What
is e2e (end-to-end) Testing?
The End to End Testing is used to testing the
entire application looks like -
ü All
User Interactions
ü All
Service Calls
ü Authentication/Authorization
of app
ü Everything
of App
ü And
so on.
This is the actual testing of your apps. It is
fast action.
Unit testing and Integrations testing will do as
fake calls but e2e testing is done
with your actual Services and APIs calls.
Test
functions–
ü describe
– Test suit (just a function)
ü it - The spec or test
ü expect
- Expected outcome.
Triple
Rule of Testing –
ü Arrange
- Create and Initialize the Components
ü Act
- Invoke the Methods/Functions of Components
ü Assert
- Assert the expected outcome/behaviour
Sample
Test example -
app.po.ts –
import
{ browser, by,
element } from
'protractor';
export
class AppPage
{
navigateTo() {
return browser.get('/');
}
getParagraphText() {
return element(by.css('app-root
h1')).getText();
}
}
app.e2e-spec.ts –
import
{ AppPage } from
'./app.po';
describe('my-app
App', () =>
{
let page:
AppPage;
beforeEach(() =>
{
page = new
AppPage();
});
it('should display
welcome message', () =>
{
page.navigateTo();
expect(page.getParagraphText()).toEqual('Welcome
to app!');
});
});
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Anil Singh is an author, tech blogger, and software programmer. Book writing, tech blogging is something do extra and Anil love doing it. For more detail, kindly refer to this link..
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