test: restore and fix unit tests

tests/unit/views/base/Table.spec.js

@@ -0,0 +1,24 @@
+import Vue from 'vue'
+import { mount, shallowMount } from '@vue/test-utils';
+import CoreuiVue from '@coreui/vue'
+import Table from '@/views/base/Table'
+
+Vue.use(CoreuiVue)
+
+describe('Table.vue', () => {
+  it('has a name', () => {
+    expect(Table.name).toMatch('TableWrapper')
+  })
+  it('is Vue instance', () => {
+    const wrapper = mount(Table)
+    expect(wrapper.isVueInstance()).toBe(true)
+  })
+  it('is Table', () => {
+    const wrapper = mount(Table)
+    expect(wrapper.is(Table)).toBe(true)
+  })
+  test('renders correctly', () => {
+    const wrapper = shallowMount(Table)
+    expect(wrapper.element).toMatchSnapshot()
+  })
+})