[Libguestfs] [PATCH v3 10/10] sparsify: Add a test of the virt-sparsify --in-place option.

--- sparsify/Makefile.am | 7 +++- sparsify/test-virt-sparsify-in-place.sh | 69 +++++++++++++++++++++++++++++++++ 2 files changed, 74 insertions(+), 2 deletions(-) create mode 100755 sparsify/test-virt-sparsify-in-place.sh diff --git a/sparsify/Makefile.am b/sparsify/Makefile.am index 811c131..5e1b382 100644 --- a/sparsify/Makefile.am +++ b/sparsify/Makefile.am @@ -20,7 +20,8 @@ include $(top_srcdir)/subdir-rules.mk EXTRA_DIST = \ $(SOURCES) \ virt-sparsify.pod \ - test-virt-sparsify.sh + test-virt-sparsify.sh \ + test-virt-sparsify-in-place.sh CLEANFILES = *~ *.cmi *.cmo *.cmx *.cmxa *.o virt-sparsify @@ -133,7 +134,9 @@ CLEANFILES += stamp-virt-sparsify.pod TESTS_ENVIRONMENT = $(top_builddir)/run --test if ENABLE_APPLIANCE -TESTS = test-virt-sparsify.sh +TESTS = \ + test-virt-sparsify.sh \ + test-virt-sparsify-in-place.sh endif ENABLE_APPLIANCE check-valgrind: diff --git a/sparsify/test-virt-sparsify-in-place.sh b/sparsify/test-virt-sparsify-in-place.sh new file mode 100755 index 0000000..56311a0 --- /dev/null +++ b/sparsify/test-virt-sparsify-in-place.sh @@ -0,0 +1,69 @@ +#!/bin/bash - +# libguestfs virt-sparsify --in-place test script +# Copyright (C) 2011-2014 Red Hat Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +export LANG=C +set -e + +if [ -n "$SKIP_TEST_VIRT_SPARSIFY_IN_PLACE_SH" ]; then + echo "$0: skipping test (environment variable set)" + exit 77 +fi + +if [ "$(../fish/guestfish get-backend)" = "uml" ]; then + echo "$0: skipping test because uml backend does not support discard" + exit 77 +fi + +rm -f test-virt-sparsify-in-place.img + +# Create a filesystem, fill it with data, then delete the data. Then +# prove that sparsifying it reduces the size of the final filesystem. + +$VG ../fish/guestfish \ + -N test-virt-sparsify-in-place.img=bootrootlv:/dev/VG/LV:ext4:ext4:400M:32M:gpt <<EOF +mount /dev/VG/LV / +mkdir /boot +mount /dev/sda1 /boot +fill 1 300M /big +fill 1 10M /boot/big +sync +rm /big +rm /boot/big +umount-all +EOF + +size_before=$(du -s test-virt-sparsify-in-place.img | awk '{print $1}') + +$VG ./virt-sparsify --debug-gc --in-place test-virt-sparsify-in-place.img + +size_after=$(du -s test-virt-sparsify-in-place.img | awk '{print $1}') + +echo "test virt-sparsify: $size_before K -> $size_after K" + +if [ $size_before -lt 310000 ]; then + echo "test virt-sparsify --in-place: size_before ($size_before) too small" + exit 1 +fi + +if [ $size_after -gt 15000 ]; then + echo "test virt-sparsify --in-place: size_after ($size_after) too large" + echo "sparsification failed" + exit 1 +fi + +rm test-virt-sparsify-in-place.img -- 1.8.5.3