Merge branch 'atom-feed-latest-update' into 'master'

Improve performance of user profiles, finding groups, and finding projects

This MR improves the following:

* Rendering of profile pages and Atom feeds
* Finding groups (using GroupsFinder & friends)
* Finding projects (using ProjectsFinder & friends)

Initially this MR was intended to only improve rendering of Atom feeds, but over time other fixes were introduced as well as the same code was the cause of all these problems.

See merge request !1790

1 files changed, 38 insertions, 0 deletions

diff --git a/spec/models/event_spec.rb b/spec/models/event_spec.rb
index 0f32f162a10..ae53f7a536b 100644
--- a/spec/models/event_spec.rb
+++ b/spec/models/event_spec.rb
@@ -64,4 +64,42 @@ describe Event do
     it { expect(@event.branch_name).to eq("master") }
     it { expect(@event.author).to eq(@user) }
   end
+
+  describe '.latest_update_time' do
+    describe 'when events are present' do
+      let(:time) { Time.utc(2015, 1, 1) }
+
+      before do
+        create(:closed_issue_event, updated_at: time)
+        create(:closed_issue_event, updated_at: time + 5)
+      end
+
+      it 'returns the latest update time' do
+        expect(Event.latest_update_time).to eq(time + 5)
+      end
+    end
+
+    describe 'when no events exist' do
+      it 'returns nil' do
+        expect(Event.latest_update_time).to be_nil
+      end
+    end
+  end
+
+  describe '.limit_recent' do
+    let!(:event1) { create(:closed_issue_event) }
+    let!(:event2) { create(:closed_issue_event) }
+
+    describe 'without an explicit limit' do
+      subject { Event.limit_recent }
+
+      it { is_expected.to eq([event2, event1]) }
+    end
+
+    describe 'with an explicit limit' do
+      subject { Event.limit_recent(1) }
+
+      it { is_expected.to eq([event2]) }
+    end
+  end
 end