Fix and relevant spec for plan stage breaking with nil commitsfix/cycle-analytics-plan-issue

4 files changed, 15 insertions, 1 deletions

diff --git a/changelogs/unreleased/fix-cycle-analytics-plan-issue.yml b/changelogs/unreleased/fix-cycle-analytics-plan-issue.yml
new file mode 100644
index 00000000000..6ed16c6d722
--- /dev/null
+++ b/changelogs/unreleased/fix-cycle-analytics-plan-issue.yml
@@ -0,0 +1,4 @@
+---
+title: Fix cycle analytics plan stage when commits are missing
+merge_request: 
+author: 
diff --git a/lib/gitlab/cycle_analytics/base_event.rb b/lib/gitlab/cycle_analytics/base_event.rb
index 486139b1687..53a148ad703 100644
--- a/lib/gitlab/cycle_analytics/base_event.rb
+++ b/lib/gitlab/cycle_analytics/base_event.rb
@@ -16,7 +16,7 @@ module Gitlab
 
         event_result.map do |event|
           serialize(event) if has_permission?(event['id'])
-        end
+        end.compact
       end
 
       def custom_query(_base_query); end
diff --git a/lib/gitlab/cycle_analytics/plan_event.rb b/lib/gitlab/cycle_analytics/plan_event.rb
index b1ae215f348..7c3f0e9989f 100644
--- a/lib/gitlab/cycle_analytics/plan_event.rb
+++ b/lib/gitlab/cycle_analytics/plan_event.rb
@@ -27,6 +27,8 @@ module Gitlab
       end
 
       def first_time_reference_commit(commits, event)
+        return nil if commits.blank?
+
         YAML.load(commits).find do |commit|
           next unless commit[:committed_date] && event['first_mentioned_in_commit_at']
 
diff --git a/spec/lib/gitlab/cycle_analytics/plan_event_spec.rb b/spec/lib/gitlab/cycle_analytics/plan_event_spec.rb
index d76a255acf5..4a5604115ec 100644
--- a/spec/lib/gitlab/cycle_analytics/plan_event_spec.rb
+++ b/spec/lib/gitlab/cycle_analytics/plan_event_spec.rb
@@ -6,5 +6,13 @@ describe Gitlab::CycleAnalytics::PlanEvent do
     it 'has the default order' do
       expect(event.order).to eq(event.start_time_attrs)
     end
+
+    context 'no commits' do
+      it 'does not blow up if there are no commits' do
+        allow_any_instance_of(Gitlab::CycleAnalytics::EventsQuery).to receive(:execute).and_return([{}])
+
+        expect { event.fetch }.not_to raise_error
+      end
+    end
   end
 end