1 files changed, 96 insertions, 0 deletions
diff --git a/spec/controllers/health_controller_spec.rb b/spec/controllers/health_controller_spec.rb
new file mode 100644
index 00000000000..b8b6e0c3a88
--- /dev/null
+++ b/spec/controllers/health_controller_spec.rb
@@ -0,0 +1,96 @@
+require 'spec_helper'
+
+describe HealthController do
+  include StubENV
+
+  let(:token) { current_application_settings.health_check_access_token }
+  let(:json_response) { JSON.parse(response.body) }
+
+  before do
+    stub_env('IN_MEMORY_APPLICATION_SETTINGS', 'false')
+  end
+
+  describe '#readiness' do
+    context 'authorization token provided' do
+      before do
+        request.headers['TOKEN'] = token
+      end
+
+      it 'returns proper response' do
+        get :readiness
+        expect(json_response['db_check']['status']).to eq('ok')
+        expect(json_response['redis_check']['status']).to eq('ok')
+        expect(json_response['fs_shards_check']['status']).to eq('ok')
+        expect(json_response['fs_shards_check']['labels']['shard']).to eq('default')
+      end
+    end
+
+    context 'without authorization token' do
+      it 'returns proper response' do
+        get :readiness
+        expect(response.status).to eq(404)
+      end
+    end
+  end
+
+  describe '#liveness' do
+    context 'authorization token provided' do
+      before do
+        request.headers['TOKEN'] = token
+      end
+
+      it 'returns proper response' do
+        get :liveness
+        expect(json_response['db_check']['status']).to eq('ok')
+        expect(json_response['redis_check']['status']).to eq('ok')
+        expect(json_response['fs_shards_check']['status']).to eq('ok')
+      end
+    end
+
+    context 'without authorization token' do
+      it 'returns proper response' do
+        get :liveness
+        expect(response.status).to eq(404)
+      end
+    end
+  end
+
+  describe '#metrics' do
+    context 'authorization token provided' do
+      before do
+        request.headers['TOKEN'] = token
+      end
+
+      it 'returns DB ping metrics' do
+        get :metrics
+        expect(response.body).to match(/^db_ping_timeout 0$/)
+        expect(response.body).to match(/^db_ping_success 1$/)
+        expect(response.body).to match(/^db_ping_latency [0-9\.]+$/)
+      end
+
+      it 'returns Redis ping metrics' do
+        get :metrics
+        expect(response.body).to match(/^redis_ping_timeout 0$/)
+        expect(response.body).to match(/^redis_ping_success 1$/)
+        expect(response.body).to match(/^redis_ping_latency [0-9\.]+$/)
+      end
+
+      it 'returns file system check metrics' do
+        get :metrics
+        expect(response.body).to match(/^filesystem_access_latency{shard="default"} [0-9\.]+$/)
+        expect(response.body).to match(/^filesystem_accessible{shard="default"} 1$/)
+        expect(response.body).to match(/^filesystem_write_latency{shard="default"} [0-9\.]+$/)
+        expect(response.body).to match(/^filesystem_writable{shard="default"} 1$/)
+        expect(response.body).to match(/^filesystem_read_latency{shard="default"} [0-9\.]+$/)
+        expect(response.body).to match(/^filesystem_readable{shard="default"} 1$/)
+      end
+    end
+
+    context 'without authorization token' do
+      it 'returns proper response' do
+        get :metrics
+        expect(response.status).to eq(404)
+      end
+    end
+  end
+end