yii2/tests/unit/data/config.php

<?php

return array(
	//'appClass' => '\yii\web\Application',
	'appClass' => '\yii\console\Application',
    'databases' => array(
        'mysql' => array(
            'dsn' => 'mysql:host=127.0.0.1;dbname=yiitest',
            'username' => 'travis',
            'password' => '',
            'fixture' => __DIR__ . '/mysql.sql',
        ),
        'sqlite' => array(
            'dsn' => 'sqlite::memory:',
            'fixture' => __DIR__ . '/sqlite.sql',
        ),
    ),
);