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model-select.spec.js
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model-select.spec.js
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import Vue from 'vue'
import { looseEqual } from 'shared/util'
// Android 4.4 Chrome 30 has the bug that a multi-select option cannot be
// deseleted by setting its "selected" prop via JavaScript.
function hasMultiSelectBug () {
var s = document.createElement('select')
s.setAttribute('multiple', '')
s.innerHTML = '<option>1</option>'
s.options[0].selected = true
s.options[0].selected = false
return s.options[0].selected !== false
}
/**
* setting <select>'s value in IE9 doesn't work
* we have to manually loop through the options
*/
function updateSelect (el, value) {
var options = el.options
var i = options.length
while (i--) {
if (looseEqual(getValue(options[i]), value)) {
options[i].selected = true
break
}
}
}
function getValue (option) {
return '_value' in option
? option._value
: option.value || option.text
}
describe('Directive v-model select', () => {
it('should work', done => {
const vm = new Vue({
data: {
test: 'b'
},
template:
'<select v-model="test">' +
'<option>a</option>' +
'<option>b</option>' +
'<option>c</option>' +
'</select>'
}).$mount()
document.body.appendChild(vm.$el)
expect(vm.test).toBe('b')
expect(vm.$el.value).toBe('b')
expect(vm.$el.childNodes[1].selected).toBe(true)
vm.test = 'c'
waitForUpdate(function () {
expect(vm.$el.value).toBe('c')
expect(vm.$el.childNodes[2].selected).toBe(true)
updateSelect(vm.$el, 'a')
triggerEvent(vm.$el, 'change')
expect(vm.test).toBe('a')
}).then(done)
})
it('should work with value bindings', done => {
const vm = new Vue({
data: {
test: 2
},
template:
'<select v-model="test">' +
'<option value="1">a</option>' +
'<option :value="2">b</option>' +
'<option :value="3">c</option>' +
'</select>'
}).$mount()
document.body.appendChild(vm.$el)
expect(vm.$el.value).toBe('2')
expect(vm.$el.childNodes[1].selected).toBe(true)
vm.test = 3
waitForUpdate(function () {
expect(vm.$el.value).toBe('3')
expect(vm.$el.childNodes[2].selected).toBe(true)
updateSelect(vm.$el, '1')
triggerEvent(vm.$el, 'change')
expect(vm.test).toBe('1')
}).then(done)
})
it('should work with value bindings (object loose equal)', done => {
const vm = new Vue({
data: {
test: { a: 2 }
},
template:
'<select v-model="test">' +
'<option value="1">a</option>' +
'<option :value="{ a: 2 }">b</option>' +
'<option :value="{ a: 3 }">c</option>' +
'</select>'
}).$mount()
document.body.appendChild(vm.$el)
expect(vm.$el.childNodes[1].selected).toBe(true)
vm.test = { a: 3 }
waitForUpdate(function () {
expect(vm.$el.childNodes[2].selected).toBe(true)
updateSelect(vm.$el, '1')
triggerEvent(vm.$el, 'change')
expect(vm.test).toBe('1')
updateSelect(vm.$el, { a: 2 })
triggerEvent(vm.$el, 'change')
expect(vm.test).toEqual({ a: 2 })
}).then(done)
})
it('should work with v-for', done => {
const vm = new Vue({
data: {
test: 'b',
opts: ['a', 'b', 'c']
},
template:
'<select v-model="test">' +
'<option v-for="o in opts">{{ o }}</option>' +
'</select>'
}).$mount()
document.body.appendChild(vm.$el)
expect(vm.test).toBe('b')
expect(vm.$el.value).toBe('b')
expect(vm.$el.childNodes[1].selected).toBe(true)
vm.test = 'c'
waitForUpdate(function () {
expect(vm.$el.value).toBe('c')
expect(vm.$el.childNodes[2].selected).toBe(true)
updateSelect(vm.$el, 'a')
triggerEvent(vm.$el, 'change')
expect(vm.test).toBe('a')
// update v-for opts
vm.opts = ['d', 'a']
}).then(() => {
expect(vm.$el.childNodes[0].selected).toBe(false)
expect(vm.$el.childNodes[1].selected).toBe(true)
}).then(done)
})
it('should work with v-for & value bindings', done => {
const vm = new Vue({
data: {
test: 2,
opts: [1, 2, 3]
},
template:
'<select v-model="test">' +
'<option v-for="o in opts" :value="o">optio {{ o }}</option>' +
'</select>'
}).$mount()
document.body.appendChild(vm.$el)
expect(vm.$el.value).toBe('2')
expect(vm.$el.childNodes[1].selected).toBe(true)
vm.test = 3
waitForUpdate(function () {
expect(vm.$el.value).toBe('3')
expect(vm.$el.childNodes[2].selected).toBe(true)
updateSelect(vm.$el, 1)
triggerEvent(vm.$el, 'change')
expect(vm.test).toBe(1)
// update v-for opts
vm.opts = [0, 1]
}).then(() => {
expect(vm.$el.childNodes[0].selected).toBe(false)
expect(vm.$el.childNodes[1].selected).toBe(true)
}).then(done)
})
it('should work with select which has no default selected options', (done) => {
const spy = jasmine.createSpy()
const vm = new Vue({
data: {
id: 4,
list: [1, 2, 3],
testChange: 5
},
template:
'<div>' +
'<select @change="test" v-model="id">' +
'<option v-for="item in list" :value="item">{{item}}</option>' +
'</select>' +
'{{testChange}}' +
'</div>',
methods: {
test: spy
}
}).$mount()
document.body.appendChild(vm.$el)
vm.testChange = 10
waitForUpdate(() => {
expect(spy.calls.count()).toBe(0)
}).then(done)
})
if (!hasMultiSelectBug()) {
it('multiple', done => {
const vm = new Vue({
data: {
test: ['b']
},
template:
'<select v-model="test" multiple>' +
'<option>a</option>' +
'<option>b</option>' +
'<option>c</option>' +
'</select>'
}).$mount()
var opts = vm.$el.options
expect(opts[0].selected).toBe(false)
expect(opts[1].selected).toBe(true)
expect(opts[2].selected).toBe(false)
vm.test = ['a', 'c']
waitForUpdate(() => {
expect(opts[0].selected).toBe(true)
expect(opts[1].selected).toBe(false)
expect(opts[2].selected).toBe(true)
opts[0].selected = false
opts[1].selected = true
triggerEvent(vm.$el, 'change')
expect(vm.test).toEqual(['b', 'c'])
}).then(done)
})
it('multiple + v-for', done => {
const vm = new Vue({
data: {
test: ['b'],
opts: ['a', 'b', 'c']
},
template:
'<select v-model="test" multiple>' +
'<option v-for="o in opts">{{ o }}</option>' +
'</select>'
}).$mount()
var opts = vm.$el.options
expect(opts[0].selected).toBe(false)
expect(opts[1].selected).toBe(true)
expect(opts[2].selected).toBe(false)
vm.test = ['a', 'c']
waitForUpdate(() => {
expect(opts[0].selected).toBe(true)
expect(opts[1].selected).toBe(false)
expect(opts[2].selected).toBe(true)
opts[0].selected = false
opts[1].selected = true
triggerEvent(vm.$el, 'change')
expect(vm.test).toEqual(['b', 'c'])
// update v-for opts
vm.opts = ['c', 'd']
}).then(() => {
expect(opts[0].selected).toBe(true)
expect(opts[1].selected).toBe(false)
expect(vm.test).toEqual(['c']) // should remove 'd' which no longer has a matching option
}).then(done)
})
}
it('multiple with static template', () => {
const vm = new Vue({
template:
'<select multiple>' +
'<option selected>a</option>' +
'<option selected>b</option>' +
'<option selected>c</option>' +
'</select>'
}).$mount()
var opts = vm.$el.options
expect(opts[0].selected).toBe(true)
expect(opts[1].selected).toBe(true)
expect(opts[2].selected).toBe(true)
})
it('multiple selects', (done) => {
const spy = jasmine.createSpy()
const vm = new Vue({
data: {
selections: ['', ''],
selectBoxes: [
[
{ value: 'foo', text: 'foo' },
{ value: 'bar', text: 'bar' }
],
[
{ value: 'day', text: 'day' },
{ value: 'night', text: 'night' }
]
]
},
watch: {
selections: spy
},
template:
'<div>' +
'<select v-for="(item, index) in selectBoxes" v-model="selections[index]">' +
'<option v-for="element in item" v-bind:value="element.value" v-text="element.text"></option>' +
'</select>' +
'<span ref="rs">{{selections}}</span>' +
'</div>'
}).$mount()
document.body.appendChild(vm.$el)
var selects = vm.$el.getElementsByTagName('select')
var select0 = selects[0]
select0.options[0].selected = true
triggerEvent(select0, 'change')
waitForUpdate(() => {
expect(spy).toHaveBeenCalled()
expect(vm.selections).toEqual(['foo', ''])
}).then(done)
})
it('.number modifier', () => {
const vm = new Vue({
data: {
test: 2
},
template:
'<select v-model.number="test">' +
'<option value="1">a</option>' +
'<option :value="2">b</option>' +
'<option :value="3">c</option>' +
'</select>'
}).$mount()
document.body.appendChild(vm.$el)
updateSelect(vm.$el, '1')
triggerEvent(vm.$el, 'change')
expect(vm.test).toBe(1)
})
it('should respect different pritive type value', (done) => {
const vm = new Vue({
data: {
test: 0
},
template:
'<select v-model.number="test">' +
'<option value="">a</option>' +
'<option value="0">b</option>' +
'<option value="1">c</option>' +
'<option value="false">c</option>' +
'<option value="true">c</option>' +
'</select>'
}).$mount()
var opts = vm.$el.options
expect(opts[0].selected).toBe(false)
expect(opts[1].selected).toBe(true)
expect(opts[2].selected).toBe(false)
expect(opts[3].selected).toBe(false)
expect(opts[4].selected).toBe(false)
vm.test = 1
waitForUpdate(() => {
expect(opts[0].selected).toBe(false)
expect(opts[1].selected).toBe(false)
expect(opts[2].selected).toBe(true)
expect(opts[3].selected).toBe(false)
expect(opts[4].selected).toBe(false)
vm.test = ''
}).then(() => {
expect(opts[0].selected).toBe(true)
expect(opts[1].selected).toBe(false)
expect(opts[2].selected).toBe(false)
expect(opts[3].selected).toBe(false)
expect(opts[4].selected).toBe(false)
vm.test = false
}).then(() => {
expect(opts[0].selected).toBe(false)
expect(opts[1].selected).toBe(false)
expect(opts[2].selected).toBe(false)
expect(opts[3].selected).toBe(true)
expect(opts[4].selected).toBe(false)
vm.test = true
}).then(() => {
expect(opts[0].selected).toBe(false)
expect(opts[1].selected).toBe(false)
expect(opts[2].selected).toBe(false)
expect(opts[3].selected).toBe(false)
expect(opts[4].selected).toBe(true)
}).then(done)
})
it('should warn inline selected', () => {
const vm = new Vue({
data: {
test: null
},
template:
'<select v-model="test">' +
'<option selected>a</option>' +
'</select>'
}).$mount()
expect(vm.$el.selectedIndex).toBe(-1)
expect('inline selected attributes on <option> will be ignored when using v-model')
.toHaveBeenWarned()
})
it('should warn multiple with non-Array value', done => {
new Vue({
data: {
test: 'meh'
},
template:
'<select v-model="test" multiple></select>'
}).$mount()
// IE warns on a setTimeout as well
setTimeout(() => {
expect('<select multiple v-model="test"> expects an Array value for its binding, but got String')
.toHaveBeenWarned()
done()
}, 0)
})
})