diff --git a/.gitattributes b/.gitattributes
index 9cbc09b..6cdec7d 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -4,3 +4,5 @@
 /Robofile.php    export-ignore
 /*.md            export-ignore
 /*.yml           export-ignore
+/tests           export-ignore
+/.github         export-ignore
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d7ef845..d9c509e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,21 +27,7 @@ jobs:
     - name: Install dependencies
       run: composer install --prefer-dist --no-progress --no-interaction --no-suggest
 
-    - name: Checkout Yii2
-      uses: actions/checkout@v2
-      with:
-        repository: Codeception/yii2-tests
-        path: framework-tests
-
-    - name: Install Yii2
-      run: |
-        composer require --no-update codeception/module-asserts
-        composer require --no-update codeception/module-filesystem
-        composer require --no-update codeception/codeception
-        composer update --no-dev --prefer-dist --no-interaction
-      working-directory: framework-tests
-
     - name: Run test suite
       run: |
-        php vendor/bin/codecept build -c framework-tests
-        php vendor/bin/codecept run -c framework-tests
+        php vendor/bin/codecept build
+        php vendor/bin/codecept run
diff --git a/.gitignore b/.gitignore
index 5501822..241050f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 /.idea/
 /vendor/
 /composer.lock
-/framework-tests
\ No newline at end of file
+tests/_support
+tests/_output
+tests/cases/yii2-app-advanced/_data/db.sqlite
diff --git a/codeception.yml b/codeception.yml
new file mode 100644
index 0000000..9143f3d
--- /dev/null
+++ b/codeception.yml
@@ -0,0 +1,14 @@
+paths:
+    tests: tests
+    output: tests/_output
+    data: tests/_data
+    support: tests/_support
+    envs: tests/_envs
+modules:
+    - Asserts
+bootstrap: bootstrap.php
+settings:
+    colors: true
+    memory_limit: 1024M
+include:
+    - tests/cases/*
diff --git a/composer.json b/composer.json
index 3fb5f18..5e6d9d2 100644
--- a/composer.json
+++ b/composer.json
@@ -22,10 +22,30 @@
         "codeception/lib-innerbrowser": "^1.0",
         "codeception/codeception": "^4.0"
     },
+    "require-dev": {
+        "yiisoft/yii2": "dev-master",
+        "yiisoft/yii2-app-advanced": "dev-master",
+        "codeception/verify": "<2",
+        "codemix/yii2-localeurls": "^1.7",
+        "codeception/module-asserts": "^1.3",
+        "codeception/module-filesystem": "^1.0"
+    },
     "autoload":{
         "classmap": ["src/"]
     },
+    "autoload-dev": {
+        "classmap": [
+            "vendor/yiisoft/yii2/Yii.php",
+            "tests/cases"
+        ]
+    },
     "config": {
         "classmap-authoritative": true
-    }
+    },
+    "repositories": [
+        {
+            "type": "composer",
+            "url": "https://asset-packagist.org"
+        }
+    ]
 }
diff --git a/tests/_data/.gitkeep b/tests/_data/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..71170fb
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,10 @@
+<?php
+defined('YII_DEBUG') || define('YII_DEBUG', true);
+defined('YII_ENV') || define('YII_ENV', 'test');
+
+Yii::$container = new \yii\di\Container();
+
+$link = __DIR__ . '/../vendor/yiisoft/yii2-app-advanced/vendor';
+if (!file_exists($link) && !symlink(__DIR__ . '/../vendor', $link)) {
+    die('failed to create symlink');
+}
diff --git a/tests/cases/closeConnections/codeception.yml b/tests/cases/closeConnections/codeception.yml
new file mode 100644
index 0000000..fe8df06
--- /dev/null
+++ b/tests/cases/closeConnections/codeception.yml
@@ -0,0 +1,12 @@
+paths:
+    tests: .
+    log: ../../_output
+    data: _data
+    support: ../../_support
+namespace: tests\
+modules:
+  config:
+    Yii2:
+      configFile: config.php
+      transaction: false
+      cleanup: true
\ No newline at end of file
diff --git a/tests/cases/closeConnections/config.php b/tests/cases/closeConnections/config.php
new file mode 100644
index 0000000..99e2245
--- /dev/null
+++ b/tests/cases/closeConnections/config.php
@@ -0,0 +1,12 @@
+<?php
+return [
+    'id' => 'Simple',
+    'basePath' => __DIR__,
+
+    'components' => [
+        'db' => [
+            'class' => yii\db\Connection::class,
+            'dsn' => 'sqlite:' . \tests\helpers\SqlliteHelper::getTmpFile(),
+        ],
+    ],
+];
\ No newline at end of file
diff --git a/tests/cases/closeConnections/fixtures/EmptyFixture.php b/tests/cases/closeConnections/fixtures/EmptyFixture.php
new file mode 100644
index 0000000..c8aeae6
--- /dev/null
+++ b/tests/cases/closeConnections/fixtures/EmptyFixture.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace tests\fixtures;
+
+use yii\test\DbFixture;
+
+class EmptyFixture extends DbFixture
+{
+    public function load()
+    {
+    }
+
+    public function unload()
+    {
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/closeConnections/functional.suite.yml b/tests/cases/closeConnections/functional.suite.yml
new file mode 100644
index 0000000..b189d50
--- /dev/null
+++ b/tests/cases/closeConnections/functional.suite.yml
@@ -0,0 +1,5 @@
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
\ No newline at end of file
diff --git a/tests/cases/closeConnections/functional/FixturesCest.php b/tests/cases/closeConnections/functional/FixturesCest.php
new file mode 100644
index 0000000..1dea8f4
--- /dev/null
+++ b/tests/cases/closeConnections/functional/FixturesCest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace tests\closeConnections;
+
+use Codeception\Example;
+use tests\fixtures\EmptyFixture;
+use tests\FunctionalTester;
+use tests\helpers\SqlliteHelper;
+
+class FixturesCest
+{
+    public function _fixtures()
+    {
+        return [
+            [
+                'class' => EmptyFixture::class,
+            ],
+        ];
+    }
+
+    protected function numberProvider()
+    {
+        return array_pad([], 5, ['count' => 0]);
+    }
+
+    /**
+     * @param FunctionalTester $I
+     * @dataProvider numberProvider
+     */
+    public function NoConnections(FunctionalTester $I, Example $example)
+    {
+        $I->assertEquals(SqlliteHelper::connectionCount(), $example['count']);
+    }
+
+}
\ No newline at end of file
diff --git a/tests/cases/closeConnections/functional/FixturesInBeforeCest.php b/tests/cases/closeConnections/functional/FixturesInBeforeCest.php
new file mode 100644
index 0000000..21de51d
--- /dev/null
+++ b/tests/cases/closeConnections/functional/FixturesInBeforeCest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace tests\closeConnections;
+
+use Codeception\Example;
+use tests\fixtures\EmptyFixture;
+use tests\FunctionalTester;
+use tests\helpers\SqlliteHelper;
+
+class FixturesInBeforeCest
+{
+    public function _before(FunctionalTester $I)
+    {
+        $I->haveFixtures([
+            [
+                'class' => EmptyFixture::class,
+            ],
+        ]);
+    }
+
+    protected function numberProvider()
+    {
+        return array_pad([], 5, ['count' => 1]);
+    }
+
+    /**
+     * @param FunctionalTester $I
+     * @dataProvider numberProvider
+     */
+    public function NoConnections(FunctionalTester $I, Example $example)
+    {
+        $I->assertEquals(SqlliteHelper::connectionCount(), $example['count']);
+    }
+
+}
\ No newline at end of file
diff --git a/tests/cases/closeConnections/functional/NoFixturesCest.php b/tests/cases/closeConnections/functional/NoFixturesCest.php
new file mode 100644
index 0000000..245be50
--- /dev/null
+++ b/tests/cases/closeConnections/functional/NoFixturesCest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace tests\closeConnections;
+
+use Codeception\Example;
+use tests\FunctionalTester;
+use tests\helpers\SqlliteHelper;
+
+class NoFixturesCest
+{
+
+    protected function numberProvider()
+    {
+        return array_pad([], 5, ['count' => 0]);
+    }
+
+    /**
+     * @param FunctionalTester $I
+     * @dataProvider numberProvider
+     */
+    public function NoConnections(FunctionalTester $I, Example $example)
+    {
+        $I->assertEquals(SqlliteHelper::connectionCount(), $example['count']);
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/closeConnections/helpers/SqlliteHelper.php b/tests/cases/closeConnections/helpers/SqlliteHelper.php
new file mode 100644
index 0000000..cf8c460
--- /dev/null
+++ b/tests/cases/closeConnections/helpers/SqlliteHelper.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace tests\helpers;
+
+class SqlliteHelper
+{
+    protected static $temp_name;
+
+    public static function getTmpFile()
+    {
+        if (empty(self::$temp_name)) {
+            self::$temp_name = tempnam(null, '/file0');
+        }
+        return self::$temp_name;
+    }
+
+    public static function connectionCount()
+    {
+        $path = self::$temp_name;
+        $count = shell_exec("lsof -w {$path} | grep {$path} | wc -l");
+        return (int)$count;
+    }
+
+    public static function debug()
+    {
+        $path = self::$temp_name;
+        $cmd = "lsof -w {$path}";
+        codecept_debug("Executing : $cmd");
+        codecept_debug(shell_exec($cmd));
+    }
+
+}
\ No newline at end of file
diff --git a/tests/cases/closeConnectionsNoCleanup/codeception.yml b/tests/cases/closeConnectionsNoCleanup/codeception.yml
new file mode 100644
index 0000000..1bfb23c
--- /dev/null
+++ b/tests/cases/closeConnectionsNoCleanup/codeception.yml
@@ -0,0 +1,12 @@
+paths:
+    tests: .
+    log: ../../_output
+    data: _data
+    support: ../../_support
+namespace: tests\
+modules:
+  config:
+    Yii2:
+      configFile: config.php
+      transaction: false
+      cleanup: false
\ No newline at end of file
diff --git a/tests/cases/closeConnectionsNoCleanup/config.php b/tests/cases/closeConnectionsNoCleanup/config.php
new file mode 100644
index 0000000..99e2245
--- /dev/null
+++ b/tests/cases/closeConnectionsNoCleanup/config.php
@@ -0,0 +1,12 @@
+<?php
+return [
+    'id' => 'Simple',
+    'basePath' => __DIR__,
+
+    'components' => [
+        'db' => [
+            'class' => yii\db\Connection::class,
+            'dsn' => 'sqlite:' . \tests\helpers\SqlliteHelper::getTmpFile(),
+        ],
+    ],
+];
\ No newline at end of file
diff --git a/tests/cases/closeConnectionsNoCleanup/functional.suite.yml b/tests/cases/closeConnectionsNoCleanup/functional.suite.yml
new file mode 100644
index 0000000..b189d50
--- /dev/null
+++ b/tests/cases/closeConnectionsNoCleanup/functional.suite.yml
@@ -0,0 +1,5 @@
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
\ No newline at end of file
diff --git a/tests/cases/closeConnectionsNoCleanup/functional/FixturesCest.php b/tests/cases/closeConnectionsNoCleanup/functional/FixturesCest.php
new file mode 100644
index 0000000..025a423
--- /dev/null
+++ b/tests/cases/closeConnectionsNoCleanup/functional/FixturesCest.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace tests\closeConnectionsNoCleanup;
+
+use tests\FunctionalTester;
+use tests\fixtures\EmptyFixture;
+use tests\helpers\SqlliteHelper;
+
+class FixturesCest
+{
+    public function _fixtures()
+    {
+        return [
+            [
+                'class' => EmptyFixture::class,
+            ],
+        ];
+    }
+
+    public function NoConnections1(FunctionalTester $I)
+    {
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(0, $count);
+    }
+
+    public function NoConnections2(FunctionalTester $I)
+    {
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(0, $count);
+    }
+
+    public function NoConnections3(FunctionalTester $I)
+    {
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(0, $count);
+    }
+
+}
\ No newline at end of file
diff --git a/tests/cases/closeConnectionsNoCleanup/functional/FixturesInBeforeCest.php b/tests/cases/closeConnectionsNoCleanup/functional/FixturesInBeforeCest.php
new file mode 100644
index 0000000..acf6031
--- /dev/null
+++ b/tests/cases/closeConnectionsNoCleanup/functional/FixturesInBeforeCest.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace tests\closeConnectionsNoCleanup;
+
+use tests\FunctionalTester;
+use tests\fixtures\EmptyFixture;
+use tests\helpers\SqlliteHelper;
+
+class FixturesInBeforeCest
+{
+    public function _before(FunctionalTester $I)
+    {
+        $I->haveFixtures([
+            [
+                'class' => EmptyFixture::class,
+            ],
+        ]);
+    }
+
+    public function OnlyOneConnection1(FunctionalTester $I)
+    {
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(1, $count);
+    }
+
+    public function OnlyOneConnection2(FunctionalTester $I)
+    {
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(1, $count);
+    }
+
+    public function OnlyOneConnection3(FunctionalTester $I)
+    {
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(1, $count);
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/closeConnectionsNoCleanup/functional/ThirdCest.php b/tests/cases/closeConnectionsNoCleanup/functional/ThirdCest.php
new file mode 100644
index 0000000..0cbc42e
--- /dev/null
+++ b/tests/cases/closeConnectionsNoCleanup/functional/ThirdCest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace tests\closeConnectionsNoCleanup;
+
+use tests\FunctionalTester;
+use tests\fixtures\EmptyFixture;
+use tests\helpers\SqlliteHelper;
+
+class ThirdCest
+{
+    public function NoConnections1(FunctionalTester $I)
+    {
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(0, $count);
+    }
+
+    public function OnlyOneConnection2(FunctionalTester $I)
+    {
+        $I->haveFixtures([
+            [
+                'class' => EmptyFixture::class,
+            ],
+        ]);
+
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(1, $count);
+    }
+
+    public function OnlyOneConnection3(FunctionalTester $I)
+    {
+        $I->haveFixtures([
+            [
+                'class' => EmptyFixture::class,
+            ],
+        ]);
+
+        $count = SqlliteHelper::connectionCount();
+        $I->assertEquals(1, $count);
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/events/codeception.yml b/tests/cases/events/codeception.yml
new file mode 100644
index 0000000..caf01d1
--- /dev/null
+++ b/tests/cases/events/codeception.yml
@@ -0,0 +1,15 @@
+paths:
+    tests: .
+    log: ../../_output
+    data: _data
+    support: ../../_support
+namespace: tests\
+extensions:
+    enabled:
+        - Codeception\Extension\RunFailed
+modules:
+  config:
+    Yii2:
+      configFile: config.php
+      transaction: true
+      cleanup: true
\ No newline at end of file
diff --git a/tests/cases/events/config.php b/tests/cases/events/config.php
new file mode 100644
index 0000000..09869fd
--- /dev/null
+++ b/tests/cases/events/config.php
@@ -0,0 +1,22 @@
+<?php
+return [
+    'id' => 'Response Events',
+    'basePath' => __DIR__,
+    'bootstrap' => [
+        function(\yii\web\Application $application) {
+            $application->response->on(\yii\web\Response::EVENT_BEFORE_SEND, function($event) use ($application) {
+                $application->trigger('responseBeforeSendBootstrap');
+            });
+        }
+    ],
+    'components' => [
+        'request' => [
+            'cookieValidationKey' => 'secret'
+        ],
+        'response' => [
+            'on beforeSend' => function() {
+                \Yii::$app->trigger('responseBeforeSendConfig');
+            }
+        ]
+    ]
+];
\ No newline at end of file
diff --git a/tests/cases/events/controllers/SiteController.php b/tests/cases/events/controllers/SiteController.php
new file mode 100644
index 0000000..abcc66a
--- /dev/null
+++ b/tests/cases/events/controllers/SiteController.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace app\controllers;
+use yii\web\Controller;
+
+class SiteController extends Controller
+{
+
+    public function actionIndex()
+    {
+
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/events/functional.suite.yml b/tests/cases/events/functional.suite.yml
new file mode 100644
index 0000000..d2d1a2f
--- /dev/null
+++ b/tests/cases/events/functional.suite.yml
@@ -0,0 +1,11 @@
+# Codeception Test Suite Configuration
+#
+# Suite for functional tests
+# Emulate web requests and make application process them
+# Include one of framework modules (Symfony2, Yii2, Laravel5) to use it
+# Remove this suite if you don't use frameworks
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
\ No newline at end of file
diff --git a/tests/cases/events/functional/ResponseCest.php b/tests/cases/events/functional/ResponseCest.php
new file mode 100644
index 0000000..4d7a2d3
--- /dev/null
+++ b/tests/cases/events/functional/ResponseCest.php
@@ -0,0 +1,83 @@
+<?php
+namespace tests;
+
+use Codeception\Lib\Connector\Yii2;
+use yii\base\Event;
+
+class ResponseCest
+{
+
+    public function testAfterSend(FunctionalTester $I)
+    {
+        $sources = [];
+        \Yii::$app->on('responseBeforeSendConfig', function(Event $event) use (&$sources) {
+            $sources[] = 'config';
+        });
+        \Yii::$app->on('responseBeforeSendBootstrap', function(Event $event) use (&$sources) {
+            $sources[] = 'bootstrap';
+        });
+        $I->assertEmpty($sources);
+        $I->amOnPage('/');
+        $I->assertEquals(['config', 'bootstrap'], $sources);
+
+        $sources = [];
+        $I->amOnPage('/');
+        $I->assertEquals(['config', 'bootstrap'], $sources);
+
+    }
+
+    public function testAfterSendWithRecreate(FunctionalTester $I, \Codeception\Module\Yii2 $module)
+    {
+        $module->_reconfigure([
+            'responseCleanMethod' => Yii2::CLEAN_RECREATE
+        ]);
+        $module->client->startApp();
+        $sources = [];
+        \Yii::$app->on('responseBeforeSendConfig', function(Event $event) use (&$sources) {
+            $sources[] = 'config';
+        });
+        \Yii::$app->on('responseBeforeSendBootstrap', function(Event $event) use (&$sources) {
+            $sources[] = 'bootstrap';
+        });
+        $I->assertEmpty($sources);
+        $I->amOnPage('/');
+        $I->assertEquals(['config', 'bootstrap'], $sources);
+
+        $sources = [];
+        $I->amOnPage('/');
+
+        // The module should fall back to the CLEAN_CLEAR method and keep event handlers intact.
+        $I->assertEquals(['config', 'bootstrap'], $sources);
+
+    }
+
+    public function testAfterSendWithForcedRecreate(FunctionalTester $I, \Codeception\Module\Yii2 $module)
+    {
+        $module->_reconfigure([
+            'responseCleanMethod' => Yii2::CLEAN_FORCE_RECREATE
+        ]);
+        $module->client->startApp();
+        $sources = [];
+        \Yii::$app->on('responseBeforeSendConfig', function(Event $event) use (&$sources) {
+            $sources[] = 'config';
+        });
+        \Yii::$app->on('responseBeforeSendBootstrap', function(Event $event) use (&$sources) {
+            $sources[] = 'bootstrap';
+        });
+
+        $I->assertEmpty($sources);
+        $I->amOnPage('/');
+
+        // We recreated the response component, since it has an event handler in its config
+        // that event handler will still work.
+        $I->assertEquals(['config'], $sources);
+
+        $sources = [];
+        $I->amOnPage('/');
+
+        // We recreated the response component, since it has an event handler in its config
+        // that event handler will still work.
+        $I->assertEquals(['config'], $sources);
+
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/locale-urls/codeception.yml b/tests/cases/locale-urls/codeception.yml
new file mode 100644
index 0000000..caf01d1
--- /dev/null
+++ b/tests/cases/locale-urls/codeception.yml
@@ -0,0 +1,15 @@
+paths:
+    tests: .
+    log: ../../_output
+    data: _data
+    support: ../../_support
+namespace: tests\
+extensions:
+    enabled:
+        - Codeception\Extension\RunFailed
+modules:
+  config:
+    Yii2:
+      configFile: config.php
+      transaction: true
+      cleanup: true
\ No newline at end of file
diff --git a/tests/cases/locale-urls/config.php b/tests/cases/locale-urls/config.php
new file mode 100644
index 0000000..101c377
--- /dev/null
+++ b/tests/cases/locale-urls/config.php
@@ -0,0 +1,31 @@
+<?php
+
+use codemix\localeurls\UrlManager;
+
+return [
+    'id' => 'Simple',
+    'basePath' => __DIR__,
+    'controllerNamespace' => 'app\localeurls\controllers',
+    'components' => [
+        'request' => [
+            'enableCsrfValidation' => false,
+            'cookieValidationKey' => 'test'
+        ],
+        'urlManager' => [
+            'class' => UrlManager::class,
+            'enablePrettyUrl' => true,
+            'showScriptName' => false,
+            'enableLanguagePersistence' => false,
+            'enableLocaleUrls' => true,
+            'languages' => ['nl', 'en']
+        ]
+    ],
+    'on beforeRequest' => function(\yii\base\Event $event) {
+        $app = $event->sender;
+        if ($app->has('urlManager', true)) {
+            $config = $app->getComponents()['urlManager'];
+            \Codeception\Util\Debug::debug('Resetting url manager: ' . print_r($config, true));
+            $app->set('urlManager', $config);
+        }
+    }
+];
\ No newline at end of file
diff --git a/tests/cases/locale-urls/controllers/SiteController.php b/tests/cases/locale-urls/controllers/SiteController.php
new file mode 100644
index 0000000..d68f82a
--- /dev/null
+++ b/tests/cases/locale-urls/controllers/SiteController.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace app\localeurls\controllers;
+use yii\helpers\Url;
+use yii\web\Controller;
+
+class SiteController extends Controller
+{
+
+    public function actionForm()
+    {
+        $action = Url::to(['site/post']);
+        return <<<HTML
+<html>
+<body>
+<form method="post" action="$action">
+<input name="test" type="text" id="test">
+<input type="submit" id="submit">Submit</input>
+</form>
+</body>
+</html>
+
+
+HTML;
+
+    }
+
+    public function actionPost()
+    {
+        \Yii::$app->response->statusCode = 201;
+        return print_r(\Yii::$app->request->bodyParams, true);
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/locale-urls/functional.suite.yml b/tests/cases/locale-urls/functional.suite.yml
new file mode 100644
index 0000000..754807a
--- /dev/null
+++ b/tests/cases/locale-urls/functional.suite.yml
@@ -0,0 +1,13 @@
+# Codeception Test Suite Configuration
+#
+# Suite for functional tests
+# Emulate web requests and make application process them
+# Include one of framework modules (Symfony2, Yii2, Laravel5) to use it
+# Remove this suite if you don't use frameworks
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
+steps:
+    - Codeception\Step\ConditionalAssertion
diff --git a/tests/cases/locale-urls/functional/LocaleUrlCest.php b/tests/cases/locale-urls/functional/LocaleUrlCest.php
new file mode 100644
index 0000000..a945cb4
--- /dev/null
+++ b/tests/cases/locale-urls/functional/LocaleUrlCest.php
@@ -0,0 +1,40 @@
+<?php
+namespace tests;
+
+use yii\web\Application;
+
+class LocaleUrlCest
+{
+
+    public function testInstantiation(FunctionalTester $I)
+    {
+        $I->assertInstanceOf(Application::class, \Yii::$app);
+    }
+
+    public function testMultipleGet(FunctionalTester $I)
+    {
+        $I->amOnPage('/en/site/form');
+        $I->amOnPage('/en/site/form');
+    }
+    public function testFormSubmit(FunctionalTester $I)
+    {
+        $I->amOnPage(['site/form']);
+        $I->seeResponseCodeIs(200);
+
+        $I->fillField('#test', 'test');
+        $I->click('#submit');
+        $I->canSeeResponseCodeIs(201);
+    }
+
+    public function testFormSubmit2(FunctionalTester $I)
+    {
+        $I->amOnPage('/en/site/form');
+        $I->seeResponseCodeIs(200);
+        $I->submitForm('form', [
+            'login-form[login]' => 'user',
+            'login-form[password]' => 'test',
+        ]);
+        $I->canSeeResponseCodeIs(201);
+    }
+
+}
\ No newline at end of file
diff --git a/tests/cases/mock-mailer/codeception.yml b/tests/cases/mock-mailer/codeception.yml
new file mode 100644
index 0000000..b0d1647
--- /dev/null
+++ b/tests/cases/mock-mailer/codeception.yml
@@ -0,0 +1,14 @@
+paths:
+    tests: .
+    log: ../../_output
+    data: _data
+    support: ../../_support
+namespace: tests\
+extensions:
+    enabled:
+        - Codeception\Extension\RunFailed
+modules:
+  config:
+    Yii2:
+      configFile: config.php
+      recreateApplication: true
diff --git a/tests/cases/mock-mailer/config.php b/tests/cases/mock-mailer/config.php
new file mode 100644
index 0000000..e6bd0ae
--- /dev/null
+++ b/tests/cases/mock-mailer/config.php
@@ -0,0 +1,15 @@
+<?php
+return [
+    'id' => 'Simple',
+    'basePath' => __DIR__,
+    'controllerNamespace' => 'app\mockmailer\controllers',
+    'components' => [
+        'request' => [
+            'enableCsrfValidation' => false,
+            'cookieValidationKey' => 'test'
+        ],
+        'mailer' => [
+            'class' => 'yii\swiftmailer\Mailer',
+        ],
+    ],
+];
diff --git a/tests/cases/mock-mailer/controllers/SiteController.php b/tests/cases/mock-mailer/controllers/SiteController.php
new file mode 100644
index 0000000..644557c
--- /dev/null
+++ b/tests/cases/mock-mailer/controllers/SiteController.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace app\mockmailer\controllers;
+
+use yii\web\Controller;
+
+final class SiteController extends Controller
+{
+    public function actionIndex()
+    {
+        return __METHOD__;
+    }
+
+    public function actionSendMailWithoutRedirect()
+    {
+        $this->doSendMail();
+
+        return __METHOD__;
+    }
+
+    public function actionSendMailWithRedirect()
+    {
+        $this->doSendMail();
+
+        return $this->redirect(['site/index']);
+    }
+
+    private function doSendMail()
+    {
+        return \Yii::$app->mailer->compose()
+            ->setFrom('from@domain.com')
+            ->setTo('to@domain.com')
+            ->setSubject('Message subject')
+            ->setTextBody('Plain text content')
+            ->setHtmlBody('<b>HTML content</b>')
+            ->send()
+        ;
+    }
+}
diff --git a/tests/cases/mock-mailer/functional.suite.yml b/tests/cases/mock-mailer/functional.suite.yml
new file mode 100644
index 0000000..d2d1a2f
--- /dev/null
+++ b/tests/cases/mock-mailer/functional.suite.yml
@@ -0,0 +1,11 @@
+# Codeception Test Suite Configuration
+#
+# Suite for functional tests
+# Emulate web requests and make application process them
+# Include one of framework modules (Symfony2, Yii2, Laravel5) to use it
+# Remove this suite if you don't use frameworks
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
\ No newline at end of file
diff --git a/tests/cases/mock-mailer/functional/MockMailerCest.php b/tests/cases/mock-mailer/functional/MockMailerCest.php
new file mode 100644
index 0000000..78ff126
--- /dev/null
+++ b/tests/cases/mock-mailer/functional/MockMailerCest.php
@@ -0,0 +1,26 @@
+<?php
+namespace tests;
+
+use yii\web\Application;
+
+final class MockMailerCest
+{
+    public function testInstantiation(FunctionalTester $I)
+    {
+        $I->assertInstanceOf(Application::class, \Yii::$app);
+    }
+
+    public function testCountMailSentWithoutRedirect(FunctionalTester $I)
+    {
+        $I->amOnPage(['site/send-mail-without-redirect']);
+
+        $I->seeEmailIsSent(1);
+    }
+
+    public function testCountMailSentWithRedirect(FunctionalTester $I)
+    {
+        $I->amOnPage(['site/send-mail-with-redirect']);
+
+        $I->seeEmailIsSent(1);
+    }
+}
diff --git a/tests/cases/pageCacheHeaderAlreadySent/codeception.yml b/tests/cases/pageCacheHeaderAlreadySent/codeception.yml
new file mode 100644
index 0000000..01393b5
--- /dev/null
+++ b/tests/cases/pageCacheHeaderAlreadySent/codeception.yml
@@ -0,0 +1,13 @@
+paths:
+  tests: .
+  log: ../../_output
+  data: _data
+  support: ../../_support
+namespace: tests\
+extensions:
+  enabled:
+    - Codeception\Extension\RunFailed
+modules:
+  config:
+    Yii2:
+      configFile: config.php
\ No newline at end of file
diff --git a/tests/cases/pageCacheHeaderAlreadySent/config.php b/tests/cases/pageCacheHeaderAlreadySent/config.php
new file mode 100644
index 0000000..b65fa02
--- /dev/null
+++ b/tests/cases/pageCacheHeaderAlreadySent/config.php
@@ -0,0 +1,12 @@
+<?php
+
+return [
+    'id' => 'PageCache',
+    'basePath' => __DIR__,
+    'controllerNamespace' => 'app\pageCacheHeaderAlreadySent\controllers',
+    'components' => [
+        'cache' => [
+            'class' => \yii\caching\DummyCache::class,
+        ],
+    ],
+];
diff --git a/tests/cases/pageCacheHeaderAlreadySent/controllers/UserController.php b/tests/cases/pageCacheHeaderAlreadySent/controllers/UserController.php
new file mode 100644
index 0000000..ef8b022
--- /dev/null
+++ b/tests/cases/pageCacheHeaderAlreadySent/controllers/UserController.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace app\pageCacheHeaderAlreadySent\controllers;
+
+use yii\filters\PageCache;
+
+class UserController extends \yii\web\Controller
+{
+    public function behaviors()
+    {
+        return [
+            'cache' => [
+                'class' => PageCache::class
+            ]
+        ];
+    }
+
+    public function actionIndex()
+    {
+        return 'test';
+    }
+}
diff --git a/tests/cases/pageCacheHeaderAlreadySent/functional.suite.yml b/tests/cases/pageCacheHeaderAlreadySent/functional.suite.yml
new file mode 100644
index 0000000..42a4352
--- /dev/null
+++ b/tests/cases/pageCacheHeaderAlreadySent/functional.suite.yml
@@ -0,0 +1,12 @@
+# Codeception Test Suite Configuration
+#
+# Suite for api tests
+# Include one of framework modules (Symfony2, Yii2, Laravel5) to use it
+# Remove this suite if you don't use frameworks
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
+steps:
+    - Codeception\Step\ConditionalAssertion    
diff --git a/tests/cases/pageCacheHeaderAlreadySent/functional/PageCest.php b/tests/cases/pageCacheHeaderAlreadySent/functional/PageCest.php
new file mode 100644
index 0000000..6d9c545
--- /dev/null
+++ b/tests/cases/pageCacheHeaderAlreadySent/functional/PageCest.php
@@ -0,0 +1,13 @@
+<?php
+
+class PageCest {
+
+    public function testCache(\tests\FunctionalTester $I)
+    {
+        $I->amOnPage(['user/index']);
+        $I->canSeeResponseCodeIs(200);
+
+        $I->amOnPage(['user/index']);
+        $I->canSeeResponseCodeIs(200);
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/simple/codeception.yml b/tests/cases/simple/codeception.yml
new file mode 100644
index 0000000..cb08201
--- /dev/null
+++ b/tests/cases/simple/codeception.yml
@@ -0,0 +1,18 @@
+paths:
+  tests: .
+  log: ../../_output
+  data: _data
+  support: ../../_support
+namespace: tests\
+extensions:
+  enabled:
+    - Codeception\Extension\RunFailed
+settings:
+  shuffle: true
+  coolstuff: false
+modules:
+  config:
+    Yii2:
+      configFile: config.php
+      transaction: true
+      cleanup: true
\ No newline at end of file
diff --git a/tests/cases/simple/config.php b/tests/cases/simple/config.php
new file mode 100644
index 0000000..2e11ee3
--- /dev/null
+++ b/tests/cases/simple/config.php
@@ -0,0 +1,23 @@
+<?php
+
+use app\simple\helpers\DummyUser;
+
+return [
+    'id' => 'Simple',
+    'basePath' => __DIR__,
+    'controllerNamespace' => 'app\simple\controllers',
+    'components' => [
+        'request' => [
+            'enableCsrfValidation' => false,
+            'cookieValidationKey' => 'test'
+        ],
+        'user' => [
+            'identityClass' => DummyUser::class
+        ]
+    ],
+    'on beforeRequest' => function() {
+        if (isset(\Yii::$app->params['throw'])) {
+            throw \Yii::$app->params['throw'];
+        }
+    }
+];
\ No newline at end of file
diff --git a/tests/cases/simple/controllers/SiteController.php b/tests/cases/simple/controllers/SiteController.php
new file mode 100644
index 0000000..7d8a550
--- /dev/null
+++ b/tests/cases/simple/controllers/SiteController.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace app\simple\controllers;
+use app\simple\helpers\EmptyString;
+use yii\base\Action;
+use yii\helpers\Url;
+use yii\web\Controller;
+
+class SiteController extends Controller
+{
+
+    public function actionForm()
+    {
+        $action = Url::to(['site/post']);
+        return <<<HTML
+<html>
+<body>
+<form method="post" action="$action">
+<input name="test" type="text" id="test">
+<input type="submit" id="submit">Submit</input>
+</form>
+</body>
+</html>
+
+
+HTML;
+
+    }
+
+    public function actionPost()
+    {
+        \Yii::$app->response->statusCode = 201;
+        return print_r(\Yii::$app->request->bodyParams, true);
+    }
+
+    public function actionException()
+    {
+        throw new \Exception('This is not an HttpException');
+    }
+
+    public function actionEnd()
+    {
+        \Yii::$app->response->statusCode = 500;
+        \Yii::$app->end();
+    }
+
+
+    /**
+     * @param Action $action
+     * @return bool
+     * @throws \yii\web\BadRequestHttpException
+     */
+    public function  beforeAction($action)
+    {
+        if ($action->id === 'empty-response') {
+            \Yii::$app->response->stream = fopen('php://memory', 'r+');
+            \Yii::$app->response->content = new EmptyString('Empty!');
+            return false;
+        }
+        return parent::beforeAction($action);
+    }
+
+    public function actionEmptyResponse()
+    {
+        // Dummy
+    }
+
+    public function actionIndex()
+    {
+        return '';
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/simple/functional.suite.yml b/tests/cases/simple/functional.suite.yml
new file mode 100644
index 0000000..6da4e38
--- /dev/null
+++ b/tests/cases/simple/functional.suite.yml
@@ -0,0 +1,13 @@
+# Codeception Test Suite Configuration
+#
+# Suite for functional tests
+# Emulate web requests and make application process them
+# Include one of framework modules (Symfony2, Yii2, Laravel5) to use it
+# Remove this suite if you don't use frameworks
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
+steps:
+    - Codeception\Step\ConditionalAssertion    
diff --git a/tests/cases/simple/functional/SimpleCest.php b/tests/cases/simple/functional/SimpleCest.php
new file mode 100644
index 0000000..b171f9b
--- /dev/null
+++ b/tests/cases/simple/functional/SimpleCest.php
@@ -0,0 +1,74 @@
+<?php
+namespace tests;
+
+use Codeception\Exception\ModuleException;
+use yii\base\ExitException;
+use yii\web\Application;
+
+class SimpleCest
+{
+
+    public function testInstantiation(FunctionalTester $I)
+    {
+        $I->assertInstanceOf(Application::class, \Yii::$app);
+    }
+
+    public function testFormSubmit(FunctionalTester $I)
+    {
+        $I->amOnPage(['site/form']);
+        $I->seeResponseCodeIs(200);
+
+        $I->fillField('#test', 'test');
+        $I->click('#submit');
+        $I->canSeeResponseCodeIs(201);
+    }
+
+    public function testFormSubmit2(FunctionalTester $I)
+    {
+        $I->amOnPage(['site/form']);
+        $I->seeResponseCodeIs(200);
+        $I->submitForm('form', [
+            'login-form[login]' => 'user',
+            'login-form[password]' => 'test',
+        ]);
+        $I->canSeeResponseCodeIs(201);
+    }
+
+    public function testException(FunctionalTester $I)
+    {
+        $I->expectException(new \Exception('This is not an HttpException'), function() use ($I) {
+            $I->amOnPage(['site/exception']);
+        });
+        $I->assertInstanceOf(Application::class, \Yii::$app);
+    }
+
+    public function testExceptionInBeforeRequest(FunctionalTester $I)
+    {
+        $e = new \Exception('This is not an HttpException');
+        \Yii::$app->params['throw'] = $e;
+        $I->expectException($e, function() use ($I) {
+            $I->amOnPage(['site/exception']);
+        });
+    }
+
+    public function testExitException(FunctionalTester $I)
+    {
+        $I->amOnPage(['site/end']);
+        $I->seeResponseCodeIs(500);
+    }
+
+    public function testEmptyResponse(FunctionalTester $I)
+    {
+        $I->amOnPage(['site/empty-response']);
+        $I->seeResponseCodeIs(200);
+    }
+
+    public function testMissingUser(FunctionalTester $I)
+    {
+        $I->expectException(ModuleException::class, function() use ($I) {
+            $I->amLoggedInAs('nobody');
+        });
+        $I->amOnPage('site/index');
+        $I->assertTrue(\Yii::$app->user->isGuest);
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/simple/helpers/DummyUser.php b/tests/cases/simple/helpers/DummyUser.php
new file mode 100644
index 0000000..8d38582
--- /dev/null
+++ b/tests/cases/simple/helpers/DummyUser.php
@@ -0,0 +1,77 @@
+<?php
+
+
+namespace app\simple\helpers;
+
+
+use yii\web\IdentityInterface;
+
+class DummyUser implements IdentityInterface
+{
+
+    /**
+     * Finds an identity by the given ID.
+     * @param string|int $id the ID to be looked for
+     * @return IdentityInterface the identity object that matches the given ID.
+     * Null should be returned if such an identity cannot be found
+     * or the identity is not in an active state (disabled, deleted, etc.)
+     */
+    public static function findIdentity($id)
+    {
+        return null;
+        // TODO: Implement findIdentity() method.
+    }
+
+    /**
+     * Finds an identity by the given token.
+     * @param mixed $token the token to be looked for
+     * @param mixed $type the type of the token. The value of this parameter depends on the implementation.
+     * For example, [[\yii\filters\auth\HttpBearerAuth]] will set this parameter to be `yii\filters\auth\HttpBearerAuth`.
+     * @return IdentityInterface the identity object that matches the given token.
+     * Null should be returned if such an identity cannot be found
+     * or the identity is not in an active state (disabled, deleted, etc.)
+     */
+    public static function findIdentityByAccessToken($token, $type = null)
+    {
+        // TODO: Implement findIdentityByAccessToken() method.
+    }
+
+    /**
+     * Returns an ID that can uniquely identify a user identity.
+     * @return string|int an ID that uniquely identifies a user identity.
+     */
+    public function getId()
+    {
+        // TODO: Implement getId() method.
+    }
+
+    /**
+     * Returns a key that can be used to check the validity of a given identity ID.
+     *
+     * The key should be unique for each individual user, and should be persistent
+     * so that it can be used to check the validity of the user identity.
+     *
+     * The space of such keys should be big enough to defeat potential identity attacks.
+     *
+     * This is required if [[User::enableAutoLogin]] is enabled.
+     * @return string a key that is used to check the validity of a given identity ID.
+     * @see validateAuthKey()
+     */
+    public function getAuthKey()
+    {
+        // TODO: Implement getAuthKey() method.
+    }
+
+    /**
+     * Validates the given auth key.
+     *
+     * This is required if [[User::enableAutoLogin]] is enabled.
+     * @param string $authKey the given auth key
+     * @return bool whether the given auth key is valid.
+     * @see getAuthKey()
+     */
+    public function validateAuthKey($authKey)
+    {
+        // TODO: Implement validateAuthKey() method.
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/simple/helpers/EmptyString.php b/tests/cases/simple/helpers/EmptyString.php
new file mode 100644
index 0000000..bcd3f74
--- /dev/null
+++ b/tests/cases/simple/helpers/EmptyString.php
@@ -0,0 +1,27 @@
+<?php
+
+
+namespace app\simple\helpers;
+
+/**
+ * Class that is empty when converted to string
+ */
+class EmptyString
+{
+    private $value;
+
+    public function __construct($value)
+    {
+        $this->value = $value;
+    }
+
+    public function getValue()
+    {
+        return $this->value;
+    }
+
+    public function __toString()
+    {
+        return '';
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/sqlite/codeception.yml b/tests/cases/sqlite/codeception.yml
new file mode 100644
index 0000000..caf01d1
--- /dev/null
+++ b/tests/cases/sqlite/codeception.yml
@@ -0,0 +1,15 @@
+paths:
+    tests: .
+    log: ../../_output
+    data: _data
+    support: ../../_support
+namespace: tests\
+extensions:
+    enabled:
+        - Codeception\Extension\RunFailed
+modules:
+  config:
+    Yii2:
+      configFile: config.php
+      transaction: true
+      cleanup: true
\ No newline at end of file
diff --git a/tests/cases/sqlite/config.php b/tests/cases/sqlite/config.php
new file mode 100644
index 0000000..e20ed92
--- /dev/null
+++ b/tests/cases/sqlite/config.php
@@ -0,0 +1,24 @@
+<?php
+return [
+    'id' => 'Simple',
+    'basePath' => __DIR__,
+
+    'components' => [
+        'db' => [
+            'class' => yii\db\Connection::class,
+            'dsn' => 'sqlite:' . tempnam(null, '/file0')
+        ],
+        'db1' => [
+            'class' => yii\db\Connection::class,
+            'dsn' => 'sqlite:' . tempnam(null, '/file1')
+        ],
+        'db21' => [
+            'class' => yii\db\Connection::class,
+            'dsn' => 'sqlite:' . ($name = tempnam(null, '/file2'))
+        ],
+        'db22' => [
+            'class' => yii\db\Connection::class,
+            'dsn' => 'sqlite:' . $name
+        ]
+    ]
+];
\ No newline at end of file
diff --git a/tests/cases/sqlite/fixtures/TestFixture.php b/tests/cases/sqlite/fixtures/TestFixture.php
new file mode 100644
index 0000000..f57b62f
--- /dev/null
+++ b/tests/cases/sqlite/fixtures/TestFixture.php
@@ -0,0 +1,36 @@
+<?php
+namespace tests\fixtures;
+
+
+use yii\db\Connection;
+use yii\db\Exception;
+use yii\test\DbFixture;
+
+class TestFixture extends DbFixture
+{
+    public $tableName = 'test';
+    public $tableConfig = [
+        'id' => 'int'
+    ];
+
+    public $dbComponents = [];
+
+    public function load() {
+        foreach($this->dbComponents as $name) {
+            /** @var Connection $connection */
+            $connection = \Yii::$app->get($name);
+            $connection->createCommand()->createTable($this->tableName, $this->tableConfig)->execute();
+        }
+    }
+
+    public function unload()
+    {
+        foreach($this->dbComponents as $name) {
+            /** @var Connection $connection */
+            $connection = \Yii::$app->get($name);
+            if (in_array($this->tableName, $connection->getSchema()->getTableNames('', true))) {
+                $connection->createCommand()->dropTable($this->tableName)->execute();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/sqlite/functional.suite.yml b/tests/cases/sqlite/functional.suite.yml
new file mode 100644
index 0000000..f582374
--- /dev/null
+++ b/tests/cases/sqlite/functional.suite.yml
@@ -0,0 +1,13 @@
+# Codeception Test Suite Configuration
+#
+# Suite for functional tests
+# Emulate web requests and make application process them
+# Include one of framework modules (Symfony2, Yii2, Laravel5) to use it
+# Remove this suite if you don't use frameworks
+actor: FunctionalTester
+modules:
+  enabled:
+    - Yii2
+    - Asserts
+steps:
+    - Codeception\Step\ConditionalAssertion        
diff --git a/tests/cases/sqlite/functional/SqLiteCest.php b/tests/cases/sqlite/functional/SqLiteCest.php
new file mode 100644
index 0000000..a581be8
--- /dev/null
+++ b/tests/cases/sqlite/functional/SqLiteCest.php
@@ -0,0 +1,46 @@
+<?php
+namespace tests;
+
+use tests\fixtures\TestFixture;
+use yii\db\Connection;
+
+class SqLiteCest
+{
+    /**
+     * This is called before the database transaction is started.
+     */
+    public function _fixtures()
+    {
+        return [
+            [
+                'class' => TestFixture::class,
+                'dbComponents' => ['db1', 'db21']
+            ],
+        ];
+    }
+
+    public function testSharedPDO(FunctionalTester $I)
+    {
+        /** @var Connection $db1 */
+        $db1 = $I->grabComponent('db1');
+        $I->assertEquals(['test'], $db1->schema->getTableNames('', true));
+
+        /** @var Connection $db21 */
+        $db21 = $I->grabComponent('db21');
+        $I->assertEquals(['test'], $db21->schema->getTableNames('', true));
+
+        /** @var Connection $db22 */
+        $db22 = $I->grabComponent('db22');
+
+        $I->assertEquals(['test'], $db22->schema->getTableNames('', true));
+    }
+
+    public function testTransaction(FunctionalTester $I)
+    {
+        /** @var Connection $db1 */
+        $db1 = $I->grabComponent('db1');
+        $I->assertFalse($db1->isActive);
+        $db1->open();
+        $I->assertNotNull($db1->getTransaction());
+    }
+}
diff --git a/tests/cases/yii2-app-advanced/_data/db.sqlite b/tests/cases/yii2-app-advanced/_data/db.sqlite
new file mode 100644
index 0000000..5f5d793
Binary files /dev/null and b/tests/cases/yii2-app-advanced/_data/db.sqlite differ
diff --git a/tests/cases/yii2-app-advanced/codeception.yml b/tests/cases/yii2-app-advanced/codeception.yml
new file mode 100644
index 0000000..744faf9
--- /dev/null
+++ b/tests/cases/yii2-app-advanced/codeception.yml
@@ -0,0 +1,15 @@
+namespace: frontend\tests
+actor_suffix: Tester
+paths:
+    tests: ../../../vendor/yiisoft/yii2-app-advanced/frontend/tests
+    log: ../../_output
+    data: ../../../vendor/yiisoft/yii2-app-advanced/frontend/tests/_data
+    support: ../../../vendor/yiisoft/yii2-app-advanced/frontend/tests/_support
+bootstrap: _bootstrap.php
+settings:
+    colors: true
+    memory_limit: 1024M
+modules:
+    config:
+        Yii2:
+            configFile: 'config.php'
diff --git a/tests/cases/yii2-app-advanced/config.php b/tests/cases/yii2-app-advanced/config.php
new file mode 100644
index 0000000..82c61da
--- /dev/null
+++ b/tests/cases/yii2-app-advanced/config.php
@@ -0,0 +1,32 @@
+<?php
+
+file_put_contents(__DIR__ . '/../../../vendor/yiisoft/yii2-app-advanced/common/config/params-local.php', '<?php return [];');
+file_put_contents(__DIR__ . '/../../../vendor/yiisoft/yii2-app-advanced/frontend/config/params-local.php', '<?php return [];');
+
+// Copy the database to the output dir so we don't get changes in version control.
+copy(__DIR__ . '/_data/db.sqlite', codecept_output_dir('/db.sqlite'));
+
+$config = \yii\helpers\ArrayHelper::merge(require __DIR__ . '/../../../vendor/yiisoft/yii2-app-advanced/frontend/config/main.php', [
+    'components' => [
+        'db' => [
+            'class' => yii\db\Connection::class,
+            'dsn' => 'sqlite:' . codecept_output_dir('/db.sqlite')
+        ],
+        'request' => [
+            'cookieValidationKey' => 'test'
+        ],
+        'assetManager' => [
+            'basePath' => sys_get_temp_dir()
+        ],
+        'mailer' => [
+            'viewPath' => '@common/mail',
+        ],
+    ],
+    'aliases' => [
+        '@bower' => '@vendor/bower-asset',
+        '@npm' => '@vendor/npm-asset'
+    ],
+    'vendorPath' => __DIR__ . '/../../../vendor'
+]);
+
+return $config;
\ No newline at end of file
diff --git a/tests/cases/yii2-app-advanced/migrate.php b/tests/cases/yii2-app-advanced/migrate.php
new file mode 100644
index 0000000..a910536
--- /dev/null
+++ b/tests/cases/yii2-app-advanced/migrate.php
@@ -0,0 +1,17 @@
+<?php
+
+file_put_contents(__DIR__ . '/../../../vendor/yiisoft/yii2-app-advanced/common/config/params-local.php', '<?php return [];');
+file_put_contents(__DIR__ . '/../../../vendor/yiisoft/yii2-app-advanced/console/config/params-local.php', '<?php return [];');
+
+// Copy the database to the output dir so we don't get changes in version control.
+$config = \yii\helpers\ArrayHelper::merge(require __DIR__ . '/../../../vendor/yiisoft/yii2-app-advanced/console/config/main.php', [
+    'components' => [
+        'db' => [
+            'class' => yii\db\Connection::class,
+	    'dsn' => 'sqlite:' . __DIR__ . '/_data/db.sqlite'
+	],
+    ],
+    'vendorPath' => __DIR__ . '/../../../vendor'
+]);
+
+return $config;