added a test for message forward

on R5 it seems a reply to a asynchronously-forwarded synchronous BMessage is the same as when no forward happens
I didn't test on Haiku, but I suspect the behavior is different, especially a _previous_ is added as for asynchronous BMessages


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17814 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/kits/app/bmessenger/ForwardMessageTest.cpp

@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <Application.h>
+#include <Looper.h>
+
+class MyLooper :  public BLooper
+{
+public:
+	MyLooper(BLooper *looper) : BLooper("test") {
+		printf("Looper created\n");
+		fLooper = looper;
+	};
+
+	virtual void MessageReceived(BMessage *msg) {
+	printf("MessageReceived : %.4s\n", (char*)&msg->what);
+	switch (msg->what) {
+	case 'toto':
+		if (fLooper) {
+			BMessenger(fLooper).SendMessage(msg);
+			break;
+		}
+		msg->SendReply('couc');
+		break;
+	default:
+		BLooper::MessageReceived(msg);
+	}
+	};
+
+	BLooper *fLooper;
+};
+
+class App : public BApplication
+{
+public:
+	App() : BApplication("application/test") { 
+		
+	};
+	virtual void ReadyToRun() {
+		MyLooper looper2(NULL);
+		looper2.Run();
+		MyLooper looper1(&looper2);
+		looper1.Run();
+		printf("loopers run\n");
+		BMessage reply;
+		BMessenger(&looper1).SendMessage('toto', &reply);
+		printf("message sent and replied\ncheck there is only a 'couc' what in  the reply\n");
+		reply.PrintToStream();
+		exit(0);
+	};
+
+};
+
+int main()
+{
+	App().Run();
+}

src/tests/kits/app/bmessenger/Jamfile

@@ -9,4 +9,9 @@ UnitTest SMRemoteTargetApp
 	: be $(TARGET_LIBSTDC++)
 ;
 
+SimpleTest ForwardMessageTest :
+        ForwardMessageTest.cpp
+        : be
+        ;
+
 SubInclude HAIKU_TOP src tests kits app bmessenger testapps ;