diff --git a/ethcore/src/engines/authority_round.rs b/ethcore/src/engines/authority_round.rs
index 0165b4e17..e5dc0934e 100644
--- a/ethcore/src/engines/authority_round.rs
+++ b/ethcore/src/engines/authority_round.rs
@@ -296,7 +296,10 @@ impl Engine for AuthorityRound {
 
 #[cfg(test)]
 mod tests {
-	use common::*;
+	use util::*;
+	use env_info::EnvInfo;
+	use header::Header;
+	use error::{Error, BlockError};
 	use rlp::encode;
 	use block::*;
 	use tests::helpers::*;
@@ -379,7 +382,7 @@ mod tests {
 
 		header.set_author(addr);
 
-		let signature = tap.sign_with_password(addr, "0".into(), header.bare_hash()).unwrap();
+		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		let timestamp = UNIX_EPOCH.elapsed().unwrap().as_secs();
 		let step = timestamp + timestamp % 2 + 1;
 		header.set_seal(vec![encode(&step).to_vec(), encode(&(&*signature as &[u8])).to_vec()]);
diff --git a/ethcore/src/lib.rs b/ethcore/src/lib.rs
index c7c92a6f9..bf3e59171 100644
--- a/ethcore/src/lib.rs
+++ b/ethcore/src/lib.rs
@@ -155,9 +155,8 @@ mod blockchain;
 mod types;
 mod factory;
 
-//#[cfg(test)]
-#[allow(missing_docs)]
-pub mod tests;
+#[cfg(test)]
+mod tests;
 #[cfg(test)]
 #[cfg(feature="json-tests")]
 mod json_tests;
diff --git a/ethcore/src/tests/helpers.rs b/ethcore/src/tests/helpers.rs
index 3d2ca6b3e..96d5f8366 100644
--- a/ethcore/src/tests/helpers.rs
+++ b/ethcore/src/tests/helpers.rs
@@ -23,6 +23,7 @@ use state_db::StateDB;
 use block::{OpenBlock, Drain};
 use blockchain::{BlockChain, Config as BlockChainConfig};
 use builtin::Builtin;
+use state::*;
 use evm::Schedule;
 use engines::Engine;
 use env_info::EnvInfo;
@@ -339,7 +340,6 @@ pub fn get_temp_state_db() -> GuardedTempResult<StateDB> {
 	}
 }
 
-#[cfg(test)]
 pub fn get_temp_state() -> GuardedTempResult<State> {
 	let temp = RandomTempPath::new();
 	let journal_db = get_temp_state_db_in(temp.as_path());
@@ -356,7 +356,6 @@ pub fn get_temp_state_db_in(path: &Path) -> StateDB {
 	StateDB::new(journal_db, 5 * 1024 * 1024)
 }
 
-#[cfg(test)]
 pub fn get_temp_state_in(path: &Path) -> State {
 	let journal_db = get_temp_state_db_in(path);
 	State::new(journal_db, U256::from(0), Default::default())
diff --git a/ethcore/src/tests/mod.rs b/ethcore/src/tests/mod.rs
index 86266c1d0..4157e486d 100644
--- a/ethcore/src/tests/mod.rs
+++ b/ethcore/src/tests/mod.rs
@@ -15,7 +15,6 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 pub mod helpers;
-#[cfg(test)]
 mod client;
 #[cfg(feature="ipc")]
 mod rpc;