<?php

namespace yiiunit;

use yii\helpers\ArrayHelper;

/**
 * This is the base class for all yii framework unit tests.
 */
abstract class TestCase extends \PHPUnit_Framework_TestCase
{
    public static $params;

    /**
     * Clean up after test.
     * By default the application created with [[mockApplication]] will be destroyed.
     */
    protected function tearDown()
    {
        parent::tearDown();
        $this->destroyApplication();
    }

    /**
     * Returns a test configuration param from /data/config.php
     * @param  string $name    params name
     * @param  mixed  $default default value to use when param is not set.
     * @return mixed  the value of the configuration param
     */
    public function getParam($name, $default = null)
    {
        if (static::$params === null) {
            static::$params = require(__DIR__ . '/data/config.php');
        }

        return isset(static::$params[$name]) ? static::$params[$name] : $default;
    }

    /**
     * Populates Yii::$app with a new application
     * The application will be destroyed on tearDown() automatically.
     * @param array  $config   The application configuration, if needed
     * @param string $appClass name of the application class to create
     */
    protected function mockApplication($config = [], $appClass = '\yii\console\Application')
    {
        static $defaultConfig = [
            'id' => 'testapp',
            'basePath' => __DIR__,
        ];
        $defaultConfig['vendorPath'] = dirname(dirname(__DIR__)) . '/vendor';

        new $appClass(ArrayHelper::merge($defaultConfig, $config));
    }

    /**
     * Destroys application in Yii::$app by setting it to null.
     */
    protected function destroyApplication()
    {
        \Yii::$app = null;
    }
}
