tests: add a check if tests requiring it are run by root

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

tests/libtest.sh

@@ -298,3 +298,12 @@ os_repository_new_commit ()
     ostree --repo=${test_tmpdir}/testos-repo commit  --add-metadata-string "version=${version}" -b testos/buildmaster/x86_64-runtime -s "Build"
     cd ${test_tmpdir}
 }
+
+check_root_test ()
+{
+    if test "$(id -u)" != "0"; then
+       echo 1>&2 "$0 can be run only as root"
+       echo "1..0"
+       exit 0
+    fi
+}

tests/test-basic.sh

@@ -21,6 +21,8 @@ set -e
 
 . $(dirname $0)/libtest.sh
 
+check_root_test
+
 echo "1..1"
 
 setup_os_repository "archive-z2" "syslinux"