feat: init electron e2e code source

e2e/electron/src/app.e2e-spec.ts

@@ -0,0 +1,35 @@
+import * as path from 'path';
+import { Application } from 'spectron';
+
+describe('A simple test to verify a visible window is opened with a title', () => {
+  // Init local app
+  let app = new Application({
+    path: path.join(__dirname, '../../../node_modules/.bin/electron'),
+    args: [path.join(__dirname, '../../../dist/build/main.js')],
+  });
+
+  beforeAll(async () => {
+    // Init local app and wait until window loaded
+    await app.start();
+    await app.client.waitUntilWindowLoaded();
+  });
+
+  afterAll(async () => {
+    if (app && app.isRunning()) {
+      // Wait 1 second and then stop local app
+      await new Promise((resolve) => setTimeout(resolve, 1000));
+      await app.stop();
+    }
+  });
+
+  it('shows an initial window', async () => {
+    // Checking there is one visible window
+    expect(await app.browserWindow.isVisible()).toEqual(true);
+    // Please note that getWindowCount() will return 2 if `dev tools` are opened.
+    expect(await app.client.getWindowCount()).toEqual(1);
+  });
+
+  it('should have expected title', async () => {
+    expect(await app.client.getTitle()).toEqual('ElectronAngularQuickStart');
+  });
+});