Fixing jest

__tests__/App-test.tsx

@@ -5,7 +5,7 @@ import App from "../src/App";
 import renderer from "react-test-renderer";
 
 jest.mock("react-native-camera", () => {
-  return require("../mocks/Camera");
+  return require("../mocks/react-native-camera");
 });
 
 

assetsTransformer.js

@@ -0,0 +1,8 @@
+// https://github.com/facebook/jest/issues/2663#issuecomment-317109798
+const path = require('path');
+
+module.exports = {
+  process(src, filename, config, options) {
+    return 'module.exports = ' + JSON.stringify(path.basename(filename)) + ';';
+  },
+};

jest.config.js

@@ -2,6 +2,13 @@ module.exports = {
   preset: 'react-native',
   moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
   transformIgnorePatterns: [
-    "node_modules/(?!react-native|@shoutem|react-clone-referenced-element|native-base-shoutem-theme|react-native-camera)"
-  ]
+    "node_modules/(?!react-native|@shoutem|react-clone-referenced-element|native-base-shoutem-theme|react-native-camera|@react-navigation|react-navigation-tabs)"
+  ],
+  "setupFiles": [
+    "./jestSetup.js"
+  ],
+  "moduleNameMapper": {
+    "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/assetsTransformer.js",
+    "\\.(css|less)$": "<rootDir>/assetsTransformer.js"
+  }
 }

jestSetup.js

@@ -0,0 +1,16 @@
+// https://github.com/kmagiera/react-native-gesture-handler/issues/344#issuecomment-450859200
+import { NativeModules as RNNativeModules } from "react-native";
+
+RNNativeModules.UIManager = RNNativeModules.UIManager || {};
+RNNativeModules.UIManager.RCTView = RNNativeModules.UIManager.RCTView || {};
+RNNativeModules.RNGestureHandlerModule = RNNativeModules.RNGestureHandlerModule || {
+  State: { BEGAN: "BEGAN", FAILED: "FAILED", ACTIVE: "ACTIVE", END: "END" },
+  attachGestureHandler: jest.fn(),
+  createGestureHandler: jest.fn(),
+  dropGestureHandler: jest.fn(),
+  updateGestureHandler: jest.fn(),
+
+};
+RNNativeModules.PlatformConstants = RNNativeModules.PlatformConstants || {
+  forceTouchAvailable: false
+};

package.json

@@ -5,7 +5,7 @@
   "scripts": {
     "start": "node node_modules/react-native/local-cli/cli.js start",
     "test": "jest",
-    "test-update-snapshot": "jest -u --transformIgnorePatterns \"node_modules/(?!react-native|native-base|native-base-shoutem-theme)\""
+    "test-update-snapshot": "jest -u"
   },
   "dependencies": {
     "@types/qrcode": "1.3.3",