1 files changed, 35 insertions, 0 deletions
diff --git a/spec/serializers/cluster_error_entity_spec.rb b/spec/serializers/cluster_error_entity_spec.rb
new file mode 100644
index 00000000000..43ec41adf14
--- /dev/null
+++ b/spec/serializers/cluster_error_entity_spec.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe ClusterErrorEntity do
+  describe '#as_json' do
+    let(:cluster) { create(:cluster, :provided_by_user, :group) }
+
+    subject { described_class.new(cluster).as_json }
+
+    context 'when connection_error is present' do
+      before do
+        allow(cluster).to receive(:connection_error).and_return(:connection_error)
+      end
+
+      it { is_expected.to eq({ connection_error: :connection_error, metrics_connection_error: nil, node_connection_error: nil }) }
+    end
+
+    context 'when metrics_connection_error is present' do
+      before do
+        allow(cluster).to receive(:metrics_connection_error).and_return(:http_error)
+      end
+
+      it { is_expected.to eq({ connection_error: nil, metrics_connection_error: :http_error, node_connection_error: nil }) }
+    end
+
+    context 'when node_connection_error is present' do
+      before do
+        allow(cluster).to receive(:node_connection_error).and_return(:unknown_error)
+      end
+
+      it { is_expected.to eq({ connection_error: nil, metrics_connection_error: nil, node_connection_error: :unknown_error }) }
+    end
+  end
+end