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264 lines
7.2 KiB
Plaintext
264 lines
7.2 KiB
Plaintext
'use strict';
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var expect = require('expect.js');
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var promiseRetry = require('../');
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var promiseDelay = require('sleep-promise');
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describe('promise-retry', function () {
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it('should call fn again if retry was called', function () {
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var count = 0;
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return promiseRetry(function (retry) {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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if (count <= 2) {
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retry(new Error('foo'));
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}
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return 'final';
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});
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}, { factor: 1 })
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.then(function (value) {
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expect(value).to.be('final');
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expect(count).to.be(3);
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}, function () {
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throw new Error('should not fail');
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});
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});
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it('should call fn with the attempt number', function () {
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var count = 0;
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return promiseRetry(function (retry, number) {
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count += 1;
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expect(count).to.equal(number);
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return promiseDelay(10)
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.then(function () {
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if (count <= 2) {
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retry(new Error('foo'));
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}
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return 'final';
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});
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}, { factor: 1 })
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.then(function (value) {
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expect(value).to.be('final');
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expect(count).to.be(3);
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}, function () {
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throw new Error('should not fail');
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});
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});
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it('should not retry on fulfillment if retry was not called', function () {
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var count = 0;
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return promiseRetry(function () {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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return 'final';
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});
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})
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.then(function (value) {
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expect(value).to.be('final');
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expect(count).to.be(1);
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}, function () {
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throw new Error('should not fail');
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});
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});
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it('should not retry on rejection if retry was not called', function () {
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var count = 0;
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return promiseRetry(function () {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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throw new Error('foo');
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});
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})
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err.message).to.be('foo');
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expect(count).to.be(1);
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});
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});
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it('should not retry on rejection if nr of retries is 0', function () {
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var count = 0;
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return promiseRetry(function (retry) {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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throw new Error('foo');
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})
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.catch(retry);
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}, { retries : 0 })
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err.message).to.be('foo');
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expect(count).to.be(1);
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});
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});
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it('should reject the promise if the retries were exceeded', function () {
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var count = 0;
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return promiseRetry(function (retry) {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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throw new Error('foo');
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})
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.catch(retry);
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}, { retries: 2, factor: 1 })
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err.message).to.be('foo');
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expect(count).to.be(3);
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});
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});
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it('should pass options to the underlying retry module', function () {
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var count = 0;
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return promiseRetry(function (retry) {
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return promiseDelay(10)
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.then(function () {
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if (count < 2) {
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count += 1;
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retry(new Error('foo'));
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}
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return 'final';
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});
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}, { retries: 1, factor: 1 })
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err.message).to.be('foo');
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});
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});
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it('should convert direct fulfillments into promises', function () {
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return promiseRetry(function () {
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return 'final';
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}, { factor: 1 })
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.then(function (value) {
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expect(value).to.be('final');
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}, function () {
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throw new Error('should not fail');
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});
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});
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it('should convert direct rejections into promises', function () {
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promiseRetry(function () {
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throw new Error('foo');
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}, { retries: 1, factor: 1 })
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err.message).to.be('foo');
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});
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});
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it('should not crash on undefined rejections', function () {
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return promiseRetry(function () {
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throw undefined;
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}, { retries: 1, factor: 1 })
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err).to.be(undefined);
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})
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.then(function () {
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return promiseRetry(function (retry) {
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retry();
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}, { retries: 1, factor: 1 });
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})
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err).to.be(undefined);
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});
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});
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it('should retry if retry() was called with undefined', function () {
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var count = 0;
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return promiseRetry(function (retry) {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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if (count <= 2) {
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retry();
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}
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return 'final';
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});
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}, { factor: 1 })
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.then(function (value) {
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expect(value).to.be('final');
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expect(count).to.be(3);
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}, function () {
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throw new Error('should not fail');
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});
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});
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it('should work with several retries in the same chain', function () {
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var count = 0;
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return promiseRetry(function (retry) {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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retry(new Error('foo'));
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})
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.catch(function (err) {
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retry(err);
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});
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}, { retries: 1, factor: 1 })
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.then(function () {
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throw new Error('should not succeed');
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}, function (err) {
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expect(err.message).to.be('foo');
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expect(count).to.be(2);
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});
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});
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it('should allow options to be passed first', function () {
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var count = 0;
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return promiseRetry({ factor: 1 }, function (retry) {
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count += 1;
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return promiseDelay(10)
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.then(function () {
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if (count <= 2) {
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retry(new Error('foo'));
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}
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return 'final';
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});
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}).then(function (value) {
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expect(value).to.be('final');
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expect(count).to.be(3);
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}, function () {
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throw new Error('should not fail');
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});
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});
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});
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