I am having troubles trying to use assert.throws in my Mocha unit tests,  I have this method:  var getMetadatas = function (file, callback) {   fs.readFile(file, {encoding: 'utf-8'}, function(err, data){     // stuff       if (somethingWentWr...
So I am trying to test out a function, it is a client-side function(un-finish) which is why it is embedded in the test itself(until I can figure out a better solution).  The problem I am having is when I test to see if the function is throwing a Type...
This has bugged me for a while. I throw an exception on an assertion failure, but this is only helpful if I can actually catch the exception (in which case I alert the user). If I can't catch the exception, then   I'm relying on the browser t...
I use console.assert at a lot of places in my Javascript library. It's a good practice from software development point of view (it's easiest form of unit testing). But I would like to know how much it will affect the performance of my library...
When using qunit to test, asserting that a value is specifically, exactly undefined is difficult. I am looking for a function that will:   compare against undefined so that a value of undefined satisfies the assertion, but anything else (including nu...
I have a function,  Edit1 - Updated function with real one because the previous one was simplified synchronous function and the code would have worked as correctly pointed by @AlexMA in the comments     'returnSuccessOrFailure': function () {...
This is a statement I get when I write a code of binary search in javascript. I dont know whats the error If someone could sort this.          var doSearch = function(array, targetValue) {         var min = 0;     var max = array.length - 1;     var...
I'm writing an assert function.  How do I cache #assert if it doesn't exist yet?  function assert( outcome, description ) {    if (!$('#assert').length) {       $('body').append('<ul id="assert"></ul>&#...
in my Symfony 4 project I have a view that allows me to select a value from a drop-down list.  I want that each time I select one, there is the image associated with the value that is displayed.  Each image is saved as an asset which has been compile...
it has been my understanding that execution of it calls in a test suite happen sequentially i.e. that one call won't execute until the previous has completed.  however, I'm seeing disagreeable behaviour where the callback for a second request...

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