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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
// deselected by setting its "selected" prop via JavaScript.
function hasMultiSelectBug () {
const s = document.createElement('select')
s.setAttribute('multiple', '')
const o = document.createElement('option')
s.appendChild(o)
o.selected = true
o.selected = false
return o.selected !== false
}
/**
* setting <select>'s value in IE9 doesn't work
* we have to manually loop through the options
*/
function updateSelect (el, value) {
const options = el.options
let 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')
updateSelect(vm.$el, '2')
triggerEvent(vm.$el, 'change')
expect(vm.test).toBe(2)
}).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 value bindings (Array 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">option {{ 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>'
}).$mount()
const opts = vm.$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()
const 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('should work with multiple binding', (done) => {
const spy = jasmine.createSpy()
const vm = new Vue({
data: {
isMultiple: true,
selections: ['1']
},
template:
'<select v-model="selections" :multiple="isMultiple">' +
'<option value="1">item 1</option>' +
'<option value="2">item 2</option>' +
'</select>',
watch: {
selections: spy
}
}).$mount()
document.body.appendChild(vm.$el)
vm.$el.options[1].selected = true
triggerEvent(vm.$el, 'change')
waitForUpdate(() => {
expect(spy).toHaveBeenCalled()
expect(vm.selections).toEqual(['1', '2'])
}).then(done)
})
it('should not have multiple attr with falsy values except \'\'', () => {
const vm = new Vue({
template:
'<div>' +
'<select id="undefined" :multiple="undefined"></select>' +
'<select id="null" :multiple="null"></select>' +
'<select id="false" :multiple="false"></select>' +
'<select id="string" :multiple="\'\'"></select>' +
'</div>'
}).$mount()
expect(vm.$el.querySelector('#undefined').multiple).toEqual(false)
expect(vm.$el.querySelector('#null').multiple).toEqual(false)
expect(vm.$el.querySelector('#false').multiple).toEqual(false)
expect(vm.$el.querySelector('#string').multiple).toEqual(true)
})
it('multiple with static template', () => {
const vm = new Vue({
template:
'<select multiple>' +
'<option selected>a</option>' +
'<option selected>b</option>' +
'<option selected>c</option>' +
'</select>'
}).$mount()
const 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.$el)
const selects = vm.$el.getElementsByTagName('select')
const 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 primitive 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>'
}).$mount()
const opts = vm.$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 multiple with non-Array value', done => {
new Vue({
data: {
test: 'meh'
},
template:
'<select v-model="test" multiple></select>'
}).$mount()
// IE warns on a setTimeout as well
setTimeout(() => {
expect('<select multiple v-model="test"> expects an Array value for its binding, but got String')
.toHaveBeenWarned()
done()
}, 0)
})
it('should work with option value that has circular reference', done => {
const circular = {}
circular.self = circular
const vm = new Vue({
data: {
test: 'b',
circular
},
template:
'<select v-model="test">' +
'<option :value="circular">a</option>' +
'<option>b</option>' +
'<option>c</option>' +
'</select>'
}).$mount()
document.body.appendChild(vm.$el)
expect(vm.test).toBe('b')
expect(vm.$el.value).toBe('b')
expect(vm.$el.childNodes[1].selected).toBe(true)
vm.test = circular
waitForUpdate(function () {
expect(vm.$el.childNodes[0].selected).toBe(true)
}).then(done)
})
// #6112
it('should not set non-matching value to undefined if options did not change', done => {
const vm = new Vue({
data: {
test: '1'
},
template:
'<select v-model="test">' +
'<option>a</option>' +
'</select>'
}).$mount()
vm.test = '2'
waitForUpdate(() => {
expect(vm.test).toBe('2')
}).then(done)
})
// #6193
it('should not trigger change event when matching option can be found for each value', done => {
const spy = jasmine.createSpy()
const vm = new Vue({
data: {
options: ['1']
},
computed: {
test: {
get () {
return '1'
},
set () {
spy()
}
}
},
template:
'<select v-model="test">' +
'<option :key="opt" v-for="opt in options" :value="opt">{{ opt }}</option>' +
'</select>'
}).$mount()
vm.options = ['1', '2']
waitForUpdate(() => {
expect(spy).not.toHaveBeenCalled()
}).then(done)
})
// #6903
describe('should correctly handle v-model when the vnodes are the same', () => {
function makeInstance (foo) {
return new Vue({
data: {
foo: foo,
options: ['b', 'c', 'd'],
value: 'c'
},
template:
'<div>' +
'<select v-if="foo" data-attr>' +
'<option selected>a</option>' +
'</select>' +
'<select v-else v-model="value">' +
'<option v-for="option in options" :value="option">{{ option }}</option>' +
'</select>' +
'</div>'
}).$mount()
}
it('register v-model', done => {
const vm = makeInstance(true)
expect(vm.$el.firstChild.selectedIndex).toBe(0)
vm.foo = false
waitForUpdate(() => {
expect(vm.$el.firstChild.selectedIndex).toBe(1)
}).then(done)
})
it('remove v-model', done => {
const vm = makeInstance(false)
expect(vm.$el.firstChild.selectedIndex).toBe(1)
vm.foo = true
waitForUpdate(() => {
expect(vm.$el.firstChild.selectedIndex).toBe(0)
}).then(done)
})
})
// #7928
it('should correctly handle option with date value', done => {
const vm = new Vue({
data: {
dates: [
new Date(1520000000000),
new Date(1522000000000),
new Date(1516000000000)
],
selectedDate: null
},
template:
'<div>' +
'<select v-model="selectedDate">' +
'<option v-for="(date, i) in dates" :key="i" :value="date">' +
'{{date}}' +
'</option>' +
'</select>' +
'</div>'
}).$mount()
vm.selectedDate = vm.dates[2]
waitForUpdate(() => {
expect(vm.$el.firstChild.selectedIndex).toBe(2)
}).then(done)
})
})