diff --git a/createRandomTest.cpp b/createRandomTest.cpp
index f74be9304..60a2039c8 100644
--- a/createRandomTest.cpp
+++ b/createRandomTest.cpp
@@ -32,6 +32,7 @@
 #include <libdevcore/CommonIO.h>
 #include <libdevcore/CommonData.h>
 #include <libevmcore/Instruction.h>
+#include <libevm/VM.h>
 #include "vm.h"
 
 using namespace std;
@@ -142,10 +143,16 @@ void doMyTests(json_spirit::mValue& v)
 
 		vm.reset(fev.gas);
 		bytes output;
+		u256 gas;
 		try
 		{
 			output = vm.go(fev).toBytes();
 		}
+		catch (eth::VMException const& _e)
+		{
+			cnote << "VM did throw an exception: " << diagnostic_information(_e);
+			gas = 0;
+		}
 		catch (Exception const& _e)
 		{
 			cnote << "VM did throw an exception: " << diagnostic_information(_e);
@@ -176,6 +183,6 @@ void doMyTests(json_spirit::mValue& v)
 		o["post"] = mValue(fev.exportState());
 		o["callcreates"] = fev.exportCallCreates();
 		o["out"] = "0x" + toHex(output);
-		fev.push(o, "gas", vm.gas());
+		fev.push(o, "gas", gas);
 	}
 }
diff --git a/vm.cpp b/vm.cpp
index b36d3dc2b..cacbf94cc 100644
--- a/vm.cpp
+++ b/vm.cpp
@@ -298,19 +298,27 @@ void doVMTests(json_spirit::mValue& v, bool _fillin)
 
 		bytes output;
 		VM vm(fev.gas);
+
+		u256 gas;
 		try
 		{
 			output = vm.go(fev, fev.simpleTrace()).toVector();
+			gas = vm.gas();
+		}
+		catch (VMException const& _e)
+		{
+			cnote << "VM did throw an exception: " << diagnostic_information(_e);
+			gas = 0;
 		}
 		catch (Exception const& _e)
 		{
 			cnote << "VM did throw an exception: " << diagnostic_information(_e);
-			//BOOST_ERROR("Failed VM Test with Exception: " << e.what());
+			BOOST_ERROR("Failed VM Test with Exception: " << _e.what());
 		}
 		catch (std::exception const& _e)
 		{
 			cnote << "VM did throw an exception: " << _e.what();
-			//BOOST_ERROR("Failed VM Test with Exception: " << e.what());
+			BOOST_ERROR("Failed VM Test with Exception: " << _e.what());
 		}
 
 		// delete null entries in storage for the sake of comparison
@@ -337,7 +345,7 @@ void doVMTests(json_spirit::mValue& v, bool _fillin)
 			o["post"] = mValue(fev.exportState());
 			o["callcreates"] = fev.exportCallCreates();
 			o["out"] = "0x" + toHex(output);
-			fev.push(o, "gas", vm.gas());
+			fev.push(o, "gas", gas);
 		}
 		else
 		{
@@ -352,7 +360,7 @@ void doVMTests(json_spirit::mValue& v, bool _fillin)
 
 			checkOutput(output, o);
 
-			BOOST_CHECK_EQUAL(toInt(o["gas"]), vm.gas());
+			BOOST_CHECK_EQUAL(toInt(o["gas"]), gas);
 
 			auto& expectedAddrs = test.addresses;
 			auto& resultAddrs = fev.addresses;
diff --git a/whisperTopic.cpp b/whisperTopic.cpp
new file mode 100644
index 000000000..493b37bc2
--- /dev/null
+++ b/whisperTopic.cpp
@@ -0,0 +1,84 @@
+/*
+	This file is part of cpp-ethereum.
+
+	cpp-ethereum is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	cpp-ethereum is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file whisperTopic.cpp
+ * @author Gav Wood <i@gavwood.com>
+ * @date 2014
+ */
+#include <functional>
+#include <boost/test/unit_test.hpp>
+#include <libp2p/Host.h>
+#include <libwhisper/WhisperPeer.h>
+#include <libwhisper/WhisperHost.h>
+using namespace std;
+using namespace dev;
+using namespace dev::p2p;
+using namespace dev::shh;
+
+BOOST_AUTO_TEST_SUITE(whisper)
+
+BOOST_AUTO_TEST_CASE(topic)
+{
+	g_logVerbosity = 0;
+
+	bool started = false;
+	unsigned result = 0;
+	std::thread listener([&]()
+	{
+		setThreadName("other");
+
+		Host ph("Test", NetworkPreferences(30303, "", false, true));
+		auto wh = ph.registerCapability(new WhisperHost());
+		ph.start();
+
+		started = true;
+
+		/// Only interested in odd packets
+		auto w = wh->installWatch(BuildTopicMask()("odd"));
+
+		for (int i = 0, last = 0; i < 100 && last < 81; ++i)
+		{
+			for (auto i: wh->checkWatch(w))
+			{
+				Message msg = wh->envelope(i).open();
+				last = RLP(msg.payload()).toInt<unsigned>();
+				cnote << "New message from:" << msg.from().abridged() << RLP(msg.payload()).toInt<unsigned>();
+				result += last;
+			}
+			this_thread::sleep_for(chrono::milliseconds(50));
+		}
+	});
+
+	while (!started)
+		this_thread::sleep_for(chrono::milliseconds(50));
+
+	Host ph("Test", NetworkPreferences(30300, "", false, true));
+	auto wh = ph.registerCapability(new WhisperHost());
+	ph.start();
+	ph.connect("127.0.0.1", 30303);
+
+	KeyPair us = KeyPair::create();
+	for (int i = 0; i < 10; ++i)
+	{
+		wh->post(us.sec(), RLPStream().append(i * i).out(), BuildTopic(i)(i % 2 ? "odd" : "even"));
+		this_thread::sleep_for(chrono::milliseconds(250));
+	}
+
+	listener.join();
+	BOOST_REQUIRE_EQUAL(result, 1 + 9 + 25 + 49 + 81);
+}
+
+BOOST_AUTO_TEST_SUITE_END()