/
waitFor.spec.js
60 lines (45 loc) · 1.12 KB
/
waitFor.spec.js
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import {delay} from './delay'
import {waitFor} from './waitFor'
const howLong = 1000
test('true', async () => {
let counter = 0
const condition = x => {
counter++
return counter > x
}
const result = await waitFor(condition, howLong)(6)
expect(result).toEqual(true)
})
test('false', async () => {
let counter = 0
const condition = x => {
counter++
return counter > x
}
const result = await waitFor(condition, howLong)(12)
expect(result).toEqual(false)
})
test('async condition | true', async () => {
let counter = 0
const condition = async x => {
counter++
await delay(10)
return counter > x
}
const result = await waitFor(condition, howLong)(6)
expect(result).toEqual(true)
})
test('async condition | false', async () => {
let counter = 0
const condition = async x => {
counter++
await delay(10)
return counter > x
}
const result = await waitFor(condition, howLong)(12)
expect(result).toEqual(false)
})
test('throws when fn is not function', () => {
const fn = 'foo'
expect(() => waitFor(fn, howLong)()).toThrowWithMessage(Error, 'R.waitFor')
})