1 files changed, 56 insertions, 0 deletions
diff --git a/spec/lib/gitlab/redis/etag_cache_spec.rb b/spec/lib/gitlab/redis/etag_cache_spec.rb
new file mode 100644
index 00000000000..182a41bac80
--- /dev/null
+++ b/spec/lib/gitlab/redis/etag_cache_spec.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Redis::EtagCache, feature_category: :shared do
+  # Note: this is a pseudo-store in front of `Cache`, meant only as a tool
+  # to move away from `SharedState` for etag cache data. Thus, we use the
+  # same store configuration as the former.
+  let(:instance_specific_config_file) { "config/redis.cache.yml" }
+
+  include_examples "redis_shared_examples"
+
+  describe '#pool' do
+    let(:config_new_format_host) { "spec/fixtures/config/redis_new_format_host.yml" }
+    let(:config_new_format_socket) { "spec/fixtures/config/redis_new_format_socket.yml" }
+    let(:rails_root) { mktmpdir }
+
+    subject { described_class.pool }
+
+    before do
+      # Override rails root to avoid having our fixtures overwritten by `redis.yml` if it exists
+      allow(Gitlab::Redis::SharedState).to receive(:rails_root).and_return(rails_root)
+      allow(Gitlab::Redis::Cache).to receive(:rails_root).and_return(rails_root)
+
+      allow(Gitlab::Redis::SharedState).to receive(:config_file_name).and_return(config_new_format_host)
+      allow(Gitlab::Redis::Cache).to receive(:config_file_name).and_return(config_new_format_socket)
+    end
+
+    around do |example|
+      clear_pool
+      example.run
+    ensure
+      clear_pool
+    end
+
+    it 'instantiates an instance of MultiStore' do
+      subject.with do |redis_instance|
+        expect(redis_instance).to be_instance_of(::Gitlab::Redis::MultiStore)
+
+        expect(redis_instance.primary_store.connection[:id]).to eq("unix:///path/to/redis.sock/0")
+        expect(redis_instance.secondary_store.connection[:id]).to eq("redis://test-host:6379/99")
+
+        expect(redis_instance.instance_name).to eq('EtagCache')
+      end
+    end
+
+    it_behaves_like 'multi store feature flags', :use_primary_and_secondary_stores_for_etag_cache,
+      :use_primary_store_as_default_for_etag_cache
+  end
+
+  describe '#store_name' do
+    it 'returns the name of the Cache store' do
+      expect(described_class.store_name).to eq('Cache')
+    end
+  end
+end