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README.md

Codeception Extension for Yii 2

This extension provides Codeception integration for the Yii Framework 2.0.

It provides classes that help with testing with codeception:

  • a base class for unit-tests: yii\codeception\TestCase;
  • a base class for codeception page-objects: yii\codeception\BasePage.

Installation

The preferred way to install this extension is through composer.

Either run

php composer.phar require --prefer-dist yiisoft/yii2-codeception "*"

or add

"yiisoft/yii2-codeception": "*"

to the require section of your composer.json.

Usage

When using codeception page-objects they have some similar code, this code was extracted and put into the BasePage class to reduce code duplication. Simply extend your page object from this class, like it is done in yii2-app-basic and yii2-app-advanced boilerplates.

For unit testing there is a TestCase class which holds some common features like application creation before each test and application destroy after each test. You can configure a mock application using this class. TestCase is extended from Codeception\TestCase\Case so all methods and assertions are available. You may use codeception modules and fire events in your test, just use methods:

<?php
#in your unit-test
$this->getModule('CodeHelper'); #or some other module

You also can use all guy methods by accessing guy instance like:

<?php
$this->codeGuy->someMethodFromModule();

to fire event do this:

<?php
use Codeception\Event\TestEvent;

public function testSomething()
{
	$this->fire('myevent', new TestEvent($this));
}

this event can be catched in modules and helpers. If your test is in the group, then event name will be followed by the groupname, for example myevent.somegroup.

Execution of special tests methods is (for example on UserTest class):

tests\unit\models\UserTest::setUpBeforeClass();

	tests\unit\models\UserTest::_before();

		tests\unit\models\UserTest::setUp();

			tests\unit\models\UserTest::testSomething();

		tests\unit\models\UserTest::tearDown();

	tests\unit\models\UserTest::_after();

tests\unit\models\UserTest::tearDownAfterClass();

If you use special methods dont forget to call its parent.

<?php

SomeConsoleTest extends \yii\codeception\TestCase
{
	// this is the config file to load as application config
	public static $applicationConfig = '@app/config/web.php';

	// this defines the application class to use for mock applications
	protected $applicationClass = 'yii\web\Application';
}

The $applicationConfig property may be set for all tests in a _bootstrap.php file like this:

<?php

yii\codeception\TestCase::$applicationConfig = yii\helpers\ArrayHelper::merge(
	require(__DIR__ . '/../../config/web.php'),
	require(__DIR__ . '/../../config/codeception/unit.php')
);

Don't forget that you have to include autoload and Yii class in the _bootstrap.php file.

You also can reconfigure some components for tests, for this purpose there is a $config property in the TestCase class.

<?php

SomeOtherTest extends \yii\codeception\TestCase
{
	public $config = [
		'components' => [
			'mail' => [
				'useFileTransport' => true,
			],
		]
	];
}

Because of Codeception buffers all output you can't make simple var_dump() in the TestCase, instead you need to use Codeception\Util\Debug::debug() function and then run test with --debug key, for example:

<?php

use Codeception\Util\Debug;

SomeDebugTest extends \yii\codeception\TestCase
{
	public function testSmth()
	{
		Debug::debug('some string');
		Debug::debug($someArray);
		Debug::debug($someObject);
	}

}

Then run command php codecept.phar run --debug unit/SomeDebugTest and you will see in output:

  some string

  Array
  (
      [0] => 1
      [1] => 2
      [2] => 3
      [3] => 4
      [4] => 5
  )
  
  yii\web\User Object
  (
      [identityClass] => app\models\User
      [enableAutoLogin] => 
      [loginUrl] => Array
          (
              [0] => site/login
          )
  
      [identityCookie] => Array
          (
              [name] => _identity
              [httpOnly] => 1
          )
  
      [authTimeout] => 
      [autoRenewCookie] => 1
      [idVar] => __id
      [authTimeoutVar] => __expire
      [returnUrlVar] => __returnUrl
      [_access:yii\web\User:private] => Array
          (
          )
  
      [_identity:yii\web\User:private] => 
      [_events:yii\base\Component:private] => 
      [_behaviors:yii\base\Component:private] => 
  )

For further instructions refer to the testing section in the Yii Definitive Guide.