test: restore and fix unit tests

tests/unit/views/notifications/Alerts.spec.js

@@ -0,0 +1,36 @@
+import Vue from 'vue'
+import { shallowMount, mount } from '@vue/test-utils'
+import CoreuiVue from '@coreui/vue'
+import Alerts from '@/views/notifications/Alerts'
+
+Vue.use(CoreuiVue)
+
+describe('Alerts.vue', () => {
+  it('has a name', () => {
+    expect(Alerts.name).toMatch('alerts')
+  })
+  it('has a created hook', () => {
+    expect(typeof Alerts.data).toMatch('function')
+  })
+  it('sets the correct default data', () => {
+    expect(typeof Alerts.data).toMatch('function')
+  })
+  it('is Vue instance', () => {
+    const wrapper = shallowMount(Alerts)
+    expect(wrapper.isVueInstance()).toBe(true)
+  })
+  it('is Alerts', () => {
+    const wrapper = shallowMount(Alerts)
+    expect(wrapper.is(Alerts)).toBe(true)
+  })
+  test('renders correctly', () => {
+    const wrapper = shallowMount(Alerts)
+    expect(wrapper.element).toMatchSnapshot()
+  })
+  it('should have methods', () => {
+    expect(typeof Alerts.methods.showAlert ).toEqual('function')
+    expect(Alerts.methods.showAlert()).toBeUndefined()
+    expect(typeof Alerts.methods.countDownChanged ).toEqual('function')
+    expect(Alerts.methods.countDownChanged(10)).toBeUndefined()
+  })
+})