Migrate tests to TypeScript (#167)

* move tests to typescript * move mocks dir to root
MetaMask · May 6, 2021 · 1a668f1 · 1a668f1
1 parent 1dc6beb
commit 1a668f1
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Showing 10 changed files with 417 additions and 364 deletions.
diff --git a/jest.config.js b/jest.config.js
@@ -11,9 +11,9 @@ module.exports = {
   //   },
   // },
   setupFilesAfterEnv: ['./jest.setup.js'],
-  moduleFileExtensions: ['js'],
-  silent: true,
   testEnvironment: 'jsdom',
-  testRegex: ['\\.test\\.js$'],
+  silent: true,
+  preset: 'ts-jest',
+  testRegex: ['\\.test\\.ts$'],
   testTimeout: 5000,
 };
diff --git a/mocks/DuplexStream.ts b/mocks/DuplexStream.ts
@@ -0,0 +1,21 @@
+import { Duplex } from 'stream';
+
+export default class DuplexStream extends Duplex {
+  constructor() {
+    super({
+      objectMode: true,
+    });
+  }
+
+  pushToSubstream(name: string, data: unknown) {
+    this.push({ name, data });
+  }
+
+  _write(_data: unknown, _encoding: string, callback: any) {
+    callback();
+  }
+
+  _read() {
+    return undefined;
+  }
+}
diff --git a/package.json b/package.json
@@ -9,7 +9,7 @@
   },
   "scripts": {
     "build": "tsc --project .",
-    "test": "yarn build && jest",
+    "test": "jest",
     "coverage": "jest --coverage",
     "lint:eslint": "eslint . --cache --ext js,ts",
     "lint:misc": "prettier '**/*.json' '**/*.md' '**/*.yml' --single-quote --ignore-path .gitignore",
@@ -55,7 +55,7 @@
     "@metamask/eslint-config-jest": "^6.0.0",
     "@metamask/eslint-config-nodejs": "^6.0.0",
     "@metamask/eslint-config-typescript": "^6.0.0",
-    "@types/jest": "^26.0.5",
+    "@types/jest": "^26.0.23",
     "@types/node": "^14.14.14",
     "@types/pump": "^1.1.0",
     "@types/readable-stream": "^2.3.9",
@@ -71,6 +71,7 @@
     "jest": "^26.6.3",
     "jest-chrome": "^0.7.1",
     "prettier": "^2.2.1",
-    "typescript": "^4.1.3"
+    "ts-jest": "^26.5.6",
+    "typescript": "^4.2.4"
   }
 }