Rename folder: primitives/sr-primitives -> primitives/runtime (#4280)

* primitives/sr-primitives -> primitives/runtime

* update

substrate/primitives/runtime/src/generic/tests.rs

@@ -0,0 +1,60 @@
+// Copyright 2017-2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Tests for the generic implementations of Extrinsic/Header/Block.
+
+use crate::codec::{Decode, Encode};
+use primitives::H256;
+use super::DigestItem;
+
+#[test]
+fn system_digest_item_encoding() {
+	let item = DigestItem::ChangesTrieRoot::<H256>(H256::default());
+	let encoded = item.encode();
+	assert_eq!(encoded, vec![
+		// type = DigestItemType::ChangesTrieRoot
+		2,
+		// trie root
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+	]);
+
+	let decoded: DigestItem<H256> = Decode::decode(&mut &encoded[..]).unwrap();
+	assert_eq!(item, decoded);
+}
+
+#[test]
+fn non_system_digest_item_encoding() {
+	let item = DigestItem::Other::<H256>(vec![10, 20, 30]);
+	let encoded = item.encode();
+	assert_eq!(encoded, vec![
+		// type = DigestItemType::Other
+		0,
+		// length of other data
+		12,
+		// authorities
+		10, 20, 30,
+	]);
+
+	let decoded: DigestItem<H256> = Decode::decode(&mut &encoded[..]).unwrap();
+	assert_eq!(item, decoded);
+}