Sometimes you need to test client-side JavaScript code that uses setTimeout() to do some work in the future. jsUnit contains the Clock.tick() method, which simulates time passing without causing the test to sleep. For example, this function will set up some callbacks to update a status message over the course of four seconds: function showProgress(status) { status.message = "Loading"; for (var time = 1000; time <= 3000; time+= 1000) { // Append a '.' to the message every second for 3 secs. setTimeout(function() { status.message += "."; }, time); } setTimeout(function() { // Special case for the 4th second. status.message = "Done"; }, 4000); }
The jsUnit test for this function would look like this: function testUpdatesStatusMessageOverFourSeconds() { Clock.reset(); // Clear any existing timeout functions on the event queue. var status = {}; showProgress(status); // Call our function. assertEquals("Loading", status.message); Clock.tick(2000);
// Call any functions on the event queue that have been // scheduled for the first two seconds. assertEquals("Loading..", status.message); Clock.tick(2000); // Same thing again, for the next two seconds. assertEquals("Done", status.message); }
This test will run very quickly - it does not require four seconds to run. Clock supports the functions setTimeout(), setInterval(), clearTimeout(), and clearInterval(). The Clock object is defined in jsUnitMockTimeout.js, which is in the same directory as jsUnitCore.js.
Mar 29, 2007 - function testUpdatesStatusMessageOverFourSeconds() {. Clock.reset(); // Clear any existing timeout functions on the event queue. var status = ...
Oct 2, 2008 - Sometimes you need to test client-side JavaScript code that uses setTimeout() to do some work in the future. jsUnit contains the Clock.tick() method, which simulates time passing without causing the test to sleep. For example, this func
Oct 2, 2008 - Sometimes you need to test client-side JavaScript code that uses ... Clock.reset(); // Clear any existing timeout functions on the event queue.
Dec 14, 2010 - Princeton University and NBER, Princeton University and University of .... Under time-homogeneity of the process X, the Markov hypothesis can ...
Jan 30, 2007 - For example, when it's hard to construct a sentence where the first word is the class under test, it suggests the test may be in the wrong place. And classes that are hard to describe in general often need to be broken down into smalle
Apr 25, 2007 - With a good set of tests in place, refactoring code is much easier, as you can quickly gain a lot of confidence by running the tests again and ...
associative, and grammatical context effects with identified and uniden- tified primes. Language & Speech, 33, 1-18. LUKATELA, G., & TURVEY, M. T. (l990a).
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