diff --git a/TestHelper.cpp b/TestHelper.cpp
index 68fdd748d..277c3351c 100644
--- a/TestHelper.cpp
+++ b/TestHelper.cpp
@@ -65,7 +65,7 @@ void connectClients(Client& c1, Client& c2)
 namespace test
 {
 
-ImportTest::ImportTest(json_spirit::mObject& _o, bool isFiller):m_TestObject(_o)
+ImportTest::ImportTest(json_spirit::mObject& _o, bool isFiller): m_TestObject(_o)
 {
 	importEnv(_o["env"].get_obj());
 	importState(_o["pre"].get_obj(), m_statePre);
@@ -79,12 +79,12 @@ ImportTest::ImportTest(json_spirit::mObject& _o, bool isFiller):m_TestObject(_o)
 
 void ImportTest::importEnv(json_spirit::mObject& _o)
 {
-	assert(_o.count("previousHash") > 0);
-	assert(_o.count("currentGasLimit") > 0);
-	assert(_o.count("currentDifficulty") > 0);
-	assert(_o.count("currentTimestamp") > 0);
-	assert(_o.count("currentCoinbase") > 0);
-	assert(_o.count("currentNumber") > 0);
+	BOOST_REQUIRE(_o.count("previousHash") > 0);
+	BOOST_REQUIRE(_o.count("currentGasLimit") > 0);
+	BOOST_REQUIRE(_o.count("currentDifficulty") > 0);
+	BOOST_REQUIRE(_o.count("currentTimestamp") > 0);
+	BOOST_REQUIRE(_o.count("currentCoinbase") > 0);
+	BOOST_REQUIRE(_o.count("currentNumber") > 0);
 
 	m_environment.previousBlock.hash = h256(_o["previousHash"].get_str());
 	m_environment.currentBlock.number = toInt(_o["currentNumber"]);
@@ -103,10 +103,10 @@ void ImportTest::importState(json_spirit::mObject& _o, State& _state)
 	{
 		json_spirit::mObject o = i.second.get_obj();
 
-		assert(o.count("balance") > 0);
-		assert(o.count("nonce") > 0);
-		assert(o.count("storage") > 0);
-		assert(o.count("code") > 0);
+		BOOST_REQUIRE(o.count("balance") > 0);
+		BOOST_REQUIRE(o.count("nonce") > 0);
+		BOOST_REQUIRE(o.count("storage") > 0);
+		BOOST_REQUIRE(o.count("code") > 0);
 
 		Address address = Address(i.first);
 
@@ -115,8 +115,7 @@ void ImportTest::importState(json_spirit::mObject& _o, State& _state)
 
 		bytes code = importCode(o);
 
-		toInt(o["nonce"]);
-		if (toHex(code).size())
+		if (code.size())
 		{
 			_state.m_cache[address] = Account(toInt(o["balance"]), Account::ContractConception);
 			i.second.get_obj()["code"] = "0x" + toHex(code); //preperation for export
@@ -134,23 +133,17 @@ void ImportTest::importState(json_spirit::mObject& _o, State& _state)
 
 void ImportTest::importTransaction(json_spirit::mObject& _o)
 {
-	assert(_o.count("nonce")> 0);
-	assert(_o.count("gasPrice") > 0);
-	assert(_o.count("gasLimit") > 0);
-	assert(_o.count("to") > 0);
-	assert(_o.count("value") > 0);
-	assert(_o.count("secretKey") > 0);
-	assert(_o.count("data") > 0);
+	BOOST_REQUIRE(_o.count("nonce")> 0);
+	BOOST_REQUIRE(_o.count("gasPrice") > 0);
+	BOOST_REQUIRE(_o.count("gasLimit") > 0);
+	BOOST_REQUIRE(_o.count("to") > 0);
+	BOOST_REQUIRE(_o.count("value") > 0);
+	BOOST_REQUIRE(_o.count("secretKey") > 0);
+	BOOST_REQUIRE(_o.count("data") > 0);
 
-	m_transaction.nonce = toInt(_o["nonce"]);
-	m_transaction.gasPrice = toInt(_o["gasPrice"]);
-	m_transaction.gas = toInt(_o["gasLimit"]);
-	m_transaction.receiveAddress = Address(_o["to"].get_str());
-	m_transaction.type = m_transaction.receiveAddress ? Transaction::MessageCall : Transaction::ContractCreation;
-	m_transaction.value = toInt(_o["value"]);
-	Secret secretKey = Secret(_o["secretKey"].get_str());
-	m_transaction.sign(secretKey);
-	m_transaction.data = importData(_o);
+	m_transaction = _o["to"].get_str().empty() ?
+		Transaction(toInt(_o["value"]), toInt(_o["gasPrice"]), toInt(_o["gasLimit"]), importData(_o), toInt(_o["nonce"]), Secret(_o["secretKey"].get_str())) :
+		Transaction(toInt(_o["value"]), toInt(_o["gasPrice"]), toInt(_o["gasLimit"]), Address(_o["to"].get_str()), importData(_o), toInt(_o["nonce"]), Secret(_o["secretKey"].get_str()));
 }
 
 void ImportTest::exportTest(bytes _output, State& _statePost)
@@ -210,7 +203,7 @@ byte toByte(json_spirit::mValue const& _v)
 	return 0;
 }
 
-bytes importData(json_spirit::mObject & _o)
+bytes importData(json_spirit::mObject& _o)
 {
 	bytes data;
 	if (_o["data"].type() == json_spirit::str_type)
@@ -225,7 +218,7 @@ bytes importData(json_spirit::mObject & _o)
 	return data;
 }
 
-bytes importCode(json_spirit::mObject & _o)
+bytes importCode(json_spirit::mObject& _o)
 {
 	bytes code;
 	if (_o["code"].type() == json_spirit::str_type)
@@ -238,11 +231,11 @@ bytes importCode(json_spirit::mObject & _o)
 		code.clear();
 		for (auto const& j: _o["code"].get_array())
 			code.push_back(toByte(j));
-	}
+	}	
 	return code;
 }
 
-void checkOutput(bytes const& _output, json_spirit::mObject & _o)
+void checkOutput(bytes const& _output, json_spirit::mObject& _o)
 {
 	int j = 0;
 	if (_o["out"].type() == json_spirit::array_type)
diff --git a/state.cpp b/state.cpp
index 3a81821ef..2e313cc47 100644
--- a/state.cpp
+++ b/state.cpp
@@ -121,10 +121,10 @@ BOOST_AUTO_TEST_CASE(stExample)
 	dev::test::executeTests("stExample", "/StateTests", dev::test::doStateTests);
 }
 
-//BOOST_AUTO_TEST_CASE(stSystemOperationsTest)
-//{
-//	dev::test::executeStateTests("stSystemOperationsTest");
-//}
+BOOST_AUTO_TEST_CASE(stSystemOperationsTest)
+{
+	dev::test::executeTests("stSystemOperationsTest", "/StateTests", dev::test::doStateTests);
+}
 
 BOOST_AUTO_TEST_CASE(tmp)
 {
diff --git a/stateOriginal.cpp b/stateOriginal.cpp
index e6b3ab959..8344894f4 100644
--- a/stateOriginal.cpp
+++ b/stateOriginal.cpp
@@ -65,12 +65,7 @@ int stateTest()
 	// Inject a transaction to transfer funds from miner to me.
 	bytes tx;
 	{
-		Transaction t;
-		t.nonce = s.transactionsFrom(myMiner.address());
-		t.value = 1000;			// 1e3 wei.
-		t.type = eth::Transaction::MessageCall;
-		t.receiveAddress = me.address();
-		t.sign(myMiner.secret());
+		Transaction t(1000, 0, 0, me.address(), bytes(), s.transactionsFrom(myMiner.address()), myMiner.secret());
 		assert(t.sender() == myMiner.address());
 		tx = t.rlp();
 	}
diff --git a/vm.cpp b/vm.cpp
index b9df6af2f..0457d7bbb 100644
--- a/vm.cpp
+++ b/vm.cpp
@@ -232,8 +232,8 @@ void FakeExtVM::importCallCreates(mArray& _callcreates)
 		BOOST_REQUIRE(tx.count("destination") > 0);
 		BOOST_REQUIRE(tx.count("gasLimit") > 0);
 Transaction t = tx["destination"].get_str().empty() ?
-			Transaction(toInt(tx["value"]), 0, toInt(tx["gasLimit"]), data) :
-			Transaction(toInt(tx["value"]), 0, toInt(tx["gasLimit"]), Address(tx["destination"].get_str()), data);
+			Transaction(toInt(tx["value"]), 0, toInt(tx["gasLimit"]), data.toBytes()) :
+			Transaction(toInt(tx["value"]), 0, toInt(tx["gasLimit"]), Address(tx["destination"].get_str()), data.toBytes());
 		callcreates.push_back(t);
 	}
 }
@@ -423,16 +423,6 @@ BOOST_AUTO_TEST_CASE(vmPushDupSwapTest)
 	dev::test::executeTests("vmPushDupSwapTest", "/VMTests", dev::test::doVMTests);
 }
 
-BOOST_AUTO_TEST_CASE(vmNamecoin)
-{
-	dev::test::executeTests("vmNamecoin", "/VMTests", dev::test::doVMTests);
-}
-
-//BOOST_AUTO_TEST_CASE(vmSystemOperationsTest)
-//{
-//	dev::test::executeTests("vmSystemOperationsTest", "/VMTests", dev::test::doVMTests);
-//}
-
 BOOST_AUTO_TEST_CASE(userDefinedFile)
 {
 	if (boost::unit_test::framework::master_test_suite().argc == 2)
diff --git a/vmSha3TestFiller.json b/vmSha3TestFiller.json
index 03391e8cb..beb1ea22f 100644
--- a/vmSha3TestFiller.json
+++ b/vmSha3TestFiller.json
@@ -167,7 +167,7 @@
         }
     },
 
-    "sha3_4": {
+    "sha3_5": {
         "env" : {
             "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
             "currentNumber" : "0",
@@ -194,32 +194,4 @@
             "gas" : "10000"
         }
     },
-
-//    "sha3_5": {
-//        "env" : {
-//            "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
-//            "currentNumber" : "0",
-//            "currentGasLimit" : "1000000",
-//            "currentDifficulty" : "256",
-//            "currentTimestamp" : 1,
-//            "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
-//        },
-//        "pre" : {
-//            "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
-//                "balance" : "1000000000000000000",
-//                "nonce" : 0,
-//                "code" : "{ [[ 0 ]] (SHA3  100 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)}",
-//                "storage": {}
-//            }
-//        },
-//        "exec" : {
-//            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
-//            "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
-//            "caller" : "cd1722f3947def4cf144679da39c4c32bdc35681",
-//            "value" : "1000000000000000000",
-//            "data" : "",
-//            "gasPrice" : "100000000000000",
-//            "gas" : "10000"
-//        }
-//    }
 }