How to debug and improve Gallio

[Espen Albrektsen]

Hi there.

I am struggling with a unit test project where I get a typeloader-exception when Gallio is exploring the tests:

 [error] An exception was thrown while exploring tests.

Location: C:\Users\espen\Documents\AlbrektsenInnovasjon\Customers\Statkraft\Sirdas\SirdasTest\obj\Debug\SirdasTest.DLL

Reference: SirdasTest, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null

Details: System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

   at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)

   at System.Reflection.RuntimeModule.GetTypes()

   at System.Reflection.Assembly.GetTypes()

   at Gallio.Common.Reflection.Impl.NativeAssemblyWrapper.GetTypes() in c:\Server\Projects\MbUnit v3\Work\src\Gallio\Gallio\Common\Reflection\Impl\NativeAssemblyWrapper.cs:line 72

   

Obviously - the interesting stuff is in the LoaderExceptions - so I figured I would go and improve Gallio by printing out that information when this occurs.

So - I checked out Gallio (trunk) and opened up the Gallio.vs2010.sln in VS2012.

When I compiled, it complained that 

2>  Gallio.Host.vs2010 -> C:\Users\espen\Documents\AlbrektsenInnovasjon\Tools\mb-unit\v3\src\Gallio\Gallio.Host\bin\Gallio.Host.exe

2>  '"C:\Program Files (x86)\Microsoft SDKs\Windows\v8.0A\bin\corflags.exe"' is not recognized as an internal or external command,

Other than that, the compilation was OK.

So I executed build.bat like this:

 \mb-unit\v3>Build.bat "packages\Bundle Package.module" 

/p:TargetFrameworkSDKDirectory="C:\Program Files\Microsoft SDKs\Windows\v7.0A" /p:SkipSyncProjects=true /p:SkipSandCastle=true

/p:SkipArchive=true /p:SkipInstaller=true /p:SkipCodeCoverage=true /t:Compile

All was well.

I then noticed that I could not run my tests - so I added Echo and Icarus from the Extensions folder to the solution, and set Echo as my startup project - and used the path to my dll as argument. Gallio.Echo runs fine, but I get the following error message:

[warning] File 'SirdasTest.dll' is not supported by any installed test framework

.  It will be ignored.

        Location: C:\Users\espen\Documents\AlbrektsenInnovasjon\Customers\Statkr

aft\Sirdas\SirdasTest\bin\Debug\SirdasTest.dll

[ignored] Unsupported SirdasTest.dll

Detected a probable test framework assembly version mismatch.

Referenced test frameworks: 'MbUnit, Version=3.4.0.0, Culture=neutral, PublicKey

Token=eb9cfa67ee6ab36e'.

Supported test frameworks: 'MbUnit, Version=0.0.0.0'.

So - I went and updated my test project, and referenced the Gallio and MbUnit dlls that were compiled locally. SirdasTest.dll was now accepted - but I was still not able to reproduce the exception, because Gallio was unable to  start the Gallio.Host process.

After a little more digging, I found the "IsolatedProcessHostFactory" class, and realized that it uses the "wrong" path to Gallio.Host.x86.exe - somewhere, the path to Gallio\Bin\ is selected - instead of the path to Gallio.Host\bin

So I made the following change in DefaultRuntime.cs:

 // Force the runtime path to be set to where the primary Gallio assemblies and Gallio.Host.exe

// are located.

runtimeSetup.RuntimePath = Path.Combine(srcDir, @"Gallio\Gallio.Host\bin");

But now - I get a System.IO.FileLoadException in Gallio.Host.x86.exe :-(

So - I am on the verge of giving up here. Surely there is some trivial change I need to do, but as the amount of code in the Gallio project is pretty large - I am at a loss.

What am I doing wrong? 

All I really wanted to do was to make a small fix to NativeAssemblyWrapper.cs so that it displays more helpfull error messages...

Regards, Espen