chore(typescript): switching codebase to ts

jest.config.js

@@ -0,0 +1,9 @@
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  collectCoverageFrom: [
+    'src/*.{js,jsx}',
+    '!**/node_modules/**',
+    '!**/vendor/**',
+  ],
+};

package.json

@@ -4,6 +4,7 @@
   "version": "1.0.17",
   "description": "Small tool for wait that all xhr are finished in pupeteer",
   "main": "lib/index.js",
+  "types": "lib/index.d.ts",
   "homepage": "https://github.com/jtassin/pending-xhr-puppeteer",
   "repository": {
     "type": "git",
@@ -24,22 +25,22 @@
     "e2e"
   ],
   "devDependencies": {
+    "@types/jest": "^24.0.11",
+    "@types/puppeteer": "^1.12.3",
     "eslint": "5.15.3",
     "eslint-config-prettier": "3.6.0",
     "eslint-plugin-jest": "22.4.1",
     "husky": "1.3.1",
-    "jest": "24.5.0",
+    "jest": "^24.5.0",
     "lint-staged": "8.1.0",
     "prettier": "1.15.3",
-    "puppeteer": "1.13.0",
-    "rollup": "1.0.0"
-  },
-  "jest": {
-    "collectCoverageFrom": [
-      "src/*.{js,jsx}",
-      "!**/node_modules/**",
-      "!**/vendor/**"
-    ]
+    "puppeteer": "1.11.0",
+    "rollup": "1.0.0",
+    "rollup-plugin-typescript": "^1.0.0",
+    "ts-jest": "^24.0.0",
+    "tsc": "^1.20150623.0",
+    "tslib": "^1.9.3",
+    "typescript": "^3.3.4000"
   },
   "scripts": {
     "prettier:write": "prettier --single-quote --trailing-comma es5 --write src/**/*",

src/__tests__/index.test.js

@@ -153,7 +153,7 @@ describe('PendingXHR', () => {
     });
   });
 
-  describe('waitForAllXhrFinished', async () => {
+  describe('waitForAllXhrFinished', () => {
     it('returns immediatly if no xhr pending count', async () => {
       await startServerReturning(OK_NO_XHR);
       const page = await browser.newPage();

src/index.js → src/index.ts

@@ -1,13 +1,27 @@
+import { Request, Page } from 'puppeteer';
+
+interface ResolvableRequest extends Request {
+  resolver: () => void; 
+}
+
 class PendingXHR {
-  constructor(page) {
+
+  page: Page;
+  resourceType: string;
+  pendingXhrs: Set<Request>;
+  finishedWithSuccessXhrs: Set<Request>;
+  finishedWithErrorsXhrs: Set<Request>;
+  promisees: Array<Promise<void>>
+
+  constructor(page: Page) {
+    this.promisees = [];
     this.page = page;
     this.resourceType = 'xhr';
     // page.setRequestInterception(true);
     this.pendingXhrs = new Set();
     this.finishedWithSuccessXhrs = new Set();
     this.finishedWithErrorsXhrs = new Set();
-    this.promisees = [];
-    page.on('request', request => {
+    page.on('request', (request: ResolvableRequest) => {
       if (request.resourceType() === this.resourceType) {
         this.pendingXhrs.add(request);
         this.promisees.push(
@@ -17,7 +31,7 @@ class PendingXHR {
         );
       }
     });
-    page.on('requestfailed', request => {
+    page.on('requestfailed', (request: ResolvableRequest) => {
       if (request.resourceType() === this.resourceType) {
         this.pendingXhrs.delete(request);
         this.finishedWithErrorsXhrs.add(request);
@@ -27,7 +41,7 @@ class PendingXHR {
         }
       }
     });
-    page.on('requestfinished', request => {
+    page.on('requestfinished', (request: ResolvableRequest) => {
       if (request.resourceType() === this.resourceType) {
         this.pendingXhrs.delete(request);
         this.finishedWithSuccessXhrs.add(request);
@@ -41,7 +55,7 @@ class PendingXHR {
 
   async waitForAllXhrFinished() {
     if (this.pendingXhrCount() === 0) {
-      return true;
+      return;
     }
     await Promise.all(this.promisees);
   }

tsconfig.json

@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+    "outDir": "build",
+    "module": "commonjs",
+    "target": "es5",
+    "lib": ["es6"],
+    "sourceMap": true,
+    "allowJs": true,
+    "moduleResolution": "node",
+    "rootDir": "src",
+    "noImplicitReturns": true,
+    "noImplicitThis": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true
+  },
+  "exclude": ["node_modules", "build"],
+  "types": ["typePatches"]
+}