Merge branch 'sh-fix-last-activity-at-specs' into 'master'

Fix broken spec due to last_activity_at updates being throttled

In https://gitlab.com/gitlab-org/gitlab-ce/builds/4218398, the build failed because the last_activity_at column was only being updated once per hour. We
can fix this spec by stubbing out the throttling and adjusting the spec to test the right event timestamp.

See merge request !6424

app/models/event.rb

@@ -330,13 +330,23 @@ class Event < ActiveRecord::Base
 
     # Don't even bother obtaining a lock if the last update happened less than
     # 60 minutes ago.
-    return if project.last_activity_at > RESET_PROJECT_ACTIVITY_INTERVAL.ago
+    return if recent_update?
 
-    return unless Gitlab::ExclusiveLease.
+    return unless try_obtain_lease
+
+    project.update_column(:last_activity_at, created_at)
+  end
+
+  private
+
+  def recent_update?
+    project.last_activity_at > RESET_PROJECT_ACTIVITY_INTERVAL.ago
+  end
+
+  def try_obtain_lease
+    Gitlab::ExclusiveLease.
       new("project:update_last_activity_at:#{project.id}",
           timeout: RESET_PROJECT_ACTIVITY_INTERVAL.to_i).
       try_obtain
-
-    project.update_column(:last_activity_at, created_at)
   end
 end

spec/factories/events.rb

 FactoryGirl.define do
   factory :event do
+    project
+    author factory: :user
+
     factory :closed_issue_event do
-      project
       action { Event::CLOSED }
       target factory: :closed_issue
-      author factory: :user
     end
   end
 end

spec/models/project_spec.rb

@@ -308,20 +308,23 @@ describe Project, models: true do
   end
 
   describe 'last_activity methods' do
-    let(:project) { create(:project) }
-    let(:last_event) { double(created_at: Time.now) }
+    let(:timestamp) { Time.now - 2.hours }
+    let(:project) { create(:project, created_at: timestamp, updated_at: timestamp) }
 
     describe 'last_activity' do
       it 'alias last_activity to last_event' do
-        allow(project).to receive(:last_event).and_return(last_event)
+        last_event = create(:event, project: project)
+
         expect(project.last_activity).to eq(last_event)
       end
     end
 
     describe 'last_activity_date' do
       it 'returns the creation date of the project\'s last event if present' do
-        create(:event, project: project)
-        expect(project.last_activity_at.to_i).to eq(last_event.created_at.to_i)
+        expect_any_instance_of(Event).to receive(:try_obtain_lease).and_return(true)
+        new_event = create(:event, project: project, created_at: Time.now)
+
+        expect(project.last_activity_at.to_i).to eq(new_event.created_at.to_i)
       end
 
       it 'returns the project\'s last update date if it has no events' do