log stat on group creates

test plan
 - spec should pass

fixes VICE-900

Change-Id: I18b8bb35c58d3fc5b7db3835f28ef7d69ac116d7
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/249543
Reviewed-by: Matthew Lemon <mlemon@instructure.com>
QA-Review: Matthew Lemon <mlemon@instructure.com>
Product-Review: Matthew Lemon <mlemon@instructure.com>
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>

app/models/group_and_membership_importer.rb

@@ -127,12 +127,20 @@ def group_from_row(row)
     group ||= group_category.groups.where(sis_source_id: group_sis_id).take if group_sis_id
     if group_name
       group ||= group_category.groups.where(name: group_name).take
-      group ||= group_category.groups.create!(name: group_name, context: group_category.context)
+      group ||= create_new_group(group_name)
     end
     seen_groups[key] ||= group
     group
   end
 
+  def create_new_group(name)
+    InstStatsd::Statsd.increment('groups.auto_create',
+                                 tags: { split_type: 'csv',
+                                         root_account_id: group_category.root_account&.global_id,
+                                         root_account_name: group_category.root_account&.name })
+    group_category.groups.create!(name: name, context: group_category.context)
+  end
+
   def group_key(group_id, group_sis_id, group_name)
     key = []
     key << "id:#{group_id}" if group_id

spec/models/group_and_membership_importer_spec.rb

@@ -143,5 +143,15 @@ def import_csv_data(data)
       expect(gc1.groups.count).to eq 1
       expect(@user.groups.pluck(:name)).to eq ["manual group"]
     end
+
+    it 'should log stat on new groups' do
+      allow(InstStatsd::Statsd).to receive(:increment)
+      expect(InstStatsd::Statsd).to receive(:increment).with("groups.auto_create",
+                                                             tags: { split_type: 'csv',
+                                                                     root_account_id: gc1.root_account&.global_id,
+                                                                     root_account_name: gc1.root_account&.name })
+      import_csv_data(%{user_id,group_name
+                        user_4,anugroup})
+    end
   end
 end