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Using PHP WebDriver to implement data-driven automated testing

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2023-06-15 23:37:53816browse

In modern software development, automated testing has become an indispensable part. It can help developers test software quickly and accurately, thereby improving development efficiency and software quality. In automated testing, data-driven testing is a commonly used testing technique that can make testing more stable and repeatable. In PHP development, PHP WebDriver can help us implement data-driven automated testing.

PHP WebDriver is a PHP library that can interact with Selenium WebDriver to control the browser. Selenium WebDriver is a popular automated testing framework that supports multiple programming languages, including Java, Python, Ruby, and JavaScript. Using PHP WebDriver, we can use PHP to write automated test scripts to achieve automated testing. In this article, we will introduce how to use PHP WebDriver to implement data-driven automated testing.

Implementing data-driven automated testing requires the following steps:

  1. Prepare test data: Test data can be data stored in Excel or CSV files, or in a database . In this article, we will use CSV files to store test data.
  2. Write test cases: Test cases are specific test steps, including opening web pages, entering data, clicking buttons, etc. We will use PHP to write test cases and implement test case execution using PHP WebDriver.
  3. Run the test cases: We will use the PHPUnit framework to run the test cases.

Below we will introduce in detail how to implement data-driven automated testing.

  1. Preparing test data

We will use CSV files to store test data. A CSV file is a simple spreadsheet format that can be created and edited with a text editor or software such as Excel. A CSV file contains multiple rows and columns, each column separated by commas. The following is a simple CSV file example:

username,password
user1,password1
user2,password2
user3,password3

In this example, we will test the verification of username and password. The file contains three test data, each test data contains two columns: username and password.

  1. Writing test cases

We will use the PHPUnit framework to write test cases and use PHP WebDriver to implement test case execution.

First, we need to install PHPUnit and PHP WebDriver. PHPUnit can be installed using Composer, and PHP WebDriver can be downloaded from GitHub and then installed using Composer. After installing PHPUnit and PHP WebDriver, we can start writing test cases.

First, we need to create a test case class that inherits PHPUnitFrameworkTestCase, for example:

<?php

use PHPUnitFrameworkTestCase;

class LoginTest extends TestCase
{
    public function testLogin()
    {

    }
}

In this test case class, we can execute the test through the testLogin method.

We need to use PHP WebDriver in the testLogin method to implement the steps of the test case. Here is an example:

public function testLogin()
{
    $host = 'http://localhost:4444/wd/hub';
    $capabilities = DesiredCapabilities::chrome();

    $driver = RemoteWebDriver::create($host, $capabilities);

    $driver->get('https://example.com');

    $username_field = $driver->findElement(WebDriverBy::name('username'));
    $password_field = $driver->findElement(WebDriverBy::name('password'));
    $submit_button = $driver->findElement(WebDriverBy::name('submit'));

    $username = 'user1';
    $password = 'password1';

    $username_field->sendKeys($username);
    $password_field->sendKeys($password);
    $submit_button->click();

    $result = $driver->getTitle();
    $expected = 'Welcome to Example.com';

    $this->assertSame($expected, $result);

    $driver->quit();
}

In this example, we use Chrome browser to execute the test case. First, we need to create a RemoteWebDriver object and then use the get method to open the web page. Next, we read the username and password from the CSV file, enter them into the web page, and click the submit button. Finally, we can use the assertSame method to check whether the test results meet expectations.

  1. Run the test case

After completing the test case writing, we can use PHPUnit to run the test. We can enter the directory where the test case is located in the terminal, and then execute the following command to run the test:

vendor/bin/phpunit LoginTest.php

After running the test, PHPUnit will output the test results.

Summary:

In this article, we introduced how to use PHP WebDriver to implement data-driven automated testing. We prepare the test data through CSV files and execute the test cases using PHP WebDriver. Finally, we can use PHPUnit to run the test and check that the test results match expectations. With this approach, we can achieve efficient, stable, and repeatable automated testing.

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