How to use test input file in Xcode C++ by using command line arguments?

Question

I am trying to use sample.in.txt as a test input in Xcode C++. Thus, I go to edit schema and add arguments like this.

xcode command line arguments

However, when I run the project, it is still getting the input from the user and do nothing about the input file I typed on the arguments. I print the argv, then it all prints correctly.

This is my main function

    int main(int argc, char** argv) {
    
    int T;
    cin >> T;
    for(int i = 0; i < T; i++){
        int size, shift;
        cin >> size >> shift;
        Array test(size);
        for(int j = 0; j < size; j++){
            int x;
            cin >> x;
            test.add(j, x);
        }
        test.shift(shift);
    }
    return 0;
}