F# - async tests don't actually run (false positive)

[jwosty]

I can't get TUnit to run F# async tests at all. To reproduce: just take any async example from the docs, or template projects, and try to make them fail, and observe that they do not (they indicate as passing):

member this.ThisTestShouldFail() = async {
    let result = 0 - 1
    do! check (Assert.That(result).IsPositive())
}

However if you change it to use Task instead, it indeed fails as expected:

let checkT (assertion: Assertion<'T>) = assertion.AssertAsync() :> Task

member this.ThisTestShouldFail() = task {
    let result = 0 - 1
    do! checkT (Assert.That(result).IsPositive())
}

Or explicitly use Async.RunSynchronously:

member this.ThisTestShouldFail() = Async.RunSynchronously <| async {
    let result = 0 - 1
    do! check (Assert.That(result).IsPositive())
}

I'm using .NET 10, TUnit 1.3.25, and TUnit.Assertions.FSharp 1.3.25.

[thomhurst]

Can you try v1.4.0 please

[jwosty]

This works now. Thank you!