add test (plus jest config)

Author: Lms24

packages/angular/jest.config.js

@@ -0,0 +1,6 @@
+const baseConfig = require('../../jest/jest.config.js');
+
+module.exports = {
+  ...baseConfig,
+  testEnvironment: 'jsdom',
+};

packages/angular/package.json

@@ -52,7 +52,10 @@
     "fix:prettier": "prettier --write \"{src,test,scripts}/**/*.ts\"",
     "lint": "run-s lint:prettier lint:eslint",
     "lint:eslint": "eslint . --cache --cache-location '../../eslintcache/' --format stylish",
-    "lint:prettier": "prettier --check \"{src,test,scripts}/**/*.ts\""
+    "lint:prettier": "prettier --check \"{src,test,scripts}/**/*.ts\"",
+    "test": "run-s test:unit",
+    "test:unit": "jest",
+    "test:unit:watch": "jest --watch"
   },
   "volta": {
     "extends": "../../package.json"

packages/angular/test/sdk.test.ts

@@ -0,0 +1,16 @@
+import * as SentryBrowser from '@sentry/browser';
+
+import { init } from '../src/sdk';
+
+describe('init', () => {
+  it('sets the Angular version (if available) in the global scope', () => {
+    const setContextSpy = jest.spyOn(SentryBrowser, 'setContext');
+
+    init({});
+
+    // In our case, the Angular version is 10 because that's the version we use for compilation
+    // (and hence the dependency version of Angular core we installed (see package.json))
+    expect(setContextSpy).toHaveBeenCalledTimes(1);
+    expect(setContextSpy).toHaveBeenCalledWith('angular', { version: 10 });
+  });
+});