"roSGNode.ObserveField: no active host node" when trying to use a timer

[ZeeD]

If there is a timer in one of the tests, it fails to run.

minimal scenario:

sub myCb(e)
    print e
end sub

function myFunc()
    timer = createObject("roSGNode", "Timer")
    timer.observeField("fire", "myCb")
    timer.duration = 0.01
    timer.repeat = false
    timer.control = "start"
    return timer
end function

namespace tests
    @suite()
    class MyTests extends rooibos.BaseTestSuite
        @describe("myTest")
        @it("should")
        function _()
            ret = myFunc()
        end function
    end class
end namespace

all I got is

[2022-09-12T16:30:45.091Z] BRIGHTSCRIPT: ERROR: roSGNode.ObserveField: no active host node: pkg:/source/myTest.spec.brs(7)

[georgejecook]

Sg render thread does not execute in rooibos unit tests, so observe and other calls cannot work. You need to make a node test for this.

Even then, I'm not sure it will run async tests like this.