54 lines
1.5 KiB
TypeScript
54 lines
1.5 KiB
TypeScript
import { ssrRenderList } from '../src/helpers/ssrRenderList'
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describe('ssr: renderList', () => {
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let stack: string[] = []
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beforeEach(() => {
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stack = []
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})
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it('should render items in an array', () => {
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ssrRenderList(['1', '2', '3'], (item, index) =>
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stack.push(`node ${index}: ${item}`)
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)
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expect(stack).toEqual(['node 0: 1', 'node 1: 2', 'node 2: 3'])
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})
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it('should render characters of a string', () => {
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ssrRenderList('abc', (item, index) => stack.push(`node ${index}: ${item}`))
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expect(stack).toEqual(['node 0: a', 'node 1: b', 'node 2: c'])
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})
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it('should render integers 1 through N when given a number N', () => {
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ssrRenderList(3, (item, index) => stack.push(`node ${index}: ${item}`))
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expect(stack).toEqual(['node 0: 1', 'node 1: 2', 'node 2: 3'])
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})
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it('should render properties in an object', () => {
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ssrRenderList({ a: 1, b: 2, c: 3 }, (item, key, index) =>
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stack.push(`node ${index}/${key}: ${item}`)
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)
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expect(stack).toEqual(['node 0/a: 1', 'node 1/b: 2', 'node 2/c: 3'])
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})
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it('should render an item for entry in an iterable', () => {
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const iterable = function*() {
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yield 1
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yield 2
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yield 3
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}
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ssrRenderList(iterable(), (item, index) =>
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stack.push(`node ${index}: ${item}`)
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)
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expect(stack).toEqual(['node 0: 1', 'node 1: 2', 'node 2: 3'])
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})
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it('should not render items when source is undefined', () => {
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ssrRenderList(undefined, (item, index) =>
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stack.push(`node ${index}: ${item}`)
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)
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expect(stack).toEqual([])
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})
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})
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