How to use the Hyperf framework for unit testing

How to use the Hyperf framework for unit testing

Overview:
Unit testing is an important part of software development, it can ensure code quality and functional correctness . Hyperf is a high-performance framework developed based on Swoole extension. It provides a complete set of testing tools and environment to facilitate our unit testing. This article will introduce how to use the Hyperf framework for unit testing and give some specific code examples.

1. Environment preparation
Before starting unit testing, we need to ensure that the Hyperf framework is correctly installed and configured. You can install the Hyperf framework through the composer command and select the corresponding components and plug-ins. You can create a Hyperf project through the following command:

$ composer create-project hyperf/hyperf-skeleton my-project

After the installation is complete, we can enter the project root directory and use the following command to start the Hyperf server:

$ php bin/hyperf.php start

2. Test framework selection
Hyperf The framework has built-in PHPUnit as the default testing framework, and you can use PHPUnit directly for unit testing. At the same time, Hyperf also provides some convenient auxiliary functions and interfaces for us to use.

3. Write test cases
In the Hyperf framework, we can place the test case class in the tests directory and name it ending with Test.php. The following takes a simple UserController as an example to demonstrate how to write test cases.

<?php

declare(strict_types=1);

namespace AppTests;

use HyperfTestingServer;
use PHPUnitFrameworkTestCase;

class UserControllerTest extends TestCase
{
    use Server;

    public function testUserList()
    {
        $response = $this->get('/user/list');
        $this->assertSame(200, $response->getStatusCode());
        $this->assertIsArray($response->json());
        $this->assertArrayHasKey('data', $response->json());
    }

    // 其他测试方法...
}

In the above example, we used the HyperfTestingServer trait built into the Hyperf framework to start the test server and handle requests. Then, we can use some of PHPUnit's assertion methods to verify the correctness of the returned results.

4. Run the unit test
After writing the test case, we can use the following command to run the unit test:

$ phpunit

If everything is normal, the test results and coverage report will be displayed .

5. Advanced usage
In addition to the above basic usage, the Hyperf framework also provides more advanced unit testing functions and auxiliary tools, such as database mock and HTTP client testing. Some specific sample codes are given below:

1. Use database mock

<?php

declare(strict_types=1);

namespace AppTests;

use AppModelUser;
use HyperfDbConnectionDb;
use HyperfTestingServer;
use PHPUnitFrameworkTestCase;

class UserControllerTest extends TestCase
{
    use Server;

    protected function setUp(): void
    {
        parent::setUp();

        // 创建数据库mock
        Db::shouldReceive('table')->andReturn(User::query());
    }

    public function testUserList()
    {
        $response = $this->get('/user/list');
        $this->assertSame(200, $response->getStatusCode());
        $this->assertIsArray($response->json());
        $this->assertArrayHasKey('data', $response->json());
    }

    // 其他测试方法...
}

2. Use HTTP client test

<?php

declare(strict_types=1);

namespace AppTests;

use HyperfTestingServer;
use HyperfUtilsApplicationContext;
use HyperfUtilsCoroutine;
use Mockery;
use PHPUnitFrameworkTestCase;

class UserControllerTest extends TestCase
{
    use Server;

    public function testUserInfo()
    {
        $container = ApplicationContext::getContainer();
        $client = Mockery::mock('HyperfContractStdoutLoggerInterface');
        $client->shouldReceive('info')
            ->once()
            ->with(Mockery::type('string'))
            ->andReturnNull();
        $container->set('logger', $client);

        $response = $this->get('/user/info');
        $this->assertSame(200, $response->getStatusCode());
        $this->assertIsArray($response->json());
        $this->assertArrayHasKey('data', $response->json());
    }

    // 其他测试方法...
}

Passed From the above sample code, you can learn how to use the Hyperf framework for unit testing and simulate database and HTTP requests through some advanced features. Of course, this is just a brief introduction. The actual test scenario may be more complex and needs to be used flexibly according to your own needs.

Conclusion
Unit testing is an important means to ensure code quality and functional correctness. The Hyperf framework provides us with a complete set of testing tools and environments, which is very convenient and fast. I hope this article can be helpful to you when using Hyperf for unit testing. If you have any questions or suggestions, please leave a message for discussion. Good luck with your unit testing with the Hyperf framework!

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