[vala] D-Bus: Add test for file descriptor passing

[Jürg Billeter <juergbi src gnome org>]

commit 56ef7198d010aa7c908b8e5e41c1677a7447db72
Author: Jürg Billeter <j bitron ch>
Date:   Mon Oct 18 12:00:39 2010 +0200

    D-Bus: Add test for file descriptor passing

 tests/Makefile.am              |    1 +
 tests/dbus/filedescriptor.test |   84 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 85 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 26436cc..e4bbbe1 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -96,6 +96,7 @@ TESTS = \
 	dbus/async.test \
 	dbus/async-errors.test \
 	dbus/signals.test \
+	dbus/filedescriptor.test \
 	dbus/bug596862.vala \
 	dbus/bug602003.test \
 	$(NULL)
diff --git a/tests/dbus/filedescriptor.test b/tests/dbus/filedescriptor.test
new file mode 100644
index 0000000..50a246d
--- /dev/null
+++ b/tests/dbus/filedescriptor.test
@@ -0,0 +1,84 @@
+Packages: gio-2.0 gio-unix-2.0 posix
+D-Bus
+
+Program: client
+
+[DBus (name = "org.example.Test")]
+interface Test : Object {
+	public abstract UnixInputStream test_in (UnixInputStream i, out UnixInputStream j) throws IOError;
+}
+
+void main () {
+	// client
+	Test test = Bus.get_proxy_sync (BusType.SESSION, "org.example.Test", "/org/example/test");
+
+	uint8[] buffer = new uint8[1];
+
+	int[] pipe1 = new int[2];
+	assert (Posix.pipe (pipe1) == 0);
+	buffer[0] = 42;
+	assert (Posix.write (pipe1[1], buffer, 1) == 1);
+	Posix.close (pipe1[1]);
+
+	UnixInputStream j, k;
+	k = test.test_in (new UnixInputStream (pipe1[0], true), out j);
+
+	assert (j.read (buffer, 1) == 1);
+	assert (buffer[0] == 23);
+
+	assert (k.read (buffer, 1) == 1);
+	assert (buffer[0] == 11);
+}
+
+Program: server
+
+[DBus (name = "org.example.Test")]
+class Test : Object {
+	public UnixInputStream test_in (UnixInputStream i, out UnixInputStream j) throws IOError {
+		uint8[] buffer = new uint8[1];
+
+		assert (i.read (buffer, 1) == 1);
+		assert (buffer[0] == 42);
+
+		int[] pipe1 = new int[2];
+		assert (Posix.pipe (pipe1) == 0);
+		buffer[0] = 23;
+		assert (Posix.write (pipe1[1], buffer, 1) == 1);
+		Posix.close (pipe1[1]);
+
+		int[] pipe2 = new int[2];
+		assert (Posix.pipe (pipe2) == 0);
+		buffer[0] = 11;
+		assert (Posix.write (pipe2[1], buffer, 1) == 1);
+		Posix.close (pipe2[1]);
+
+		j = new UnixInputStream (pipe1[0], true);
+		return new UnixInputStream (pipe2[0], true);
+	}
+}
+
+MainLoop main_loop;
+
+void client_exit (Pid pid, int status) {
+	// client finished, terminate server
+	assert (status == 0);
+	main_loop.quit ();
+}
+
+void main () {
+	var conn = Bus.get_sync (BusType.SESSION);
+	conn.register_object ("/org/example/test", new Test ());
+
+	// try to register service in session bus
+	var request_result = conn.call_sync ("org.freedesktop.DBus", "/org/freedesktop/DBus", "org.freedesktop.DBus", "RequestName",
+	                                      new Variant ("(su)", "org.example.Test", 0x4), null, 0, -1);
+	assert ((uint) request_result.get_child_value (0) == 1);
+
+	// server ready, spawn client
+	Pid client_pid;
+	Process.spawn_async (null, { "test", "/dbus/filedescriptor/client" }, null, SpawnFlags.DO_NOT_REAP_CHILD, null, out client_pid);
+	ChildWatch.add (client_pid, client_exit);
+
+	main_loop = new MainLoop ();
+	main_loop.run ();
+}