webui:tests: close big notifications in realm domains tests

Realm domains commands produce big fat warnings about DNS state/checks.
Given the length of these warnings, they stay displayed for longer time.
As Web UI automated tests progresses quickly more of the warnings can
be displayed at the same time and thus taking a lot of space and thus
covering UI needed for next test step.

By closing the notifications before next action we make sure that test
won't fail because notification covered the required UI.

Reviewed-By: Petr Cech <pcech@redhat.com>

ipatests/test_webui/test_realmdomains.py

@@ -39,6 +39,7 @@ class test_realmdomains(UI_driver):
         self.facet_button_click('save')
         self.dialog_button_click(button)
         self.wait_for_request()
+        self.close_notifications()
 
     @screenshot
     def test_read(self):
@@ -53,6 +54,7 @@ class test_realmdomains(UI_driver):
         self.facet_button_click('save')
         self.dialog_button_click('force')
         self.wait_for_request()
+        self.close_notifications()
 
         # delete
         self.del_realm_domain('itest.bar', 'force')
@@ -78,6 +80,7 @@ class test_realmdomains(UI_driver):
         # remove the added domain from Realm Domain
         self.navigate_to_entity(ENTITY)
         self.del_realm_domain(realmdomain, 'ok')
+        self.close_notifications()
 
         # re-add _TXT kerberos.$domain "$REALM"
         self.navigate_to_entity(ZONE_ENTITY)

ipatests/test_webui/ui_driver.py

@@ -711,6 +711,21 @@ class UI_driver(object):
         # possible dialog transition effect
         self.wait(0.5)
 
+    def close_notifications(self):
+        """
+        Close all notifications like success messages, warnings, infos
+        """
+        self.wait()
+        while True:
+            # get close button of notification
+            s = ".notification-area .alert button"
+            button = self.find(s, By.CSS_SELECTOR, strict=False)
+            if button:
+                button.click()
+                self.wait()
+            else:
+                break
+
     def get_form(self):
         """
         Get last dialog or visible facet