1 files changed, 68 insertions, 0 deletions
diff --git a/spec/javascripts/serverless/components/functions_spec.js b/spec/javascripts/serverless/components/functions_spec.js
new file mode 100644
index 00000000000..85cfe71281f
--- /dev/null
+++ b/spec/javascripts/serverless/components/functions_spec.js
@@ -0,0 +1,68 @@
+import Vue from 'vue';
+
+import functionsComponent from '~/serverless/components/functions.vue';
+import mountComponent from 'spec/helpers/vue_mount_component_helper';
+import ServerlessStore from '~/serverless/stores/serverless_store';
+
+import { mockServerlessFunctions } from '../mock_data';
+
+const createComponent = (
+  functions,
+  installed = true,
+  loadingData = true,
+  hasFunctionData = true,
+) => {
+  const component = Vue.extend(functionsComponent);
+
+  return mountComponent(component, {
+    functions,
+    installed,
+    clustersPath: '/testClusterPath',
+    helpPath: '/helpPath',
+    loadingData,
+    hasFunctionData,
+  });
+};
+
+describe('functionsComponent', () => {
+  it('should render empty state when Knative is not installed', () => {
+    const vm = createComponent({}, false);
+
+    expect(vm.$el.querySelector('div.row').classList.contains('js-empty-state')).toBe(true);
+    expect(vm.$el.querySelector('h4.state-title').innerHTML.trim()).toEqual(
+      'Getting started with serverless',
+    );
+
+    vm.$destroy();
+  });
+
+  it('should render a loading component', () => {
+    const vm = createComponent({});
+
+    expect(vm.$el.querySelector('.gl-responsive-table-row')).not.toBe(null);
+    expect(vm.$el.querySelector('div.animation-container')).not.toBe(null);
+  });
+
+  it('should render empty state when there is no function data', () => {
+    const vm = createComponent({}, true, false, false);
+
+    expect(
+      vm.$el.querySelector('.empty-state, .js-empty-state').classList.contains('js-empty-state'),
+    ).toBe(true);
+
+    expect(vm.$el.querySelector('h4.state-title').innerHTML.trim()).toEqual(
+      'No functions available',
+    );
+
+    vm.$destroy();
+  });
+
+  it('should render the functions list', () => {
+    const store = new ServerlessStore(false, '/cluster_path', 'help_path');
+    store.updateFunctionsFromServer(mockServerlessFunctions);
+    const vm = createComponent(store.state.functions, true, false);
+
+    expect(vm.$el.querySelector('div.groups-list-tree-container')).not.toBe(null);
+    expect(vm.$el.querySelector('#env-global').classList.contains('has-children')).toBe(true);
+  });
+});