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28 lines
1.1 KiB
TypeScript
28 lines
1.1 KiB
TypeScript
import { getNextRetryMs } from '../../src/utils/retries'
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jest.useFakeTimers()
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jest.spyOn(global, 'setTimeout')
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describe('getNextRetryMs', () => {
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it('returns the correct number of milliseconds with a multiplier of 1', () => {
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expect(getNextRetryMs(500, 1, 1)).toBe(500)
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expect(getNextRetryMs(500, 1, 2)).toBe(500)
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expect(getNextRetryMs(500, 1, 3)).toBe(500)
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expect(getNextRetryMs(500, 1, 4)).toBe(500)
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expect(getNextRetryMs(500, 1, 5)).toBe(500)
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})
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it('returns the correct number of milliseconds with a multiplier of 2', () => {
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expect(getNextRetryMs(4000, 2, 1)).toBe(4000)
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expect(getNextRetryMs(4000, 2, 2)).toBe(8000)
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expect(getNextRetryMs(4000, 2, 3)).toBe(16000)
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expect(getNextRetryMs(4000, 2, 4)).toBe(32000)
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expect(getNextRetryMs(4000, 2, 5)).toBe(64000)
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})
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it('throws on attempt below 0', () => {
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expect(() => getNextRetryMs(4000, 2, 0)).toThrowError('Attempts are indexed starting with 1')
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expect(() => getNextRetryMs(4000, 2, -1)).toThrowError('Attempts are indexed starting with 1')
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})
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})
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