Checking for compatible types using reflection in Go

Although I am aware that it might not be idiomatic to panic in Go, I would like to test to ensure a function panics under certain conditions and not in others.

An example of the function.

func PanicOnErr(potentialErr error) {
    if potentialErr != nil {
	    panic(potentialErr)
    }
}

The following is an implementation for checking if the function will panic.

func InvocationCausedPanic(f interface{}, params ...interface{}) bool {
	// Obtain the function's signature.
	reflectedFunc := reflect.ValueOf(f)
	funcType := reflect.TypeOf(f)

	if funcType.NumIn() != len(params) {
		panic("InvocationCausedPanic called with a function and an incorrect number of parameter(s).")
	}

	reflectedParams := make([]reflect.Value, len(params))
	for paramIndex, paramValue := range params {
		expectedType := funcType.In(paramIndex)
		actualType := reflect.TypeOf(paramValue)

		if actualType != expectedType {
			errStr := fmt.Sprintf("InvocationCausedPanic called with a mismatched parameter type [parameter #%v: expected %v; got %v].", paramIndex, expectedType, actualType)
			panic(errStr)
		}

		reflectedParams[paramIndex] = reflect.ValueOf(paramValue)
	}

	return invoke(reflectedFunc, reflectedParams)
}

func invoke(reflectedFunc reflect.Value, reflectedParams []reflect.Value) (panicked bool) {
	defer func() {
		if r := recover(); r != nil {
			panicked = true
		}
	}()

	reflectedFunc.Call(reflectedParams)
	return
}

Calling either of the following will cause the type-check to fail.

InvocationCausedPanic(PanicOnErr, errors.New("Some error."))
InvocationCausedPanic(PanicOnErr, nil)

However, it seems possible to call PanicOnErr using both nil and something generate by calling errors.New (seems to be of type *errors.errorString).

As such, is there a way to check if the type of some parameter is suitable for invoking some function?

While I know it is possible to use defer and recover to more simply test the function, I am curious as to whether it is possible to write a general function that can accept any function and parameters and determine whether it resulted in a panic (assuming the function completes).

Relevant Go Playground:
http://play.golang.org/p/qUG7OGuIbD

Use this function to determine if the parameter is compatible:

func compatible(actual, expected reflect.Type) bool {
  if actual == nil {
	k := expected.Kind()
	return k == reflect.Chan || 
           k == reflect.Func || 
           k == reflect.Interface || 
           k == reflect.Map || 
           k == reflect.Ptr || 
           k == reflect.Slice
  }
  return actual.AssignableTo(expected)
}

<kbd>playground</kbd>