🔧 jest

Author: thlmenezes

__tests__/__mocks__/index.ts

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+// eslint-disable-next-line @typescript-eslint/ban-ts-comment
+// @ts-ignore
+import mockSafeAreaContext from "react-native-safe-area-context/jest/mock";
+
+// SOURCE: https://stackoverflow.com/questions/66652403/jest-config-is-throwing-type-errorhandler-error-mixed-isfatal-boolean
+
+beforeAll(() => {
+  // SOURCE: https://stackoverflow.com/questions/50793885/referenceerror-you-are-trying-to-import-a-file-after-the-jest-environment-has#50793993
+  jest.useFakeTimers();
+});
+
+// SOURCE: https://stackoverflow.com/questions/59587799/how-to-resolve-animated-usenativedriver-is-not-supported-because-the-native#59593847
+jest.mock("react-native/Libraries/Animated/NativeAnimatedHelper");
+
+jest.mock("react-native-reanimated", () => {
+  const Reanimated = require("react-native-reanimated/mock");
+
+  Reanimated.default.call = () => null;
+
+  Reanimated.useSharedValue = jest.fn;
+  Reanimated.useAnimatedStyle = jest.fn;
+  return Reanimated;
+});
+
+jest.mock("react-native-gesture-handler", () =>
+  jest.requireActual("react-native-gesture-handler/jestSetup")
+);
+
+// jest.mock("@react-native-async-storage/async-storage", () =>
+//   require("@react-native-async-storage/async-storage/jest/async-storage-mock")
+// );
+
+jest.mock("@react-navigation/native", () => ({
+  ...jest.requireActual("@react-navigation/native"),
+  useNavigation: () => ({
+    navigate: jest.fn(),
+    goBack: jest.fn(),
+  }),
+  useRoute: () => ({
+    params: {
+      publicToken: "testToken",
+    },
+  }),
+}));
+
+// SOURCE: https://github.com/th3rdwave/react-native-safe-area-context#testing
+jest.mock("react-native-safe-area-context", () => mockSafeAreaContext);

jest.config.js

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+module.exports = {
+  preset: "jest-expo",
+  roots: ["<rootDir>"],
+  testMatch: ["**/?(*.)+(spec|test).ts?(x)"],
+  testPathIgnorePatterns: ["./node_modules/"],
+  moduleFileExtensions: ["js", "jsx", "ts", "tsx"],
+  moduleNameMapper: {
+    "^@root(.*)$": "<rootDir>/src/$1",
+  },
+  transform: {
+    "^.+\\.js$": "<rootDir>/node_modules/react-native/jest/preprocessor.js",
+    "^.+\\.(js|jsx|ts|tsx)$": "babel-jest",
+  },
+  transformIgnorePatterns: [
+    "node_modules/(?!(jest-)?react-native|@react-native|react-clone-referenced-element|@react-native-community|expo(nent)?|@expo(nent)?/.*|react-navigation|@react-navigation/.*|@unimodules/.*|sentry-expo|native-base)",
+  ],
+  setupFilesAfterEnv: ["<rootDir>/__tests__/__mocks__/index.ts"],
+  coverageReporters: ["json-summary", "text", "lcov"],
+  collectCoverageFrom: [
+    "**/*.{ts,tsx}",
+    "!**/coverage/**",
+    "!**/node_modules/**",
+    "!**/babel.config.js",
+    "!**/jest.setup.js",
+  ],
+};