usertests.c

#include "types.h"
#include "stat.h"
#include "user.h"
#include "fs.h"
#include "fcntl.h"

char buf[2048];
char name[3];
char *echo_args[] = { "echo", "ALL", "TESTS", "PASSED", 0 };
char *cat_args[] = { "cat", "README", 0 };
int stdout = 1;

// simple file system tests

void
opentest(void)
{
  int fd;

  printf(stdout, "open test\n");
  fd = open("echo", 0);
  if(fd < 0){
    printf(stdout, "open echo failed!\n");
    exit();
  }
  close(fd);
  fd = open("doesnotexist", 0);
  if(fd >= 0){
    printf(stdout, "open doesnotexist succeeded!\n");
    exit();
  }
  printf(stdout, "open test ok\n");
}

void
writetest(void)
{
  int fd;
  int i;

  printf(stdout, "small file test\n");
  fd = open("small", O_CREATE|O_RDWR);
  if(fd >= 0){
    printf(stdout, "creat small succeeded; ok\n");
  } else {
    printf(stdout, "error: creat small failed!\n");
    exit();
  }
  for(i = 0; i < 100; i++) {
    if(write(fd, "aaaaaaaaaa", 10) != 10) {
      printf(stdout, "error: write aa %d new file failed\n", i);
      exit();
    }
    if(write(fd, "bbbbbbbbbb", 10) != 10) {
      printf(stdout, "error: write bb %d new file failed\n", i);
      exit();
    }
  }
  printf(stdout, "writes ok\n");
  close(fd);
  fd = open("small", O_RDONLY);
  if(fd >= 0){
    printf(stdout, "open small succeeded ok\n");
  } else {
    printf(stdout, "error: open small failed!\n");
    exit();
  }
  i = read(fd, buf, 2000);
  if(i == 2000) {
    printf(stdout, "read succeeded ok\n");