select.spec.js
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import {createVue, destroyVM, waitForIt} from '../util';
describe('Select.vue', () => {
let vm;
afterEach(() => {
destroyVM(vm);
});
describe('Props tests', () => {
it('should create a Select component with passed placeholder', done => {
const placeholder = 'Hi! Select something!';
vm = createVue({
template: `
<Select placeholder="${placeholder}">
<Option v-for="item in options" :value="item.value" :key="item.value">{{ item.label }}</Option>
</Select>
`,
data() {
return {
value: '',
options: [{value: 1, label: 'Foo'}, {value: 2, label: 'Bar'}]
};
}
});
vm.$nextTick(() => {
const placeholderSpan = vm.$el.querySelector('.ivu-select-placeholder');
expect(placeholderSpan.textContent).to.equal(placeholder);
expect(placeholderSpan.style.display).to.not.equal('none');
expect(vm.$children[0].showPlaceholder).to.equal(true);
done();
});
});
it('should create a Select component and take a pre-selected value', done => {
vm = createVue({
template: `
<Select :value="2">
<Option v-for="item in options" :value="item.value" :key="item.value">{{ item.label }}</Option>
</Select>
`,
data() {
return {
value: '',
options: [{value: 1, label: 'Foo'}, {value: 2, label: 'Bar'}]
};
}
});
vm.$nextTick(() => {
const selectedValueSpan = vm.$el.querySelector('.ivu-select-selected-value');
expect(selectedValueSpan.textContent).to.equal('Bar');
expect(selectedValueSpan.style.display).to.not.equal('none');
expect(vm.$children[0].selectedSingle).to.equal('Bar');
expect(vm.$children[0].model).to.equal(2);
done();
});
});
it('should accept normal characters', done => {
vm = createVue({
template: `
<Select :value="2">
<Option v-for="item in options" :value="item.value" :key="item.value">{{ item.label }}</Option>
</Select>
`,
data() {
return {
value: '',
options: [{value: 1, label: '> 100$'}, {value: 2, label: '< 100$'}]
};
}
});
vm.$nextTick(() => {
const selectedValueSpan = vm.$el.querySelector('.ivu-select-selected-value');
expect(selectedValueSpan.textContent).to.equal('< 100$');
done();
});
});
it('should use the value\'s label instead of placeholder when both are set', done => {
vm = createVue({
template: `
<Select placeholder="Choose anything!" :value="2">
<Option v-for="item in options" :value="item.value" :key="item.value">{{ item.label }}</Option>
</Select>
`,
data() {
return {
value: '',
options: [{value: 1, label: 'Foo'}, {value: 2, label: 'Bar'}]
};
}
});
vm.$nextTick(() => {
const placeholderSpan = vm.$el.querySelector('.ivu-select-placeholder');
const selectedValueSpan = vm.$el.querySelector('.ivu-select-selected-value');
expect(placeholderSpan.style.display).to.equal('none');
expect(selectedValueSpan.style.display).to.not.equal('none');
done();
});
});
it('should set different classes for different sizes', done => {
vm = createVue(`
<div>
<Select placeholder="Choose anything!"><Option v-for="item in []" :value="item" :key="item">{{item}}</Option></Select>
<Select placeholder="Choose anything!" size="large"><Option v-for="item in []" :value="item" :key="item">{{item}}</Option></Select>
<Select placeholder="Choose anything!" size="small"><Option v-for="item in []" :value="item" :key="item">{{item}}</Option></Select>
</div>
`);
vm.$nextTick(() => {
const [defaultSelect, largeSelect, smallSelect] = [...vm.$el.querySelectorAll('.ivu-select')];
expect(defaultSelect.className).to.equal('ivu-select ivu-select-single');
expect(largeSelect.classList.contains('ivu-select-large')).to.equal(true);
expect(smallSelect.classList.contains('ivu-select-small')).to.equal(true);
done();
});
});
it('should set new options', done => {
const laterOptions = [{value: 1, label: 'Foo'}, {value: 2, label: 'Bar'}];
vm = createVue({
template: `
<Select>
<Option v-for="item in options" :value="item.value" :key="item.value">{{ item.label }}</Option>
</Select>
`,
data() {
return {
value: '',
options: []
};
},
mounted() {
this.$nextTick(() => (this.options = laterOptions));
}
});
const condition = function() {
return vm.$children[0].options.length > 0;
};
const callback = function() {
if (vm.$children[0].options == 0) return setTimeout(waitForIt.bind(null, done), 50);
expect(JSON.stringify(vm.$children[0].options)).to.equal(JSON.stringify(laterOptions));
const renderedOptions = vm.$el.querySelectorAll('.ivu-select-dropdown-list li');
expect(renderedOptions.length).to.equal(laterOptions.length);
const labels = [...renderedOptions].map(el => el.textContent).join('<>');
const expected = laterOptions.map(o => o.label).join('<>');
expect(labels).to.equal(expected);
done();
};
waitForIt(condition, callback);
});
});
describe('Performance tests', () => {
it('should handle big numbers of options', done => {
const manyLaterOptions = Array.apply(null, Array(200)).map((_, i) => {
return {
value: i + 1,
label: Math.random().toString(36).slice(2).toUpperCase()
};
});
const start = +new Date();
vm = createVue({
template: `
<Select>
<Option v-for="item in options" :value="item.value" :key="item.value">{{ item.label }}</Option>
</Select>
`,
data() {
return {
value: '',
options: []
};
},
mounted() {
this.$nextTick(() => (this.options = manyLaterOptions));
}
});
const condition = function() {
return vm.$children[0].options.length == manyLaterOptions.length;
};
const callback = function() {
const end = +new Date();
const renderedOptions = vm.$el.querySelectorAll('.ivu-select-dropdown-list li');
expect(renderedOptions.length).to.equal(manyLaterOptions.length);
expect(end - start).to.be.not.above(1000);
done();
};
waitForIt(condition, callback);
});
});
});