Proper test

substrate/runtime/executive/src/lib.rs

@@ -357,13 +357,12 @@ mod tests {
 	}
 
 	#[test]
-	#[should_panic]
 	fn bad_extrinsic_not_inserted() {
 		let mut t = new_test_ext();
-		let xt = primitives::testing::TestXt((1, 0, Call::transfer(2.into(), 69)));
+		let xt = primitives::testing::TestXt((1, 42, Call::transfer(33.into(), 69)));
 		with_externalities(&mut t, || {
 			Executive::initialise_block(&Header::new(1, H256::default(), H256::default(), [69u8; 32].into(), Digest::default()));
-			Executive::apply_extrinsic(xt).unwrap();
+			assert!(Executive::apply_extrinsic(xt).is_err());
 			assert_eq!(<system::Module<Test>>::extrinsic_index(), 0);
 		});
 	}

substrate/runtime/system/src/lib.rs

@@ -185,7 +185,6 @@ impl<T: Trait> Module<T> {
 
 	/// Remove all extrinsics data and save the extrinsics trie root.
 	pub fn derive_extrinsics() {
-		println!("INDEX: {:?}", Self::extrinsic_index());
 		let extrinsics = (0..Self::extrinsic_index()).map(<ExtrinsicData<T>>::take).collect();
 		let xts_root = extrinsics_data_root::<T::Hashing>(extrinsics);
 		<ExtrinsicsRoot<T>>::put(xts_root);