fixing some tests

tests/_pages/LoginPage.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace tests\_pages;
+
+use yii\codeception\BasePage;
+
+/**
+ * Represents login page.
+ *
+ * @property \FunctionalTester $actor
+ */
+class LoginPage extends BasePage
+{
+    /** @inheritdoc */
+    public $route = '/user/security/login';
+
+    /**
+     * @param $login
+     * @param $password
+     */
+    public function login($login, $password)
+    {
+        $this->actor->fillField('#login-form-login', $login);
+        $this->actor->fillField('#login-form-password', $password);
+        $this->actor->click('Sign in');
+    }
+}