use real ws in expo

Author: georgiy.rusanov

examples/expo-app/jest.setup.js

@@ -0,0 +1,43 @@
+// Jest setup file for Expo app
+// This file configures the test environment to use real WebSocket instead of mocks
+
+// Mock expo-router
+jest.mock('expo-router', () => ({
+  useRouter: () => ({
+    push: jest.fn(),
+    replace: jest.fn(),
+    back: jest.fn(),
+  }),
+  useLocalSearchParams: () => ({}),
+  useGlobalSearchParams: () => ({}),
+}))
+
+// Mock expo-constants
+jest.mock('expo-constants', () => ({
+  expoConfig: {
+    extra: {
+      supabaseUrl: process.env.SUPABASE_URL || 'http://127.0.0.1:54321',
+      supabaseAnonKey:
+        process.env.SUPABASE_ANON_KEY ||
+        'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZS1kZW1vIiwicm9sZSI6ImFub24iLCJleHAiOjE5ODM4MTI5OTZ9.CRXP1A7WOeoJeXxjNni43kdQwgnWNReilDMblYTn_I0',
+    },
+  },
+}))
+
+// Configure React Native to use real WebSocket
+const ReactNative = require('react-native')
+if (ReactNative.WebSocket && ReactNative.WebSocket.name === 'WSWebSocketDummy') {
+  // Replace the dummy WebSocket with real one
+  ReactNative.WebSocket = require('ws')
+}
+
+// Global test setup
+global.console = {
+  ...console,
+  // Uncomment to ignore a specific log level
+  // log: jest.fn(),
+  // debug: jest.fn(),
+  // info: jest.fn(),
+  // warn: jest.fn(),
+  // error: jest.fn(),
+}

examples/expo-app/package-lock.json

@@ -42,17 +42,22 @@
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
+    "@testing-library/react-native": "^13.2.0",
     "@types/jest": "^29.5.14",
     "@types/react": "~19.1.0",
     "eslint": "^9.25.0",
     "eslint-config-expo": "~9.2.0",
     "jest": "~29.7.0",
     "jest-expo": "~53.0.5",
     "typescript": "~5.8.3",
-    "@testing-library/react-native": "^13.2.0"
+    "ws": "^8.18.2"
   },
   "private": true,
   "jest": {
-    "preset": "jest-expo"
+    "preset": "jest-expo",
+    "setupFilesAfterEnv": [
+      "<rootDir>/jest.setup.js"
+    ],
+    "testEnvironment": "node"
   }
 }