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/im-online/src/mock.rs

@@ -0,0 +1,178 @@
+// Copyright 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 std::cell::RefCell;
+
+use crate::{Module, Trait};
+use sr_primitives::Perbill;
+use sr_staking_primitives::{SessionIndex, offence::ReportOffence};
+use sr_primitives::testing::{Header, UintAuthorityId, TestXt};
+use sr_primitives::traits::{IdentityLookup, BlakeTwo256, ConvertInto};
+use primitives::H256;
+use support::{impl_outer_origin, impl_outer_dispatch, parameter_types};
+use {runtime_io, system};
+
+impl_outer_origin!{
+	pub enum Origin for Runtime {}
+}
+
+impl_outer_dispatch! {
+	pub enum Call for Runtime where origin: Origin {
+		imonline::ImOnline,
+	}
+}
+
+thread_local! {
+	pub static VALIDATORS: RefCell<Option<Vec<u64>>> = RefCell::new(Some(vec![1, 2, 3]));
+}
+
+pub struct TestOnSessionEnding;
+impl session::OnSessionEnding<u64> for TestOnSessionEnding {
+	fn on_session_ending(_ending_index: SessionIndex, _will_apply_at: SessionIndex)
+		-> Option<Vec<u64>>
+	{
+		VALIDATORS.with(|l| l.borrow_mut().take())
+	}
+}
+
+impl session::historical::OnSessionEnding<u64, u64> for TestOnSessionEnding {
+	fn on_session_ending(_ending_index: SessionIndex, _will_apply_at: SessionIndex)
+		-> Option<(Vec<u64>, Vec<(u64, u64)>)>
+	{
+		VALIDATORS.with(|l| l
+			.borrow_mut()
+			.take()
+			.map(|validators| {
+				let full_identification = validators.iter().map(|v| (*v, *v)).collect();
+				(validators, full_identification)
+			})
+		)
+	}
+}
+
+/// An extrinsic type used for tests.
+pub type Extrinsic = TestXt<Call, ()>;
+type SubmitTransaction = system::offchain::TransactionSubmitter<(), Call, Extrinsic>;
+type IdentificationTuple = (u64, u64);
+type Offence = crate::UnresponsivenessOffence<IdentificationTuple>;
+
+thread_local! {
+	pub static OFFENCES: RefCell<Vec<(Vec<u64>, Offence)>> = RefCell::new(vec![]);
+}
+
+/// A mock offence report handler.
+pub struct OffenceHandler;
+impl ReportOffence<u64, IdentificationTuple, Offence> for OffenceHandler {
+	fn report_offence(reporters: Vec<u64>, offence: Offence) {
+		OFFENCES.with(|l| l.borrow_mut().push((reporters, offence)));
+	}
+}
+
+pub fn new_test_ext() -> runtime_io::TestExternalities {
+	let t = system::GenesisConfig::default().build_storage::<Runtime>().unwrap();
+	t.into()
+}
+
+
+#[derive(Clone, PartialEq, Eq, Debug)]
+pub struct Runtime;
+
+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 Runtime {
+	type Origin = Origin;
+	type Index = u64;
+	type BlockNumber = u64;
+	type Call = Call;
+	type Hash = H256;
+	type Hashing = BlakeTwo256;
+	type AccountId = u64;
+	type Lookup = IdentityLookup<Self::AccountId>;
+	type Header = Header;
+	type Event = ();
+	type BlockHashCount = BlockHashCount;
+	type MaximumBlockWeight = MaximumBlockWeight;
+	type MaximumBlockLength = MaximumBlockLength;
+	type AvailableBlockRatio = AvailableBlockRatio;
+	type Version = ();
+}
+
+parameter_types! {
+	pub const Period: u64 = 1;
+	pub const Offset: u64 = 0;
+}
+
+parameter_types! {
+	pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(33);
+}
+
+impl session::Trait for Runtime {
+	type ShouldEndSession = session::PeriodicSessions<Period, Offset>;
+	type OnSessionEnding = session::historical::NoteHistoricalRoot<Runtime, TestOnSessionEnding>;
+	type SessionHandler = (ImOnline, );
+	type ValidatorId = u64;
+	type ValidatorIdOf = ConvertInto;
+	type Keys = UintAuthorityId;
+	type Event = ();
+	type SelectInitialValidators = ();
+	type DisabledValidatorsThreshold = DisabledValidatorsThreshold;
+}
+
+impl session::historical::Trait for Runtime {
+	type FullIdentification = u64;
+	type FullIdentificationOf = ConvertInto;
+}
+
+parameter_types! {
+	pub const UncleGenerations: u32 = 5;
+}
+
+impl authorship::Trait for Runtime {
+	type FindAuthor = ();
+	type UncleGenerations = UncleGenerations;
+	type FilterUncle = ();
+	type EventHandler = ImOnline;
+}
+
+impl Trait for Runtime {
+	type AuthorityId = UintAuthorityId;
+	type Event = ();
+	type Call = Call;
+	type SubmitTransaction = SubmitTransaction;
+	type ReportUnresponsiveness = OffenceHandler;
+	type SessionDuration = Period;
+}
+
+/// Im Online module.
+pub type ImOnline = Module<Runtime>;
+pub type System = system::Module<Runtime>;
+pub type Session = session::Module<Runtime>;
+
+pub fn advance_session() {
+	let now = System::block_number();
+	System::set_block_number(now + 1);
+	Session::rotate_session();
+	assert_eq!(Session::current_index(), (now / Period::get()) as u32);
+}