Fix test --coverage errors related to TS

.eslintignore

@@ -1,3 +1,4 @@
 node_modules/
 dist/
 jest-setup.js
+coverage/

.gitignore

@@ -7,7 +7,6 @@
 
 # VSCode
 .vscode/
-tsconfig.json
 jsconfig.json
 
 # Xcode
@@ -51,3 +50,6 @@ android/keystores/debug.keystore
 
 # Build
 dist/
+
+# Code coverage files
+coverage/

package.json

@@ -11,10 +11,13 @@
   ],
   "react-native": "src/index.js",
   "scripts": {
+    "pretest": "yarn lint && yarn build",
     "test": "jest",
     "lint": "eslint .",
     "format": "eslint . --fix",
-    "build": "babel --no-babelrc --plugins=transform-es2015-block-scoping,transform-es2015-modules-commonjs,transform-react-jsx,transform-class-properties,transform-object-rest-spread,transform-flow-strip-types src --copy-files --out-dir dist --ignore '**/__tests__/**'",
+    "babel": "babel --no-babelrc --plugins=transform-es2015-block-scoping,transform-es2015-modules-commonjs,transform-react-jsx,transform-class-properties,transform-object-rest-spread,transform-flow-strip-types src --copy-files --out-dir dist --ignore '**/__tests__/**'",
+    "tsc": "tsc",
+    "build": "yarn babel && yarn tsc",
     "prepare": "yarn build",
     "release": "release-it"
   },
@@ -59,34 +62,49 @@
     "eslint": "^4.12.1",
     "eslint-config-satya164": "^1.0.1",
     "eslint-plugin-react-native-globals": "^0.1.0",
-    "husky": "^0.14.3",
+    "husky": "^1.1.2",
     "jest": "^22.1.3",
     "jest-expo": "^30.0.0",
     "prettier": "^1.8.2",
     "react": "16.3.1",
     "react-dom": "16.3.1",
     "react-native": "^0.55.4",
     "react-test-renderer": "16.3.1",
-    "release-it": "^7.6.1"
+    "release-it": "^7.6.1",
+    "ts-jest": "^23.10.4",
+    "typescript": "^3.1.3"
   },
   "peerDependencies": {
     "react": "*"
   },
   "jest": {
     "preset": "react-native",
-    "testRegex": "/__tests__/[^/]+-test\\.js$",
+    "testRegex": "/__tests__/[^/]+-test\\.(js|tsx)?$",
     "setupFiles": [
       "<rootDir>/jest-setup.js"
     ],
     "coveragePathIgnorePatterns": [
       "jest-setup.js"
     ],
+    "transformIgnorePatterns": [
+      "node_modules/(?!(jest-)?react-native|react-clone-referenced-element)"
+    ],
+    "transform": {
+      "^.+\\.tsx?$": "ts-jest"
+    },
     "modulePathIgnorePatterns": [
       "<rootDir>/example/"
     ],
-    "transformIgnorePatterns": [
-      "node_modules/(?!(jest-)?react-native|react-clone-referenced-element)"
-    ]
+    "globals": {
+      "ts-jest": {
+        "tsConfig": "./tsconfig.test.json",
+        "diagnostics": {
+          "ignoreCodes": [
+            151001
+          ]
+        }
+      }
+    }
   },
   "prettier": {
     "trailingComma": "es5",

src/getChildNavigation.js

@@ -1,5 +1,5 @@
 import getChildEventSubscriber from './getChildEventSubscriber';
-import getChildRouter from './getChildRouter';
+import getChildRouter from './getChildRouter.ts';
 import getNavigationActionCreators from './routers/getNavigationActionCreators';
 import getChildrenNavigationCache from './getChildrenNavigationCache';
 

src/getChildRouter.js → src/getChildRouter.ts

@@ -1,4 +1,4 @@
-export default function getChildRouter(router, routeName) {
+export default function getChildRouter(router: any, routeName: string) {
   if (router.childRouters && router.childRouters[routeName]) {
     return router.childRouters[routeName];
   }

src/routers/KeyGenerator.ts

@@ -0,0 +1,11 @@
+let uniqueBaseId: string = `id-${Date.now()}`;
+let uuidCount: number = 0;
+
+export function _TESTING_ONLY_normalize_keys(): void {
+  uniqueBaseId = 'id';
+  uuidCount = 0;
+}
+
+export function generateKey(): string {
+  return `${uniqueBaseId}-${uuidCount++}`;
+}

src/routers/StackRouter.js

@@ -5,7 +5,7 @@ import getScreenForRouteName from './getScreenForRouteName';
 import StateUtils from '../StateUtils';
 import validateRouteConfigMap from './validateRouteConfigMap';
 import invariant from '../utils/invariant';
-import { generateKey } from './KeyGenerator';
+import { generateKey } from './KeyGenerator.ts';
 import { createPathParser } from './pathUtils';
 
 function behavesLikePushAction(action) {

src/routers/__tests__/PathHandling-test.js

@@ -6,7 +6,7 @@ import SwitchRouter from '../SwitchRouter';
 import StackRouter from '../StackRouter';
 import TabRouter from '../TabRouter';
 import NavigationActions from '../../NavigationActions';
-import { _TESTING_ONLY_normalize_keys } from '../KeyGenerator';
+import { _TESTING_ONLY_normalize_keys } from '../KeyGenerator.ts';
 
 beforeEach(() => {
   _TESTING_ONLY_normalize_keys();

src/routers/__tests__/Routers-test.js

@@ -7,7 +7,7 @@ import TabRouter from '../TabRouter';
 import SwitchRouter from '../SwitchRouter';
 
 import NavigationActions from '../../NavigationActions';
-import { _TESTING_ONLY_normalize_keys } from '../KeyGenerator';
+import { _TESTING_ONLY_normalize_keys } from '../KeyGenerator.ts';
 
 beforeEach(() => {
   _TESTING_ONLY_normalize_keys();

src/routers/__tests__/StackRouter-test.js

@@ -5,7 +5,7 @@ import React from 'react';
 import StackRouter from '../StackRouter';
 import StackActions from '../StackActions';
 import NavigationActions from '../../NavigationActions';
-import { _TESTING_ONLY_normalize_keys } from '../KeyGenerator';
+import { _TESTING_ONLY_normalize_keys } from '../KeyGenerator.ts';
 
 beforeEach(() => {
   _TESTING_ONLY_normalize_keys();

tsconfig.json

@@ -0,0 +1,31 @@
+{
+  "compilerOptions": {
+    "module": "es2015",
+    "target": "esnext",
+    "lib": ["dom", "es2015", "es2016"],
+    "sourceMap": false,
+    "moduleResolution": "node",
+    "rootDir": "src",
+    "forceConsistentCasingInFileNames": true,
+    "noImplicitReturns": true,
+    "noImplicitThis": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true,
+    "suppressImplicitAnyIndexErrors": true,
+    "noUnusedLocals": true,
+    "declaration": true,
+    "pretty": true,
+    "jsx": "react-native",
+    "noEmitHelpers": true,
+    "importHelpers": true,
+    "strict": true,
+    "outDir": "dist",
+    "declarationDir": "./types",
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true
+  },
+  "typeAcquisition": {
+    "enable": true,
+    "include": ["prop-types", "react", "react-native"]
+  }
+}

tsconfig.test.json

@@ -0,0 +1,7 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "commonjs",
+    "sourceMap": true
+  }
+}

tslint.json

@@ -0,0 +1,15 @@
+{
+  "extends": "tslint:recommended",
+  "rules": {
+    "arrow-parens": [true, "ban-single-arg-parens"],
+    "arrow-return-shorthand": [true, "multiline"],
+    "trailing-comma": false,
+    "quotemark": {
+      "options": [
+        "single",
+        "avoid-escape"
+      ]
+    },
+    "object-literal-sort-keys": false
+  }
+}