1 files changed, 63 insertions, 0 deletions
diff --git a/spec/lib/sidebars/projects/menus/merge_requests_menu_spec.rb b/spec/lib/sidebars/projects/menus/merge_requests_menu_spec.rb
new file mode 100644
index 00000000000..cef303fb068
--- /dev/null
+++ b/spec/lib/sidebars/projects/menus/merge_requests_menu_spec.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Sidebars::Projects::Menus::MergeRequestsMenu do
+  let_it_be(:project) { create(:project, :repository) }
+
+  let(:user) { project.owner }
+  let(:context) { Sidebars::Projects::Context.new(current_user: user, container: project) }
+
+  subject { described_class.new(context) }
+
+  describe '#render?' do
+    context 'when repository is not present' do
+      let(:project) { build(:project) }
+
+      it 'returns false' do
+        expect(subject.render?).to eq false
+      end
+    end
+
+    context 'when repository is present' do
+      context 'when user can read merge requests' do
+        it 'returns true' do
+          expect(subject.render?).to eq true
+        end
+      end
+
+      context 'when user cannot read merge requests' do
+        let(:user) { nil }
+
+        it 'returns false' do
+          expect(subject.render?).to eq false
+        end
+      end
+    end
+  end
+
+  describe '#pill_count' do
+    it 'returns zero when there are no open merge requests' do
+      expect(subject.pill_count).to eq 0
+    end
+
+    it 'memoizes the query' do
+      subject.pill_count
+
+      control = ActiveRecord::QueryRecorder.new do
+        subject.pill_count
+      end
+
+      expect(control.count).to eq 0
+    end
+
+    context 'when there are open merge requests' do
+      it 'returns the number of open merge requests' do
+        create_list(:merge_request, 2, :unique_branches, source_project: project, author: user, state: :opened)
+        create(:merge_request, source_project: project, state: :merged)
+
+        expect(subject.pill_count).to eq 2
+      end
+    end
+  end
+end