refactor stack. Add details to example tests.

.ollama/ExampleTest.spec.tsx

@@ -10,6 +10,19 @@ import React, { act } from 'react';
 import { render, screen } from '@testing-library/react-native'
 import { MyComponent } from '@/app/component/MyComponent';
 
+/**
+ * IMPORTANT NOTE: If you need to use jest mock, remember that
+ * you cannot include any external components in the mock.
+ * You absolutely must use `jest.requireActual` to import the
+ * component *within* the jest.mock callback.
+*/
+jest.mock('@/app/component/index.tsx', () => {
+    // Require-actual the component
+    const { Text } = jest.requireActual('react-native');
+    // Use the component.
+    return () => <Text>Index</Text>
+  });
+
 describe('Message Component', () => {
 
     beforeEach(() => {

.vscode/settings.json

@@ -1,3 +1,2 @@
 {
-    "jestTestExplorer.pathToJest": "./node_modules/.bin/jest"
 }

__mocks__/expo-file-system.js

@@ -0,0 +1,10 @@
+// __mocks__/expo-file-system.js
+export const File = {
+  // Define the properties and methods you need for your tests
+  uri: 'file:///path/to/file',
+};
+
+export const Paths = {
+  // Define the paths you need for your tests
+  DOCUMENTS_DIRECTORY: '/path/to/documents',
+};

app/_layout.tsx

@@ -5,17 +5,12 @@ import { LanguageSelection } from '@/components/LanguageSelection';
 import { createNativeStackNavigator } from '@react-navigation/native-stack';
 import ConversationThread from '@/components/ConversationThread';
 import Home from '.';
+import TTNavStack from '@/components/TTNavStack';
 
 const Stack = createNativeStackNavigator();
 
 export default function Layout() {
   return (
-    <NavigationContainer>
-      <Stack.Navigator initialRouteName='LanguageSelection'>
-        <Stack.Screen name="LanguageSelection" component={Home} />
-        <Stack.Screen name="ConversationThread" component={ConversationThread} />
-        <Stack.Screen name="Settings" component={SettingsComponent} />
-      </Stack.Navigator>
-    </NavigationContainer>
+    <TTNavStack />
   );
 }

components/TTNavStack.tsx

@@ -0,0 +1,20 @@
+import * as React from 'react';
+import { NavigationContainer } from '@react-navigation/native';
+import SettingsComponent from '@/components/Settings';
+import { LanguageSelection } from '@/components/LanguageSelection';
+import { createNativeStackNavigator } from '@react-navigation/native-stack';
+import ConversationThread from '@/components/ConversationThread';
+
+const Stack = createNativeStackNavigator();
+
+export default function TTNavStack() {
+  return (
+    <NavigationContainer>
+      <Stack.Navigator initialRouteName='LanguageSelection'>
+        <Stack.Screen name="LanguageSelection" component={LanguageSelection} />
+        <Stack.Screen name="ConversationThread" component={ConversationThread} />
+        <Stack.Screen name="Settings" component={SettingsComponent} />
+      </Stack.Navigator>
+    </NavigationContainer>
+  );
+}

components/__tests__/index.spec.tsx

@@ -0,0 +1,30 @@
+import React from 'react';
+import { fireEvent, render, screen } from '@testing-library/react-native';
+import { NavigationContainer } from '@react-navigation/native';
+import { createStackNavigator } from '@react-navigation/stack';
+import TTNavStack from '../TTNavStack';
+
+jest.mock('expo-file-system', () => require('./__mocks__/expo-file-system'));
+
+const Stack = createStackNavigator();
+
+describe('Navigation', () => {
+  beforeEach(() => {
+    // Reset the navigation state before each test
+    jest.clearAllMocks();
+  });
+
+  it('Navigates to ConversationThread on language selection', async () => {
+    render(<TTNavStack />);
+    const languageSelectionText = await screen.findByText("Language Selection");
+    fireEvent.press(languageSelectionText);
+    expect(await screen.findByText("Conversation Thread")).toBeOnTheScreen();
+  });
+
+  it('Navigates to Settings on settings selection', async () => {
+    render(<TTNavStack />);
+    const settingsButton = await screen.findByText("Settings");
+    fireEvent.press(settingsButton);
+    expect(await screen.findByText("Settings")).toBeOnTheScreen();
+  });
+});

package.json

@@ -64,20 +64,10 @@
     "transformIgnorePatterns": [
       "node_modules/(?!((jest-)?react-native|@react-native(-community)?)|expo(nent)?|@expo(nent)?/.*|@expo-google-fonts/.*|react-navigation|@react-navigation/.*|@sentry/react-native|native-base|react-native-svg)"
     ],
-    "collectCoverage": true,
-    "collectCoverageFrom": [
-      "**/*.{ts,tsx,js,jsx}",
-      "!**/coverage/**",
-      "!**/node_modules/**",
-      "!**/babel.config.js",
-      "!**/expo-env.d.ts",
-      "!**/.expo/**"
-    ],
     "automock": false,
     "setupFilesAfterEnv": [
       "<rootDir>/jestSetup.ts"
-    ],
-    "testTimeout": 10000
+    ]
   },
   "devDependencies": {
     "@babel/core": "^7.26.7",