diff --git a/test/TEST-07-ISSUE-1981/test.sh b/test/TEST-07-ISSUE-1981/test.sh
deleted file mode 100755
index 5bc41386b56..00000000000
--- a/test/TEST-07-ISSUE-1981/test.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="https://github.com/systemd/systemd/issues/1981"
-TEST_NO_QEMU=1
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-NSPAWN_TIMEOUT=30
-
-do_test "$@"
diff --git a/test/TEST-07-ISSUE-1981/Makefile b/test/TEST-07-PID1/Makefile
similarity index 100%
rename from test/TEST-07-ISSUE-1981/Makefile
rename to test/TEST-07-PID1/Makefile
diff --git a/test/TEST-07-PID1/test.sh b/test/TEST-07-PID1/test.sh
new file mode 100755
index 00000000000..1c3d7137feb
--- /dev/null
+++ b/test/TEST-07-PID1/test.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -e
+
+TEST_DESCRIPTION="Tests for core PID1 functionality"
+
+# shellcheck source=test/test-functions
+. "${TEST_BASE_DIR:?}/test-functions"
+
+test_append_files() {
+    local workspace="${1:?}"
+
+    # Collecting coverage slows this particular test quite a bit, causing
+    # it to fail with the default settings (20 triggers per 2 secs).
+    # Let's help it a bit in such case.
+    if get_bool "$IS_BUILT_WITH_COVERAGE"; then
+        mkdir -p "$workspace/etc/systemd/system/issue2467.socket.d"
+        printf "[Socket]\nTriggerLimitIntervalSec=10\n" >"$workspace/etc/systemd/system/issue2467.socket.d/coverage-override.conf"
+    fi
+
+    # Issue: https://github.com/systemd/systemd/issues/2730
+    mkdir -p "$workspace/etc/systemd/system/"
+    cat >"$workspace/etc/systemd/system/issue2730.mount" <<EOF
+[Mount]
+What=tmpfs
+Where=/issue2730
+Type=tmpfs
+
+[Install]
+WantedBy=local-fs.target
+Alias=issue2730-alias.mount
+EOF
+    "${SYSTEMCTL:?}" enable --root="$workspace" issue2730.mount
+    ln -svrf "$workspace/etc/systemd/system/issue2730.mount" "$workspace/etc/systemd/system/issue2730-alias.mount"
+}
+
+do_test "$@"
diff --git a/test/TEST-08-ISSUE-2730/Makefile b/test/TEST-08-ISSUE-2730/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-08-ISSUE-2730/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-08-ISSUE-2730/test.sh b/test/TEST-08-ISSUE-2730/test.sh
deleted file mode 100755
index 0564314a86c..00000000000
--- a/test/TEST-08-ISSUE-2730/test.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="https://github.com/systemd/systemd/issues/2730"
-IMAGE_NAME="test08"
-TEST_NO_NSPAWN=1
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-TEST_FORCE_NEWIMAGE=1
-
-do_test "$@"
diff --git a/test/TEST-09-ISSUE-2691/Makefile b/test/TEST-09-ISSUE-2691/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-09-ISSUE-2691/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-09-ISSUE-2691/test.sh b/test/TEST-09-ISSUE-2691/test.sh
deleted file mode 100755
index 3fc243cc553..00000000000
--- a/test/TEST-09-ISSUE-2691/test.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="https://github.com/systemd/systemd/issues/2691"
-TEST_NO_NSPAWN=1
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-do_test "$@"
diff --git a/test/TEST-10-ISSUE-2467/Makefile b/test/TEST-10-ISSUE-2467/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-10-ISSUE-2467/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-10-ISSUE-2467/test.sh b/test/TEST-10-ISSUE-2467/test.sh
deleted file mode 100755
index 8dabf3f2b65..00000000000
--- a/test/TEST-10-ISSUE-2467/test.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="https://github.com/systemd/systemd/issues/2467"
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-test_append_files() {
-    (
-        # Collecting coverage slows this particular test quite a bit, causing
-        # it to fail with the default settings (20 triggers per 2 secs)
-        # to trip over the default limit. Let's help it a bit in such case.
-        if get_bool "$IS_BUILT_WITH_COVERAGE"; then
-            mkdir -p "${initdir:?}/etc/systemd/system/test10.socket.d"
-            printf "[Socket]\nTriggerLimitIntervalSec=10\n" >"${initdir:?}/etc/systemd/system/test10.socket.d/coverage-override.conf"
-        fi
-    )
-}
-
-do_test "$@"
diff --git a/test/TEST-11-ISSUE-3166/Makefile b/test/TEST-11-ISSUE-3166/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-11-ISSUE-3166/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-11-ISSUE-3166/test.sh b/test/TEST-11-ISSUE-3166/test.sh
deleted file mode 100755
index 12dabd704d7..00000000000
--- a/test/TEST-11-ISSUE-3166/test.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="https://github.com/systemd/systemd/issues/3166"
-TEST_NO_NSPAWN=1
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-do_test "$@"
diff --git a/test/TEST-12-ISSUE-3171/Makefile b/test/TEST-12-ISSUE-3171/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-12-ISSUE-3171/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-12-ISSUE-3171/test.sh b/test/TEST-12-ISSUE-3171/test.sh
deleted file mode 100755
index 977e04ee3f3..00000000000
--- a/test/TEST-12-ISSUE-3171/test.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="https://github.com/systemd/systemd/issues/3171"
-TEST_NO_QEMU=1
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-do_test "$@"
diff --git a/test/TEST-20-MAINPIDGAMES/Makefile b/test/TEST-20-MAINPIDGAMES/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-20-MAINPIDGAMES/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-20-MAINPIDGAMES/test.sh b/test/TEST-20-MAINPIDGAMES/test.sh
deleted file mode 100755
index b663201efb0..00000000000
--- a/test/TEST-20-MAINPIDGAMES/test.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="test changing main PID"
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-do_test "$@"
diff --git a/test/TEST-47-ISSUE-14566/Makefile b/test/TEST-47-ISSUE-14566/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-47-ISSUE-14566/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-47-ISSUE-14566/test.sh b/test/TEST-47-ISSUE-14566/test.sh
deleted file mode 100755
index 8bdbe14b97a..00000000000
--- a/test/TEST-47-ISSUE-14566/test.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="Test that KillMode=mixed does not leave left over processes with ExecStopPost="
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-do_test "$@"
diff --git a/test/TEST-51-ISSUE-16115/Makefile b/test/TEST-51-ISSUE-16115/Makefile
deleted file mode 120000
index e9f93b1104c..00000000000
--- a/test/TEST-51-ISSUE-16115/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../TEST-01-BASIC/Makefile
\ No newline at end of file
diff --git a/test/TEST-51-ISSUE-16115/test.sh b/test/TEST-51-ISSUE-16115/test.sh
deleted file mode 100755
index 7b306fa57b9..00000000000
--- a/test/TEST-51-ISSUE-16115/test.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -e
-
-TEST_DESCRIPTION="Test ExecCondition= does not restart on abnormal or failure"
-
-# shellcheck source=test/test-functions
-. "${TEST_BASE_DIR:?}/test-functions"
-
-do_test "$@"
diff --git a/test/meson.build b/test/meson.build
index f53971416ec..48f837cee52 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -15,9 +15,11 @@ if install_tests
                 'testsuite-03.units',
                 'testsuite-04.units',
                 'testsuite-06.units',
+                'testsuite-07.units',
                 'testsuite-10.units',
                 'testsuite-11.units',
                 'testsuite-16.units',
+                'testsuite-23.units',
                 'testsuite-28.units',
                 'testsuite-30.units',
                 'testsuite-52.units',
@@ -32,18 +34,6 @@ if install_tests
         install_data(kbd_model_map,
                      install_dir : testdata_dir + '/test-keymap-util')
 
-        testsuite08_dir = testdata_dir + '/testsuite-08.units'
-        install_data('testsuite-08.units/-.mount',
-                     install_dir : testsuite08_dir)
-        install_data('testsuite-08.units/systemd-remount-fs.service',
-                     install_dir : testsuite08_dir)
-        meson.add_install_script(meson_make_symlink,
-                                 './-.mount',
-                                 testsuite08_dir + '/root.mount')
-        meson.add_install_script(meson_make_symlink,
-                                 '../-.mount',
-                                 testsuite08_dir + '/local-fs.target.wants/-.mount')
-
         if conf.get('HAVE_ZSTD') == 1 and efi_arch != ''
                 install_subdir('test-bcd',
                                exclude_files : '.gitattributes',
diff --git a/test/units/testsuite-47-repro.service b/test/testsuite-07.units/issue14566-repro.service
similarity index 66%
rename from test/units/testsuite-47-repro.service
rename to test/testsuite-07.units/issue14566-repro.service
index 1508ac62424..56805963b41 100644
--- a/test/units/testsuite-47-repro.service
+++ b/test/testsuite-07.units/issue14566-repro.service
@@ -3,6 +3,6 @@
 Description=Issue 14566 Repro
 
 [Service]
-ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
+ExecStart=/usr/lib/systemd/tests/testdata/testsuite-07.units/%N.sh
 ExecStopPost=/bin/true
 KillMode=mixed
diff --git a/test/units/testsuite-47-repro.sh b/test/testsuite-07.units/issue14566-repro.sh
similarity index 100%
rename from test/units/testsuite-47-repro.sh
rename to test/testsuite-07.units/issue14566-repro.sh
diff --git a/test/units/testsuite-51-repro-1.service b/test/testsuite-07.units/issue16115-repro-1.service
similarity index 100%
rename from test/units/testsuite-51-repro-1.service
rename to test/testsuite-07.units/issue16115-repro-1.service
diff --git a/test/units/testsuite-51-repro-2.service b/test/testsuite-07.units/issue16115-repro-2.service
similarity index 100%
rename from test/units/testsuite-51-repro-2.service
rename to test/testsuite-07.units/issue16115-repro-2.service
diff --git a/test/units/testsuite-51-repro-3.service b/test/testsuite-07.units/issue16115-repro-3.service
similarity index 100%
rename from test/units/testsuite-51-repro-3.service
rename to test/testsuite-07.units/issue16115-repro-3.service
diff --git a/test/testsuite-10.units/test10.service b/test/testsuite-07.units/issue2467.service
similarity index 90%
rename from test/testsuite-10.units/test10.service
rename to test/testsuite-07.units/issue2467.service
index fc8fad93279..99d886f0252 100644
--- a/test/testsuite-10.units/test10.service
+++ b/test/testsuite-07.units/issue2467.service
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 [Unit]
-Requires=test10.socket
+Requires=issue2467.socket
 ConditionPathExistsGlob=/tmp/nonexistent
 # Make sure we hit the socket trigger limit in the test and not the service start limit.
 StartLimitInterval=1000
diff --git a/test/testsuite-10.units/test10.socket b/test/testsuite-07.units/issue2467.socket
similarity index 100%
rename from test/testsuite-10.units/test10.socket
rename to test/testsuite-07.units/issue2467.socket
diff --git a/test/testsuite-11.units/fail-on-restart.service b/test/testsuite-07.units/issue3166-fail-on-restart.service
similarity index 100%
rename from test/testsuite-11.units/fail-on-restart.service
rename to test/testsuite-07.units/issue3166-fail-on-restart.service
diff --git a/test/testsuite-08.units/-.mount b/test/testsuite-08.units/-.mount
deleted file mode 100644
index 66f29afab98..00000000000
--- a/test/testsuite-08.units/-.mount
+++ /dev/null
@@ -1,12 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Before=local-fs.target
-
-[Mount]
-What=/dev/sda1
-Where=/
-Options=noatime
-
-[Install]
-WantedBy=local-fs.target
-Alias=root.mount
diff --git a/test/testsuite-08.units/local-fs.target.wants/-.mount b/test/testsuite-08.units/local-fs.target.wants/-.mount
deleted file mode 120000
index 5566fceaa3c..00000000000
--- a/test/testsuite-08.units/local-fs.target.wants/-.mount
+++ /dev/null
@@ -1 +0,0 @@
-../-.mount
\ No newline at end of file
diff --git a/test/testsuite-08.units/root.mount b/test/testsuite-08.units/root.mount
deleted file mode 120000
index fd8c47d1b0b..00000000000
--- a/test/testsuite-08.units/root.mount
+++ /dev/null
@@ -1 +0,0 @@
--.mount
\ No newline at end of file
diff --git a/test/testsuite-08.units/systemd-remount-fs.service b/test/testsuite-08.units/systemd-remount-fs.service
deleted file mode 100644
index c7fdf2f68e0..00000000000
--- a/test/testsuite-08.units/systemd-remount-fs.service
+++ /dev/null
@@ -1,12 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-DefaultDependencies=no
-Conflicts=shutdown.target
-After=systemd-fsck-root.service
-Before=local-fs-pre.target local-fs.target shutdown.target
-Wants=local-fs-pre.target
-
-[Service]
-Type=oneshot
-RemainAfterExit=yes
-ExecStart=/bin/systemctl reload /
diff --git a/test/units/testsuite-23-binds-to.service b/test/testsuite-23.units/testsuite-23-binds-to.service
similarity index 100%
rename from test/units/testsuite-23-binds-to.service
rename to test/testsuite-23.units/testsuite-23-binds-to.service
diff --git a/test/units/testsuite-23-bound-by.service b/test/testsuite-23.units/testsuite-23-bound-by.service
similarity index 100%
rename from test/units/testsuite-23-bound-by.service
rename to test/testsuite-23.units/testsuite-23-bound-by.service
diff --git a/test/units/testsuite-23-fail.service b/test/testsuite-23.units/testsuite-23-fail.service
similarity index 100%
rename from test/units/testsuite-23-fail.service
rename to test/testsuite-23.units/testsuite-23-fail.service
diff --git a/test/units/testsuite-23-prop-stop-one.service b/test/testsuite-23.units/testsuite-23-prop-stop-one.service
similarity index 100%
rename from test/units/testsuite-23-prop-stop-one.service
rename to test/testsuite-23.units/testsuite-23-prop-stop-one.service
diff --git a/test/units/testsuite-23-prop-stop-two.service b/test/testsuite-23.units/testsuite-23-prop-stop-two.service
similarity index 100%
rename from test/units/testsuite-23-prop-stop-two.service
rename to test/testsuite-23.units/testsuite-23-prop-stop-two.service
diff --git a/test/units/testsuite-23-retry-fail.service b/test/testsuite-23.units/testsuite-23-retry-fail.service
similarity index 100%
rename from test/units/testsuite-23-retry-fail.service
rename to test/testsuite-23.units/testsuite-23-retry-fail.service
diff --git a/test/units/testsuite-23-retry-upheld.service b/test/testsuite-23.units/testsuite-23-retry-upheld.service
similarity index 100%
rename from test/units/testsuite-23-retry-upheld.service
rename to test/testsuite-23.units/testsuite-23-retry-upheld.service
diff --git a/test/units/testsuite-23-retry-uphold.service b/test/testsuite-23.units/testsuite-23-retry-uphold.service
similarity index 100%
rename from test/units/testsuite-23-retry-uphold.service
rename to test/testsuite-23.units/testsuite-23-retry-uphold.service
diff --git a/test/units/testsuite-23-short-lived.service b/test/testsuite-23.units/testsuite-23-short-lived.service
similarity index 100%
rename from test/units/testsuite-23-short-lived.service
rename to test/testsuite-23.units/testsuite-23-short-lived.service
diff --git a/test/units/testsuite-23-success.service b/test/testsuite-23.units/testsuite-23-success.service
similarity index 100%
rename from test/units/testsuite-23-success.service
rename to test/testsuite-23.units/testsuite-23-success.service
diff --git a/test/units/testsuite-23-uphold.service b/test/testsuite-23.units/testsuite-23-uphold.service
similarity index 100%
rename from test/units/testsuite-23-uphold.service
rename to test/testsuite-23.units/testsuite-23-uphold.service
diff --git a/test/units/test-control.sh b/test/units/test-control.sh
new file mode 100644
index 00000000000..dd28939cbf5
--- /dev/null
+++ b/test/units/test-control.sh
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+# shellcheck shell=bash
+
+if [[ "${BASH_SOURCE[0]}" -ef "$0" ]]; then
+    echo >&2 "This file should not be executed directly"
+    exit 1
+fi
+
+declare -i CHILD_PID=0
+PASSED_TESTS=()
+FAILED_TESTS=()
+
+# Like trap, but passes the signal name as the first argument
+trap_with_sig() {
+    local fun="${1:?}"
+    local sig
+    shift
+
+    for sig in "$@"; do
+        # shellcheck disable=SC2064
+        trap "$fun $sig" "$sig"
+    done
+}
+
+# Propagate the caught signal to the current child process
+handle_signal() {
+    local sig="${1:?}"
+
+    if [[ $CHILD_PID -gt 0 ]]; then
+        echo "Propagating signal $sig to child process $CHILD_PID"
+        kill -s "$sig" "$CHILD_PID"
+    fi
+}
+
+# In order to make the handle_signal() stuff above work, we have to execute
+# each script asynchronously, since bash won't execute traps until the currently
+# executed command finishes. This, however, introduces another issue regarding
+# how bash's wait works. Quoting:
+#
+#   When bash is waiting for an asynchronous command via the wait builtin,
+#   the reception of a signal for which a trap has been set will cause the wait
+#   builtin to return immediately with an exit status greater than 128,
+#   immediately after which the trap is executed.
+#
+# In other words - every time we propagate a signal, wait returns with
+# 128+signal, so we have to wait again - repeat until the process dies.
+wait_harder() {
+    local pid="${1:?}"
+
+    while kill -0 "$pid" &>/dev/null; do
+        wait "$pid" || :
+    done
+
+    wait "$pid"
+}
+
+# Like run_subtests, but propagate specified signals to the subtest script
+run_subtests_with_signals() {
+    local subtests=("${0%.sh}".*.sh)
+    local subtest
+
+    if [[ "${#subtests[@]}" -eq 0 ]]; then
+        echo >&2 "No subtests found for file $0"
+        exit 1
+    fi
+
+    if [[ "$#" -eq 0 ]]; then
+        echo >&2 "No signals to propagate were specified"
+        exit 1
+    fi
+
+    trap_with_sig handle_signal "$@"
+
+    for subtest in "${subtests[@]}"; do
+        : "--- $subtest BEGIN ---"
+        "./$subtest" &
+        CHILD_PID=$!
+        wait_harder "$CHILD_PID" && PASSED_TESTS+=("$subtest") || FAILED_TESTS+=("$subtest")
+        : "--- $subtest END ---"
+    done
+
+    show_summary
+}
+
+run_subtests() {
+    local subtests=("${0%.sh}".*.sh)
+    local subtest
+
+    if [[ "${#subtests[@]}" -eq 0 ]]; then
+        echo >&2 "No subtests found for file $0"
+        exit 1
+    fi
+
+    for subtest in "${subtests[@]}"; do
+        : "--- $subtest BEGIN ---"
+        "./$subtest" && PASSED_TESTS+=("$subtest") || FAILED_TESTS+=("$subtest")
+        : "--- $subtest END ---"
+    done
+
+    show_summary
+}
+
+show_summary() {(
+    set +x
+
+    if [[ ${#PASSED_TESTS[@]} -eq 0 && ${#FAILED_TESTS[@]} -eq 0 ]]; then
+        echo >&2 "No tests were executed, this is most likely an error"
+        exit 1
+    fi
+
+    printf "PASSED TESTS: %3d:\n" "${#PASSED_TESTS[@]}"
+    echo   "------------------"
+    for t in "${PASSED_TESTS[@]}"; do
+        echo "$t"
+    done
+
+    if [[ "${#FAILED_TESTS[@]}" -ne 0 ]]; then
+        printf "FAILED TESTS: %3d:\n" "${#FAILED_TESTS[@]}"
+        echo   "------------------"
+        for t in "${FAILED_TESTS[@]}"; do
+            echo "$t"
+        done
+    fi
+
+    [[ "${#FAILED_TESTS[@]}" -eq 0 ]]
+)}
diff --git a/test/units/testsuite-07.issue-14566.sh b/test/units/testsuite-07.issue-14566.sh
new file mode 100755
index 00000000000..e17c3934c1d
--- /dev/null
+++ b/test/units/testsuite-07.issue-14566.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Test that KillMode=mixed does not leave left over processes with ExecStopPost=
+# Issue: https://github.com/systemd/systemd/issues/14566
+
+if [[ -n "${ASAN_OPTIONS:-}" ]]; then
+    # Temporarily skip this test when running with sanitizers due to a deadlock
+    # See: https://bugzilla.redhat.com/show_bug.cgi?id=2098125
+    echo "Sanitizers detected, skipping the test..."
+    exit 0
+fi
+
+systemd-analyze log-level debug
+
+systemctl start issue14566-repro
+sleep 4
+systemctl status issue14566-repro
+
+leaked_pid=$(cat /leakedtestpid)
+
+systemctl stop issue14566-repro
+sleep 4
+
+# Leaked PID will still be around if we're buggy.
+# I personally prefer to see 42.
+ps -p "$leaked_pid" && exit 42
+
+systemd-analyze log-level info
diff --git a/test/units/testsuite-07.issue-16115.sh b/test/units/testsuite-07.issue-16115.sh
new file mode 100755
index 00000000000..8f638269cd1
--- /dev/null
+++ b/test/units/testsuite-07.issue-16115.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Test ExecCondition= does not restart on abnormal or failure
+# Issue: https://github.com/systemd/systemd/issues/16115
+
+systemctl start issue16115-repro-1
+systemctl start issue16115-repro-2
+systemctl start issue16115-repro-3
+sleep 5 # wait a bit in case there are restarts so we can count them below
+
+[[ "$(systemctl show issue16115-repro-1 -P NRestarts)" == "0" ]]
+[[ "$(systemctl show issue16115-repro-2 -P NRestarts)" == "0" ]]
+[[ "$(systemctl show issue16115-repro-3 -P NRestarts)" == "0" ]]
diff --git a/test/units/testsuite-07.issue-1981.sh b/test/units/testsuite-07.issue-1981.sh
new file mode 100755
index 00000000000..6eb802c93fb
--- /dev/null
+++ b/test/units/testsuite-07.issue-1981.sh
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Segmentation fault in timer_enter_waiting while masking a unit
+# Issue: https://github.com/systemd/systemd/issues/1981
+
+at_exit() {
+    set +e
+
+    systemctl stop my.timer my.service
+    rm -f /run/systemd/system/my.{service,timer}
+    systemctl daemon-reload
+}
+
+trap at_exit EXIT
+
+mkdir -p /run/systemd/system
+
+cat >/run/systemd/system/my.service <<\EOF
+[Service]
+Type=oneshot
+ExecStartPre=sh -c 'test "$TRIGGER_UNIT" = my.timer'
+ExecStartPre=sh -c 'test -n "$TRIGGER_TIMER_REALTIME_USEC"'
+ExecStartPre=sh -c 'test -n "$TRIGGER_TIMER_MONOTONIC_USEC"'
+ExecStart=/bin/echo Timer runs me
+EOF
+
+cat >/run/systemd/system/my.timer <<EOF
+[Timer]
+OnBootSec=10s
+OnUnitInactiveSec=1h
+EOF
+
+systemctl unmask my.timer
+systemctl start my.timer
+
+mkdir -p /run/systemd/system/my.timer.d/
+cat >/run/systemd/system/my.timer.d/override.conf <<EOF
+[Timer]
+OnBootSec=10s
+OnUnitInactiveSec=1h
+EOF
+
+systemctl daemon-reload
+systemctl mask my.timer
diff --git a/test/units/testsuite-07.issue-2467.sh b/test/units/testsuite-07.issue-2467.sh
new file mode 100755
index 00000000000..a5dcfd55dd9
--- /dev/null
+++ b/test/units/testsuite-07.issue-2467.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Don't start services every few ms if condition fails
+# Issue: https://github.com/systemd/systemd/issues/2467
+
+rm -f /tmp/nonexistent
+systemctl start issue2467.socket
+nc -w20 -U /run/test.ctl || :
+
+# TriggerLimitIntervalSec= by default is set to 2s. A "sleep 10" should give
+# systemd enough time even on slower machines, to reach the trigger limit.
+# shellcheck disable=SC2016
+timeout 10 bash -c 'while ! [[ "$(systemctl show issue2467.socket -P ActiveState)" == failed ]]; do sleep .5; done'
+[[ "$(systemctl show issue2467.socket -P Result)" == trigger-limit-hit ]]
diff --git a/test/units/testsuite-07.issue-3166.sh b/test/units/testsuite-07.issue-3166.sh
new file mode 100755
index 00000000000..6677901358f
--- /dev/null
+++ b/test/units/testsuite-07.issue-3166.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# Service doesn't enter the "failed" state
+# Issue: https://github.com/systemd/systemd/issues/3166
+
+systemctl --no-block start issue3166-fail-on-restart.service
+active_state="$(systemctl show --value --property ActiveState issue3166-fail-on-restart.service)"
+while [[ "$active_state" == "activating" || "$active_state" =~ ^(in)?active$ ]]; do
+    sleep .5
+    active_state="$(systemctl show --value --property ActiveState issue3166-fail-on-restart.service)"
+done
+systemctl is-failed issue3166-fail-on-restart.service || exit 1
+[[ "$(systemctl show --value --property NRestarts issue3166-fail-on-restart.service)" -le 3 ]] || exit 1
diff --git a/test/units/testsuite-07.issue-3171.sh b/test/units/testsuite-07.issue-3171.sh
new file mode 100755
index 00000000000..db17c25f904
--- /dev/null
+++ b/test/units/testsuite-07.issue-3171.sh
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+set -eux
+set -o pipefail
+
+# SocketGroup lost on daemon-reload with unit moving away temporarily
+# Issue: https://github.com/systemd/systemd/issues/3171
+
+echo "g adm - - -" | systemd-sysusers -
+
+U=/run/systemd/system/issue-3171.socket
+cat >$U <<EOF
+[Unit]
+Description=Test 12 socket
+[Socket]
+Accept=yes
+ListenStream=/run/issue-3171.socket
+SocketGroup=adm
+SocketMode=0660
+EOF
+
+cat >/run/systemd/system/issue-3171@.service <<EOF
+[Unit]
+Description=Test service
+[Service]
+StandardInput=socket
+ExecStart=/bin/sh -x -c cat
+EOF
+
+systemctl start issue-3171.socket
+systemctl is-active issue-3171.socket
+[[ "$(stat --format='%G' /run/issue-3171.socket)" == adm ]]
+echo A | nc -w1 -U /run/issue-3171.socket
+
+mv $U ${U}.disabled
+systemctl daemon-reload
+systemctl is-active issue-3171.socket
+[[ "$(stat --format='%G' /run/issue-3171.socket)" == adm ]]
+echo B | nc -w1 -U /run/issue-3171.socket && exit 1
+
+mv ${U}.disabled $U
+systemctl daemon-reload
+systemctl is-active issue-3171.socket
+echo C | nc -w1 -U /run/issue-3171.socket && exit 1
+[[ "$(stat --format='%G' /run/issue-3171.socket)" == adm ]]
+
+systemctl restart issue-3171.socket
+systemctl is-active issue-3171.socket
+echo D | nc -w1 -U /run/issue-3171.socket
+[[ "$(stat --format='%G' /run/issue-3171.socket)" == adm ]]
diff --git a/test/units/testsuite-20.sh b/test/units/testsuite-07.main-PID-change.sh
similarity index 68%
rename from test/units/testsuite-20.sh
rename to test/units/testsuite-07.main-PID-change.sh
index 6ce992f41ac..da23032d1ec 100755
--- a/test/units/testsuite-20.sh
+++ b/test/units/testsuite-07.main-PID-change.sh
@@ -3,9 +3,13 @@
 set -eux
 set -o pipefail
 
+# Test changing the main PID
+
 systemd-analyze log-level debug
 
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq $$
+# The main service PID should be the parent bash process
+MAINPID="${PPID:?}"
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$MAINPID"
 
 # Start a test process inside of our own cgroup
 sleep infinity &
@@ -18,43 +22,43 @@ EXTERNALPID="$(systemctl show -P MainPID test-sleep.service)"
 
 # Update our own main PID to the external test PID, this should work
 systemd-notify MAINPID="$EXTERNALPID"
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq "$EXTERNALPID"
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$EXTERNALPID"
 
 # Update our own main PID to the internal test PID, this should work, too
 systemd-notify MAINPID=$INTERNALPID
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq "$INTERNALPID"
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$INTERNALPID"
 
 # Update it back to our own PID, this should also work
-systemd-notify MAINPID=$$
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq $$
+systemd-notify MAINPID="$MAINPID"
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$MAINPID"
 
 # Try to set it to PID 1, which it should ignore, because that's the manager
 systemd-notify MAINPID=1
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq $$
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$MAINPID"
 
 # Try to set it to PID 0, which is invalid and should be ignored
 systemd-notify MAINPID=0
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq $$
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$MAINPID"
 
 # Try to set it to a valid but non-existing PID, which should be ignored. (Note
 # that we set the PID to a value well above any known /proc/sys/kernel/pid_max,
 # which means we can be pretty sure it doesn't exist by coincidence)
 systemd-notify MAINPID=1073741824
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq $$
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$MAINPID"
 
 # Change it again to the external PID, without privileges this time. This should be ignored, because the PID is from outside of our cgroup and we lack privileges.
 systemd-notify --uid=1000 MAINPID="$EXTERNALPID"
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq $$
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$MAINPID"
 
 # Change it again to the internal PID, without privileges this time. This should work, as the process is on our cgroup, and that's enough even if we lack privileges.
 systemd-notify --uid=1000 MAINPID="$INTERNALPID"
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq "$INTERNALPID"
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$INTERNALPID"
 
 # Update it back to our own PID, this should also work
-systemd-notify --uid=1000 MAINPID=$$
-test "$(systemctl show -P MainPID testsuite-20.service)" -eq $$
+systemd-notify --uid=1000 MAINPID="$MAINPID"
+test "$(systemctl show -P MainPID testsuite-07.service)" -eq "$MAINPID"
 
-cat >/tmp/test-mainpid.sh <<EOF
+cat >/tmp/test-mainpid.sh <<\EOF
 #!/usr/bin/env bash
 
 set -eux
@@ -65,20 +69,26 @@ sleep infinity &
 disown
 
 sleep infinity &
-MAINPID=\$!
+MAINPID=$!
 disown
 
 sleep infinity &
 disown
 
-echo \$MAINPID >/run/mainpidsh/pid
+echo $MAINPID >/run/mainpidsh/pid
 EOF
 chmod +x /tmp/test-mainpid.sh
 
-systemd-run --unit=test-mainpidsh.service -p StandardOutput=tty -p StandardError=tty -p Type=forking -p RuntimeDirectory=mainpidsh -p PIDFile=/run/mainpidsh/pid /tmp/test-mainpid.sh
+systemd-run --unit=test-mainpidsh.service \
+            -p StandardOutput=tty \
+            -p StandardError=tty \
+            -p Type=forking \
+            -p RuntimeDirectory=mainpidsh \
+            -p PIDFile=/run/mainpidsh/pid \
+            /tmp/test-mainpid.sh
 test "$(systemctl show -P MainPID test-mainpidsh.service)" -eq "$(cat /run/mainpidsh/pid)"
 
-cat >/tmp/test-mainpid2.sh <<EOF
+cat >/tmp/test-mainpid2.sh <<\EOF
 #!/usr/bin/env bash
 
 set -eux
@@ -89,18 +99,24 @@ sleep infinity &
 disown
 
 sleep infinity &
-MAINPID=\$!
+MAINPID=$!
 disown
 
 sleep infinity &
 disown
 
-echo \$MAINPID >/run/mainpidsh2/pid
+echo $MAINPID >/run/mainpidsh2/pid
 chown 1001:1001 /run/mainpidsh2/pid
 EOF
 chmod +x /tmp/test-mainpid2.sh
 
-systemd-run --unit=test-mainpidsh2.service -p StandardOutput=tty -p StandardError=tty -p Type=forking -p RuntimeDirectory=mainpidsh2 -p PIDFile=/run/mainpidsh2/pid /tmp/test-mainpid2.sh
+systemd-run --unit=test-mainpidsh2.service \
+            -p StandardOutput=tty \
+            -p StandardError=tty \
+            -p Type=forking \
+            -p RuntimeDirectory=mainpidsh2 \
+            -p PIDFile=/run/mainpidsh2/pid \
+            /tmp/test-mainpid2.sh
 test "$(systemctl show -P MainPID test-mainpidsh2.service)" -eq "$(cat /run/mainpidsh2/pid)"
 
 cat >/dev/shm/test-mainpid3.sh <<EOF
@@ -136,6 +152,8 @@ chmod 755 /dev/shm/test-mainpid3.sh
     -p RuntimeDirectory=mainpidsh3 \
     -p PIDFile=/run/mainpidsh3/pid \
     -p DynamicUser=1 \
+    `# Make sanitizers happy when DynamicUser=1 pulls in instrumented systemd NSS modules` \
+    -p EnvironmentFile=-/usr/lib/systemd/systemd-asan-env \
     -p TimeoutStartSec=2s \
     /dev/shm/test-mainpid3.sh)
 
@@ -159,7 +177,3 @@ runas testuser systemd-run --scope --user --unit test-true.scope /bin/true
 test "$(systemctl show -P Result test-true.scope)" = success
 
 systemd-analyze log-level info
-
-echo OK >/testok
-
-exit 0
diff --git a/test/units/testsuite-07.service b/test/units/testsuite-07.service
index c478e123608..cc0a747a884 100644
--- a/test/units/testsuite-07.service
+++ b/test/units/testsuite-07.service
@@ -3,6 +3,11 @@
 Description=TEST-07-ISSUE-1981
 
 [Service]
+Type=oneshot
 ExecStartPre=rm -f /failed /testok
 ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
-Type=oneshot
+NotifyAccess=all
+# Issue: https://github.com/systemd/systemd/issues/2691
+ExecStop=sh -c 'kill -SEGV $$$$'
+RemainAfterExit=yes
+TimeoutStopSec=270s
diff --git a/test/units/testsuite-07.sh b/test/units/testsuite-07.sh
index 95ebe3876ff..58d278e1f1f 100755
--- a/test/units/testsuite-07.sh
+++ b/test/units/testsuite-07.sh
@@ -3,37 +3,16 @@
 set -eux
 set -o pipefail
 
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
+
 : >/failed
 
-cat >/lib/systemd/system/my.service <<EOF
-[Service]
-Type=oneshot
-ExecStartPre=sh -c 'test "\$TRIGGER_UNIT" = my.timer'
-ExecStartPre=sh -c 'test -n "\$TRIGGER_TIMER_REALTIME_USEC"'
-ExecStartPre=sh -c 'test -n "\$TRIGGER_TIMER_MONOTONIC_USEC"'
-ExecStart=/bin/echo Timer runs me
-EOF
+# Issue: https://github.com/systemd/systemd/issues/2730
+# See TEST-07-PID1/test.sh for the first "half" of the test
+mountpoint /issue2730
 
-cat >/lib/systemd/system/my.timer <<EOF
-[Timer]
-OnBootSec=10s
-OnUnitInactiveSec=1h
-EOF
-
-systemctl unmask my.timer
-
-systemctl start my.timer
-
-mkdir -p /etc/systemd/system/my.timer.d/
-cat >/etc/systemd/system/my.timer.d/override.conf <<EOF
-[Timer]
-OnBootSec=10s
-OnUnitInactiveSec=1h
-EOF
-
-systemctl daemon-reload
-
-systemctl mask my.timer
+run_subtests
 
 touch /testok
 rm /failed
diff --git a/test/units/testsuite-08.service b/test/units/testsuite-08.service
deleted file mode 100644
index d6937663e2f..00000000000
--- a/test/units/testsuite-08.service
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-08-ISSUE-2730
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-ExecStart=sh -x -c 'mount -o remount,rw /dev/sda1 && echo OK >/testok; systemctl poweroff'
-Type=oneshot
diff --git a/test/units/testsuite-09.service b/test/units/testsuite-09.service
deleted file mode 100644
index 6f6cd9c5227..00000000000
--- a/test/units/testsuite-09.service
+++ /dev/null
@@ -1,11 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-09-ISSUE-2691
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-ExecStart=sh -c '>/testok'
-ExecStop=sh -c 'kill -SEGV $$$$'
-Type=oneshot
-RemainAfterExit=yes
-TimeoutStopSec=270s
diff --git a/test/units/testsuite-10.service b/test/units/testsuite-10.service
deleted file mode 100644
index 9fcfd673c66..00000000000
--- a/test/units/testsuite-10.service
+++ /dev/null
@@ -1,16 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-10-ISSUE-2467
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-Type=oneshot
-ExecStart=rm -f /tmp/nonexistent
-ExecStart=systemctl start test10.socket
-ExecStart=-nc -w20 -U /run/test.ctl
-# TriggerLimitIntervalSec= by default is set to 2s. A "sleep 10" should give
-# systemd enough time even on slower machines, to reach the trigger limit.
-ExecStart=sleep 10
-ExecStart=sh -x -c 'test "$(systemctl show test10.socket -P ActiveState)" = failed'
-ExecStart=sh -x -c 'test "$(systemctl show test10.socket -P Result)" = trigger-limit-hit'
-ExecStart=sh -x -c 'echo OK >/testok'
diff --git a/test/units/testsuite-11.service b/test/units/testsuite-11.service
deleted file mode 100644
index 5dfcf50e3f9..00000000000
--- a/test/units/testsuite-11.service
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-11-ISSUE-3166
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
-Type=oneshot
diff --git a/test/units/testsuite-11.sh b/test/units/testsuite-11.sh
deleted file mode 100755
index 7e1391d8eab..00000000000
--- a/test/units/testsuite-11.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -eux
-set -o pipefail
-
-systemctl --no-block start fail-on-restart.service
-active_state=$(systemctl show --value --property ActiveState fail-on-restart.service)
-while [[ "$active_state" == "activating" || "$active_state" =~ ^(in)?active$ ]]; do
-    sleep .5
-    active_state=$(systemctl show --value --property ActiveState fail-on-restart.service)
-done
-systemctl is-failed fail-on-restart.service || exit 1
-[[ "$(systemctl show --value --property NRestarts fail-on-restart.service)" -le 3 ]] || exit 1
-touch /testok
diff --git a/test/units/testsuite-12.service b/test/units/testsuite-12.service
deleted file mode 100644
index b26cfa575de..00000000000
--- a/test/units/testsuite-12.service
+++ /dev/null
@@ -1,9 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-12-ISSUE-3171
-After=multi-user.target
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
-Type=oneshot
diff --git a/test/units/testsuite-12.sh b/test/units/testsuite-12.sh
deleted file mode 100755
index 8c22a8b0312..00000000000
--- a/test/units/testsuite-12.sh
+++ /dev/null
@@ -1,49 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -eux
-set -o pipefail
-
-echo "g adm - - -" | systemd-sysusers -
-
-U=/run/systemd/system/test12.socket
-cat >$U <<EOF
-[Unit]
-Description=Test 12 socket
-[Socket]
-Accept=yes
-ListenStream=/run/test12.socket
-SocketGroup=adm
-SocketMode=0660
-EOF
-
-cat >/run/systemd/system/test12@.service <<EOF
-[Unit]
-Description=Test service
-[Service]
-StandardInput=socket
-ExecStart=/bin/sh -x -c cat
-EOF
-
-systemctl start test12.socket
-systemctl is-active test12.socket
-[[ "$(stat --format='%G' /run/test12.socket)" == adm ]]
-echo A | nc -w1 -U /run/test12.socket
-
-mv $U ${U}.disabled
-systemctl daemon-reload
-systemctl is-active test12.socket
-[[ "$(stat --format='%G' /run/test12.socket)" == adm ]]
-echo B | nc -w1 -U /run/test12.socket && exit 1
-
-mv ${U}.disabled $U
-systemctl daemon-reload
-systemctl is-active test12.socket
-echo C | nc -w1 -U /run/test12.socket && exit 1
-[[ "$(stat --format='%G' /run/test12.socket)" == adm ]]
-
-systemctl restart test12.socket
-systemctl is-active test12.socket
-echo D | nc -w1 -U /run/test12.socket
-[[ "$(stat --format='%G' /run/test12.socket)" == adm ]]
-
-touch /testok
diff --git a/test/units/testsuite-17.sh b/test/units/testsuite-17.sh
index b389875ef1a..72040f69d87 100755
--- a/test/units/testsuite-17.sh
+++ b/test/units/testsuite-17.sh
@@ -3,13 +3,14 @@
 set -eux
 set -o pipefail
 
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
+
 : >/failed
 
 udevadm settle
 
-for t in "${0%.sh}".*.sh; do
-    echo "Running $t"; ./"$t"
-done
+run_subtests
 
 touch /testok
 rm /failed
diff --git a/test/units/testsuite-20.service b/test/units/testsuite-20.service
deleted file mode 100644
index 4228d0b875e..00000000000
--- a/test/units/testsuite-20.service
+++ /dev/null
@@ -1,11 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-20-MAINPIDGAMES
-Before=getty-pre.target
-Wants=getty-pre.target
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
-Type=oneshot
-NotifyAccess=all
diff --git a/test/units/testsuite-22.sh b/test/units/testsuite-22.sh
index 43823f1d466..5a07e7b78c2 100755
--- a/test/units/testsuite-22.sh
+++ b/test/units/testsuite-22.sh
@@ -3,11 +3,12 @@
 set -eux
 set -o pipefail
 
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
+
 : >/failed
 
-for t in "${0%.sh}".*.sh; do
-    echo "Running $t"; ./"$t"
-done
+run_subtests
 
 touch /testok
 rm /failed
diff --git a/test/units/testsuite-23.sh b/test/units/testsuite-23.sh
index 34899070f17..3be645e20ae 100755
--- a/test/units/testsuite-23.sh
+++ b/test/units/testsuite-23.sh
@@ -5,62 +5,11 @@ set -o pipefail
 
 : >/failed
 
-declare -i CHILD_PID=0
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
 
-# Note: all the signal shenanigans are necessary for the Upholds= tests
-
-# Like trap, but passes the signal name as the first argument
-trap_with_sig() {
-    local fun="${1:?}"
-    local sig
-    shift
-
-    for sig in "$@"; do
-        # shellcheck disable=SC2064
-        trap "$fun $sig" "$sig"
-    done
-}
-
-# Propagate the caught signal to the current child process
-handle_signal() {
-    local sig="${1:?}"
-
-    if [[ $CHILD_PID -gt 0 ]]; then
-        echo "Propagating signal $sig to child process $CHILD_PID"
-        kill -s "$sig" "$CHILD_PID"
-    fi
-}
-
-# In order to make the handle_signal() stuff above work, we have to execute
-# each script asynchronously, since bash won't execute traps until the currently
-# executed command finishes. This, however, introduces another issue regarding
-# how bash's wait works. Quoting:
-#
-#   When bash is waiting for an asynchronous command via the wait builtin,
-#   the reception of a signal for which a trap has been set will cause the wait
-#   builtin to return immediately with an exit status greater than 128,
-#   immediately after which the trap is executed.
-#
-# In other words - every time we propagate a signal, wait returns with
-# 128+signal, so we have to wait again - repeat until the process dies.
-wait_harder() {
-    local pid="${1:?}"
-
-    while kill -0 "$pid" &>/dev/null; do
-        wait "$pid" || :
-    done
-
-    wait "$pid"
-}
-
-trap_with_sig handle_signal SIGUSR1 SIGUSR2 SIGRTMIN+1
-
-for script in "${0%.sh}".*.sh; do
-    echo "Running $script"
-    "./$script" &
-    CHILD_PID=$!
-    wait_harder "$CHILD_PID"
-done
+# Note: the signal shenanigans are necessary for the Upholds= tests
+run_subtests_with_signals SIGUSR1 SIGUSR2 SIGRTMIN+1
 
 touch /testok
 rm /failed
diff --git a/test/units/testsuite-47.service b/test/units/testsuite-47.service
deleted file mode 100644
index d5ad4801085..00000000000
--- a/test/units/testsuite-47.service
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-47-ISSUE-14566
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
-Type=oneshot
diff --git a/test/units/testsuite-47.sh b/test/units/testsuite-47.sh
deleted file mode 100755
index 529e9617a58..00000000000
--- a/test/units/testsuite-47.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -eux
-set -o pipefail
-
-systemd-analyze log-level debug
-
-systemctl start testsuite-47-repro
-sleep 4
-systemctl status testsuite-47-repro
-
-leaked_pid=$(cat /leakedtestpid)
-
-systemctl stop testsuite-47-repro
-sleep 4
-
-# Leaked PID will still be around if we're buggy.
-# I personally prefer to see 42.
-ps -p "$leaked_pid" && exit 42
-
-systemd-analyze log-level info
-
-echo OK >/testok
-
-exit 0
diff --git a/test/units/testsuite-51.service b/test/units/testsuite-51.service
deleted file mode 100644
index c241262c277..00000000000
--- a/test/units/testsuite-51.service
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-[Unit]
-Description=TEST-51-ISSUE-16115
-
-[Service]
-ExecStartPre=rm -f /failed /testok
-ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
-Type=oneshot
diff --git a/test/units/testsuite-51.sh b/test/units/testsuite-51.sh
deleted file mode 100755
index e603d953a4f..00000000000
--- a/test/units/testsuite-51.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: LGPL-2.1-or-later
-set -eux
-set -o pipefail
-
-systemctl start testsuite-51-repro-1
-systemctl start testsuite-51-repro-2
-systemctl start testsuite-51-repro-3
-sleep 5 # wait a bit in case there are restarts so we can count them below
-
-[[ "$(systemctl show testsuite-51-repro-1 -P NRestarts)" == "0" ]]
-[[ "$(systemctl show testsuite-51-repro-2 -P NRestarts)" == "0" ]]
-[[ "$(systemctl show testsuite-51-repro-3 -P NRestarts)" == "0" ]]
-
-touch /testok
diff --git a/test/units/testsuite-74.sh b/test/units/testsuite-74.sh
index 13c767e490e..5a07e7b78c2 100755
--- a/test/units/testsuite-74.sh
+++ b/test/units/testsuite-74.sh
@@ -3,12 +3,12 @@
 set -eux
 set -o pipefail
 
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
+
 : >/failed
 
-for script in "${0%.sh}".*.sh; do
-    echo "Running $script"
-    "./$script"
-done
+run_subtests
 
 touch /testok
 rm /failed
diff --git a/test/units/testsuite-81.sh b/test/units/testsuite-81.sh
index 13c767e490e..5a07e7b78c2 100755
--- a/test/units/testsuite-81.sh
+++ b/test/units/testsuite-81.sh
@@ -3,12 +3,12 @@
 set -eux
 set -o pipefail
 
+# shellcheck source=test/units/test-control.sh
+. "$(dirname "$0")"/test-control.sh
+
 : >/failed
 
-for script in "${0%.sh}".*.sh; do
-    echo "Running $script"
-    "./$script"
-done
+run_subtests
 
 touch /testok
 rm /failed