Debugging C# / Mono tests

[nightblade9]

Hi,

I'm writing my tests in C# (LINQ and JSON.NET make some things much easier). Is there any way to debug C# tests? I can't seem to figure it out. (One of my tests is throwing an exception, and the real error is buried in the output tab somewhere.)

I tried adding breakpoints in VSCode and in the Godot IDE, and using the "Run All (With Debugger)" icon in the Tests tab; it doesn't seem to hit my breakpoints.

[nightblade9]

I tried writing a GDscript test, too. It looks like it's not very straight-forward to interop (e.g. can't call constructors etc.) Even when I comment out all my code and leave a single assert, running in debug mode doesn't stop on that breakpoint. (The test passes if I run it normally, and if I run it in debug mode, Godot shows a window for 8 seconds, then closes.)

I'm on 6.0.1 if that matters.

[AlexDarigan]

Note to myself: I wonder if this might have become an issue with the try/catch on execution (but I don't think that's how most c# debuggers works).

[AlexDarigan]

@nightblade9 Are you using an external editor? JetBrains Rider & Visual Studio Code should have ways to set up a debugger that will connect to godot automatically. Seems there is no built-in mono debugger, hence C# tests not respecting breakpoints.

[nightblade9]

Yes, I'm using VSCode with the "Mono Debug" extension.

[AlexDarigan]

You might want to check out 'Godot Tools for C#' as well. I think this is a Godot issue more than a WAT issue but if anyone who could previously debug tests can't any longer I'll reopen it.

[nightblade9]

To be clear: I'm able to debug my C# code. I'm not able to debug my C# tests. I don't know what option(s) I'm supposed to pick in the UI, to debug the tests. The built-in "Debug tests" option doesn't seem to attach to the debugger breakpoints, whether in VSCode or Godot itself.

Can you confirm:

1. What is the right workflow to add breakpoints (e.g. place in VScode or Godot)
2. That you can debug tests step by step?

[AlexDarigan]

You might have to run the wat gui as a scene itself (res://addons/wat/gui.tscn) and then run your tests from there.

[nightblade9]

Are you able to debug C# tests?

[nightblade9]

You might have to run the wat gui as a scene itself (res://addons/wat/gui.tscn) and then run your tests from there.

That doesn't seem to work, either. I placed breakpoints in VScode and in Godot. Where did you place yours?

Apart from the exception that throws (gui.gd, line 121: func _on_test_run_finished(results:Array) -> void: _plugin.get_editor...) - _plugin is null here - the breakpoints don't seem to be hit.

[Atlinx]

The error nightblade mentioned is this issue #344.