Expand coverage for "system checks" (#24216)

spec/lib/admin/system_check/elasticsearch_check_spec.rb

@@ -0,0 +1,100 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe Admin::SystemCheck::ElasticsearchCheck do
+  subject(:check) { described_class.new(user) }
+
+  let(:user) { Fabricate(:user) }
+
+  it_behaves_like 'a check available to devops users'
+
+  describe 'pass?' do
+    context 'when chewy is enabled' do
+      before { allow(Chewy).to receive(:enabled?).and_return(true) }
+
+      context 'when running version is present and high enough' do
+        before do
+          allow(Chewy.client).to receive(:info)
+            .and_return({ 'version' => { 'number' => '999.99.9' } })
+        end
+
+        it 'returns true' do
+          expect(check.pass?).to be true
+        end
+      end
+
+      context 'when running version is present and too low' do
+        context 'when compatible version is too low' do
+          before do
+            allow(Chewy.client).to receive(:info)
+              .and_return({ 'version' => { 'number' => '1.2.3', 'minimum_wire_compatibility_version' => '1.0' } })
+          end
+
+          it 'returns false' do
+            expect(check.pass?).to be false
+          end
+        end
+
+        context 'when compatible version is high enough' do
+          before do
+            allow(Chewy.client).to receive(:info)
+              .and_return({ 'version' => { 'number' => '1.2.3', 'minimum_wire_compatibility_version' => '99.9' } })
+          end
+
+          it 'returns true' do
+            expect(check.pass?).to be true
+          end
+        end
+      end
+
+      context 'when running version is missing' do
+        before do
+          client = instance_double(Elasticsearch::Transport::Client)
+          allow(client).to receive(:info).and_raise(Elasticsearch::Transport::Transport::Error)
+          allow(Chewy).to receive(:client).and_return(client)
+        end
+
+        it 'returns false' do
+          expect(check.pass?).to be false
+        end
+      end
+    end
+
+    context 'when chewy is not enabled' do
+      before { allow(Chewy).to receive(:enabled?).and_return(false) }
+
+      it 'returns true' do
+        expect(check.pass?).to be true
+      end
+    end
+  end
+
+  describe 'message' do
+    context 'when running version is present' do
+      before { allow(Chewy.client).to receive(:info).and_return({ 'version' => { 'number' => '999.99.9' } }) }
+
+      it 'sends class name symbol to message instance' do
+        allow(Admin::SystemCheck::Message).to receive(:new)
+          .with(:elasticsearch_version_check, anything)
+
+        check.message
+
+        expect(Admin::SystemCheck::Message).to have_received(:new)
+          .with(:elasticsearch_version_check, 'Elasticsearch 999.99.9 is running while 7.x is required')
+      end
+    end
+
+    context 'when running version is missing' do
+      it 'sends class name symbol to message instance' do
+        allow(Admin::SystemCheck::Message).to receive(:new)
+          .with(:elasticsearch_running_check)
+
+        check.message
+
+        expect(Admin::SystemCheck::Message).to have_received(:new)
+          .with(:elasticsearch_running_check)
+      end
+    end
+  end
+end