test: make testcase_owneridmap() compatible with coverage runs

Follow-up for 614d09a.

diff --git a/test/units/testsuite-13.nspawn.sh b/test/units/testsuite-13.nspawn.sh
index 2e7a71f250bf17db96936ad8ea3cadf5b3c13c7a..69f21efd6058a54ce3e9dce691ae13dea3bd003c 100755 (executable)
--- a/test/units/testsuite-13.nspawn.sh
+++ b/test/units/testsuite-13.nspawn.sh
@@ -675,6 +675,7 @@ EOF
                            -U \
                            --user=testuser \
                            --bind=/tmp/owneridmap/bind:/home/testuser:owneridmap \
+                           ${COVERAGE_BUILD_DIR:+--bind="$COVERAGE_BUILD_DIR"} \
                            /usr/bin/bash -c "$cmd" |& tee nspawn.out; then
         if grep -q "Failed to map ids for bind mount.*: Function not implemented" nspawn.out; then
             echo "idmapped mounts are not supported, skipping the test..."