diff --git a/test/test-functions b/test/test-functions
index a87b7b966d..9aa9c37a9e 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -158,6 +158,7 @@ BASICTOOLS=(
     cat
     chmod
     chown
+    chroot
     cmp
     cryptsetup
     cut
diff --git a/test/units/testsuite-64.sh b/test/units/testsuite-64.sh
index 8e4653312b..c4406f381b 100755
--- a/test/units/testsuite-64.sh
+++ b/test/units/testsuite-64.sh
@@ -192,7 +192,7 @@ testcase_nvme_subsystem() {
 testcase_virtio_scsi_identically_named_partitions() {
     local num
 
-    if [[ -n "${ASAN_OPTIONS:-}" ]] || [[ "$(systemd-detect-virt -v)" == "qemu" ]]; then
+    if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
         num=$((4 * 4))
     else
         num=$((16 * 8))
@@ -306,7 +306,7 @@ testcase_simultaneous_events() {
     local -a devices symlinks
     local -A running
 
-    if [[ -n "${ASAN_OPTIONS:-}" ]] || [[ "$(systemd-detect-virt -v)" == "qemu" ]]; then
+    if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
         num_part=2
         iterations=10
         timeout=240
@@ -401,7 +401,7 @@ testcase_lvm_basic() {
         /dev/disk/by-id/ata-foobar_deadbeeflvm{0..3}
     )
 
-    if [[ -n "${ASAN_OPTIONS:-}" ]] || [[ "$(systemd-detect-virt -v)" == "qemu" ]]; then
+    if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
         timeout=180
     else
         timeout=30
@@ -454,7 +454,7 @@ testcase_lvm_basic() {
     helper_check_device_units
 
     # Same as above, but now with more "stress"
-    if [[ -n "${ASAN_OPTIONS:-}" ]] || [[ "$(systemd-detect-virt -v)" == "qemu" ]]; then
+    if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
         iterations=10
     else
         iterations=50
@@ -479,7 +479,7 @@ testcase_lvm_basic() {
     helper_check_device_units
 
     # Create & remove LVs in a loop, i.e. with more "stress"
-    if [[ -n "${ASAN_OPTIONS:-}" ]]; then
+    if [[ -v ASAN_OPTIONS ]]; then
         iterations=8
         partitions=16
     elif [[ "$(systemd-detect-virt -v)" == "qemu" ]]; then
diff --git a/test/units/testsuite-65.sh b/test/units/testsuite-65.sh
index 1f34308b44..ebe1f57b52 100755
--- a/test/units/testsuite-65.sh
+++ b/test/units/testsuite-65.sh
@@ -139,6 +139,16 @@ systemd-analyze cat-config systemd/system.conf systemd/journald.conf >/dev/null
 systemd-analyze cat-config systemd/system.conf foo/bar systemd/journald.conf >/dev/null
 systemd-analyze cat-config foo/bar
 
+if [[ ! -v ASAN_OPTIONS ]]; then
+    # check that systemd-analyze cat-config paths work in a chroot
+    mkdir -p /tmp/root
+    mount --bind / /tmp/root
+    systemd-analyze cat-config systemd/system-preset >/tmp/out1
+    chroot /tmp/root systemd-analyze cat-config systemd/system-preset >/tmp/out2
+    diff /tmp/out{1,2}
+fi
+
+# verify
 mkdir -p /tmp/img/usr/lib/systemd/system/
 mkdir -p /tmp/img/opt/