tests/test-golang.c

   1 /* nbdkit
   2  * Copyright Red Hat
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  * * Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  *
  15  * * Neither the name of Red Hat nor the names of its contributors may be
  16  * used to endorse or promote products derived from this software without
  17  * specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  22  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  26  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  27  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  29  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <config.h>
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <stdint.h>
  38 #include <inttypes.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41
  42 #include <guestfs.h>
  43
  44 #include "test.h"
  45
  46 static const char *plugin =
  47   "../plugins/golang/examples/disk/nbdkit-godisk-plugin.so";
  48
  49 int
  50 main (int argc, char *argv[])
  51 {
  52   const char *s;
  53   guestfs_h *g;
  54   int r;
  55   int64_t size;
  56   char *data;
  57
  58   /* Golang fails completely under valgrind, so skip. */
  59   s = getenv ("NBDKIT_VALGRIND");
  60   if (s && strcmp (s, "1") == 0) {
  61     fprintf (stderr, "%s test skipped under valgrind.\n", argv[0]);
  62     exit (77);                  /* Tells automake to skip the test. */
  63   }
  64
  65   /* Skip the test if the "disk" plugin/example wasn't built. */
  66   if (access (plugin, R_OK) == -1) {
  67     perror (plugin);
  68     exit (77);
  69   }
  70
  71   if (test_start_nbdkit (plugin, "size=1048576", NULL) == -1)
  72     exit (EXIT_FAILURE);
  73
  74   g = guestfs_create ();
  75   if (g == NULL) {
  76     perror ("guestfs_create");
  77     exit (EXIT_FAILURE);
  78   }
  79
  80   r = guestfs_add_drive_opts (g, "",
  81                               GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
  82                               GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
  83                               GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
  84                               -1);
  85   if (r == -1)
  86     exit (EXIT_FAILURE);
  87
  88   if (guestfs_launch (g) == -1)
  89     exit (EXIT_FAILURE);
  90
  91   /* Check the size is exactly 1M. */
  92   size = guestfs_blockdev_getsize64 (g, "/dev/sda");
  93   if (size != 1024 * 1024) {
  94     fprintf (stderr, "%s FAILED: unexpected size "
  95              "(actual: %" PRIi64 ", expected: %d)\n",
  96              program_name, size, 1024*1024);
  97     exit (EXIT_FAILURE);
  98   }
  99
 100   if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
 101     exit (EXIT_FAILURE);
 102   if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1)
 103     exit (EXIT_FAILURE);
 104
 105   if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
 106     exit (EXIT_FAILURE);
 107
 108 #define filename "/hello.txt"
 109 #define content "hello, people of the world"
 110
 111   if (guestfs_write (g, filename, content, strlen (content)) == -1)
 112     exit (EXIT_FAILURE);
 113
 114   data = guestfs_cat (g, filename);
 115   if (!data)
 116     exit (EXIT_FAILURE);
 117
 118   if (strcmp (data, content) != 0) {
 119     fprintf (stderr,
 120              "%s FAILED: unexpected content of %s file "
 121              "(actual: %s, expected: %s)\n",
 122              program_name, filename, data, content);
 123     exit (EXIT_FAILURE);
 124   }
 125   free (data);
 126
 127   /* Run sync to test flush path. */
 128   if (guestfs_sync (g) == -1)
 129     exit (EXIT_FAILURE);
 130
 131   /* Run fstrim to test trim path.  However only recent versions of
 132    * libguestfs have this, and it probably only works in recent
 133    * versions of qemu.
 134    */
 135 #ifdef GUESTFS_HAVE_FSTRIM
 136   if (guestfs_fstrim (g, "/", -1) == -1)
 137     exit (EXIT_FAILURE);
 138 #endif
 139
 140   /* Run fallocate(1) on the device to test zero path. */
 141   if (guestfs_umount (g, "/") == -1)
 142     exit (EXIT_FAILURE);
 143   const char *cmd[] = { "fallocate", "-nzl", "64k", "/dev/sda", NULL };
 144   data = guestfs_debug (g, "sh", (char **) cmd);
 145   free (data);
 146
 147   if (guestfs_shutdown (g) == -1)
 148     exit (EXIT_FAILURE);
 149
 150   guestfs_close (g);
 151   exit (EXIT_SUCCESS);
 152 }