+ Try to remove lost and found dir and replace it with a file of the same name.
+
+ Change the mode of the lost and found dir to read only.
+
+Tests which do not exist in yaffs:
+ test_yaffs_close //This function has already been called by the time this test is reached,
+ //so there is no point in testing it.
+
+ test_yaffs_link_EMLINK //should not happen on yaffs
+ test_yaffs_link_ELOOP
+
+ test_yaffs_lstat_ELOOP
+
+ test_yaffs_mkdir_ELOOP
+
+ //the yaffs_mknod function does not exist in yaffsfs, so these tests will not be added.
+ test_yaffs_mknod_EACCES
+ test_yaffs_mknod_EEXIST
+ test_yaffs_mknod_EINVAL
+ test_yaffs_mknod_ELOOP
+ test_yaffs_mknod_ENAMETOOLONG
+ test_yaffs_mknod_ENOENT
+ test_yaffs_mknod_ENOTDIR
+ test_yaffs_mknod_EROFS
+
+ teat_yaffs_mount_ELOOP
+
+ test_yaffs_mount2_EINVAL //cannot happen in yaffs since the mode is not checked.
+ test_yaffs_mount2_ENOTDIR //cannot be generated in yaffs.
+ test_yaffs_mount2_ENOENT //cannot be generated in yaffs.
+ test_yaffs_mount2_ELOOP
+
+ test_yaffs_remount_ENOENT //cannot be generated in yaffs
+ test_yaffs_remount_ENOTDIR //cannot be generated in yaffs
+
+ test_yaffs_unmount2_ENOENT //cannot be generated in yaffs.
+ test_yaffs_unmount2_ENOTDIR //cannot be generated in yaffs.
+