test: add test cases for async and done

example/src/app/app.component.spec.ts

@@ -1,17 +1,17 @@
-import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { NoopAnimationsModule } from "@angular/platform-browser/animations";
 import {
   async,
   fakeAsync,
   tick,
-  ComponentFixture,
-} from '@angular/core/testing';
-import { NO_ERRORS_SCHEMA } from '@angular/core';
+  ComponentFixture
+} from "@angular/core/testing";
+import { NO_ERRORS_SCHEMA } from "@angular/core";
 
-import { ConfigureFn, configureTests } from '@lib/testing';
+import { ConfigureFn, configureTests } from "@lib/testing";
 
-import { AppComponent } from './app.component';
+import { AppComponent } from "./app.component";
 
-describe('AppComponent', () => {
+describe("AppComponent", () => {
   let fixture: ComponentFixture<AppComponent>;
   let component: AppComponent;
 
@@ -20,7 +20,7 @@ describe('AppComponent', () => {
       testBed.configureTestingModule({
         declarations: [AppComponent],
         imports: [NoopAnimationsModule],
-        schemas: [NO_ERRORS_SCHEMA],
+        schemas: [NO_ERRORS_SCHEMA]
       });
     };
 
@@ -31,27 +31,28 @@ describe('AppComponent', () => {
     });
   }));
 
-  it('should create the app', async(() => {
+  it("should create the app", async(() => {
     const app = component;
     expect(app).toBeTruthy();
   }));
 
-  it('snaps', () => {
+  it("snaps", () => {
     expect(fixture).toMatchSnapshot();
   });
 
   it(`should have as title 'app works!'`, async(() => {
     const app = component;
-    expect(app.title).toEqual('app works!');
+    expect(app.title).toEqual("app works!");
   }));
 
-  it('should render title in a h1 tag', async(() => {
+  it("should render title in a h1 tag", async(() => {
     const compiled = fixture.debugElement.nativeElement;
-    expect(compiled.querySelector('h1').textContent).toContain('app works!');
+    expect(compiled.querySelector("h1").textContent).toContain("app works!");
   }));
 
-  it('looks async but is synchronous', <any>fakeAsync(
-    (): void => {
+  it(
+    "looks async but is synchronous",
+    <any>fakeAsync((): void => {
       let flag = false;
       setTimeout(() => {
         flag = true;
@@ -61,8 +62,28 @@ describe('AppComponent', () => {
       expect(flag).toBe(false);
       tick(50);
       expect(flag).toBe(true);
-    }
-  ));
+    })
+  );
+
+  it(
+    "async should work",
+    <any>async((): void => {
+      let flag = false;
+      setTimeout(() => {
+        flag = true;
+        expect(flag).toBe(true);
+      }, 100);
+    })
+  );
+
+  it("test with done should work", (done): void => {
+    let flag = false;
+    setTimeout(() => {
+      flag = true;
+      expect(flag).toBe(true);
+      done();
+    }, 100);
+  });
 });
 
-test.todo('a sample todo');
+test.todo("a sample todo");