159 lines
3.1 KiB
TypeScript
159 lines
3.1 KiB
TypeScript
import { compile } from '../../src'
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describe('compiler warnings', () => {
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describe('Transition', () => {
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function checkWarning(
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template: string,
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shouldWarn: boolean,
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message = `<Transition> expects exactly one child element or component.`
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) {
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const spy = jest.fn()
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compile(template.trim(), {
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hoistStatic: true,
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transformHoist: null,
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onError: err => {
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spy(err.message)
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}
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})
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if (shouldWarn) expect(spy).toHaveBeenCalledWith(message)
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else expect(spy).not.toHaveBeenCalled()
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}
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test('warns if multiple children', () => {
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checkWarning(
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`
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<transition>
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<div>hey</div>
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<div>hey</div>
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</transition>
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`,
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true
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)
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})
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test('warns with v-for', () => {
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checkWarning(
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`
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<transition>
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<div v-for="i in items">hey</div>
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</transition>
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`,
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true
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)
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})
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test('warns with multiple v-if + v-for', () => {
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checkWarning(
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`
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<transition>
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<div v-if="a" v-for="i in items">hey</div>
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<div v-else v-for="i in items">hey</div>
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</transition>
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`,
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true
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)
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})
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test('warns with template v-if', () => {
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checkWarning(
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`
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<transition>
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<template v-if="ok"></template>
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</transition>
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`,
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true
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)
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})
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test('warns with multiple templates', () => {
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checkWarning(
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`
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<transition>
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<template v-if="a"></template>
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<template v-else></template>
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</transition>
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`,
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true
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)
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})
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test('warns if multiple children with v-if', () => {
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checkWarning(
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`
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<transition>
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<div v-if="one">hey</div>
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<div v-if="other">hey</div>
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</transition>
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`,
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true
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)
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})
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test('does not warn with regular element', () => {
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checkWarning(
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`
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<transition>
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<div>hey</div>
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</transition>
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`,
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false
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)
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})
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test('does not warn with one single v-if', () => {
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checkWarning(
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`
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<transition>
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<div v-if="a">hey</div>
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</transition>
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`,
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false
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)
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})
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test('does not warn with v-if v-else-if v-else', () => {
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checkWarning(
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`
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<transition>
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<div v-if="a">hey</div>
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<div v-else-if="b">hey</div>
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<div v-else>hey</div>
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</transition>
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`,
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false
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)
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})
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test('does not warn with v-if v-else', () => {
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checkWarning(
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`
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<transition>
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<div v-if="a">hey</div>
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<div v-else>hey</div>
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</transition>
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`,
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false
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)
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})
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})
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})
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test('the v-if/else-if/else branchs in Transition should ignore comments', () => {
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expect(
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compile(`
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<transition>
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<div v-if="a">hey</div>
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<!-- this should be ignored -->
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<div v-else-if="b">hey</div>
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<!-- this should be ignored -->
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<div v-else>
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<p v-if="c"/>
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<!-- this should not be ignored -->
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<p v-else/>
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</div>
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</transition>
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`).code
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).toMatchSnapshot()
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})
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