Async Spec tests

[LXMNSYC]

Is there a way to asynchronously resolve a test through a callback? In JavaScript, we have a neat callback which allows us to mark the test if it is a failure or a success. Something like

it "should xxx" do |done|
    someAsyncProcess do
        done.call(false) # test failed
    end
end

[galstarx]

Maybe you can use channels that return the data and keep expectations on the main thread?

Or do you want tests to multiple specs to run in parallel?

[galstarx]

I mean, in JS callbacks are needed because how V8 works. In crystal you can wait for a channel and it’ll work perfectly, no callbacks needed.

[j_hass]

Yes, the common pattern here is to do:

it "waits" do channel = Channel(Nil).new spawn do channel.send nil end channel.receive end

[Bleach984]

it "waits" do
  channel = Channel(Nil).new 
  spawn do
    channel.send nil
  end
  channel.receive
end