Tests fail when run with vstest.console.exe but pass when run from VS2015.
Findings: The problematic scenario includes reference to Microsoft.WindowsAzure.ServiceRuntime.dll and usage of the RoleEnvironment class. When the RoleEnvironment class is used in a test project without JustMock and runned from vstest.console the exception will be thrown as well. Here is the exact exception:
System.TypeInitializationException: The type initializer for 'Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment' threw an exception. ---> System.TypeInitializationException: The type initializer for '<Module>' threw an exception. ---> <CrtImplementationDetails>.ModuleLoadException: The C++ module failed to load while attempting to initialize the default appdomain.
---> System.Runtime.InteropServices.COMException: Invalid operation. (Exception from HRESULT: 0x80131022)
Stack Trace:
at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
at <CrtImplementationDetails>.GetDefaultDomain()
at <CrtImplementationDetails>.DoCallBackInDefaultDomain(IntPtr function, Void* cookie)
at <CrtImplementationDetails>.LanguageSupport.InitializeDefaultAppDomain(LanguageSupport* )
at <CrtImplementationDetails>.LanguageSupport._Initialize(LanguageSupport* )
at <CrtImplementationDetails>.LanguageSupport.Initialize(LanguageSupport* )
--- End of inner exception stack trace ---
at <CrtImplementationDetails>.LanguageSupport.Initialize(LanguageSupport* )
at .cctor()
--- End of inner exception stack trace ---
at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.InitializeEnvironment()
at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment..cctor()
--- End of inner exception stack trace ---
at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.get_IsAvailable()
Workaround: the vstest.console.exe could be started with parameter /InIsolation, which runs the tests in an isolated process. Here is the link to the command line options: https://msdn.microsoft.com/en-us/library/jj155796.aspx