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[Charlie Poole <charlie@xxxxxxxxx>]

I am unable to reproduce this bug on either NUnit 2.5.7 or 2.5.10.

Following the instructions, the tests are never reloaded and therefore
never rerun because the build has failed. This is as it should be.
What's shown in your exception could occur if the test were rerun after
successfully replacing one assembly and failing to rebuild the others.
However, I can't make it happen following your instructions.

If there are any steps missing to cause the error, please fill them in
and reopen the bug.

Charlie

** Changed in: nunitv2
       Status: New => Incomplete

** Changed in: nunitv2
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/662937

Title:
  "Assembly Not Loaded" error, unhandled TypeLoadException

Status in NUnit V2 Test Framework:
  Invalid

Bug description:
  NUnit version 2.5.7.10213, GUI runner
  Visual Studio 2010 Pro, no plugins

  In a Visual Studio solution with 3 projects, NUnit sometimes crashes
  in the background while source code changes are being made.  The
  attached zip is a trimmed down SampleApp solution that you can use to
  reproduce the issue.

  Steps to reproduce:
  o VS2010 -> Load SampleApp solution. 
  o NUnit -> Load SampleApp.nunit.
  o NUnit -> Run all tests to ensure they pass.
  o VS2010 -> Do the following steps to cause NUnit to crash with an 
      unhandled exception.

    o SampleApp project -> Actuator.cs -> change Actuate method signature
        from: 
          void Actuate();
        to: 
          void Actuate(int timesToActuate);

    o F6 to build.  This results in one build error as expected.

    o SampleApp project -> Client.cs -> change statement in Actuate method 
        from: 
              actuator.Actuate();
        to: 
              actuator.Actuate(timesToActuate);

    o F6 to build.  This results in another build error, and NUnit
  crashes.

    + NUnit crash message:
        Title: "Assembly Not Loaded"
        Message: "System.TypeLoadException : Method 'Actuate' in type
                  'SampleApp.Mocks.MockActuator' from assembly
                  'SampleApp.Mocks, Version=1.0.0.0, Culture=neutral,
                  PublicKeyToken=null' does not have an implementation.
                  
                  For further information, use the Exception Details menu item."

    + NUnit Exception Details shows this additional info:
        System.TypeLoadException...
        
        Server stack trace: 
           at System.Reflection.RuntimeAssembly.GetExportedTypes(RuntimeAssembly assembly, ObjectHandleOnStack retTypes)
           at System.Reflection.RuntimeAssembly.GetExportedTypes()
           at NUnit.Core.CoreExtensions.InstallAdhocExtensions(Assembly assembly)
           at NUnit.Core.Builders.TestAssemblyBuilder.Load(String path)
           at NUnit.Core.Builders.TestAssemblyBuilder.Build(String assemblyName, Boolean autoSuites)
           at NUnit.Core.Builders.TestAssemblyBuilder.Build(String assemblyName, String testName, Boolean autoSuites)
           at NUnit.Core.TestSuiteBuilder.Build(TestPackage package)
           at NUnit.Core.SimpleTestRunner.Load(TestPackage package)
           at NUnit.Core.ProxyTestRunner.Load(TestPackage package)
           at NUnit.Core.ProxyTestRunner.Load(TestPackage package)
           at NUnit.Core.RemoteTestRunner.Load(TestPackage package)
           at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
           at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)
        
        Exception rethrown at [0]: 
           at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
           at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
           at NUnit.Core.TestRunner.Load(TestPackage package)
           at NUnit.Util.TestDomain.Load(TestPackage package)
           at NUnit.Core.ProxyTestRunner.Load(TestPackage package)
           at NUnit.Util.RemoteTestAgent.AgentRunner.Load(TestPackage package)
           at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
           at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)
        
        Exception rethrown at [1]: 
           at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
           at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
           at NUnit.Core.TestRunner.Load(TestPackage package)
           at NUnit.Core.ProxyTestRunner.Load(TestPackage package)
           at NUnit.Util.ProcessRunner.Load(TestPackage package)
           at NUnit.Util.TestLoader.ReloadTest(RuntimeFramework framework)

    o NUnit -> at this point opening the File menu or closing NUnit displays:
        "Unhandled exception has occurred in your application. If you click
         Continue, the application will ignore this error and attempt to continue.
         If you click Quit, the application will close immediately.
         
         No connection could be made because the target machine actively
         refused it 127.0.0.1:49900."
         
    o Running NUnit again without fixing the source code gets the same errors.
    o Changing Client.cs first and then Actuator.cs gets the same errors.
    
    + In all these cases MockActuatorTests.cs and MockActuator.cs are left
        unchanged.  They must be changed also (or first) in order to resolve
        or avoid the issue.

  Let me know if I can provide additional information.

  Regards
  Joel

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