111 lines
2.7 KiB
JavaScript
111 lines
2.7 KiB
JavaScript
(function (exports) {
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'use strict';
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var batchAsync = exports.batchAsync || require('./batchasync.js').batchAsync;
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function testBatch() {
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var timeouts = [100, 80, 20, 500, 50, 30, 200, 300];
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var tasks = timeouts.map(function(timeout, i) {
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return function() {
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return promiseTimeout(timeout).then(function() {
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console.log('task:', i, timeouts[i]);
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return i;
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});
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};
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});
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var len = tasks.length;
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return batchAsync(4, tasks, function(task) {
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return task();
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})
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.then(function(results) {
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console.info('results:', results);
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if (len !== results.length) {
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throw new Error('result set too small');
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}
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if (results.join(' ') !== results.sort().join(' ')) {
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throw new Error('result set out-of-order');
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}
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})
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.then(function() {
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return batchAsync(4, [], 'not a function').then(function() {
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console.info('Handled ZERO tasks correctly.');
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});
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})
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.then(function() {
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return batchAsync(4, timeouts, function(x) {
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return x;
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}).then(function(results) {
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if (results.join(' ') !== timeouts.join(' ')) {
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console.error(results);
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throw new Error('sync result set out-of-order');
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}
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console.info('Handled sync tasks correctly.');
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});
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})
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.then(function() {
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return batchAsync(4, tasks, function(task) {
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if (0 === Math.floor(Math.random() * 2) % 2) {
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throw new Error('any async error will do');
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}
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return task();
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})
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.then(function(results) {
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console.log(results);
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var e = new Error('async rejection should not pass!');
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e.FAIL = true;
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throw e;
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})
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.catch(function(e) {
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if (e.FAIL) {
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throw e;
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}
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console.info('Pass: Exception thrown when expected');
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});
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})
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.then(function() {
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return batchAsync(4, timeouts, function() {
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if (0 === Math.floor(Math.random() * 2) % 2) {
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throw new Error('any sync error will do');
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}
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return null;
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})
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.then(function(results) {
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var e = new Error('should not pass sync exception!');
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e.FAIL = true;
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throw e;
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})
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.catch(function(e) {
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if (e.FAIL) {
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throw e;
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}
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})
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.then(function() {
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// wait for the tasks the error left dangling to print their message
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console.info('Pass: Promise rejected when expected');
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return promiseTimeout(1000);
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});
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});
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}
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function promiseTimeout(timeout) {
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return new Promise(function(resolve, reject) {
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setTimeout(resolve, timeout);
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});
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}
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testBatch()
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.then(function() {
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console.info('PROBABLY PASSED');
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console.info(
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'We tested what could be tested without knowing Passed what could be tested Do the results make sense?'
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);
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})
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.catch(function(e) {
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console.error('FAIL!');
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console.error(e);
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process.exit(500);
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});
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}('undefined' !== typeof window ? window : module.exports));
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