added assert_audit_log test helper

Author: Oaphi

test/test_helper.rb

@@ -129,6 +129,20 @@ def copy_abilities(community_id)
     end
   end
 
+  def assert_audit_log(event_type, related: nil)
+    log_entry = AuditLog.where(event_type: event_type)
+                        .order(created_at: :desc)
+                        .last
+    assert_not_nil(log_entry)
+    assert_equal event_type, log_entry['event_type']
+
+    if related.present?
+      assert_equal related.id, log_entry['related_id']
+    else
+      assert_nil(log_entry['related_id'])
+    end
+  end
+
   def assert_valid_json_response
     assert_nothing_raised do
       parsed = JSON.parse(response.body)