fix angular test

Author: SimenB

examples/angular/jest.config.js

@@ -1,7 +1,7 @@
 module.exports = {
   moduleFileExtensions: ['ts', 'html', 'js', 'json'],
   setupFilesAfterEnv: ['<rootDir>/setupJest.js'],
-  testEnvironment: 'jsdom',
+  testEnvironment: '<rootDir>/test-env.js',
   transform: {
     '\\.[tj]s$': ['babel-jest', {configFile: require.resolve('./.babelrc')}],
   },

examples/angular/test-env.js

@@ -0,0 +1,12 @@
+'use strict';
+
+const {
+  TestEnvironment: JSDOMTestEnvironment,
+} = require('jest-environment-jsdom');
+
+module.exports = class AngularEnv extends JSDOMTestEnvironment {
+  exportConditions() {
+    // we need to include `node` as `rxjs` defines `node`, `es2015`, `default`, not `browser` or `require`
+    return super.exportConditions().concat('node');
+  }
+};