Реализован обработчик для смены языка аккаунта

tests/codeception/api/unit/models/profile/ChangeLanguageFormTest.php

@@ -0,0 +1,36 @@
+<?php
+namespace codeception\api\unit\models\profile;
+
+use api\models\profile\ChangeLanguageForm;
+use Codeception\Specify;
+use common\models\Account;
+use tests\codeception\api\unit\DbTestCase;
+use tests\codeception\common\fixtures\AccountFixture;
+
+/**
+ * @property AccountFixture $accounts
+ */
+class ChangeLanguageFormTest extends DbTestCase {
+    use Specify;
+
+    public function fixtures() {
+        return [
+            'accounts' => [
+                'class' => AccountFixture::class,
+                'dataFile' => '@tests/codeception/common/fixtures/data/accounts.php',
+            ],
+        ];
+    }
+
+    public function testApplyLanguage() {
+        $this->specify('language changed', function() {
+            /** @var Account $account */
+            $account = Account::findOne($this->accounts['admin']);
+            $model = new ChangeLanguageForm($account);
+            $model->lang = 'ru';
+            expect($model->applyLanguage())->true();
+            expect($account->lang)->equals('ru');
+        });
+    }
+
+}