dbus-broker: add ptest support

It takes less than 30 seconds to execute.

Add a backported patch that fixes a broken test.

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/conf/include/ptest-packagelists-meta-oe.inc

@@ -12,6 +12,7 @@ PTESTS_FAST_META_OE = "\
     cli11 \
     cmocka \
     cunit \
+    ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'dbus-broker', '', d)} \
     duktape \
     exiv2 \
     fuse3 \

meta-oe/recipes-core/dbus/dbus-broker/0001-test-sockopt-loosen-verification-of-stale-pidfds.patch

@@ -0,0 +1,52 @@
+From cc7f9da25b103aacbb1595d04af9cb70ef8f43d9 Mon Sep 17 00:00:00 2001
+From: Gyorgy Sarvari <skandigraun@gmail.com>
+Date: Thu, 4 Sep 2025 10:23:36 +0200
+Subject: [PATCH] test/sockopt: loosen verification of stale pidfds
+
+From: David Rheinsberg <david@readahead.eu>
+
+Newer kernels now properly return stale pidfds from AF_UNIX sockets,
+rather than refusing the operation. Ensure that our tests adopt to this
+and properly verify staleness.
+
+Signed-off-by: David Rheinsberg <david@readahead.eu>
+Upstream-Status: Backport [https://github.com/bus1/dbus-broker/commit/fd5c6e191bffcf5b3e6c9abb8b0b03479accc04b]
+Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
+---
+ src/util/test-sockopt.c | 16 ++++++++++++----
+ 1 file changed, 12 insertions(+), 4 deletions(-)
+
+diff --git a/src/util/test-sockopt.c b/src/util/test-sockopt.c
+index 04148af..eaa8fba 100644
+--- a/src/util/test-sockopt.c
++++ b/src/util/test-sockopt.c
+@@ -81,17 +81,25 @@ static void test_peerpidfd_client(
+ 
+         r = sockopt_get_peerpidfd(fd, &pidfd);
+         if (r != SOCKOPT_E_UNSUPPORTED) {
+-                if (stale) {
+-                        c_assert(r == SOCKOPT_E_REAPED);
++                if (r == SOCKOPT_E_REAPED) {
++                        /*
++                         * Old kernels refused to return stale pidfds. Hence,
++                         * in that case verify that we expected a stale pidfd.
++                         */
++                        c_assert(stale);
+                 } else {
+                         c_assert(!r);
+                         c_assert(pidfd >= 0);
+ 
+                         r = proc_resolve_pidfd(pidfd, &pid_socket);
+                         c_assert(!r);
+-                        c_assert(pid_socket > 0);
+ 
+-                        c_assert(pid_socket == pid_server);
++                        if (stale) {
++                                c_assert(pid_socket == -1);
++                        } else {
++                                c_assert(pid_socket > 0);
++                                c_assert(pid_socket == pid_server);
++                        }
+                 }
+         }
+ }

meta-oe/recipes-core/dbus/dbus-broker/run-ptest

@@ -0,0 +1,19 @@
+#!/bin/sh
+RET=0
+
+run_tests(){
+  for t in *; do
+    if ./$t; then
+      echo PASS: $t
+    else
+      echo FAIL: $t
+      RET=1
+    fi
+  done
+}
+
+cd /usr/lib/dbus-broker/tests/dbus
+run_tests
+cd /usr/lib/dbus-broker/tests/unit
+run_tests
+exit $RET

meta-oe/recipes-core/dbus/dbus-broker_37.bb

@@ -10,7 +10,10 @@ DEPENDS = "\
     ${@bb.utils.contains('DISTRO_FEATURES', 'selinux', 'libselinux (>= 3.2)', '', d)} \
 "
 
-SRC_URI = "https://github.com/bus1/dbus-broker/releases/download/v${PV}/${BP}.tar.xz"
+SRC_URI = "https://github.com/bus1/dbus-broker/releases/download/v${PV}/${BP}.tar.xz \
+           file://0001-test-sockopt-loosen-verification-of-stale-pidfds.patch \
+           file://run-ptest \
+           "
 SRC_URI[sha256sum] = "f819a8db8795fa08c767612e3823fd594694a0990f2543ecf35d6a1a6bf2ab5b"
 
 UPSTREAM_CHECK_URI = "https://github.com/bus1/${BPN}/releases"
@@ -18,10 +21,11 @@ UPSTREAM_CHECK_REGEX = "releases/tag/v(?P<pver>\d+)"
 
 SYSTEMD_SERVICE:${PN} = "${BPN}.service"
 
-inherit meson pkgconfig systemd features_check
+inherit meson pkgconfig systemd features_check ptest
 
 EXTRA_OEMESON += "-Daudit=${@bb.utils.contains('DISTRO_FEATURES', 'selinux', 'true', 'false', d)}"
 EXTRA_OEMESON += "-Dselinux=${@bb.utils.contains('DISTRO_FEATURES', 'selinux', 'true', 'false', d)}"
+EXTRA_OEMESON += "-Dtests=${@bb.utils.contains('PTEST_ENABLED', '1', 'true', 'false', d)}"
 
 REQUIRED_DISTRO_FEATURES = "systemd"
 
@@ -36,3 +40,7 @@ RDEPENDS:${PN} += "dbus-common dbus-tools"
 FILES:${PN} += "${nonarch_libdir}/systemd/catalog"
 FILES:${PN} += "${systemd_system_unitdir}"
 FILES:${PN} += "${systemd_user_unitdir}"
+FILES:${PN}-ptest += "${libdir}/${PN}/tests"
+
+# test-sockopt fails to compile with musl without this flag
+CFLAGS:append:libc-musl = "${@bb.utils.contains('PTEST_ENABLED', '1', ' -Wno-error=incompatible-pointer-types ', '', d)}"