RAII with Exceptions

I've read about RAII a bit in the last few days and I always thought that I understood it. So I just wanted to write a little program that has an Object that handles a file and wanted to try RAII with throwing an exception. Here is what I did:

using namespace std;

class FileHandler{
    FILE* file;
public:
    FileHandler(const string &s, const char *r){
        cout << "opened file";
        file = fopen(s.c_str(), r);
        fputs("test", file);
    }
    ~FileHandler(){
        cout << "closed file";
        fclose(file);
    }
};

#include "FileHandler.h"
#include <stdexcept>

int main() {
    FileHandler fileHandler("test.txt", "w");
    throw std::invalid_argument("why does this not work?");

}

From what I know about RAII the Destructor of FileHandler should be called and I should have an output on my console but somehow I don't get any output except the output for the exception. Does the exception output override my cout output or is my understanding of RAII wrong. I wanted to use this code to demonstrate to somebody else how RAII works, which is not really helpfull when I dont have the expected console output.

Thanks for any help.