MTA-3389: Alert Modal Block after deleting Sale or Catalog Rule randomly is not clickable

Author: okolesnyk

dev/tests/functional/tests/app/Magento/Ui/Test/Block/Adminhtml/Modal.php

@@ -55,6 +55,7 @@ class Modal extends Block
      */
     public function acceptAlert()
     {
+        $this->waitModalAnimationFinished();
         $this->_rootElement->find($this->acceptButtonSelector)->click();
     }
 
@@ -65,6 +66,7 @@ public function acceptAlert()
      */
     public function dismissAlert()
     {
+        $this->waitModalAnimationFinished();
         $this->_rootElement->find($this->dismissButtonSelector)->click();
     }
 
@@ -75,6 +77,7 @@ public function dismissAlert()
      */
     public function closeAlert()
     {
+        $this->waitModalAnimationFinished();
         $this->_rootElement->find($this->closeButtonSelector)->click();
     }
 
@@ -85,6 +88,7 @@ public function closeAlert()
      */
     public function getAlertText()
     {
+        $this->waitModalAnimationFinished();
         return $this->_rootElement->find($this->inputFieldSelector)->getValue();
     }
 
@@ -96,6 +100,7 @@ public function getAlertText()
      */
     public function setAlertText($text)
     {
+        $this->waitModalAnimationFinished();
         $this->_rootElement->find($this->inputFieldSelector)->setValue($text);
     }
 
@@ -112,4 +117,15 @@ function () {
             }
         );
     }
+
+    /**
+     * Waiting until CSS animation is done.
+     * Transition-duration is set at this file: "<magento_root>/lib/web/css/source/components/_modals.less"
+     *
+     * @return void
+     */
+    private function waitModalAnimationFinished()
+    {
+        usleep(500000);
+    }
 }