Mock non-virtual methods

[Ana]

Hello,

I'm using spring4d for unit testing, and I've run into a challenge: I need to mock a method that doesn't belong to a class, such as CreateProcess, GetTempPath... from Winapi.Windows. Is there any way to mock these system-level functions using Spring4d, without changing the original code?

An example of using them:

1. function GetWinTmpPath:string;

...

GetTempPath(Requiered, Pchar(Result));

...

2. function WinExec(const cmd:string; const cmdshow: integer):cardinal;

begin

...

Result:=CreateProcess(..);

if result then ...

...

end;

Thanks in advance!

[Stefan Glienke]

No, for such things, you need to use libraries such as DDetours.

Another possible approach would be to not directly use such functions, but put them behind an interface that you can then mock.

[Ana]

Ok, thank you for the answer and for pointing out how to approach this!