Issue #3317859 by jhedstrom, adriancid: Have different messages for new and...

Issue #3317859 by jhedstrom, adriancid: Have different messages for new and update message templates

src/Form/MessageTemplateForm.php

@@ -183,13 +183,19 @@ class MessageTemplateForm extends EntityForm {
     }, $text);
     $this->entity->set('text', $text);
 
+    $new = $this->entity->isNew();
     parent::save($form, $form_state);
 
     $params = [
-      '@template' => $form_state->getValue('label'),
+      '%template' => $form_state->getValue('label'),
     ];
 
-    $this->messenger()->addMessage($this->t('The message template @template created successfully.', $params));
+    if ($new) {
+      $this->messenger()->addMessage($this->t('The message template %template created successfully.', $params));
+    }
+    else {
+      $this->messenger()->addMessage($this->t('The message template %template has been updated.', $params));
+    }
     $form_state->setRedirect('message.overview_templates');
     return $this->entity;
   }

tests/src/Functional/MessageTemplateUiTest.php

@@ -85,6 +85,7 @@ class MessageTemplateUiTest extends MessageTestBase {
     ];
     $this->drupalGet('admin/structure/message/manage/dummy_message');
     $this->submitForm($edit, t('Save message template'));
+    $this->assertSession()->pageTextContains('The message template Edited Dummy message has been updated.');
 
     $this->drupalGet('admin/structure/message/manage/dummy_message');