[examples][frameworks] Add missing examples and add a test to ensure every framework has an example (#4372)

* Add test to frameworks

* Add example for Docusaurus v2

* Add example for ionic-angular

* Update READMEs

* Use existing versions

* Reset yarn.lock

* Add schema validation and add missing Scully.io logo

examples/ionic-angular/e2e/src/app.e2e-spec.ts

@@ -0,0 +1,24 @@
+import { AppPage } from './app.po';
+
+describe('new App', () => {
+  let page: AppPage;
+
+  beforeEach(() => {
+    page = new AppPage();
+  });
+
+  it('should display the menu', () => {
+    page.navigateTo();
+    expect(page.getMenu()).toBeTruthy();
+  });
+
+  it('should get the slides text', () => {
+    page.navigateTo();
+    expect(page.getFirstSlide()).toBe('ion-slide');
+  });
+
+  it('should create a router outlet', () => {
+    page.navigateTo();
+    expect(page.getRouter()).toBeTruthy();
+  });
+});

examples/ionic-angular/e2e/src/app.po.ts

@@ -0,0 +1,33 @@
+import { browser, by, element, ElementFinder, ExpectedConditions } from 'protractor';
+
+export class AppPage {
+  navigateTo() {
+    return browser.get('/');
+  }
+
+  async getMenu() {
+    const el = this.getElement('app-root ion-menu');
+    await this.waitForSelector(el);
+    return el;
+  }
+
+  async getFirstSlide() {
+    const el = this.getElement('app-root ion-slides ion-slide:first-child');
+    await this.waitForSelector(el);
+    return el.getTagName();
+  }
+
+  async getRouter() {
+    const el = this.getElement('app-root ion-router-outlet');
+    await this.waitForSelector(el);
+    return el;
+  }
+
+  async waitForSelector(el: ElementFinder) {
+    return browser.wait(ExpectedConditions.presenceOf(el), 3000);
+  }
+
+  getElement(selector) {
+    return element(by.css(selector));
+  }
+}