tests: switch to ts-jest (#3578)

[skip-ci]

.eslintrc.js

@@ -38,6 +38,7 @@ module.exports = {
     '@typescript-eslint/explicit-function-return-type': 'off',
     '@typescript-eslint/camelcase': 'off',
     '@typescript-eslint/no-empty-function': 'off',
+    '@typescript-eslint/ban-ts-ignore': 'warn',
   },
   globals: {
     __DEV__: true,

jest.config.js

@@ -1,8 +1,14 @@
 module.exports = {
   maxConcurrency: 10,
   preset: './tests/node_modules/react-native/jest-preset.js',
-  setupFiles: ['./jest.setup.js'],
+  transform: {
-  testMatch: ['**/packages/**/__tests__/**/*.test.js'],
+    '^.+\\.(js)$': '<rootDir>/node_modules/babel-jest',
+    '\\.(ts|tsx)$': 'ts-jest',
+  },
+  setupFiles: ['./jest.setup.ts'],
+  testMatch: ['**/packages/**/__tests__/**/*.test.(ts|js)'],
   modulePaths: ['node_modules', './tests/node_modules'],
   testPathIgnorePatterns: ['./packages/template'],
+  moduleDirectories: ['node_modules', './tests/node_modules'],
+  moduleFileExtensions: ['ts', 'tsx', 'js'],
 };

package.json

@@ -34,6 +34,9 @@
     "format:markdown": "prettier --write \"docs/**/*.md\""
   },
   "devDependencies": {
+    "@babel/preset-env": "7.9.5",
+    "@babel/preset-flow": "7.9.0",
+    "@types/jest": "^25.2.1",
     "@types/react-native": "^0.62.0",
     "@typescript-eslint/eslint-plugin": "^2.18.0",
     "@typescript-eslint/parser": "^2.18.0",
@@ -45,15 +48,14 @@
     "eslint-plugin-react": "^7.19.0",
     "genversion": "^2.2.0",
     "inquirer": "^7.1.0",
+    "jest": "^25.5.1",
     "lerna": "3.20.2",
     "prettier": "^1.19.1",
     "rimraf": "^3.0.2",
     "shelljs": "^0.8.3",
+    "ts-jest": "^25.4.0",
     "typedoc": "^0.15.0",
-    "typescript": "^3.8.3",
+    "typescript": "^3.8.3"
-    "jest": "^24.9.0",
-    "@babel/preset-env": "7.9.5",
-    "@babel/preset-flow": "7.9.0"
   },
   "workspaces": {
     "packages": [

packages/functions/__tests__/functions.test.ts

@@ -12,8 +12,13 @@ describe('Cloud Functions', () => {
   describe('useFunctionsEmulator()', () => {
     it('useFunctionsEmulator -> uses 10.0.2.2', () => {
       functions().useFunctionsEmulator('http://localhost');
+
+      // @ts-ignore
       expect(functions()._useFunctionsEmulatorOrigin).toBe('http://10.0.2.2');
+
       functions().useFunctionsEmulator('http://127.0.0.1');
+
+      // @ts-ignore
       expect(functions()._useFunctionsEmulatorOrigin).toBe('http://10.0.2.2');
     });
   });
@@ -22,6 +27,8 @@ describe('Cloud Functions', () => {
     it('throws an error with an incorrect timeout', () => {
       try {
         const app = firebase.app();
+
+        // @ts-ignore
         app.functions().httpsCallable('example', { timeout: 'test' });
         return Promise.reject(new Error('Did not throw'));
       } catch (e) {

packages/perf/__tests__/perf.test.ts

@@ -11,7 +11,10 @@ describe('Performance Monitoring', () => {
 
   describe('setPerformanceCollectionEnabled', () => {
     it('errors if not boolean', () => {
-      expect(() => perf().setPerformanceCollectionEnabled()).toThrow('must be a boolean');
+      expect(() => {
+        // @ts-ignore
+        perf().setPerformanceCollectionEnabled();
+      }).toThrow('must be a boolean');
     });
   });
 
@@ -19,11 +22,14 @@ describe('Performance Monitoring', () => {
     it('returns an instance of Trace', () => {
       const trace = perf().newTrace('invertase');
       expect(trace.constructor.name).toEqual('Trace');
+
+      // @ts-ignore
       expect(trace._identifier).toEqual('invertase');
     });
 
     it('errors if identifier not a string', () => {
       try {
+        // @ts-ignore
         perf().newTrace(1337);
         return Promise.reject(new Error('Did not throw'));
       } catch (e) {
@@ -51,12 +57,17 @@ describe('Performance Monitoring', () => {
     it('returns an instance of HttpMetric', async () => {
       const metric = perf().newHttpMetric('https://invertase.io', 'GET');
       expect(metric.constructor.name).toEqual('HttpMetric');
+
+      // @ts-ignore
       expect(metric._url).toEqual('https://invertase.io');
+
+      // @ts-ignore
       expect(metric._httpMethod).toEqual('GET');
     });
 
     it('errors if url not a string', async () => {
       try {
+        // @ts-ignore
         perf().newHttpMetric(1337, 7331);
         return Promise.reject(new Error('Did not throw'));
       } catch (e) {
@@ -67,6 +78,7 @@ describe('Performance Monitoring', () => {
 
     it('errors if httpMethod not a string', async () => {
       try {
+        // @ts-ignore
         perf().newHttpMetric('https://invertase.io', 1337);
         return Promise.reject(new Error('Did not throw'));
       } catch (e) {
@@ -79,6 +91,7 @@ describe('Performance Monitoring', () => {
 
     it('errors if httpMethod not a valid type', async () => {
       try {
+        // @ts-ignore
         perf().newHttpMetric('https://invertase.io', 'FIRE');
         return Promise.reject(new Error('Did not throw'));
       } catch (e) {
@@ -93,6 +106,7 @@ describe('Performance Monitoring', () => {
   describe('setPerformanceCollectionEnabled()', () => {
     it('errors if not boolean', async () => {
       try {
+        // @ts-ignore
         firebase.perf().setPerformanceCollectionEnabled();
         return Promise.reject(new Error('Did not throw'));
       } catch (e) {