1 files changed, 84 insertions, 0 deletions
diff --git a/spec/javascripts/frequent_items/components/frequent_items_list_spec.js b/spec/javascripts/frequent_items/components/frequent_items_list_spec.js
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+++ b/spec/javascripts/frequent_items/components/frequent_items_list_spec.js
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+import Vue from 'vue';
+import frequentItemsListComponent from '~/frequent_items/components/frequent_items_list.vue';
+import mountComponent from 'spec/helpers/vue_mount_component_helper';
+import { mockFrequentProjects } from '../mock_data';
+
+const createComponent = (namespace = 'projects') => {
+  const Component = Vue.extend(frequentItemsListComponent);
+
+  return mountComponent(Component, {
+    namespace,
+    items: mockFrequentProjects,
+    isFetchFailed: false,
+    hasSearchQuery: false,
+    matcher: 'lab',
+  });
+};
+
+describe('FrequentItemsListComponent', () => {
+  let vm;
+
+  beforeEach(() => {
+    vm = createComponent();
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('computed', () => {
+    describe('isListEmpty', () => {
+      it('should return `true` or `false` representing whether if `items` is empty or not with projects', () => {
+        vm.items = [];
+        expect(vm.isListEmpty).toBe(true);
+
+        vm.items = mockFrequentProjects;
+        expect(vm.isListEmpty).toBe(false);
+      });
+    });
+
+    describe('fetched item messages', () => {
+      it('should return appropriate empty list message based on value of `localStorageFailed` prop with projects', () => {
+        vm.isFetchFailed = true;
+        expect(vm.listEmptyMessage).toBe('This feature requires browser localStorage support');
+
+        vm.isFetchFailed = false;
+        expect(vm.listEmptyMessage).toBe('Projects you visit often will appear here');
+      });
+    });
+
+    describe('searched item messages', () => {
+      it('should return appropriate empty list message based on value of `searchFailed` prop with projects', () => {
+        vm.hasSearchQuery = true;
+        vm.isFetchFailed = true;
+        expect(vm.listEmptyMessage).toBe('Something went wrong on our end.');
+
+        vm.isFetchFailed = false;
+        expect(vm.listEmptyMessage).toBe('Sorry, no projects matched your search');
+      });
+    });
+  });
+
+  describe('template', () => {
+    it('should render component element with list of projects', done => {
+      vm.items = mockFrequentProjects;
+
+      Vue.nextTick(() => {
+        expect(vm.$el.classList.contains('frequent-items-list-container')).toBe(true);
+        expect(vm.$el.querySelectorAll('ul.list-unstyled').length).toBe(1);
+        expect(vm.$el.querySelectorAll('li.frequent-items-list-item-container').length).toBe(5);
+        done();
+      });
+    });
+
+    it('should render component element with empty message', done => {
+      vm.items = [];
+
+      Vue.nextTick(() => {
+        expect(vm.$el.querySelectorAll('li.section-empty').length).toBe(1);
+        expect(vm.$el.querySelectorAll('li.frequent-items-list-item-container').length).toBe(0);
+        done();
+      });
+    });
+  });
+});