Ganjar Setia M
55 lines
1.5 KiB
JavaScript
55 lines
1.5 KiB
JavaScript
import Vue from 'vue'
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import { shallowMount } from '@vue/test-utils';
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import CoreuiVue from '@coreui/vue'
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import ProgressBars from '@/views/base/ProgressBars'
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Vue.use(CoreuiVue)
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jest.useFakeTimers()
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describe('ProgressBars.vue', () => {
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// mount it once, to make test efficient & faster
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const wrapper = shallowMount(ProgressBars)
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it('has a name', () => {
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expect(ProgressBars.name).toBe('ProgressBars')
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})
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it('has a created hook', () => {
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expect(typeof ProgressBars.data).toMatch('function')
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})
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it('sets the correct default data', () => {
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expect(typeof ProgressBars.data).toMatch('function')
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})
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it('is Vue instance', () => {
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expect(wrapper.vm).toBeTruthy()
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})
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it('is ProgressBars', () => {
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expect(wrapper.findComponent(ProgressBars)).toBeTruthy()
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})
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test('renders correctly', () => {
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// mock Math.random() to always return 1
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jest.spyOn(global.Math, 'random').mockReturnValue(1)
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expect(wrapper.element).toMatchSnapshot()
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// restore Math.random()
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jest.spyOn(global.Math, 'random').mockRestore()
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})
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it('should have methods', () => {
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expect(typeof ProgressBars.methods.clicked ).toEqual('function')
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expect(ProgressBars.methods.clicked()).toBeUndefined()
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})
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it('should execute mounted', () => {
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// mock interval 2000 ms
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jest.advanceTimersByTime(2000);
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expect(setInterval).toHaveBeenCalled();
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expect(setInterval).toHaveBeenLastCalledWith(expect.any(Function), 2000)
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})
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// this test should be the last
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it('should be destroyed', () => {
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wrapper.destroy()
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})
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})
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