scheme: light');
+});

apps/tester-federation-v2/e2e/reanimated.e2e.ts

@@ -0,0 +1,26 @@
+import { test } from '@e2e-dev/mobile';
+import { expect } from 'e2e';
+
+test('Reanimated spring tracks taps and reset', async ({ app, screen }) => {
+  await app.open();
+  await expect(screen.getByTestId('home-screen')).toBeVisible({
+    timeout: 30_000,
+  });
+
+  const entry = screen.getByTestId('home-reanimated-button');
+  await screen.scrollUntilVisible(entry);
+  await entry.tap();
+  await expect(screen.getByTestId('reanimated-screen')).toBeVisible();
+
+  const width = screen.getByTestId('reanimated-width-report');
+  await expect(width).toHaveText('width: 100');
+
+  await screen.getByTestId('reanimated-click-button').tap();
+  await expect(width).toHaveText('width: 150');
+
+  await screen.getByTestId('reanimated-click-button').tap();
+  await expect(width).toHaveText('width: 200');
+
+  await screen.getByTestId('reanimated-reset-button').tap();
+  await expect(width).toHaveText('width: 100');
+});

apps/tester-federation-v2/e2e/remote-chunk.e2e.ts

@@ -0,0 +1,32 @@
+import { test } from '@e2e-dev/mobile';
+import { expect } from 'e2e';
+
+test('prefetch, load, and invalidate the host remote chunk', async ({
+  app,
+  screen,
+}) => {
+  await app.open();
+  await expect(screen.getByTestId('home-screen')).toBeVisible({
+    timeout: 30_000,
+  });
+
+  const entry = screen.getByTestId('home-remote-chunk-button');
+  await screen.scrollUntilVisible(entry);
+  await entry.tap();
+  await expect(screen.getByTestId('remote-chunk-screen')).toBeVisible();
+
+  await screen.getByTestId('remote-chunk-prefetch-button').tap();
+  await expect(
+    screen.getByTestId('remote-chunk-prefetch-button')
+  ).toBeDisabled();
+
+  await screen.getByTestId('remote-chunk-load-button').tap();
+  await expect(screen.getByTestId('remote-chunk-content')).toBeVisible();
+
+  await screen.getByTestId('remote-chunk-invalidate-button').tap();
+  await expect(screen.getByTestId('remote-chunk-content')).toBeHidden();
+  await expect(screen.getByTestId('remote-chunk-load-button')).toBeVisible();
+  await expect(
+    screen.getByTestId('remote-chunk-prefetch-button')
+  ).toBeEnabled();
+});