diff --git a/README b/README
index 3845fa9..b262eb1 100644
--- a/README
+++ b/README
@@ -60,7 +60,7 @@ Running the disk based tests:
 
 You can run all the disk based tests by doing:
 
-  ./do_file
+  ./do_disk
 
 The disk based tests are totally separate from any production
 system, provided you have configured the database appropriately
diff --git a/tests/1-example-test b/tests/1-example-test
index fa177e4..3f8cbfc 100755
--- a/tests/1-example-test
+++ b/tests/1-example-test
@@ -64,8 +64,9 @@ messages
 quit
 END_OF_DATA
 
-# Start the bareos daemon
+# Start the bareos daemons
 # and run the bconsole commands from ${tmp}/bconcmds
+# Further bconsole commands can be executed by "run_bconsole".
 run_bareos
 
 # verify that all are terminated
diff --git a/tests/truncate-command-test b/tests/truncate-command-test
new file mode 100755
index 0000000..9dcded3
--- /dev/null
+++ b/tests/truncate-command-test
@@ -0,0 +1,106 @@
+#!/bin/sh
+
+. scripts/functions
+
+#
+# Test the truncate command
+#
+
+get_filesize()
+{
+    stat --printf="%s" "$1"
+}
+
+# Define the Name of the test as "TestName".
+# Should be the same as the filename, therefore we use the filename as default.
+TestName="`basename $0`"
+
+# set other test specific variables
+Client=bareos-fd
+JobName=backup-bareos-fd
+
+# a truncated volume has not the size 0, but is at least smaller than this (default block size)
+MinVolumeSize=65536
+VolumeName=TestVolume001
+
+# Directory to backup.
+# This example uses a subdirectory of the bareos source/build directory,
+# that contains some file but isn't to large.
+BackupDirectory="${cwd}/build/src/tests/"
+
+# Remove old configuration, working and tmp files. Setup the database.
+cleanup
+
+# Config files will be copied to required location.
+# Base configuration files come from the
+# configs/BASE/ directory, see
+# configs/BASE/README.txt for an overview of the provides resources.
+# Store your additonal resources to
+# configs/$TestName.
+# It is also possible to overwrite resources from configs/BASE.
+# If you define a full config file (instead of config files for individual resources),
+# only these will be taken.
+copy_configs
+
+# the default fileset FS_TESTJOB backups all file and directories defined in "${tmp}/file-list".
+echo "${BackupDirectory}" >${tmp}/file-list
+
+# start the test
+start_test
+
+# ${tmp}/bconcmds lists the bconsole commands executed by "run_bareos"
+# create a volume and put data on it.
+cat <<END_OF_DATA >${tmp}/bconcmds
+messages
+@$out ${tmp}/log1.out w
+label storage=File1 volume=${VolumeName} pool=Default
+run job=$JobName storage=File1 yes
+wait
+messages
+END_OF_DATA
+
+# Start the bareos daemons
+# and run the bconsole commands from ${tmp}/bconcmds
+run_bareos
+
+# get size of backup job
+#sed -r -n -e 's/ *SD Bytes Written: *([0-9,]*) .*/\1/p' tmp/log1.out  | sed s/,//
+VolumeSizeWithJob=`get_filesize ${tmp}/${VolumeName}`
+
+# do some manual testing
+if [ ${VolumeSizeWithJob} -lt ${MinVolumeSize} ]; then
+    set_error "Volume size: ${VolumeSizeWithJob} < ${MinVolumeSize}. Something went wrong with the backup."
+fi
+
+
+cat <<END_OF_DATA >${tmp}/bconcmds2
+@$out ${tmp}/log2.out w
+purge volume=${VolumeName}
+truncate volstatus=Purged volume=${VolumeName} yes
+messages
+END_OF_DATA
+
+run_bconsole ${tmp}/bconcmds2
+
+# verify that all are terminated
+check_for_zombie_jobs storage=File1 client=${Client}
+
+# stop bareos
+stop_bareos
+
+# check tmp/log1.out and tmp/log2.out for errors
+check_two_logs
+
+VolumeSizeAfterTruncate=`get_filesize ${tmp}/${VolumeName}`
+
+# do some manual testing
+if [ ${VolumeSizeAfterTruncate} -gt ${MinVolumeSize} ]; then
+    set_error "Volume size: ${VolumeSizeAfterTruncate} > ${MinVolumeSize}. Something went wrong with the truncate command."
+fi
+
+printf "Volume path:          %s\n" ${tmp}/${VolumeName}
+printf "Size before truncate: %d\n" ${VolumeSizeWithJob}
+printf "Size after truncate:  %d\n" ${VolumeSizeAfterTruncate}
+
+# end tests and check for error codes
+end_test