| <!DOCTYPE html> |
| <title>Test simultaneous errors on workers.</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| promise_test(t => { |
| var workers = 4; |
| var promises = []; |
| |
| for (i = 0; i < workers; ++i) { |
| var worker = new Worker('support/throw-on-message-Worker.js'); |
| promises.push(new Promise(function(resolve, reject) { |
| var error = 0; |
| worker.onmessage = function(event) { |
| if (event.data === 'second') |
| resolve(error); |
| else if (event.data === 'error') |
| ++error; |
| } |
| })); |
| worker.postMessage('first'); |
| worker.postMessage('second'); |
| } |
| |
| return Promise.all(promises).then(e => { |
| var sum = 0; |
| for (var key in e) { |
| sum += e[key] |
| } |
| assert_equals(sum, workers); |
| }); |
| }); |
| </script> |
