testsuite-17.11.sh: create all files in a temporary directory

Make sure the test would not collide with anything else by moving
all files it created into a temporary directory.

diff --git a/test/units/testsuite-17.11.sh b/test/units/testsuite-17.11.sh
index 6a6d873bdee2c49d884c2f4b7c7890100febeaae..ad0158921cd64c714c1ef319ad58626ce97a13da 100755 (executable)
--- a/test/units/testsuite-17.11.sh
+++ b/test/units/testsuite-17.11.sh
@@ -5,6 +5,16 @@ set -o pipefail
 
 # Test for udevadm verify.
 
+cleanup() {
+        cd /
+        rm -rf "${workdir}"
+        workdir=
+}
+
+workdir="$(mktemp -d)"
+trap cleanup EXIT
+cd "${workdir}"
+
 udevadm verify -h
 udevadm verify --help
 udevadm verify -V