alighasami
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33 lines
672 B
TypeScript
33 lines
672 B
TypeScript
/**
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* Retries the given assertion until it passes or the timeout is reached
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*
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* @example
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* await retryUntil(
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* () => expect(service.someState).toBe(true)
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* );
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*/
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export const retryUntil = async <T>(
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assertion: () => Promise<T> | T,
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{ intervalMs = 200, timeoutMs = 5000 } = {},
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): Promise<T> => {
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return await new Promise<T>((resolve, reject) => {
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const startTime = Date.now();
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const tryAgain = () => {
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setTimeout(async () => {
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try {
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resolve(await assertion());
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} catch (error) {
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if (Date.now() - startTime > timeoutMs) {
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reject(error);
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} else {
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tryAgain();
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}
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}
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}, intervalMs);
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};
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tryAgain();
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});
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};
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