diff --git a/rpc/src/v1/helpers/signing_queue.rs b/rpc/src/v1/helpers/signing_queue.rs
index b6ab6126f..c7abd4924 100644
--- a/rpc/src/v1/helpers/signing_queue.rs
+++ b/rpc/src/v1/helpers/signing_queue.rs
@@ -58,7 +58,7 @@ mod test {
 	#[test]
 	fn should_work_for_hashset() {
 		// given
-		let mut queue = Mutex::new(HashSet::new());
+		let queue = Mutex::new(HashSet::new());
 
 		let request = TransactionRequest {
 			from: Address::from(1),
diff --git a/rpc/src/v1/tests/mocked/eth_signing.rs b/rpc/src/v1/tests/mocked/eth_signing.rs
index 05ceaf3d3..07adc44b5 100644
--- a/rpc/src/v1/tests/mocked/eth_signing.rs
+++ b/rpc/src/v1/tests/mocked/eth_signing.rs
@@ -14,4 +14,64 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
+use std::collections::HashSet;
+use std::sync::{Arc, Mutex};
+use jsonrpc_core::IoHandler;
+use v1::impls::EthSigningQueueClient;
+use v1::traits::EthSigning;
+use v1::helpers::SigningQueue;
+use util::keys::TestAccount;
 
+struct EthSignerTester {
+	pub queue: Arc<SigningQueue>,
+	pub io: IoHandler,
+}
+
+impl Default for EthSignerTester {
+	fn default() -> Self {
+		let queue : Arc<SigningQueue> = Arc::new(Mutex::new(HashSet::new()));
+		let io = IoHandler::new();
+		io.add_delegate(EthSigningQueueClient::new(&queue).to_delegate());
+
+		EthSignerTester {
+			queue: queue,
+			io: io,
+		}
+	}
+}
+
+fn eth_signer() -> EthSignerTester {
+	EthSignerTester::default()
+}
+
+
+
+#[test]
+fn should_add_transaction_to_queue() {
+	// given
+	let tester = eth_signer();
+	let account = TestAccount::new("123");
+	let address = account.address();
+	assert_eq!(tester.queue.requests().len(), 0);
+
+	// when
+	let request = r#"{
+		"jsonrpc": "2.0",
+		"method": "eth_sendTransaction",
+		"params": [{
+			"from": ""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
+			"to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
+			"gas": "0x76c0",
+			"gasPrice": "0x9184e72a000",
+			"value": "0x9184e72a"
+		}],
+		"id": 1
+	}"#;
+	let response = r#"{"jsonrpc":"2.0","result":"0x0000000000000000000000000000000000000000000000000000000000000000","id":1}"#;
+
+
+	// then
+	assert_eq!(tester.io.handle_request(&request), Some(response.to_owned()));
+	assert_eq!(tester.queue.requests().len(), 1);
+
+}
diff --git a/rpc/src/v1/tests/mocked/mod.rs b/rpc/src/v1/tests/mocked/mod.rs
index 98caf6e08..450960f78 100644
--- a/rpc/src/v1/tests/mocked/mod.rs
+++ b/rpc/src/v1/tests/mocked/mod.rs
@@ -17,8 +17,10 @@
 //! RPC serialization tests.
 
 mod eth;
+mod eth_signing;
 mod net;
 mod web3;
 mod personal;
+mod personal_signer;
 mod ethcore;
 mod rpc;