Close notification correctly in GridEditorTest

Change-Id: Ibe5f1cab99025fa4760ebd1e6b9d11d739e1a435

uitest/src/com/vaadin/tests/components/grid/basicfeatures/server/GridEditorTest.java

@@ -219,7 +219,7 @@ public class GridEditorTest extends GridBasicFeaturesTest {
         FixedNotificationElement n = $(FixedNotificationElement.class).first();
         assertEquals("Column 7: Could not convert value to Integer",
                 n.getCaption());
-        n.click();
+        n.close();
         editor.cancel();
 
         selectMenuPath(EDIT_ITEM_100);

uitest/src/com/vaadin/tests/tb3/newelements/FixedNotificationElement.java

@@ -1,6 +1,8 @@
 package com.vaadin.tests.tb3.newelements;
 
 import org.openqa.selenium.WebElement;
+import org.openqa.selenium.support.ui.ExpectedConditions;
+import org.openqa.selenium.support.ui.WebDriverWait;
 
 import com.vaadin.testbench.By;
 import com.vaadin.testbench.elements.NotificationElement;
@@ -13,4 +15,11 @@ public class FixedNotificationElement extends NotificationElement {
         WebElement caption = popup.findElement(By.tagName("h1"));
         return caption.getText();
     }
+
+    public void close() {
+        click();
+        WebDriverWait wait = new WebDriverWait(getDriver(), 10);
+        wait.until(ExpectedConditions.not(ExpectedConditions
+                .presenceOfAllElementsLocatedBy(By.className("v-Notification"))));
+    }
 }