skeleton-img.spec.js
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import { mount } from '@vue/test-utils'
import { BSkeletonImg } from './skeleton-img'
describe('skeleton-img', () => {
it('component has correct default layout', async () => {
const wrapper = mount(BSkeletonImg)
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.classes()).toContain('b-aspect')
expect(wrapper.find('.b-aspect-sizer').element.style.paddingBottom).toBe('56.25%')
expect(wrapper.find('.b-aspect-content > .b-skeleton-img').exists()).toBe(true)
expect(wrapper.find('.b-aspect-content > .b-skeleton-img').classes()).toContain(
'b-skeleton-animate-wave'
)
wrapper.destroy()
})
it('`aspect` prop applies correct padding', async () => {
const wrapper = mount(BSkeletonImg, {
propsData: {
aspect: '4:3'
}
})
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.classes()).toContain('b-aspect')
expect(wrapper.find('.b-aspect-sizer').exists()).toBe(true)
expect(wrapper.find('.b-aspect-sizer').element.style.paddingBottom).toBe('75%')
wrapper.destroy()
})
it('`no-aspect` prop removes wrapping `b-aspect`', async () => {
const wrapper = mount(BSkeletonImg, {
propsData: {
noAspect: true
}
})
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.classes()).not.toContain('b-aspect')
expect(wrapper.classes()).toContain('b-skeleton-img')
expect(wrapper.find('.b-aspect-sizer').exists()).toBe(false)
expect(wrapper.find('.b-aspect-content').exists()).toBe(false)
wrapper.destroy()
})
it('`width` prop applies correct style to element', async () => {
const wrapper = mount(BSkeletonImg, {
propsData: {
noAspect: true,
width: '200px'
}
})
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.element.style.width).toBe('200px')
wrapper.destroy()
})
it('`height` prop applies correct style to element', async () => {
const wrapper = mount(BSkeletonImg, {
propsData: {
noAspect: true,
height: '200px'
}
})
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.element.style.height).toBe('200px')
wrapper.destroy()
})
it('`variant` prop adds `bg-[variant]` class', async () => {
const wrapper = mount(BSkeletonImg, {
propsData: {
variant: 'primary'
}
})
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.find('.b-aspect-content > .b-skeleton-img').classes()).toContain('bg-primary')
wrapper.destroy()
})
it('has class `b-skeleton-animate-fade` when `animation="fade"` is set', async () => {
const wrapper = mount(BSkeletonImg, {
propsData: {
animation: 'fade'
}
})
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.find('.b-aspect-content > .b-skeleton-img').classes()).toContain(
'b-skeleton-animate-fade'
)
wrapper.destroy()
})
it('`card-img` applies the correct class', async () => {
const wrapper = mount(BSkeletonImg, {
propsData: {
cardImg: 'top'
}
})
expect(wrapper).toBeDefined()
expect(wrapper.element.tagName).toBe('DIV')
expect(wrapper.find('.b-aspect-content > .b-skeleton-img').classes()).toContain('card-img-top')
wrapper.destroy()
})
it('accepts custom classes', async () => {
const wrapper = mount(BSkeletonImg, {
context: {
class: ['foobar']
}
})
expect(wrapper.find('.b-aspect-content > .b-skeleton-img').exists()).toBe(true)
expect(wrapper.find('.b-aspect-content > .b-skeleton-img').classes()).toContain('foobar')
wrapper.destroy()
})
})