Add a simple test for dbus-daemon --fork

Signed-off-by: Simon McVittie <smcv@debian.org>
Reviewed-by: Colin Walters
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=97008

test/Makefile.am

@@ -168,6 +168,10 @@ installable_tests += \
 	test-sd-activation \
 	$(NULL)
 
+dist_installable_test_scripts += \
+	test-dbus-daemon-fork.sh \
+	$(NULL)
+
 # Testing dbus-launch relies on special code in that binary.
 if DBUS_ENABLE_EMBEDDED_TESTS
 dist_installable_test_scripts += \

test/test-dbus-daemon-fork.sh

@@ -0,0 +1,68 @@
+#!/bin/sh
+
+# Copyright © 2016 Collabora Ltd.
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation files
+# (the "Software"), to deal in the Software without restriction,
+# including without limitation the rights to use, copy, modify, merge,
+# publish, distribute, sublicense, and/or sell copies of the Software,
+# and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+set -e
+
+export DBUS_DEBUG_OUTPUT=1
+echo "# dbus-daemon binary: ${DBUS_TEST_DAEMON:=dbus-daemon}"
+echo "# dbus-send binary: ${DBUS_TEST_DBUS_SEND:=dbus-send}"
+
+if test -n "$DBUS_TEST_DATA"; then
+    echo "# test data: $DBUS_TEST_DATA"
+    config="--config-file=$DBUS_TEST_DATA/valid-config-files/session.conf"
+elif test -n "$DBUS_TEST_DATADIR"; then
+    echo "# datadir: $DBUS_TEST_DATADIR"
+    config="--config-file=$DBUS_TEST_DATADIR/dbus-1/session.conf"
+else
+    echo "# using standard session bus configuration"
+    config="--session"
+fi
+
+if ! workdir="$(mktemp -d)"; then
+    echo "1..0 # SKIP - mktemp -d doesn't work"
+    exit 0
+fi
+
+echo "1..1"
+
+unset DBUS_SESSION_BUS_ADDRESS
+unset DBUS_SESSION_BUS_PID
+rm -f "$workdir"/address "$workdir"/pid
+
+${DBUS_TEST_DAEMON} --fork --print-address=8 --print-pid=9 "$config" \
+    8>"$workdir/address" 9>"$workdir/pid"
+
+export DBUS_SESSION_BUS_ADDRESS="$(cat "$workdir"/address)"
+test -n "$DBUS_SESSION_BUS_ADDRESS"
+DBUS_SESSION_BUS_PID="$(cat "$workdir"/pid)"
+kill -0 "$DBUS_SESSION_BUS_PID"
+
+${DBUS_TEST_DBUS_SEND} --session --dest=org.freedesktop.DBus \
+    --type=method_call --print-reply / org.freedesktop.DBus.ListNames >&2
+
+kill "$DBUS_SESSION_BUS_PID"
+
+echo "ok 1 - normal dbus-daemon"
+
+rm -r "$workdir"