1 files changed, 106 insertions, 0 deletions
diff --git a/spec/services/groups/open_issues_count_service_spec.rb b/spec/services/groups/open_issues_count_service_spec.rb
new file mode 100644
index 00000000000..8bbb1c90c6b
--- /dev/null
+++ b/spec/services/groups/open_issues_count_service_spec.rb
@@ -0,0 +1,106 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Groups::OpenIssuesCountService, :use_clean_rails_memory_store_caching do
+  let_it_be(:group) { create(:group, :public)}
+  let_it_be(:project) { create(:project, :public, namespace: group) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:issue) { create(:issue, :opened, project: project) }
+  let_it_be(:confidential) { create(:issue, :opened, confidential: true, project: project) }
+  let_it_be(:closed) { create(:issue, :closed, project: project) }
+
+  subject { described_class.new(group, user) }
+
+  describe '#relation_for_count' do
+    before do
+      allow(IssuesFinder).to receive(:new).and_call_original
+    end
+
+    it 'uses the IssuesFinder to scope issues' do
+      expect(IssuesFinder)
+        .to receive(:new)
+        .with(user, group_id: group.id, state: 'opened', non_archived: true, include_subgroups: true, public_only: true)
+
+      subject.count
+    end
+  end
+
+  describe '#count' do
+    context 'when user is nil' do
+      it 'does not include confidential issues in the issue count' do
+        expect(described_class.new(group).count).to eq(1)
+      end
+    end
+
+    context 'when user is provided' do
+      context 'when user can read confidential issues' do
+        before do
+          group.add_reporter(user)
+        end
+
+        it 'returns the right count with confidential issues' do
+          expect(subject.count).to eq(2)
+        end
+      end
+
+      context 'when user cannot read confidential issues' do
+        before do
+          group.add_guest(user)
+        end
+
+        it 'does not include confidential issues' do
+          expect(subject.count).to eq(1)
+        end
+      end
+
+      context 'with different cache values' do
+        let(:public_count_key) { subject.cache_key(described_class::PUBLIC_COUNT_KEY) }
+        let(:under_threshold) { described_class::CACHED_COUNT_THRESHOLD - 1 }
+        let(:over_threshold) { described_class::CACHED_COUNT_THRESHOLD + 1 }
+
+        context 'when cache is empty' do
+          before do
+            Rails.cache.delete(public_count_key)
+          end
+
+          it 'refreshes cache if value over threshold' do
+            allow(subject).to receive(:uncached_count).and_return(over_threshold)
+
+            expect(subject.count).to eq(over_threshold)
+            expect(Rails.cache.read(public_count_key)).to eq(over_threshold)
+          end
+
+          it 'does not refresh cache if value under threshold' do
+            allow(subject).to receive(:uncached_count).and_return(under_threshold)
+
+            expect(subject.count).to eq(under_threshold)
+            expect(Rails.cache.read(public_count_key)).to be_nil
+          end
+        end
+
+        context 'when cached count is under the threshold value' do
+          before do
+            Rails.cache.write(public_count_key, under_threshold)
+          end
+
+          it 'does not refresh cache' do
+            expect(Rails.cache).not_to receive(:write)
+            expect(subject.count).to eq(under_threshold)
+          end
+        end
+
+        context 'when cached count is over the threshold value' do
+          before do
+            Rails.cache.write(public_count_key, over_threshold)
+          end
+
+          it 'does not refresh cache' do
+            expect(Rails.cache).not_to receive(:write)
+            expect(subject.count).to eq(over_threshold)
+          end
+        end
+      end
+    end
+  end
+end