[MonoDevelop] Issues debugging unit tests in MonoDevelop 2.4.2

Lluis Sanchez Gual slluis.devel at gmail.com
Mon Mar 14 05:28:55 EDT 2011

El dg 13 de 03 de 2011 a les 15:05 -0700, en/na emacarie va escriure:
> I have been developing on .NET with VS and Sharp Develop for a while, and
> have just been recently trying out Mono Develop so please be patient if this
> is a dumb question :)
>    I was trying out Mono Develop 2.4.2 on a fresh install of openSuse 11.4
> with a project I was working on.  The good news is that my project compiles
> and work perfectly :)
>    The bad news is that I am having a hard time developing using my
> preferred style of doing TDD.
>    I have two problems:
>      1)  When I debug unit tests either from the mono UI or the nunit test
> runner and I use the expression evaluator to evaluate a list I get the
> following error:
>          Unknown type 'System.Collections.Generic.CollectionDebuggerView' 
>          This occurs when I have a collection with a custom class (any
> custom class): i.e.
>           List objList = new List() {new TestClass(), new TestClass()} ;
>          The expression evaluator works correctly if I am debugging an
> executable using F5

It's hard to tell what's wrong without a specific test case. Could you
please file a bug (http://monodevelop.com/Bugs) and attach a simple test
project that reproduces the issue?

>     2)  When I debug a program, if there is some sort of error or loop, I
> can stop it using the Run->Stop (Shift + F5)
>          This option is not available when I am running my unit tests.  It
> looks like I need to let my unit tests to run to completion.  Sometimes when
> I do TDD I screw up a loop and I would like to break out of the code.  Is
> this possible some other way ?

You can stop the tests using the stop button available in the test
results pad. However, it won't work if the debugger is paused (for
example, after hitting a breakpoint). This is a known issue that has
been recently fixed.


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