#include <assert.h>

#include <errno.h>

#include <cstdio>

#include <iostream>

#include <string.h>

#include <unistd.h>

#include <stdlib.h>

#include <fcntl.h>

#include <sys/stat.h>

void create_file(const char *path, const char *buffer, int mode) {

int fd = open(path, O_WRONLY | O_CREAT | O_EXCL, mode);

assert(fd >= 0);

int err = write(fd, buffer, sizeof(char) * strlen(buffer));

assert(err == (sizeof(char) * strlen(buffer)));

close(fd);

}

void setup() {

create_file("file", "abcdef", 0777);

mkdir("dir", 0777);

create_file("dir/file", "abcdef", 0777);

mkdir("dir/subdir", 0777);

}

void cleanup() {

// make sure we get it all regardless of anything failing

unlink("file");

unlink("dir/file");

rmdir("dir/subdir");

rmdir("dir");

}

void test() {

int err;

err = std::remove("dir/file");

assert(!err);

err = std::remove("file");

assert(!err);

// should fail, folder is not empty

err = std::remove("dir");

assert(err);

err = std::remove("dir/subdir");

assert(!err);

err = std::remove("dir");

assert(!err);

std::cout << "success";

}

int main() {

atexit(cleanup);

setup();

test();

return EXIT_SUCCESS;

}