Merge pull request #4973 from edx/tim/single-group-is-ok

Update test_group_configuration_validation on single group allowed

common/test/acceptance/tests/test_studio_split_test.py

@@ -642,9 +642,9 @@ class GroupConfigurationsTest(ContainerBase, SplitTestMixin):
         When I set a name
         And I delete the name of one of the groups and try to save
         Then I see error message "All groups must have a name"
-        When I delete the group without name and try to save
-        Then I see error message "Please add at least two groups."
-        When I add new group and try to save
+        When I delete all the groups and try to save
+        Then I see error message "There must be at least one group."
+        When I add a group and try to save
         Then I see the group configuration is saved successfully
         """
         def try_to_save_and_verify_error_message(message):
@@ -668,7 +668,9 @@ class GroupConfigurationsTest(ContainerBase, SplitTestMixin):
         config.name = "Name of the Group Configuration"
         config.groups[1].name = ''
         try_to_save_and_verify_error_message("All groups must have a name.")
-        config.groups[1].remove()
+        config.groups[0].remove()
+        config.groups[0].remove()
+        try_to_save_and_verify_error_message("There must be at least one group.")
         config.add_group()
 
         # Save the configuration
@@ -678,7 +680,7 @@ class GroupConfigurationsTest(ContainerBase, SplitTestMixin):
             config,
             name="Name of the Group Configuration",
             description="Description of the group configuration.",
-            groups=["Group A", "Group B"]
+            groups=["Group A"]
         )
 
     def test_group_configuration_empty_usage(self):