1 files changed, 37 insertions, 0 deletions
diff --git a/spec/javascripts/serverless/components/missing_prometheus_spec.js b/spec/javascripts/serverless/components/missing_prometheus_spec.js
new file mode 100644
index 00000000000..77aca03772b
--- /dev/null
+++ b/spec/javascripts/serverless/components/missing_prometheus_spec.js
@@ -0,0 +1,37 @@
+import missingPrometheusComponent from '~/serverless/components/missing_prometheus.vue';
+import { shallowMount } from '@vue/test-utils';
+
+const createComponent = missingData =>
+  shallowMount(missingPrometheusComponent, {
+    propsData: {
+      clustersPath: '/clusters',
+      helpPath: '/help',
+      missingData,
+    },
+  }).vm;
+
+describe('missingPrometheusComponent', () => {
+  let vm;
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  it('should render missing prometheus message', () => {
+    vm = createComponent(false);
+
+    expect(vm.$el.querySelector('.state-description').innerHTML.trim()).toContain(
+      'Function invocation metrics require Prometheus to be installed first.',
+    );
+
+    expect(vm.$el.querySelector('glbutton-stub').getAttribute('variant')).toEqual('success');
+  });
+
+  it('should render no prometheus data message', () => {
+    vm = createComponent(true);
+
+    expect(vm.$el.querySelector('.state-description').innerHTML.trim()).toContain(
+      'Invocation metrics loading or not available at this time.',
+    );
+  });
+});