Инициализировано Yii2 приложение, выпилены лишние части, накинуты чуточку нужных

tests/codeception/api/unit/models/PasswordResetRequestFormTest.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace tests\codeception\api\models;
+
+use Yii;
+use tests\codeception\api\unit\DbTestCase;
+use api\models\PasswordResetRequestForm;
+use tests\codeception\common\fixtures\UserFixture;
+use common\models\User;
+use Codeception\Specify;
+
+class PasswordResetRequestFormTest extends DbTestCase
+{
+    use Specify;
+
+    protected function setUp()
+    {
+        parent::setUp();
+
+        Yii::$app->mailer->fileTransportCallback = function ($mailer, $message) {
+            return 'testing_message.eml';
+        };
+    }
+
+    protected function tearDown()
+    {
+        @unlink($this->getMessageFile());
+
+        parent::tearDown();
+    }
+
+    public function testSendEmailWrongUser()
+    {
+        $this->specify('no user with such email, message should not be sent', function () {
+
+            $model = new PasswordResetRequestForm();
+            $model->email = 'not-existing-email@example.com';
+
+            expect('email not sent', $model->sendEmail())->false();
+
+        });
+
+        $this->specify('user is not active, message should not be sent', function () {
+
+            $model = new PasswordResetRequestForm();
+            $model->email = $this->user[1]['email'];
+
+            expect('email not sent', $model->sendEmail())->false();
+
+        });
+    }
+
+    public function testSendEmailCorrectUser()
+    {
+        $model = new PasswordResetRequestForm();
+        $model->email = $this->user[0]['email'];
+        $user = User::findOne(['password_reset_token' => $this->user[0]['password_reset_token']]);
+
+        expect('email sent', $model->sendEmail())->true();
+        expect('user has valid token', $user->password_reset_token)->notNull();
+
+        $this->specify('message has correct format', function () use ($model) {
+
+            expect('message file exists', file_exists($this->getMessageFile()))->true();
+
+            $message = file_get_contents($this->getMessageFile());
+            expect('message "from" is correct', $message)->contains(Yii::$app->params['supportEmail']);
+            expect('message "to" is correct', $message)->contains($model->email);
+
+        });
+    }
+
+    public function fixtures()
+    {
+        return [
+            'user' => [
+                'class' => UserFixture::className(),
+                'dataFile' => '@tests/codeception/api/unit/fixtures/data/models/user.php'
+            ],
+        ];
+    }
+
+    private function getMessageFile()
+    {
+        return Yii::getAlias(Yii::$app->mailer->fileTransportPath) . '/testing_message.eml';
+    }
+}