initial test setup

ethcore/src/substate.rs

@@ -56,6 +56,12 @@ mod tests {
 	use super::*;
 	use common::*;
 
+	#[test]
+	fn created() {
+		let mut sub_state = Substate::new();
+		assert_eq!(sub_state.suicides.len(), 0);
+	}
+
 	#[test]
 	fn accrue() {
 		let mut sub_state = Substate::new();