Async tests appear not to work.

[davidjohnstoncoles]

I have a simple async test here:

https://jsperf.app/xikime

async function foo() {
	
}

await foo();

These tests just don't run, no error is shown on the browser page, but in the console we see:

VM5570:6 Uncaught SyntaxError: Failed to execute 'insertBefore' on 'Node': await is only valid in async functions and the top level bodies of modules
    at ee (page-66952ebfa7796636.js:1:5240)
    at J (page-66952ebfa7796636.js:1:4166)
    at i (page-66952ebfa7796636.js:1:8793)
    at el (page-66952ebfa7796636.js:1:10202)
    at el (page-66952ebfa7796636.js:1:11275)
    at new Z (page-66952ebfa7796636.js:1:3745)
    at Z (page-66952ebfa7796636.js:1:3719)
    at R.run (page-66952ebfa7796636.js:1:14611)
    at f (page-66952ebfa7796636.js:1:6181)
    at e37a0b60-8a534e0eeb30b5db.js:1:13593

[rd13]

@davidjohnstoncoles It's a bit unclear what the "async" checkbox does and I should add some examples.

It adds a global method deferred.resolve() to signal to the test runner that the current test run is complete.

So for your example this would work: https://jsperf.app/xikime/2

[dwjohnston]

@rd13 Oh wow.

Yes that definitely needs to be added to the documentation.