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PHP methods and applications for automated testing and continuous delivery

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Release: 2023-06-18 15:18:01
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With the continuous updates and changes in software development methods, automated testing and continuous delivery have become the main keywords in today's software development process. Among them, PHP, as a scripting language widely used in web application development, also has a rich set of tools to achieve automated testing and continuous delivery, and with its own advantages of rapid iterative updates and development speed, it has become the first choice for enterprise development teams.

1. Automated testing tools

In PHP, automated testing has many different levels of implementation, such as unit testing, integration testing and functional testing. For this reason, we can use PHPUnit as the main testing framework for PHP to implement these tests. PHPUnit is a PHP testing framework created by Sebastian Bergmann. It can implement unit tests, integration tests and functional tests written in actual applications to ensure that the code can execute as expected during the development process. The PHPUnit test framework can automatically execute test cases and generate test reports, and can hook test results (pass/fail/error) into the CI/CD build framework as part of a manual or automatic pre-deployment check system. For example, we can place all test cases in a test folder and execute the test through a unit test:

<?php
require_once 'PHPUnit/Framework.php';

class SampleTest extends PHPUnit_Framework_TestCase
{
  public function testOnePlusOne() {
    $this->assertEquals(1+1,2);
  }  
}
?>
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2. Continuous delivery tools

In addition to automated testing tools , we also need to use appropriate continuous delivery tools to automate our deployment process. In PHP, we have many continuous delivery tools to choose from, such as Phing, Capistrano, Deployer, etc. We recommend using Phing, which is a flexible and powerful build system that can implement packaging, compression, deployment and other operations. Phing supports the Ant format familiar to most PHP developers, and when used with PHPUnit will automatically perform all tests and release packages will be automatically built and uploaded to an available web server. For example, we can use Phing through the following example:

<project name="Project" default="deploy">
  <target name="pre-build">
    <!-- your pre-build tasks here -->
  </target>
  
  <target name="build" depends="pre-build">
    <!-- your build tasks here -->
  </target>
  
  <target name="post-build" depends="build">
    <!-- your post-build tasks here -->
  </target>
  
  <target name="deploy" depends="post-build">
    <ftpdeploy 
      host="ftp.example.com" 
      user="username" 
      password="password"
      dir="/path/to/destination/folder"
      mode="ascii"
      depends="no"
      delete="no"
    >
      <fileset dir="${basedir}/build">
        <include name="**/*"/>
      </fileset>  
    </ftpdeploy>
  </target>
</project>
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The above code example indicates using Phing to package and upload the code stored in the "/build" directory of our build code to the FTP server.

3. CI/CD architecture application

Combining Phing and PHPUnit, we can use continuous integration (CI) for the development and testing of PHP web applications. At the same time, we can use the continuous delivery (CD) plug-in to automatically release the application to the production environment. We can choose to use many CI tools, such as Jenkins, TeamCity, Travis CI or GitLab CI, etc., which can easily implement CI/CD architecture applications. Among them, Jenkins is one of the most popular CI/CD platforms, and it has a very A good plug-in ecosystem can be used for automated testing, code inspection, code deployment, etc. An example of a Jenkins CI/CD build script is given below:

pipeline {
   agent any
  
   stages {
     stage('Build') {
       steps {
         sh 'composer install --no-dev'
         sh 'make build'
       }
     }
     stage('Test') {
       steps {
         sh 'make test'
         junit 'build/logs/*.xml'
       }
     }
     stage('Deploy') {
       steps {
         sh 'make deploy'
       }
     }
   }
}
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The above graphical script construction vividly demonstrates our complete ecosystem of continuous integration: first, the "Build" phase is executed. During the build process, we use composer to install the necessary web server and dependencies for the application; then execute the "Test" phase, during which we run our unit tests, coverage checks, and code standards checks, and store the test results in a JUnit test report; and finally Execute the "Deploy" phase, and deploy the application to the production server by calling the Phing file during the deployment process.

To sum up, by using PHPUnit, Phing and Jenkins, we can implement a complete set of PHP automated testing, continuous integration/continuous delivery architecture applications. This method is widely used and plays an important role in the development and deployment of PHP web applications, providing effective support for the effective implementation of various functions in processes such as automated testing and continuous integration/continuous delivery.

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source:php.cn
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