fixing some tests

tests/_app/views/layouts/main.php

@@ -0,0 +1,10 @@
+<?php
+
+if (Yii::$app->user->getIsGuest()) {
+    echo \yii\helpers\Html::a('Login', ['/user/security/login']);
+    echo \yii\helpers\Html::a('Registration', ['/user/registration/register']);
+} else {
+    echo \yii\helpers\Html::a('Logout', ['/user/security/logout']);
+}
+
+echo $content;

tests/_app/views/site/index.php

@@ -0,0 +1 @@
+Index