CODEWITHSUNDEEP
javascripttestingqunit
Trott
Trott

Reputation: 70095

Expecting a timeout in QUnit

I have an asynchronous QUnit test where the test should pass if the operation times out. (I'm testing that if you omit an optional errorCallback and do something that throws an error, basically nothing happens no matter how long you wait.)

How would I do that? If I use Qunit.config.testTimeout then the test will fail on timeout. I want to set a timeout and have the test succeed when the timeout is reached.

Upvotes: 4

Views: 2632

Answers (2)

FxIII
FxIII

Reputation: 418

This is how I do in these cases (roughly):

function timeout(assert,to,error){
  var done = assert.async();
  var a = setTimeout(function(){
    assert.equal(to,undefined,error);
    done();
  },to); 
  return function(){
    done();
    clearTimeout(a);
  };
}

then you can:

...
var done = timeout(assert,2000,"not joined");
r.join(function(data){
    assert.ok(true,"join confirmed");
    done();
})

You may agument timeout function to timeout(assert,to,toCB) and execute the toCB instead of my dummy assert.equal

Upvotes: 0

xmo
xmo

Reputation: 213

Why not just go with a setTimeout call making the test succeed?

e.g.:

expect(1);
stop();
doOperation(function () {
    start();
    ok(false, "should not have come back");
});
setTimeout(function () {
    start();
    ok(true);
}, timeoutValue);

Upvotes: 5

Related Questions