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import { fullJitter } from './full.jitter';
describe(`Testing ${fullJitter.name}`, () => {
const delay = 100;
function arrayWith5FullJitterDelays() {
return Array(5).fill(delay).map(fullJitter)
}
describe(`when calling #fullJitter on the same delay multiple times`, () => {
it('all the delays are greater than or equal to 0', () => {
arrayWith5FullJitterDelays()
.forEach(value => expect(value).toBeGreaterThanOrEqual(0));
})
it('all the delays are less than or equal to the original delay', () => {
arrayWith5FullJitterDelays()
.forEach(value => expect(value).toBeLessThanOrEqual(delay));
})
it('the delays are not equal to one another', () => {
const delays = arrayWith5FullJitterDelays();
expect(new Set(delays).size).not.toBe(1);
})
it('the delays are integers', () => {
arrayWith5FullJitterDelays()
.forEach(value => expect(Number.isInteger(value)).toBe(true))
})
})
})
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