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1 files changed, 127 insertions, 0 deletions

diff --git a/messagebus/src/tests/trace-roundtrip/trace-roundtrip.cpp b/messagebus/src/tests/trace-roundtrip/trace-roundtrip.cpp
new file mode 100644
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+++ b/messagebus/src/tests/trace-roundtrip/trace-roundtrip.cpp
@@ -0,0 +1,127 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+#include <vespa/fastos/fastos.h>
+#include <vespa/log/log.h>
+LOG_SETUP("simple-roundtrip_test");
+#include <vespa/vespalib/testkit/testapp.h>
+#include <vespa/messagebus/emptyreply.h>
+#include <vespa/messagebus/messagebus.h>
+#include <vespa/messagebus/sourcesession.h>
+#include <vespa/messagebus/intermediatesession.h>
+#include <vespa/messagebus/destinationsession.h>
+#include <vespa/messagebus/testlib/slobrok.h>
+#include <vespa/messagebus/testlib/testserver.h>
+#include <vespa/messagebus/routing/routingspec.h>
+#include <vespa/messagebus/testlib/receptor.h>
+#include <vespa/messagebus/sourcesessionparams.h>
+#include <vespa/messagebus/testlib/simplemessage.h>
+#include <vespa/messagebus/testlib/simplereply.h>
+#include <vespa/messagebus/testlib/simpleprotocol.h>
+
+using namespace mbus;
+
+//-----------------------------------------------------------------------------
+
+class Proxy : public IMessageHandler,
+              public IReplyHandler
+{
+private:
+    IntermediateSession::UP _session;
+public:
+    Proxy(MessageBus &bus);
+    void handleMessage(Message::UP msg);
+    void handleReply(Reply::UP reply);
+};
+
+Proxy::Proxy(MessageBus &bus)
+    : _session(bus.createIntermediateSession("session", true, *this, *this))
+{
+}
+
+void
+Proxy::handleMessage(Message::UP msg) {
+    msg->getTrace().trace(1, "Proxy message", false);
+    _session->forward(std::move(msg));
+}
+
+void
+Proxy::handleReply(Reply::UP reply) {
+    reply->getTrace().trace(1, "Proxy reply", false);
+    _session->forward(std::move(reply));
+}
+
+//-----------------------------------------------------------------------------
+
+class Server : public IMessageHandler
+{
+private:
+    DestinationSession::UP _session;
+public:
+    Server(MessageBus &bus);
+    void handleMessage(Message::UP msg);
+};
+
+Server::Server(MessageBus &bus)
+    : _session(bus.createDestinationSession("session", true, *this))
+{
+}
+
+void
+Server::handleMessage(Message::UP msg) {
+    msg->getTrace().trace(1, "Server message", false);
+    Reply::UP reply(new EmptyReply());
+    msg->swapState(*reply);
+    reply->getTrace().trace(1, "Server reply", false);
+    _session->reply(std::move(reply));
+}
+
+//-----------------------------------------------------------------------------
+
+TEST_SETUP(Test);
+
+RoutingSpec getRouting() {
+    return RoutingSpec()
+        .addTable(RoutingTableSpec("Simple")
+                  .addHop(HopSpec("pxy", "test/pxy/session"))
+                  .addHop(HopSpec("dst", "test/dst/session"))
+                  .addRoute(RouteSpec("test").addHop("pxy").addHop("dst")));
+}
+
+int
+Test::Main()
+{
+    TEST_INIT("simple-roundtrip_test");
+
+    Slobrok     slobrok;
+    TestServer  srcNet(Identity("test/src"), getRouting(), slobrok);
+    TestServer  pxyNet(Identity("test/pxy"), getRouting(), slobrok);
+    TestServer  dstNet(Identity("test/dst"), getRouting(), slobrok);
+
+    Receptor    src;
+    Proxy       pxy(pxyNet.mb);
+    Server      dst(dstNet.mb);
+
+    SourceSession::UP ss = srcNet.mb.createSourceSession(src, SourceSessionParams());
+
+    // wait for slobrok registration
+    ASSERT_TRUE(srcNet.waitSlobrok("test/pxy/session"));
+    ASSERT_TRUE(srcNet.waitSlobrok("test/dst/session"));
+    ASSERT_TRUE(pxyNet.waitSlobrok("test/dst/session"));
+
+    Message::UP msg(new SimpleMessage(""));
+    msg->getTrace().setLevel(1);
+    msg->getTrace().trace(1, "Client message", false);
+    ss->send(std::move(msg), "test");
+    Reply::UP reply = src.getReply();
+    reply->getTrace().trace(1, "Client reply", false);
+    EXPECT_TRUE(reply->getNumErrors() == 0);
+
+    TraceNode t = TraceNode()
+                  .addChild("Client message")
+                  .addChild("Proxy message")
+                  .addChild("Server message")
+                  .addChild("Server reply")
+                  .addChild("Proxy reply")
+                  .addChild("Client reply");
+    EXPECT_TRUE(reply->getTrace().getRoot().encode() == t.encode());
+    TEST_DONE();
+}