Rename Palette to FRAME (#4182)

* palette -> frame

* PALETTE, Palette -> FRAME

* Move folder pallete -> frame

* Update docs/Structure.adoc

Co-Authored-By: Benjamin Kampmann <ben.kampmann@googlemail.com>

* Update docs/README.adoc

Co-Authored-By: Benjamin Kampmann <ben.kampmann@googlemail.com>

* Update README.adoc

substrate/frame/grandpa/src/mock.rs

@@ -0,0 +1,93 @@
+// Copyright 2018-2019 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/>.
+
+//! Test utilities
+
+#![cfg(test)]
+
+use sr_primitives::{Perbill, DigestItem, traits::IdentityLookup, testing::{Header, UintAuthorityId}};
+use runtime_io;
+use support::{impl_outer_origin, impl_outer_event, parameter_types};
+use primitives::H256;
+use codec::{Encode, Decode};
+use crate::{AuthorityId, AuthorityList, GenesisConfig, Trait, Module, ConsensusLog};
+use substrate_finality_grandpa_primitives::GRANDPA_ENGINE_ID;
+
+impl_outer_origin!{
+	pub enum Origin for Test {}
+}
+
+pub fn grandpa_log(log: ConsensusLog<u64>) -> DigestItem<H256> {
+	DigestItem::Consensus(GRANDPA_ENGINE_ID, log.encode())
+}
+
+// Workaround for https://github.com/rust-lang/rust/issues/26925 . Remove when sorted.
+#[derive(Clone, PartialEq, Eq, Debug, Decode, Encode)]
+pub struct Test;
+
+impl Trait for Test {
+	type Event = TestEvent;
+}
+parameter_types! {
+	pub const BlockHashCount: u64 = 250;
+	pub const MaximumBlockWeight: u32 = 1024;
+	pub const MaximumBlockLength: u32 = 2 * 1024;
+	pub const AvailableBlockRatio: Perbill = Perbill::one();
+}
+impl system::Trait for Test {
+	type Origin = Origin;
+	type Index = u64;
+	type BlockNumber = u64;
+	type Call = ();
+	type Hash = H256;
+	type Hashing = sr_primitives::traits::BlakeTwo256;
+	type AccountId = u64;
+	type Lookup = IdentityLookup<Self::AccountId>;
+	type Header = Header;
+	type Event = TestEvent;
+	type BlockHashCount = BlockHashCount;
+	type MaximumBlockWeight = MaximumBlockWeight;
+	type MaximumBlockLength = MaximumBlockLength;
+	type AvailableBlockRatio = AvailableBlockRatio;
+	type Version = ();
+}
+
+mod grandpa {
+	pub use crate::Event;
+}
+
+impl_outer_event!{
+	pub enum TestEvent for Test {
+		grandpa,
+	}
+}
+
+pub fn to_authorities(vec: Vec<(u64, u64)>) -> AuthorityList {
+	vec.into_iter()
+		.map(|(id, weight)| (UintAuthorityId(id).to_public_key::<AuthorityId>(), weight))
+		.collect()
+}
+
+pub fn new_test_ext(authorities: Vec<(u64, u64)>) -> runtime_io::TestExternalities {
+	let mut t = system::GenesisConfig::default().build_storage::<Test>().unwrap();
+	GenesisConfig {
+		authorities: to_authorities(authorities),
+	}.assimilate_storage::<Test>(&mut t).unwrap();
+	t.into()
+}
+
+pub type System = system::Module<Test>;
+pub type Grandpa = Module<Test>;