tests/cases/test-sparse-dev.c

   1 //
   2 //  test-sparse-dev.c
   3 //  hfs
   4 //
   5 //  Created by Chris Suter on 8/14/15.
   6 //
   7 //
   8
   9 #include <TargetConditionals.h>
  10
  11 #if !TARGET_OS_EMBEDDED
  12
  13 #include <sys/mount.h>
  14 #include <sys/fcntl.h>
  15 #include <unistd.h>
  16
  17 #include "hfs-tests.h"
  18 #include "disk-image.h"
  19 #include "test-utils.h"
  20
  21 TEST(sparse_dev)
  22
  23 int run_sparse_dev(__unused test_ctx_t *ctx)
  24 {
  25         disk_image_t *di = disk_image_create("/tmp/sparse-dev.sparseimage",
  26                                                                                  &(disk_image_opts_t) {
  27                                                                                          .size = 64 * 1024 * 1024
  28                                                                                  });
  29
  30         char *path;
  31         asprintf(&path, "%s/child.sparseimage", di->mount_point);
  32
  33         disk_image_t *child = disk_image_create(path,
  34                                                                                         &(disk_image_opts_t) {
  35                                                                                                         .size = 256 * 1024 * 1024
  36                                                                                         });
  37
  38         free(path);
  39
  40         asprintf(&path, "%s/test.file", child->mount_point);
  41
  42         int fd = open(path, O_CREAT | O_RDWR, 0777);
  43         assert_with_errno(fd >= 0);
  44
  45         assert(ftruncate(fd, 128 * 1024 * 1024) == -1 && errno == ENOSPC);
  46
  47         struct statfs sfs;
  48         assert_no_err(statfs(child->mount_point, &sfs));
  49
  50         assert(sfs.f_bfree * sfs.f_bsize < 64 * 1024 * 1024);
  51
  52         return 0;
  53 }
  54
  55 #endif // !TARGET_OS_EMBEDDED