public static void TargetException()
{
Exception ex = new TargetException();
Assert.NotNull(ex);
Assert.Equal(ex.GetType(), typeof(TargetException));
string s = "My exception";
ex = new TargetException();
Assert.NotNull(ex);
Assert.Equal(ex.GetType(), typeof(TargetException));
Assert.Equal(s, ex.Message);
s = "My exception";
Exception innerException = new Exception();
ex = new TargetException(s, innerException);
Assert.NotNull(ex);
Assert.Equal(ex.GetType(), typeof(TargetException));
Assert.Equal(innerException, ex.InnerException);
Assert.Equal(s, ex.Message);
// Throw the exception from a method.
try
{
ThrowTargetException(s, innerException);
Assert.True(false);
}
catch (TargetException tex)
{
Assert.Equal(innerException, tex.InnerException);
Assert.Equal(s, tex.Message);
}
catch (Exception)
{
Assert.True(false);
}
}
private static object CallMethodWithByRefParametersOrThrow(Type type, object target, string methodName, object[] args, TargetException te)
{
MethodInfo[] mis = type.GetMethods();
foreach(MethodInfo mi in mis) {
ParameterInfo[] parameters = mi.GetParameters();
if ((mi.Name.Equals(methodName)) && (parameters.Length == args.Length)) {
bool allMatch = true;
IList<int> byRefArgIndices = new List<int>();
for(int i=0; i<parameters.Length; i++) {
Type rawParameterType = parameters[i].ParameterType;
Type parameterType = rawParameterType.IsByRef?rawParameterType.GetElementType():rawParameterType;
if (!(parameterType.IsAssignableFrom(args[i].GetType()))) {
allMatch = false;
break;
} else if (rawParameterType.IsByRef) {
byRefArgIndices.Add(i);
}
}
if (allMatch) {
object invocationResult = mi.Invoke(target, args);
if (byRefArgIndices.Count == 0) {
return invocationResult;
}
else {
object[] result = new object[1 + byRefArgIndices.Count];
result[0] = invocationResult;
for(int i=0; i<byRefArgIndices.Count; i++) {
result[1+i] = args[byRefArgIndices[i]];
}
return result;
}
}
}
}
throw te;
}