How to use Codeception with CakePHP?

CakePHP is an open source web application framework based on PHP that can help developers quickly build web applications. Codeception is a powerful testing framework that can help developers conduct automated testing. This article will introduce how to use Codeception for testing in CakePHP.

1. Install Codeception

First, you need to install Codeception. It can be installed through Composer and run the following command:

composer require --dev codeception/codeception

If you need other modules, you can install them as follows:

composer require --dev codeception/module-webdriver
composer require --dev codeception/module-db
composer require --dev codeception/module-asserts

2. Initialize Codeception

After installing Codeception, you need to execute the following command in the root directory of the CakePHP application to initialize Codeception:

vendor/bin/codecept init

After executing the command, there will be a series of interactive questions that need to be answered. For example, you need to select the type of test, the storage location of the test file, etc.

3. Writing tests

Codeception provides different test levels. In CakePHP, you can use functional tests to test whether the application behaves as expected. Functional testing simulates user interaction with the application, such as filling out forms, clicking links, etc. The following is a sample test:

<?php 
$I = new FunctionalTester($scenario);
$I->wantTo('ensure that login works');
$I->amOnPage('/');
$I->click('Login');
$I->seeCurrentUrlEquals('/users/login');
$I->fillField('username', 'testuser');
$I->fillField('password', 'testpass');
$I->click('Login');
$I->seeCurrentUrlEquals('/dashboard');
$I->see('Welcome, testuser');

The above sample test attempts to simulate user login and verify whether it is successful. Simulate the user's behavior through $I->amOnPage() and $I->click(), and then verify whether it meets expectations through $I->see() and $I->seeCurrentUrlEquals().

4. Run the test

After writing the test, you can use the following command to run the test:

vendor/bin/codecept run

If you want to run the specified test, you can use the following command :

vendor/bin/codecept run functional MyFirstTestCest

Among them, MyFirstTestCest is the name of the test file. If you only want to run a certain test method, you can use the following command:

vendor/bin/codecept run functional MyFirstTestCest:testLogin

where testLogin is the name of the test method.

5. Codeception and PHPUnit

CakePHP uses PHPUnit by default for unit testing. Codeception is also based on PHPUnit, so it can also be considered a testing method. The beauty of Codeception is that it makes writing, running, and managing tests easy.

If you need to use PHPUnit and Codeception in CakePHP at the same time, you can add the following code to the phpunit.xml file to run the Codeception test:

<testsuites>
    <testsuite name="cake">
        <directory>./tests/TestCase/</directory>
        <directory>./vendor/codeception/codeception/tests/unit/</directory>
    </testsuite>
</testsuites>

The above code will also be used when running the PHPUnit test. Includes running Codeception tests.

Summary

This article introduces how to use Codeception for testing in CakePHP. Codeception provides rich testing functions, such as functional testing, end-to-end testing, API testing, etc., which can help us test applications more comprehensively. At the same time, Codeception is simple to use and easy to get started, which can greatly improve testing efficiency.

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