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Laravel Development: How to use Laravel Dusk for end-to-end testing?

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2023-06-13 15:01:071251browse

As the complexity of modern web applications increases, testing has become a critical element of any successful project. Today, more and more developers and teams are looking for new tools and methods to improve code quality and test coverage. Laravel Dusk is a tool that can provide end-to-end testing (E2E) for Laravel applications. This article will introduce how to use it.

What is Laravel Dusk?

Laravel Dusk is an automated browser testing tool based on Chrome Driver and Facebook WebDriver. It can simulate user interactions and test the actual behavior of the application. Unlike traditional testing tools, it runs tests in a real browser, providing a more realistic testing experience.

In addition, Laravel Dusk also provides a simple and easy-to-use API and a test result report in a friendly format. It integrates seamlessly with the Laravel framework and is easy to deploy and run in a continuous integration system.

Using Laravel Dusk

  1. Installing Laravel Dusk

To use Laravel Dusk in a Laravel application, you first need to install it as a dependency. Install using the following command:

composer require --dev laravel/dusk
  1. Generate Dusk's installation script

Generate Dusk's installation script to set up the necessary test files and configuration:

php artisan dusk:install
  1. Start Test

Create your first test. Dusk test files are placed in the tests/Browser directory. Add a new test file and write the test code in it:

<?php

namespace TestsBrowser;

use IlluminateFoundationTestingDatabaseMigrations;
use LaravelDuskBrowser;
use TestsDuskTestCase;

class ExampleTest extends DuskTestCase
{
    /**
     * A basic browser test example.
     *
     * @return void
     */
    public function testBasicExample()
    {
        $this->browse(function (Browser $browser) {
            $browser->visit('/')
                    ->assertSee('Laravel');
        });
    }
}

As you can see, this test code is very simple. It uses the ->visit() expression to make the browser visit the home page, and the ->assertSee() expression to verify that it saw the exact text Laravel.

Note that before testing, you definitely need an application, which can be generated using the following command:

php artisan make:auth
  1. Run the test

The last step is to run the test . Run the following command to start the Laravel Dusk test suite:

php artisan dusk

If the test passes, it will output:

OK (1 test, 1 assertion)

If the test fails, it will output details about the failure and where the test failed.

Conclusion

Laravel Dusk provides an easy way to test Laravel applications end-to-end, running the tests in a real browser environment, providing a more realistic test experience. Additionally, it provides an easy-to-use API for testing and test result reports in a friendly format that is easy to deploy and run in a continuous integration system. If you are looking for a flexible and reliable testing tool for building web applications using Laravel, Laravel Dusk is definitely worth a try.

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