Use amOnPage instead of clicks in menu

tests/_support/AcceptanceTester.php

@@ -69,12 +69,16 @@ class AcceptanceTester extends \Codeception\Actor {
    */
   public function amOnMailpoetPage($page) {
     $I = $this;
-    $I->amOnPage('/wp-admin');
+    if($page === 'Emails') {
-    $I->waitForText('MailPoet', 10);
+      $path = 'newsletters';
-    $I->click('MailPoet');
+    } elseif($page === 'Lists') {
-    $I->waitForText($page, 5);
+      $path = 'segments';
-    $I->click($page);
+    } elseif($page === 'Segments') {
-    $I->waitForText($page, 5);
+      $path = 'dynamic-segments';
+    } else {
+      $path = strtolower($page);
+    }
+    $I->amOnPage("/wp-admin/admin.php?page=mailpoet-$path");
   }
 
   /**

tests/acceptance/MailpoetMenuCest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace MailPoet\Test\Acceptance;
+
+class MailpoetMenuCest {
+  function sendEmail(\AcceptanceTester $I) {
+    $I->wantTo('Use MailPoet menu in WordPress admin');
+
+    $I->login();
+    $I->amOnPage('/wp-admin');
+    $I->click('MailPoet');
+
+    $I->click('Emails');
+    $I->seeInCurrentUrl('?page=mailpoet-newsletters');
+
+    $I->click('Forms');
+    $I->seeInCurrentUrl('?page=mailpoet-forms');
+
+    $I->click('Subscribers');
+    $I->seeInCurrentUrl('?page=mailpoet-subscribers');
+
+    $I->click('Lists');
+    $I->seeInCurrentUrl('?page=mailpoet-segments');
+
+    $I->click('Settings');
+    $I->seeInCurrentUrl('?page=mailpoet-settings');
+
+    $I->click('Help');
+    $I->seeInCurrentUrl('?page=mailpoet-help');
+  }
+}