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tests/g-file-info-filesystem-readonly: assert subcommands succeed

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In practice, fusermount -u often fails:

  /usr/bin/fusermount: failed to unmount /home/wjt/src/gnome/glib/_build/dir_bindfs_mountpoint: Device or resource busy

which causes the subsequent calls to bindfs to fail:

  fuse: mountpoint is not empty
  fuse: if you are sure this is safe, use the 'nonempty' mount option

This may or may not cause the current test run to fail, but it reliably
causes a repeat run of the test to fail. This change causes the current
run to fail instead.
This commit is contained in:
Will Thompson 2018-11-12 12:47:34 +00:00
parent fcda663165
commit 3821ba06b1
No known key found for this signature in database
GPG Key ID: 3422DC0D7AD482A7
1 changed files with 55 additions and 16 deletions
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71
gio/tests/g-file-info-filesystem-readonly.c
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@ -19,11 +19,48 @@
* if advised of the possibility of such damage.
*/
#include <errno.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <gio/gio.h>
#include <gio/gunixmounts.h>
static void
run (GError **error,
const gchar *argv0,
...)
{
GPtrArray *args;
const gchar *arg;
va_list ap;
GSubprocess *subprocess;
args = g_ptr_array_new ();
va_start (ap, argv0);
g_ptr_array_add (args, (gchar *) argv0);
while ((arg = va_arg (ap, const gchar *)))
g_ptr_array_add (args, (gchar *) arg);
g_ptr_array_add (args, NULL);
va_end (ap);
subprocess = g_subprocess_newv ((const gchar * const *) args->pdata, G_SUBPROCESS_FLAGS_NONE, error);
g_ptr_array_free (args, TRUE);
if (subprocess == NULL)
return;
g_subprocess_wait_check (subprocess, NULL, error);
g_object_unref (subprocess);
}
static void
assert_remove (const gchar *file)
{
if (g_remove (file) != 0)
g_error ("failed to remove %s: %s", file, g_strerror (errno));
}
static void
test_filesystem_readonly (gconstpointer with_mount_monitor)
{
@ -31,9 +68,9 @@ test_filesystem_readonly (gconstpointer with_mount_monitor)
GFile *mounted_file;
GUnixMountMonitor *mount_monitor = NULL;
gchar *bindfs, *fusermount;
gchar *command_mount, *command_mount_ro, *command_umount;
gchar *curdir, *dir_to_mount, *dir_mountpoint;
gchar *file_in_mount, *file_in_mountpoint;
GError *error = NULL;
/* installed by package 'bindfs' in Fedora */
bindfs = g_find_program_in_path ("bindfs");
@ -68,8 +105,8 @@ test_filesystem_readonly (gconstpointer with_mount_monitor)
/* Use bindfs, which does not need root privileges, to mount the contents of one dir
* into another dir (and do the mount as readonly as per passed '-o ro' option) */
command_mount_ro = g_strdup_printf ("%s -n -o ro '%s' '%s'", bindfs, dir_to_mount, dir_mountpoint);
g_spawn_command_line_sync (command_mount_ro, NULL, NULL, NULL, NULL);
run (&error, bindfs, "-n", "-o", "ro", dir_to_mount, dir_mountpoint, NULL);
g_assert_no_error (error);
/* Let's check now, that the file is in indeed in a readonly filesystem */
file_in_mountpoint = g_strdup_printf ("%s/example.txt", dir_mountpoint);
@ -83,7 +120,9 @@ test_filesystem_readonly (gconstpointer with_mount_monitor)
}
file_info = g_file_query_filesystem_info (mounted_file,
G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, NULL, NULL);
G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, NULL, &error);
g_assert_no_error (error);
g_assert_nonnull (file_info);
if (! g_file_info_get_attribute_boolean (file_info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY))
{
g_test_skip ("Failed to create readonly file needed to proceed further with the test");
@ -91,10 +130,10 @@ test_filesystem_readonly (gconstpointer with_mount_monitor)
}
/* Now we unmount, and mount again but this time rw (not readonly) */
command_umount = g_strdup_printf ("%s -u '%s'", fusermount, dir_mountpoint);
g_spawn_command_line_sync (command_umount, NULL, NULL, NULL, NULL);
command_mount = g_strdup_printf ("%s -n '%s' '%s'", bindfs, dir_to_mount, dir_mountpoint);
g_spawn_command_line_sync (command_mount, NULL, NULL, NULL, NULL);
run (&error, fusermount, "-u", dir_mountpoint, NULL);
g_assert_no_error (error);
run (&error, bindfs, "-n", dir_to_mount, dir_mountpoint, NULL);
g_assert_no_error (error);
if (with_mount_monitor)
{
@ -108,7 +147,9 @@ test_filesystem_readonly (gconstpointer with_mount_monitor)
g_clear_object (&mounted_file);
mounted_file = g_file_new_for_path (file_in_mountpoint);
file_info = g_file_query_filesystem_info (mounted_file,
G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, NULL, NULL);
G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, NULL, &error);
g_assert_no_error (error);
g_assert_nonnull (file_info);
if (g_file_info_get_attribute_boolean (file_info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY))
{
@ -128,20 +169,18 @@ test_filesystem_readonly (gconstpointer with_mount_monitor)
g_clear_object (&mount_monitor);
g_clear_object (&file_info);
g_clear_object (&mounted_file);
g_spawn_command_line_sync (command_umount, NULL, NULL, NULL, NULL); /* unmount */
run (&error, fusermount, "-u", dir_mountpoint, NULL);
g_assert_no_error (error);
g_remove (file_in_mount);
g_remove (dir_to_mount);
g_remove (dir_mountpoint);
assert_remove (file_in_mount);
assert_remove (dir_to_mount);
assert_remove (dir_mountpoint);
g_free (bindfs);
g_free (fusermount);
g_free (curdir);
g_free (dir_to_mount);
g_free (dir_mountpoint);
g_free (command_mount);
g_free (command_mount_ro);
g_free (command_umount);
g_free (file_in_mount);
g_free (file_in_mountpoint);
}