Testing the rest program

test.c

#include <stdio.h>
#include <cs50.h>
#include <string.h>

bool is_rest(string s);
int main(void)
{
    // Expect notes from user until EOF
    while (true)
    {
        // Expect note
        string line = get_string("");

        // Check for EOF
        if (line == NULL)
        {
            printf("That was the end of program");
            break;
        }

        // Check if line is rest
        if (is_rest(line))
        {
            printf("The above line was a rest\n");
        }
        else
        {
            printf("The above line was not a rest\n");
        }
    }

}
    bool is_rest(string s)
    {
        // TODO
        bool ans;
        int test = strcmp("" , s);
        if (test == 0)
        {
            ans = true;
            return ans;
        }
        else
        {
            return false;
        }
    }