img.spec.js
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import { mount } from '@vue/test-utils'
import { BImg } from './img'
describe('img', () => {
it('has expected default structure', async () => {
const wrapper = mount(BImg)
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes().length).toBe(0)
expect(wrapper.attributes('width')).toBeUndefined()
expect(wrapper.attributes('height')).toBeUndefined()
wrapper.destroy()
})
it('has src attribute when prop src is set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar'
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.attributes('src')).toBeDefined()
expect(wrapper.attributes('src')).toEqual('/foo/bar')
expect(wrapper.attributes('width')).toBeUndefined()
expect(wrapper.attributes('height')).toBeUndefined()
wrapper.destroy()
})
it('default does not have attributes alt, width, or height', async () => {
const wrapper = mount(BImg, {
context: {
props: {
src: 'https://picsum.photos/600/300/?image=25'
}
}
})
expect(wrapper.attributes('alt')).toBeUndefined()
expect(wrapper.attributes('width')).toBeUndefined()
expect(wrapper.attributes('height')).toBeUndefined()
wrapper.destroy()
})
it('should have class "img-fluid" when prop fluid set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
fluid: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('img-fluid')
expect(wrapper.classes().length).toBe(1)
wrapper.destroy()
})
it('should have class "img-fluid" and "w-100" when prop fluid-grow set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
fluidGrow: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('img-fluid')
expect(wrapper.classes()).toContain('w-100')
expect(wrapper.classes().length).toBe(2)
wrapper.destroy()
})
it('should have class "img-thumbnail" when prop thumbnail set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
thumbnail: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('img-thumbnail')
expect(wrapper.classes().length).toBe(1)
wrapper.destroy()
})
it('should have class "rounded" when prop rounded true', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
rounded: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('rounded')
expect(wrapper.classes().length).toBe(1)
wrapper.destroy()
})
it('should have class "rounded-circle" when prop rounded=circle', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
rounded: 'circle'
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('rounded-circle')
expect(wrapper.classes().length).toBe(1)
wrapper.destroy()
})
it('should have class "float-left" when prop left set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
left: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('float-left')
expect(wrapper.classes().length).toBe(1)
wrapper.destroy()
})
it('should have class "float-right" when prop right set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
right: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('float-right')
expect(wrapper.classes().length).toBe(1)
wrapper.destroy()
})
it('should have classes "mx-auto" and "d-block" when prop center set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
center: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.classes()).toContain('mx-auto')
expect(wrapper.classes()).toContain('d-block')
expect(wrapper.classes().length).toBe(2)
wrapper.destroy()
})
it('has data URI when blank is true', async () => {
const wrapper = mount(BImg, {
propsData: {
blank: true
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.attributes('src')).toBeDefined()
expect(wrapper.attributes('src')).toContain('data:image/svg+xml;charset=UTF-8')
expect(wrapper.attributes('width')).toBe('1')
expect(wrapper.attributes('height')).toBe('1')
wrapper.destroy()
})
it('has color when blank is true and blank-color set', async () => {
const wrapper = mount(BImg, {
propsData: {
blank: true,
blankColor: 'blue'
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.attributes('src')).toBeDefined()
expect(wrapper.attributes('src')).toContain('data:image/svg+xml;charset=UTF-8')
expect(wrapper.attributes('src')).toContain('blue')
wrapper.destroy()
})
it('has width and height when blank is true and width/height props set', async () => {
const wrapper = mount(BImg, {
propsData: {
blank: true,
width: 300,
height: 200
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.attributes('src')).toBeDefined()
expect(wrapper.attributes('src')).toContain('data:image/svg+xml;charset=UTF-8')
expect(wrapper.attributes('width')).toBe('300')
expect(wrapper.attributes('height')).toBe('200')
wrapper.destroy()
})
it('has width and height when src set and width/height props set', async () => {
const wrapper = mount(BImg, {
propsData: {
src: '/foo/bar',
width: 300,
height: 200
}
})
expect(wrapper.element.tagName).toBe('IMG')
expect(wrapper.attributes('src')).toBeDefined()
expect(wrapper.attributes('src')).toEqual('/foo/bar')
expect(wrapper.attributes('width')).toBe('300')
expect(wrapper.attributes('height')).toBe('200')
wrapper.destroy()
})
it('should have alt attribute when `alt` prop is empty', async () => {
const wrapper = mount(BImg, {
propsData: {
alt: ''
}
})
expect(wrapper.attributes('alt')).toBeDefined()
expect(wrapper.attributes('alt')).toEqual('')
wrapper.destroy()
})
})