There is a bug in the unit testing framework in Visual Studio 2010 with unit testing. The bug appears in a very special circumstance involving an internal generic type.
The bug causes the following exception to be thrown:
System.InvalidProgramException: JIT Compiler encountered an internal limitation.
This occurs under the following circumstances:
- Type being tested is internal or private
- Method being tested is generic
- Method being tested has an out parameter
- Type accessor functionality used to access the internal type
The exception is not thrown if the InternalsVisibleToAttribute is assigned to the source assembly and the accessor type is not used; nor is it thrown if the method is not a generic method.
Bug #635093 has been added through Microsoft Connect