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See https://github.com/Matth...les/NullableEnumDataRow for a repro If you create a DataRow test with enum values and null is an acceptable value then NCrunch fails to run the test with a stack trace similar to the following Quote:System.ArgumentException: Object of type 'System.Int32' cannot be converted to type 'System.Nullable`1[NullableEnumDataRow.CountryCode]'.
at System.RuntimeType.TryChangeType(Object value, Binder binder, CultureInfo culture, Boolean needsSpecialCast)
at System.RuntimeType.CheckValue(Object value, Binder binder, CultureInfo culture, BindingFlags invokeAttr)
at System.Reflection.MethodBase.CheckArguments(StackAllocedArguments& stackArgs, ReadOnlySpan`1 parameters, Binder binder, BindingFlags invokeAttr, CultureInfo culture, Signature sig)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
at nCrunch.TestExecution.Reflection.Clr.ClrMethod.Invoke(Object instance, Object[] parameters)
The Visual Studio test runner has no problems with these tests and runs / reports on them fine
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