[Bug]: Unable to Access AdvanceByMs() TestScheduler Extension

[bfmyr4]

Describe the bug 🐞

After update to 23.1.1 from 22.3.1, getting:
'TestScheduler' does not contain a definition for 'AdvanceByMs' and no accessible extension method 'AdvanceByMs' accepting a first argument of type 'TestScheduler' could be found (are you missing a using directive or an assembly reference?)

I looked at the 22.3.1...23.1.1 diff and it looks the TestScheduler extension methods were moved to a new static class in ReactiveUI.Testing.Reactive. I tried adding an import to that namespace, and it still doesn't see it. I don't see a separate nuget for it, so maybe it was accidentally omitted from ReactiveUI.Testing Nuget?

Perhaps I'm not supposed to be using that extension.

Step to reproduce

Update to 23.1.1 from 22.3.1 and attempt to use AdvanceByMs() extension to Microsoft.Reactive.Testing.TestScheduler.

Reproduction repository

https://github.com/reactiveui/ReactiveUI

Expected behavior

Should be able to see AdvanceByMs() extension.

Screenshots 🖼️

No response

IDE

No response

Operating system

Windows

Version

11

Device

No response

ReactiveUI Version

23.1.1

Additional information ℹ️

No response

[glennawatson]

Those methods are in In the system.reactive based testing package never been in reactiveui

https://www.nuget.org/packages/Microsoft.Reactive.Testing

Microsoft.Reactive.Testing 6.1.0

Reactive Extensions (Rx) for .NET - Testing Library

[bfmyr4]

Well, I've had a reference to Microsoft.Reactive.Testing already. I'm not finding AdvanceByMs() there.

Sure looks like it was in ReactiveUI.Testing.SchedulerExtensions in 22.3.1 (lines 181-188) because that where Go To Definition takes you.

[glennawatson]

Let me look into it later today. Very early here so haven't had any coffee :)

[bfmyr4]

No worries. If I shouldn't be using it, and you want to keep it internal that's fine. Just figured I'd let you know.

[glennawatson]

No I will open them up in a point release.

[glennawatson]

The TestScheduler extensions (AdvanceByMs, AdvanceToMs, OnNextAt, etc.) have been moved to a separate package: ReactiveUI.Testing.Reactive.

To use them, add a reference to the new package:

dotnet add package ReactiveUI.Testing.Reactive

The extensions are now in the ReactiveUI.Testing namespace (fixed in #4301), so no additional using directive is needed beyond what you already have.

This separation was intentional -- ReactiveUI.Testing no longer depends on Microsoft.Reactive.Testing, keeping the base testing package lighter for projects that do not need TestScheduler extensions.

This should be available in the next release.