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nixpkgs/pkgs/tools/backup/test-case.nix
Marc Weber c823bc37d6 backup tools bup, storeBackup: implement sanity check
bup:
- update
- run make test (all tests seem to pass :-)
- add python.modules.readline
- add comment that there is no way to prune old revisions (yet)
2013-09-01 02:22:01 +02:00

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Nix

# while this test suite is not perfect it will at least provide some guarantees
# that basic features should be fine ..
/*
In order to use the suite you have to define the following functions
backup_init
backup_make source
backup_restore_latest target
backup_verify_integrity_latest
backup_verify_latest source
use true if a backup system does not implement a feature
TODO: add test cases for all backup solutions shipping with nixpkgs
This does not replace the test suites shipping with the backup solutions!
*/
{diffutils, writeTextFile}:
writeTextFile {
name = "backup-test-case";
text = ''
backup_run_tests_on_source(){
local test="$1"
local source="$2"
local backup="$3"
echo =========
echo RUNNING TEST "$test" source: "$source"
mkdir restored
backup_make "$source" backup
{ # verify that restoring works
backup_restore_latest restored
${diffutils}/bin/diff -r "$source" restored
# diff does not make a difference for symlinks, so list them and compare
# lists
( cd "$source"; find /var/www/ -type l) | sort > 1
( cd "$restored"; find /var/www/ -type l) | sort > 2
diff 1 2
}
{ # verify that backup tool thinks so, too:
backup_verify_latest "$source" backup
# using different source verification must fail:
! backup_verify_latest "$TMP" backup
}
backup_verify_integrity_latest backup
chmod -R +w restored
rm -fr restored
}
backup_test(){
set -x
# allow getting run time to compare backup solutions
echo "START $(date)"
local block_size="$2"
backup_init
if [ -z "$SKIP_SYMLINK_TEST" ]; then
{ # create first test case directory contentents
testDir=$TMP/test-1a
mkdir $testDir
echo X > $testDir/X
ln -s ./X $testDir/Y
}
backup_run_tests_on_source 'test 1a: backup, restore' "$testDir" "$backup"
fi
if [ -z "$SKIP_EMPTY_DIR_TEST" ]; then
{ # create first test case directory contentents
testDir=$TMP/test-1b
mkdir -p $testDir/empty-directory
}
backup_run_tests_on_source 'test 1b: backup, restore' "$testDir" "$backup"
fi
testDir=$TMP/test-huge-blocks
mkdir $testDir
# test huge blocks, according to docs files bigger than 100MB get split
# into pieces
dd if=/dev/urandom bs=1M of=block-0 count=20
dd if=/dev/urandom bs="$block_size" of=block-1 count=1
dd if=/dev/urandom bs="$block_size" of=block-2 count=1
cat block-0 block-0 block-0 block-1 block-2 block-0 block-0 block-0 > $testDir/block
backup_run_tests_on_source 'test 1 with huge block' $testDir
cat block-2 block-0 block-0 block-1 > $testDir/block
backup_run_tests_on_source 'test 1 with huge block reversed' $testDir
backup_run_tests_on_source 'test 2: backup, restore' $out
backup_run_tests_on_source 'test 3: backup, restore' $out
backup_run_tests_on_source 'test 4: backup diffutils to same backup locations, restore' ${diffutils}
echo "STOP $(date)"
}
'';
}