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| /* global describe, it, Event */
import assert from 'assert'
import React from 'react'
import {mount} from 'enzyme'
import Upload from '../'
const file = {
name: 'update.hbg',
size: 1234
}
const noop = () => {}
describe('Upload', () => {
it('should render component with default text', () => {
const wrapper = mount(<Upload onChange={noop} />)
assert.equal(wrapper.find('.Upload-textBefore').text(), '')
assert.equal(wrapper.find('.Upload-textAfter').text(), 'or drag file in this area')
})
it('should render component with custom textBefore', () => {
const wrapper = mount(<Upload textBefore={'hello world'} onChange={noop} />)
assert.equal(wrapper.find('.Upload-textBefore').text(), 'hello world')
})
it('should render component with custom textAfter', () => {
const wrapper = mount(<Upload textAfter={'hello world'} onChange={noop} />)
assert.equal(wrapper.find('.Upload-textAfter').text(), 'hello world')
})
it('should propagate disabled property to input type file and button', () => {
const wrapper = mount(<Upload disabled onChange={noop} />)
assert(wrapper.find('.Upload-fileInput').props().disabled)
assert(wrapper.find('.Button').props().disabled)
})
it('should ignore drag and drop events when disabled', () => {
const wrapper = mount(<Upload disabled onChange={noop} />)
wrapper.find('.Upload').simulate('dragenter', {
dataTransfer: {
files: [file]
}
})
assert(wrapper.find('.Upload').hasClass('is-disabled'))
assert.equal(wrapper.find('.Upload').hasClass('is-over-dropzone'), false)
})
it('should propagate accept property to input type file', () => {
const wrapper = mount(<Upload onChange={noop} accept='.jpg' />)
assert.equal(wrapper.find('.Upload-fileInput').props().accept, '.jpg')
})
it('should not change style for not accepted file types', () => {
const wrapper = mount(<Upload onChange={noop} accept='.md' />)
wrapper.find('.Upload').simulate('dragenter', {
dataTransfer: {
files: [{
name: 'image.png',
type: 'image/png'
}]
}
})
assert.equal(wrapper.find('.Upload').hasClass('is-over-dropzone'), false)
})
it('should change style for accepted file types', () => {
const wrapper = mount(<Upload onChange={noop} accept='.png' />)
wrapper.find('.Upload').simulate('dragenter', {
dataTransfer: {
files: [{
name: 'image.png',
type: 'image/png'
}]
}
})
assert(wrapper.find('.Upload').hasClass('is-over-dropzone'))
})
it('should toggle "is-over-window" css class on document dragenter and dragleave', () => {
const wrapper = mount(<Upload onChange={noop} />)
document.dispatchEvent(new Event('dragenter'))
assert(wrapper.find('.Upload').hasClass('is-over-window'))
document.dispatchEvent(new Event('dragleave'))
assert.equal(wrapper.find('.Upload').hasClass('is-over-window'), false)
})
it('should toggle "is-over-dropzone" css class on dropzone dragenter and dragleave', () => {
const wrapper = mount(<Upload onChange={noop} />)
wrapper.find('.Upload').simulate('dragenter')
assert(wrapper.find('.Upload').hasClass('is-over-dropzone'))
wrapper.find('.Upload').simulate('dragleave')
assert.equal(wrapper.find('.Upload').hasClass('is-over-dropzone'), false)
})
it('should remove dragenter event listener when component is unmounted', () => {
const wrapper = mount(<Upload onChange={noop} />)
const instance = wrapper.find('.Upload')
// simulate unmount by calling method directly
wrapper.unmount()
// now simulate dragenter event and make sure component does not react anymore
document.dispatchEvent(new Event('dragenter'))
assert.equal(instance.hasClass('is-over-window'), false)
})
it('should remove dragleave event listener when component is unmounted', () => {
const wrapper = mount(<Upload onChange={noop} />)
const instance = wrapper.find('.Upload')
document.dispatchEvent(new Event('dragenter'))
// make sure component has correct class
assert(instance.hasClass('is-over-window'))
// now simulate unmount
wrapper.unmount()
// now simulate dragleave event and make sure component does not loose its class
document.dispatchEvent(new Event('dragleave'))
assert(instance.hasClass('is-over-window'))
})
it('should propagate button click event to input element', () => {
const wrapper = mount(<Upload onChange={noop} />)
// attach dummy click event handler to input dom element
let clicked = false
wrapper.find('.Upload-fileInput').node.addEventListener('click', () => { clicked = true })
// simulate click event on top level node which is the div
wrapper.find('.Upload-fileInput').simulate('click')
assert.equal(clicked, false)
wrapper.find('.Button').simulate('click')
assert(clicked)
})
it('should not allow dropping multiple files in firefox', () => {
const wrapper = mount(<Upload onChange={noop} />)
wrapper.find('.Upload').simulate('dragenter', {
dataTransfer: {
mozItemCount: 2
}
})
assert.equal(wrapper.find('.Upload').hasClass('is-over-dropzone'), false)
})
it('should not allow dropping multiple files in chrome', () => {
const wrapper = mount(<Upload onChange={noop} />)
wrapper.find('.Upload').simulate('dragenter', {
dataTransfer: {
items: [file, file]
}
})
assert.equal(wrapper.find('.Upload').hasClass('is-over-dropzone'), false)
})
it('should allow dropping a single file', () => {
const wrapper = mount(<Upload onChange={noop} />)
wrapper.find('.Upload').simulate('dragenter', {
dataTransfer: {
items: [file]
}
})
assert(wrapper.find('.Upload').hasClass('is-over-dropzone'))
})
it('should handle dragover event on dropzone', () => {
const wrapper = mount(<Upload onChange={noop} />)
let preventDefaultCalled = false
wrapper.find('.Upload').simulate('dragover', {
preventDefault: () => {
preventDefaultCalled = true
}
})
assert(preventDefaultCalled)
})
it('should not allow dragging multiple files over dropzone in firefox', () => {
const wrapper = mount(<Upload onChange={noop} />)
let preventDefaultCalled = false
wrapper.find('.Upload').simulate('dragover', {
preventDefault: () => {
preventDefaultCalled = true
},
dataTransfer: {
mozItemCount: 2
}
})
assert.equal(preventDefaultCalled, false)
})
it('should handle drop event on dropzone', () => {
let name = ''
const callback = (files) => {
name = files[0].name
}
const wrapper = mount(<Upload onChange={callback} />)
wrapper.find('.Upload').simulate('drop', {
dataTransfer: {
files: [file]
}
})
assert.equal(name, 'update.hbg')
})
})
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