test: add function to reduce copied setup boilerplate

Many tests were also masking systemd-machined.service. But machined
should only start when activated, so having it not masked shouldn't be
noticable. TEST-25-IMPORT needs it.

34 files changed, 46 insertions, 252 deletions

diff --git a/test/TEST-02-CRYPTSETUP/test.sh b/test/TEST-02-CRYPTSETUP/test.sh
index 801dc71569..a7563f4462 100755
--- a/test/TEST-02-CRYPTSETUP/test.sh
+++ b/test/TEST-02-CRYPTSETUP/test.sh
@@ -40,14 +40,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-03-JOBS/test.sh b/test/TEST-03-JOBS/test.sh
index 3359ee6840..50b7bce3ed 100755
--- a/test/TEST-03-JOBS/test.sh
+++ b/test/TEST-03-JOBS/test.sh
@@ -14,14 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-04-JOURNAL/test.sh b/test/TEST-04-JOURNAL/test.sh
index cabc71f4ff..a18d21533e 100755
--- a/test/TEST-04-JOURNAL/test.sh
+++ b/test/TEST-04-JOURNAL/test.sh
@@ -13,14 +13,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-05-RLIMITS/test.sh b/test/TEST-05-RLIMITS/test.sh
index 159c1e0ea8..87fb89e781 100755
--- a/test/TEST-05-RLIMITS/test.sh
+++ b/test/TEST-05-RLIMITS/test.sh
@@ -13,14 +13,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         cat >$initdir/etc/systemd/system.conf <<EOF
 [Manager]
diff --git a/test/TEST-06-SELINUX/test.sh b/test/TEST-06-SELINUX/test.sh
index 2e983f7879..646dfe024a 100755
--- a/test/TEST-06-SELINUX/test.sh
+++ b/test/TEST-06-SELINUX/test.sh
@@ -24,6 +24,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
 
         # setup the testsuite service
         cat <<EOF >$initdir/etc/systemd/system/testsuite.service
@@ -91,13 +92,6 @@ EOF
         dracut_install runcon
         dracut_install checkmodule semodule semodule_package m4 make /usr/libexec/selinux/hll/pp load_policy sefcontext_compile
     )
-
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
 }
 
 do_test "$@"
diff --git a/test/TEST-07-ISSUE-1981/test.sh b/test/TEST-07-ISSUE-1981/test.sh
index 2e4f67c5fe..199b4f85a8 100755
--- a/test/TEST-07-ISSUE-1981/test.sh
+++ b/test/TEST-07-ISSUE-1981/test.sh
@@ -16,14 +16,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-08-ISSUE-2730/test.sh b/test/TEST-08-ISSUE-2730/test.sh
index 8643842e81..a9e6ffa79d 100755
--- a/test/TEST-08-ISSUE-2730/test.sh
+++ b/test/TEST-08-ISSUE-2730/test.sh
@@ -64,12 +64,7 @@ EOF
     mkdir -p $initdir/etc/systemd/system/local-fs.target.wants
     ln -s /etc/systemd/system/-.mount $initdir/etc/systemd/system/local-fs.target.wants/-.mount
 
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+    mask_supporting_services
 }
 
 do_test "$@"
diff --git a/test/TEST-09-ISSUE-2691/test.sh b/test/TEST-09-ISSUE-2691/test.sh
index 1a8b900672..ca3e69d2ca 100755
--- a/test/TEST-09-ISSUE-2691/test.sh
+++ b/test/TEST-09-ISSUE-2691/test.sh
@@ -15,6 +15,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<'EOF'
@@ -31,13 +32,6 @@ EOF
 
         setup_testsuite
     )
-
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
 }
 
 do_test "$@"
diff --git a/test/TEST-10-ISSUE-2467/test.sh b/test/TEST-10-ISSUE-2467/test.sh
index 80b2fd923f..7bb2569630 100755
--- a/test/TEST-10-ISSUE-2467/test.sh
+++ b/test/TEST-10-ISSUE-2467/test.sh
@@ -13,6 +13,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
         dracut_install true rm socat
 
         # setup the testsuite service
@@ -42,13 +43,6 @@ EOF
         setup_testsuite
     )
     setup_nspawn_root
-
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
 }
 
 do_test "$@"
diff --git a/test/TEST-11-ISSUE-3166/test.sh b/test/TEST-11-ISSUE-3166/test.sh
index c50efb8c9b..81c12a2783 100755
--- a/test/TEST-11-ISSUE-3166/test.sh
+++ b/test/TEST-11-ISSUE-3166/test.sh
@@ -14,16 +14,9 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
         dracut_install false touch
 
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
-
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
 [Unit]
diff --git a/test/TEST-12-ISSUE-3171/test.sh b/test/TEST-12-ISSUE-3171/test.sh
index 5b1c3aa313..d9a0e1a3dd 100755
--- a/test/TEST-12-ISSUE-3171/test.sh
+++ b/test/TEST-12-ISSUE-3171/test.sh
@@ -14,16 +14,9 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
         dracut_install cat mv stat nc
 
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
-
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
 [Unit]
diff --git a/test/TEST-13-NSPAWN-SMOKE/test.sh b/test/TEST-13-NSPAWN-SMOKE/test.sh
index 4f14bf12e3..747d30d952 100755
--- a/test/TEST-13-NSPAWN-SMOKE/test.sh
+++ b/test/TEST-13-NSPAWN-SMOKE/test.sh
@@ -14,16 +14,9 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
         dracut_install busybox chmod rmdir unshare ip sysctl
 
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
-
         cp create-busybox-container $initdir/
 
         ./create-busybox-container $initdir/nc-container
diff --git a/test/TEST-14-MACHINE-ID/test.sh b/test/TEST-14-MACHINE-ID/test.sh
index e52377c79d..72d7eacbf6 100755
--- a/test/TEST-14-MACHINE-ID/test.sh
+++ b/test/TEST-14-MACHINE-ID/test.sh
@@ -14,6 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
         printf "556f48e837bc4424a710fa2e2c9d3e3c\ne3d\n" >$initdir/etc/machine-id
         dracut_install mount cmp
 
@@ -72,13 +73,6 @@ chmod +x $initdir/test-machine-id-setup.sh
 
         setup_testsuite
     )
-
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
 }
 
 do_test "$@"
diff --git a/test/TEST-15-DROPIN/test.sh b/test/TEST-15-DROPIN/test.sh
index 9d5ea138b9..a1d0c618d9 100755
--- a/test/TEST-15-DROPIN/test.sh
+++ b/test/TEST-15-DROPIN/test.sh
@@ -8,13 +8,7 @@ TEST_NO_QEMU=1
 test_setup() {
     # create the basic filesystem layout
     setup_basic_environment
-
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+    mask_supporting_services
 
     # import the test scripts in the rootfs and plug them in systemd
     cp testsuite.service $initdir/etc/systemd/system/
diff --git a/test/TEST-16-EXTEND-TIMEOUT/test.sh b/test/TEST-16-EXTEND-TIMEOUT/test.sh
index 368c9e63ca..c5f8af6ec6 100755
--- a/test/TEST-16-EXTEND-TIMEOUT/test.sh
+++ b/test/TEST-16-EXTEND-TIMEOUT/test.sh
@@ -14,6 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
 
         for s in success-all success-start success-stop success-runtime \
                  fail-start fail-stop fail-runtime
@@ -27,12 +28,6 @@ test_setup() {
 
         setup_testsuite
     )
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
 
     setup_nspawn_root
 }
diff --git a/test/TEST-17-UDEV-WANTS/test.sh b/test/TEST-17-UDEV-WANTS/test.sh
index 36032348b8..1cdbbd2d8a 100755
--- a/test/TEST-17-UDEV-WANTS/test.sh
+++ b/test/TEST-17-UDEV-WANTS/test.sh
@@ -14,13 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-18-FAILUREACTION/test.sh b/test/TEST-18-FAILUREACTION/test.sh
index 18b0be82e8..e9f6ee7afe 100755
--- a/test/TEST-18-FAILUREACTION/test.sh
+++ b/test/TEST-18-FAILUREACTION/test.sh
@@ -13,6 +13,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
@@ -27,14 +28,8 @@ EOF
 
         setup_testsuite
     )
-    setup_nspawn_root
 
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+    setup_nspawn_root
 }
 
 do_test "$@"
diff --git a/test/TEST-19-DELEGATE/test.sh b/test/TEST-19-DELEGATE/test.sh
index bdd6562a33..706f0e9fbb 100755
--- a/test/TEST-19-DELEGATE/test.sh
+++ b/test/TEST-19-DELEGATE/test.sh
@@ -15,14 +15,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-20-MAINPIDGAMES/test.sh b/test/TEST-20-MAINPIDGAMES/test.sh
index 0f6aef7453..0ba30bdb00 100755
--- a/test/TEST-20-MAINPIDGAMES/test.sh
+++ b/test/TEST-20-MAINPIDGAMES/test.sh
@@ -12,14 +12,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
@@ -35,6 +28,7 @@ EOF
 
         setup_testsuite
     )
+
     setup_nspawn_root
 }
 
diff --git a/test/TEST-22-TMPFILES/test.sh b/test/TEST-22-TMPFILES/test.sh
index 5c509f63fb..32c3abdeab 100755
--- a/test/TEST-22-TMPFILES/test.sh
+++ b/test/TEST-22-TMPFILES/test.sh
@@ -8,6 +8,7 @@ TEST_NO_QEMU=1
 test_setup() {
     # create the basic filesystem layout
     setup_basic_environment
+    mask_supporting_services
     inst_binary mv
     inst_binary stat
     inst_binary seq
@@ -15,14 +16,6 @@ test_setup() {
     inst_binary mkfifo
     inst_binary readlink
 
-    # mask some services that we do not want to run in these tests
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-    ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
-
     # setup the testsuite service
     cp testsuite.service $initdir/etc/systemd/system/
     setup_testsuite
diff --git a/test/TEST-23-TYPE-EXEC/test.sh b/test/TEST-23-TYPE-EXEC/test.sh
index 2b10b9ad70..127d39319a 100755
--- a/test/TEST-23-TYPE-EXEC/test.sh
+++ b/test/TEST-23-TYPE-EXEC/test.sh
@@ -12,14 +12,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-27-STDOUTFILE/test.sh b/test/TEST-27-STDOUTFILE/test.sh
index a796dcd79e..c8338736bb 100755
--- a/test/TEST-27-STDOUTFILE/test.sh
+++ b/test/TEST-27-STDOUTFILE/test.sh
@@ -11,17 +11,9 @@ test_setup() {
         LOG_LEVEL=5
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
-        inst_binary cmp
-
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
+        inst_binary cmp
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-28-PERCENTJ-WANTEDBY/test.sh b/test/TEST-28-PERCENTJ-WANTEDBY/test.sh
index 1fb9825bf8..3427ba7a91 100755
--- a/test/TEST-28-PERCENTJ-WANTEDBY/test.sh
+++ b/test/TEST-28-PERCENTJ-WANTEDBY/test.sh
@@ -14,6 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
 
         # Set up the services.
         cat >$initdir/etc/systemd/system/specifier-j-wants.service << EOF
@@ -48,14 +49,8 @@ EOF
 
         setup_testsuite
     )
-    setup_nspawn_root
 
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+    setup_nspawn_root
 }
 
 do_test "$@"
diff --git a/test/TEST-29-UDEV-ID_RENAMING/test.sh b/test/TEST-29-UDEV-ID_RENAMING/test.sh
index 2a483bbc3d..7d173c8422 100755
--- a/test/TEST-29-UDEV-ID_RENAMING/test.sh
+++ b/test/TEST-29-UDEV-ID_RENAMING/test.sh
@@ -14,13 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-30-ONCLOCKCHANGE/test.sh b/test/TEST-30-ONCLOCKCHANGE/test.sh
index 67e074af4c..8976e95308 100755
--- a/test/TEST-30-ONCLOCKCHANGE/test.sh
+++ b/test/TEST-30-ONCLOCKCHANGE/test.sh
@@ -16,14 +16,7 @@ test_setup() {
         inst_any /usr/share/zoneinfo/Europe/Berlin
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # extend the watchdog
         mkdir -p $initdir/etc/systemd/system/systemd-timedated.service.d
diff --git a/test/TEST-31-DEVICE-ENUMERATION/test.sh b/test/TEST-31-DEVICE-ENUMERATION/test.sh
index 855ec42266..e88e0c367a 100755
--- a/test/TEST-31-DEVICE-ENUMERATION/test.sh
+++ b/test/TEST-31-DEVICE-ENUMERATION/test.sh
@@ -14,13 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-32-OOMPOLICY/test.sh b/test/TEST-32-OOMPOLICY/test.sh
index 4578916762..1726b21fc3 100755
--- a/test/TEST-32-OOMPOLICY/test.sh
+++ b/test/TEST-32-OOMPOLICY/test.sh
@@ -15,14 +15,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-33-CLEAN-UNIT/test.sh b/test/TEST-33-CLEAN-UNIT/test.sh
index 90dd495c0a..b3316bdc26 100755
--- a/test/TEST-33-CLEAN-UNIT/test.sh
+++ b/test/TEST-33-CLEAN-UNIT/test.sh
@@ -14,14 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-34-DYNAMICUSERMIGRATE/test.sh b/test/TEST-34-DYNAMICUSERMIGRATE/test.sh
index 0bff59fcb7..c7c1b29d86 100755
--- a/test/TEST-34-DYNAMICUSERMIGRATE/test.sh
+++ b/test/TEST-34-DYNAMICUSERMIGRATE/test.sh
@@ -12,14 +12,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-36-NUMAPOLICY/test.sh b/test/TEST-36-NUMAPOLICY/test.sh
index 14cbe5f386..e4c0e45ebe 100755
--- a/test/TEST-36-NUMAPOLICY/test.sh
+++ b/test/TEST-36-NUMAPOLICY/test.sh
@@ -15,16 +15,9 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
         dracut_install mktemp
 
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
-
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
 [Unit]
diff --git a/test/TEST-37-RUNTIMEDIRECTORYPRESERVE/test.sh b/test/TEST-37-RUNTIMEDIRECTORYPRESERVE/test.sh
index b7a3ab8ce4..ffe0ee9499 100755
--- a/test/TEST-37-RUNTIMEDIRECTORYPRESERVE/test.sh
+++ b/test/TEST-37-RUNTIMEDIRECTORYPRESERVE/test.sh
@@ -14,14 +14,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/TEST-39-EXECRELOAD/test.sh b/test/TEST-39-EXECRELOAD/test.sh
index e6bb7baedf..d2b1663aa3 100755
--- a/test/TEST-39-EXECRELOAD/test.sh
+++ b/test/TEST-39-EXECRELOAD/test.sh
@@ -13,16 +13,9 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
+        mask_supporting_services
         dracut_install mktemp
 
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
-
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
 [Unit]
diff --git a/test/TEST-40-EXEC-COMMAND-EX/test.sh b/test/TEST-40-EXEC-COMMAND-EX/test.sh
index 4e73fbaee9..01d725eb5e 100755
--- a/test/TEST-40-EXEC-COMMAND-EX/test.sh
+++ b/test/TEST-40-EXEC-COMMAND-EX/test.sh
@@ -12,14 +12,7 @@ test_setup() {
         eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
 
         setup_basic_environment
-
-        # mask some services that we do not want to run in these tests
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
-        ln -fs /dev/null $initdir/etc/systemd/system/systemd-machined.service
+        mask_supporting_services
 
         # setup the testsuite service
         cat >$initdir/etc/systemd/system/testsuite.service <<EOF
diff --git a/test/test-functions b/test/test-functions
index 359fd4026e..3afc324110 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -913,6 +913,15 @@ setup_basic_dirs() {
     ln -sfn /run/lock "$initdir/var/lock"
 }
 
+mask_supporting_services() {
+    # mask some services that we do not want to run in these tests
+    ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
+    ln -fs /dev/null $initdir/etc/systemd/system/systemd-journal-catalog-update.service
+    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.service
+    ln -fs /dev/null $initdir/etc/systemd/system/systemd-networkd.socket
+    ln -fs /dev/null $initdir/etc/systemd/system/systemd-resolved.service
+}
+
 inst_libs() {
     local _bin=$1
     local _so_regex='([^ ]*/lib[^/]*/[^ ]*\.so[^ ]*)'