Fixes NPoS reward, along with tests, cleanups & docs corrections (#3595)

* Minor cleanups and tests

* Add another test

* fix

* Fix tests

* Fix tests

* Update srml/staking/src/tests.rs

Co-Authored-By: thiolliere <gui.thiolliere@gmail.com>
This commit is contained in:
Gavin Wood
2019-09-11 15:11:08 +02:00
committed by GitHub
parent ccc73da289
commit d908f32c30
6 changed files with 161 additions and 115 deletions
+19 -17
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@@ -6,45 +6,47 @@ edition = "2018"
build = "build.rs"
[dependencies]
integer-sqrt = { version = "0.1.2" }
safe-mix = { version = "1.0", default-features = false }
codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false, features = ["derive"] }
primitives = { package = "substrate-primitives", path = "../../core/primitives", default-features = false }
integer-sqrt = { version = "0.1.2" }
rustc-hex = { version = "2.0", optional = true }
safe-mix = { version = "1.0", default-features = false }
serde = { version = "1.0", optional = true }
authority-discovery-primitives = { package = "substrate-authority-discovery-primitives", path = "../../core/authority-discovery/primitives", default-features = false }
babe-primitives = { package = "substrate-consensus-babe-primitives", path = "../../core/consensus/babe/primitives", default-features = false }
client = { package = "substrate-client", path = "../../core/client", default-features = false }
node-primitives = { path = "../primitives", default-features = false }
offchain-primitives = { package = "substrate-offchain-primitives", path = "../../core/offchain/primitives", default-features = false }
primitives = { package = "substrate-primitives", path = "../../core/primitives", default-features = false }
rstd = { package = "sr-std", path = "../../core/sr-std", default-features = false }
sr-primitives = { path = "../../core/sr-primitives", default-features = false }
sr-staking-primitives = { path = "../../core/sr-staking-primitives", default-features = false }
offchain-primitives = { package = "substrate-offchain-primitives", path = "../../core/offchain/primitives", default-features = false }
authority-discovery-primitives = { package = "substrate-authority-discovery-primitives", path = "../../core/authority-discovery/primitives", default-features = false }
substrate-keyring = { path = "../../core/keyring", optional = true }
substrate-session = { path = "../../core/session", default-features = false }
version = { package = "sr-version", path = "../../core/sr-version", default-features = false }
support = { package = "srml-support", path = "../../srml/support", default-features = false }
authority-discovery = { package = "srml-authority-discovery", path = "../../srml/authority-discovery", default-features = false }
authorship = { package = "srml-authorship", path = "../../srml/authorship", default-features = false }
babe = { package = "srml-babe", path = "../../srml/babe", default-features = false }
babe-primitives = { package = "substrate-consensus-babe-primitives", path = "../../core/consensus/babe/primitives", default-features = false }
balances = { package = "srml-balances", path = "../../srml/balances", default-features = false }
contracts = { package = "srml-contracts", path = "../../srml/contracts", default-features = false }
collective = { package = "srml-collective", path = "../../srml/collective", default-features = false }
contracts = { package = "srml-contracts", path = "../../srml/contracts", default-features = false }
democracy = { package = "srml-democracy", path = "../../srml/democracy", default-features = false }
elections = { package = "srml-elections", path = "../../srml/elections", default-features = false }
executive = { package = "srml-executive", path = "../../srml/executive", default-features = false }
finality-tracker = { package = "srml-finality-tracker", path = "../../srml/finality-tracker", default-features = false }
grandpa = { package = "srml-grandpa", path = "../../srml/grandpa", default-features = false }
im-online = { package = "srml-im-online", path = "../../srml/im-online", default-features = false }
indices = { package = "srml-indices", path = "../../srml/indices", default-features = false }
membership = { package = "srml-membership", path = "../../srml/membership", default-features = false }
offences = { package = "srml-offences", path = "../../srml/offences", default-features = false }
session = { package = "srml-session", path = "../../srml/session", default-features = false, features = ["historical"] }
staking = { package = "srml-staking", path = "../../srml/staking", default-features = false }
sudo = { package = "srml-sudo", path = "../../srml/sudo", default-features = false }
support = { package = "srml-support", path = "../../srml/support", default-features = false }
system = { package = "srml-system", path = "../../srml/system", default-features = false }
timestamp = { package = "srml-timestamp", path = "../../srml/timestamp", default-features = false }
treasury = { package = "srml-treasury", path = "../../srml/treasury", default-features = false }
sudo = { package = "srml-sudo", path = "../../srml/sudo", default-features = false }
im-online = { package = "srml-im-online", path = "../../srml/im-online", default-features = false }
authority-discovery = { package = "srml-authority-discovery", path = "../../srml/authority-discovery", default-features = false }
offences = { package = "srml-offences", path = "../../srml/offences", default-features = false }
node-primitives = { path = "../primitives", default-features = false }
rustc-hex = { version = "2.0", optional = true }
serde = { version = "1.0", optional = true }
substrate-keyring = { path = "../../core/keyring", optional = true }
substrate-session = { path = "../../core/session", default-features = false }
[build-dependencies]
wasm-builder-runner = { package = "substrate-wasm-builder-runner", version = "1.0.2", path = "../../core/utils/wasm-builder-runner" }
+1 -1
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@@ -82,7 +82,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
// and set impl_version to equal spec_version. If only runtime
// implementation changes and behavior does not, then leave spec_version as
// is and increment impl_version.
spec_version: 155,
spec_version: 156,
impl_version: 156,
apis: RUNTIME_API_VERSIONS,
};
+51 -17
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@@ -97,8 +97,7 @@ struct PiecewiseLinear {
impl PiecewiseLinear {
/// Compute `f(n/d)*d`. This is useful to avoid loss of precision.
fn calculate_for_fraction_times_denominator<N>(&self, n: N, d: N) -> N
where
fn calculate_for_fraction_times_denominator<N>(&self, n: N, d: N) -> N where
N: SimpleArithmetic + Clone
{
let part = self.pieces.iter()
@@ -145,11 +144,10 @@ const I_NPOS: PiecewiseLinear = PiecewiseLinear {
]
};
/// Second per year for the Julian year (365.25 days).
const SECOND_PER_YEAR: u32 = 3600*24*36525/100;
/// The total payout to all validators (and their nominators) per era.
///
/// `era_duration` is expressed in millisecond.
///
/// Named P_NPoS in the [paper](http://research.web3.foundation/en/latest/polkadot/Token%20Ec
/// onomics/#inflation-model).
///
@@ -157,13 +155,14 @@ const SECOND_PER_YEAR: u32 = 3600*24*36525/100;
/// i.e. `P_NPoS(x) = I_NPoS(x) * current_total_token * era_duration / year_duration`
///
/// I_NPoS is the desired yearly inflation rate for nominated proof of stake.
pub fn compute_total_payout<N>(npos_token_staked: N, total_tokens: N, era_duration: N) -> N
where
pub fn compute_total_payout<N>(npos_token_staked: N, total_tokens: N, era_duration: u64) -> N where
N: SimpleArithmetic + Clone
{
let year_duration: N = SECOND_PER_YEAR.into();
I_NPOS.calculate_for_fraction_times_denominator(npos_token_staked, total_tokens)
* era_duration / year_duration
// Milliseconds per year for the Julian year (365.25 days).
const MILLISECONDS_PER_YEAR: u64 = 1000 * 3600 * 24 * 36525 / 100;
Perbill::from_rational_approximation(era_duration as u64, MILLISECONDS_PER_YEAR)
* I_NPOS.calculate_for_fraction_times_denominator(npos_token_staked, total_tokens)
}
#[allow(non_upper_case_globals, non_snake_case)] // To stick with paper notations
@@ -182,12 +181,12 @@ mod test_inflation {
fn new(x0: f64, y0: f64, x1: f64, y1: f64) -> Self {
LinearFloat {
a: (y1 - y0) / (x1 - x0),
b: (x0*y1 - x1*y0) / (x0 - x1),
b: (x0 * y1 - x1 * y0) / (x0 - x1),
}
}
fn compute(&self, x: f64) -> f64 {
self.a*x + self.b
self.a * x + self.b
}
}
@@ -204,12 +203,12 @@ mod test_inflation {
// Left part from `x_ideal`
fn I_left(x: f64) -> f64 {
I_0 + x * (i_ideal - I_0/x_ideal)
I_0 + x * (i_ideal - I_0 / x_ideal)
}
// Right part from `x_ideal`
fn I_right(x: f64) -> f64 {
I_0 + (i_ideal*x_ideal - I_0) * 2_f64.powf((x_ideal-x)/d)
I_0 + (i_ideal * x_ideal - I_0) * 2_f64.powf((x_ideal - x) / d)
}
// Definition of I_NPoS in float
@@ -221,6 +220,41 @@ mod test_inflation {
}
}
#[test]
fn npos_curve_is_sensible() {
const YEAR: u64 = 365 * 24 * 60 * 60 * 1000;
//super::I_NPOS.calculate_for_fraction_times_denominator(25, 100)
assert_eq!(super::compute_total_payout(0, 100_000u64, YEAR), 2_498);
assert_eq!(super::compute_total_payout(5_000, 100_000u64, YEAR), 3_247);
assert_eq!(super::compute_total_payout(25_000, 100_000u64, YEAR), 6_245);
assert_eq!(super::compute_total_payout(40_000, 100_000u64, YEAR), 8_494);
assert_eq!(super::compute_total_payout(50_000, 100_000u64, YEAR), 9_993);
assert_eq!(super::compute_total_payout(60_000, 100_000u64, YEAR), 4_380);
assert_eq!(super::compute_total_payout(75_000, 100_000u64, YEAR), 2_735);
assert_eq!(super::compute_total_payout(95_000, 100_000u64, YEAR), 2_518);
assert_eq!(super::compute_total_payout(100_000, 100_000u64, YEAR), 2_505);
const DAY: u64 = 24 * 60 * 60 * 1000;
assert_eq!(super::compute_total_payout(25_000, 100_000u64, DAY), 17);
assert_eq!(super::compute_total_payout(50_000, 100_000u64, DAY), 27);
assert_eq!(super::compute_total_payout(75_000, 100_000u64, DAY), 7);
const SIX_HOURS: u64 = 6 * 60 * 60 * 1000;
assert_eq!(super::compute_total_payout(25_000, 100_000u64, SIX_HOURS), 4);
assert_eq!(super::compute_total_payout(50_000, 100_000u64, SIX_HOURS), 6);
assert_eq!(super::compute_total_payout(75_000, 100_000u64, SIX_HOURS), 1);
const HOUR: u64 = 60 * 60 * 1000;
assert_eq!(
super::compute_total_payout(
2_500_000_000_000_000_000_000_000_000u128,
5_000_000_000_000_000_000_000_000_000u128,
HOUR
),
57_038_500_000_000_000_000_000
);
}
// Compute approximation of I_NPoS into piecewise linear function
fn I_NPoS_points() -> super::PiecewiseLinear {
let mut points = vec![];
@@ -265,7 +299,7 @@ mod test_inflation {
// Test error is not overflowed
// Quick test on one point
if (I_right((x0 + next_x1)/2.0) - (y0 + next_y1)/2.0).abs() > GEN_ERROR {
if (I_right((x0 + next_x1) / 2.0) - (y0 + next_y1) / 2.0).abs() > GEN_ERROR {
error_overflowed = true;
}
@@ -298,7 +332,7 @@ mod test_inflation {
let pieces: Vec<(u32, super::Linear)> = (0..points.len()-1)
.map(|i| {
let p0 = points[i];
let p1 = points[i+1];
let p1 = points[i + 1];
let linear = LinearFloat::new(p0.0, p0.1, p1.0, p1.1);
@@ -333,7 +367,7 @@ mod test_inflation {
}
/// This test ensure that i_npos piecewise linear approximation is close to the actual function.
/// It does compare the result from a computation in integer of different capcity and in f64.
/// It does compare the result from a computation in integer of different capacity and in f64.
#[test]
fn i_npos_precision() {
const STEP_PRECISION: f64 = 0.000_001;
+22 -18
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@@ -292,24 +292,27 @@ const STAKING_ID: LockIdentifier = *b"staking ";
/// Counter for the number of eras that have passed.
pub type EraIndex = u32;
/// Counter for the number of "reward" points earned by a given validator.
pub type Points = u32;
/// Reward points of an era. Used to split era total payout between validators.
#[derive(Encode, Decode, Default)]
pub struct EraRewards {
pub struct EraPoints {
/// Total number of points. Equals the sum of reward points for each validator.
total: u32,
/// Reward at one index correspond to reward for validator in current_elected of this index.
/// Thus this reward vec is only valid for one elected set.
rewards: Vec<u32>,
total: Points,
/// The reward points earned by a given validator. The index of this vec corresponds to the
/// index into the current validator set.
individual: Vec<Points>,
}
impl EraRewards {
impl EraPoints {
/// Add the reward to the validator at the given index. Index must be valid
/// (i.e. `index < current_elected.len()`).
fn add_points_to_index(&mut self, index: u32, points: u32) {
if let Some(new_total) = self.total.checked_add(points) {
self.total = new_total;
self.rewards.resize((index as usize + 1).max(self.rewards.len()), 0);
self.rewards[index as usize] += points; // Addition is less than total
self.individual.resize((index as usize + 1).max(self.individual.len()), 0);
self.individual[index as usize] += points; // Addition is less than total
}
}
}
@@ -590,7 +593,7 @@ decl_storage! {
pub CurrentEraStartSessionIndex get(current_era_start_session_index): SessionIndex;
/// Rewards for the current era. Using indices of current elected set.
CurrentEraRewards get(current_era_reward): EraRewards;
CurrentEraPointsEarned get(current_era_reward): EraPoints;
/// The amount of balance actively at stake for each validator slot, currently.
///
@@ -1161,7 +1164,7 @@ impl<T: Trait> Module<T> {
/// get a chance to set their session keys.
fn new_era(start_session_index: SessionIndex) -> Option<Vec<T::AccountId>> {
// Payout
let rewards = CurrentEraRewards::take();
let points = CurrentEraPointsEarned::take();
let now = T::Time::now();
let previous_era_start = <CurrentEraStart<T>>::mutate(|v| {
rstd::mem::replace(v, now)
@@ -1176,21 +1179,22 @@ impl<T: Trait> Module<T> {
let total_payout = inflation::compute_total_payout(
total_rewarded_stake.clone(),
T::Currency::total_issuance(),
// Era of duration more than u32::MAX is rewarded as u32::MAX.
<BalanceOf<T>>::from(era_duration.saturated_into::<u32>()),
// Duration of era; more than u64::MAX is rewarded as u64::MAX.
era_duration.saturated_into::<u64>(),
);
let mut total_imbalance = <PositiveImbalanceOf<T>>::zero();
let total_points = rewards.total;
for (v, points) in validators.iter().zip(rewards.rewards.into_iter()) {
if points != 0 {
let reward = multiply_by_rational(total_payout, points, total_points);
for (v, p) in validators.iter().zip(points.individual.into_iter()) {
if p != 0 {
let reward = multiply_by_rational(total_payout, p, points.total);
total_imbalance.subsume(Self::reward_validator(v, reward));
}
}
let total_reward = total_imbalance.peek();
// assert!(total_reward <= total_payout)
Self::deposit_event(RawEvent::Reward(total_reward));
T::Reward::on_unbalanced(total_imbalance);
T::OnRewardMinted::on_dilution(total_reward, total_rewarded_stake);
@@ -1376,7 +1380,7 @@ impl<T: Trait> Module<T> {
/// COMPLEXITY: Complexity is `number_of_validator_to_reward x current_elected_len`.
/// If you need to reward lots of validator consider using `reward_by_indices`.
pub fn reward_by_ids(validators_points: impl IntoIterator<Item = (T::AccountId, u32)>) {
CurrentEraRewards::mutate(|rewards| {
CurrentEraPointsEarned::mutate(|rewards| {
let current_elected = <Module<T>>::current_elected();
for (validator, points) in validators_points.into_iter() {
if let Some(index) = current_elected.iter()
@@ -1396,7 +1400,7 @@ impl<T: Trait> Module<T> {
// TODO: This can be optimised once #3302 is implemented.
let current_elected_len = <Module<T>>::current_elected().len() as u32;
CurrentEraRewards::mutate(|rewards| {
CurrentEraPointsEarned::mutate(|rewards| {
for (validator_index, points) in validators_points.into_iter() {
if validator_index < current_elected_len {
rewards.add_points_to_index(validator_index, points);
+6 -6
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@@ -391,16 +391,16 @@ pub fn assert_is_stash(acc: u64) {
pub fn bond_validator(acc: u64, val: u64) {
// a = controller
// a + 1 = stash
let _ = Balances::make_free_balance_be(&(acc+1), val);
assert_ok!(Staking::bond(Origin::signed(acc+1), acc, val, RewardDestination::Controller));
let _ = Balances::make_free_balance_be(&(acc + 1), val);
assert_ok!(Staking::bond(Origin::signed(acc + 1), acc, val, RewardDestination::Controller));
assert_ok!(Staking::validate(Origin::signed(acc), ValidatorPrefs::default()));
}
pub fn bond_nominator(acc: u64, val: u64, target: Vec<u64>) {
// a = controller
// a + 1 = stash
let _ = Balances::make_free_balance_be(&(acc+1), val);
assert_ok!(Staking::bond(Origin::signed(acc+1), acc, val, RewardDestination::Controller));
let _ = Balances::make_free_balance_be(&(acc + 1), val);
assert_ok!(Staking::bond(Origin::signed(acc + 1), acc, val, RewardDestination::Controller));
assert_ok!(Staking::nominate(Origin::signed(acc), target));
}
@@ -414,7 +414,7 @@ pub fn start_session(session_index: SessionIndex) {
let session_index = session_index + 1;
for i in Session::current_index()..session_index {
System::set_block_number((i + 1).into());
Timestamp::set_timestamp(System::block_number());
Timestamp::set_timestamp(System::block_number() * 1000);
Session::on_initialize(System::block_number());
}
@@ -428,7 +428,7 @@ pub fn start_era(era_index: EraIndex) {
pub fn current_total_payout_for_duration(duration: u64) -> u64 {
let res = inflation::compute_total_payout(
<Module<Test>>::slot_stake()*2,
<Module<Test>>::slot_stake() * 2,
Balances::total_issuance(),
duration,
);
+62 -56
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@@ -132,7 +132,7 @@ fn rewards_should_work() {
// Init some balances
let _ = Balances::make_free_balance_be(&2, 500);
let delay = 1;
let delay = 1000;
let init_balance_2 = Balances::total_balance(&2);
let init_balance_10 = Balances::total_balance(&10);
let init_balance_11 = Balances::total_balance(&11);
@@ -160,7 +160,7 @@ fn rewards_should_work() {
let mut block = 3; // Block 3 => Session 1 => Era 0
System::set_block_number(block);
Timestamp::set_timestamp(block*5); // on time.
Timestamp::set_timestamp(block * 5000); // on time.
Session::on_initialize(System::block_number());
assert_eq!(Staking::current_era(), 0);
assert_eq!(Session::current_index(), 1);
@@ -172,7 +172,7 @@ fn rewards_should_work() {
<Module<Test>>::reward_by_ids(vec![(1001, 10_000)]);
// Compute total payout now for whole duration as other parameter won't change
let total_payout = current_total_payout_for_duration(9 * 5);
let total_payout = current_total_payout_for_duration(9 * 5 * 1000);
assert!(total_payout > 10); // Test is meaningful if reward something
// No reward yet
@@ -182,21 +182,21 @@ fn rewards_should_work() {
block = 6; // Block 6 => Session 2 => Era 0
System::set_block_number(block);
Timestamp::set_timestamp(block*5 + delay); // a little late.
Timestamp::set_timestamp(block * 5000 + delay); // a little late.
Session::on_initialize(System::block_number());
assert_eq!(Staking::current_era(), 0);
assert_eq!(Session::current_index(), 2);
block = 9; // Block 9 => Session 3 => Era 1
System::set_block_number(block);
Timestamp::set_timestamp(block*5); // back to being on time. no delays
Timestamp::set_timestamp(block * 5000); // back to being on time. no delays
Session::on_initialize(System::block_number());
assert_eq!(Staking::current_era(), 1);
assert_eq!(Session::current_index(), 3);
// 11 validator has 2/3 of the total rewards and half half for it and its nominator
assert_eq!(Balances::total_balance(&2), init_balance_2 + total_payout/3);
assert_eq!(Balances::total_balance(&10), init_balance_10 + total_payout/3);
// 11 validator has 2 / 3 of the total rewards and half half for it and its nominator
assert_eq!(Balances::total_balance(&2), init_balance_2 + total_payout / 3);
assert_eq!(Balances::total_balance(&10), init_balance_10 + total_payout / 3);
assert_eq!(Balances::total_balance(&11), init_balance_11);
});
}
@@ -216,7 +216,7 @@ fn multi_era_reward_should_work() {
assert_ok!(Staking::set_payee(Origin::signed(10), RewardDestination::Controller));
// Compute now as other parameter won't change
let total_payout_0 = current_total_payout_for_duration(3);
let total_payout_0 = current_total_payout_for_duration(3000);
assert!(total_payout_0 > 10); // Test is meaningfull if reward something
dbg!(<Module<Test>>::slot_stake());
<Module<Test>>::reward_by_ids(vec![(11, 1)]);
@@ -231,7 +231,7 @@ fn multi_era_reward_should_work() {
start_session(4);
let total_payout_1 = current_total_payout_for_duration(3);
let total_payout_1 = current_total_payout_for_duration(3000);
assert!(total_payout_1 > 10); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(11, 101)]);
@@ -436,7 +436,7 @@ fn nominating_and_rewards_should_work() {
assert_ok!(Staking::nominate(Origin::signed(4), vec![11, 21, 41]));
// the total reward for era 0
let total_payout_0 = current_total_payout_for_duration(3);
let total_payout_0 = current_total_payout_for_duration(3000);
assert!(total_payout_0 > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(41, 1)]);
<Module<Test>>::reward_by_ids(vec![(31, 1)]);
@@ -449,8 +449,8 @@ fn nominating_and_rewards_should_work() {
assert_eq_uvec!(validator_controllers(), vec![20, 10]);
// OLD validators must have already received some rewards.
assert_eq!(Balances::total_balance(&40), 1 + total_payout_0/2);
assert_eq!(Balances::total_balance(&30), 1 + total_payout_0/2);
assert_eq!(Balances::total_balance(&40), 1 + total_payout_0 / 2);
assert_eq!(Balances::total_balance(&30), 1 + total_payout_0 / 2);
// ------ check the staked value of all parties.
@@ -511,7 +511,7 @@ fn nominating_and_rewards_should_work() {
assert_eq!(Staking::stakers(41).total, 0);
// the total reward for era 1
let total_payout_1 = current_total_payout_for_duration(3);
let total_payout_1 = current_total_payout_for_duration(3000);
assert!(total_payout_1 > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(41, 10)]); // must be no-op
<Module<Test>>::reward_by_ids(vec![(31, 10)]); // must be no-op
@@ -523,28 +523,34 @@ fn nominating_and_rewards_should_work() {
// nothing else will happen, era ends and rewards are paid again,
// it is expected that nominators will also be paid. See below
let payout_for_10 = total_payout_1/3;
let payout_for_20 = 2*total_payout_1/3;
let payout_for_10 = total_payout_1 / 3;
let payout_for_20 = 2 * total_payout_1 / 3;
if cfg!(feature = "equalize") {
// Nominator 2: has [400/2000 ~ 1/5 from 10] + [600/2000 ~ 3/10 from 20]'s reward.
assert_eq!(Balances::total_balance(&2), initial_balance + payout_for_10/5 + payout_for_20*3/10 - 1);
// Nominator 4: has [400/2000 ~ 1/5 from 20] + [600/2000 ~ 3/10 from 10]'s reward.
assert_eq!(Balances::total_balance(&4), initial_balance + payout_for_20/5 + payout_for_10*3/10);
// Nominator 2: has [400 / 2000 ~ 1 / 5 from 10] + [600 / 2000 ~ 3 / 10 from 20]'s reward.
assert_eq!(Balances::total_balance(&2), initial_balance + payout_for_10 / 5 + payout_for_20 * 3 / 10);
// Nominator 4: has [400 / 2000 ~ 1 / 5 from 20] + [600 / 2000 ~ 3 / 10 from 10]'s reward.
assert_eq!(Balances::total_balance(&4), initial_balance + payout_for_20 / 5 + payout_for_10 * 3 / 10);
// Validator 10: got 1000 / 2000 external stake.
assert_eq!(Balances::total_balance(&10), initial_balance + payout_for_10/2);
assert_eq!(Balances::total_balance(&10), initial_balance + payout_for_10 / 2);
// Validator 20: got 1000 / 2000 external stake.
assert_eq!(Balances::total_balance(&20), initial_balance + payout_for_20/2);
assert_eq!(Balances::total_balance(&20), initial_balance + payout_for_20 / 2);
} else {
// Nominator 2: has [400/1800 ~ 2/9 from 10] + [600/2200 ~ 3/11 from 20]'s reward. ==> 2/9 + 3/11
assert_eq!(Balances::total_balance(&2), initial_balance + (2*payout_for_10/9 + 3*payout_for_20/11) - 2);
// Nominator 4: has [400/1800 ~ 2/9 from 10] + [600/2200 ~ 3/11 from 20]'s reward. ==> 2/9 + 3/11
assert_eq!(Balances::total_balance(&4), initial_balance + (2*payout_for_10/9 + 3*payout_for_20/11) - 2);
// Nominator 2: has [400 / 1800 ~ 2 / 9 from 10] + [600 / 2200 ~ 3 / 11 from 20]'s reward. ==> 2 / 9 + 3 / 11
assert_eq!(
Balances::total_balance(&2),
initial_balance + (2 * payout_for_10 / 9 + 3 * payout_for_20 / 11) - 2
);
// Nominator 4: has [400 / 1800 ~ 2 / 9 from 10] + [600 / 2200 ~ 3 / 11 from 20]'s reward. ==> 2 / 9 + 3 / 11
assert_eq!(
Balances::total_balance(&4),
initial_balance + (2 * payout_for_10 / 9 + 3 * payout_for_20 / 11) - 2
);
// Validator 10: got 800 / 1800 external stake => 8/18 =? 4/9 => Validator's share = 5/9
assert_eq!(Balances::total_balance(&10), initial_balance + 5*payout_for_10/9 - 1);
// Validator 20: got 1200 / 2200 external stake => 12/22 =? 6/11 => Validator's share = 5/11
assert_eq!(Balances::total_balance(&20), initial_balance + 5*payout_for_20/11);
// Validator 10: got 800 / 1800 external stake => 8 / 18 =? 4 / 9 => Validator's share = 5 / 9
assert_eq!(Balances::total_balance(&10), initial_balance + 5*payout_for_10 / 9 - 1);
// Validator 20: got 1200 / 2200 external stake => 12 / 22 =? 6 / 11 => Validator's share = 5 / 11
assert_eq!(Balances::total_balance(&20), initial_balance + 5*payout_for_20 / 11 + 1);
}
check_exposure_all();
@@ -576,7 +582,7 @@ fn nominators_also_get_slashed() {
assert_ok!(Staking::bond(Origin::signed(1), 2, nominator_stake, RewardDestination::default()));
assert_ok!(Staking::nominate(Origin::signed(2), vec![20, 10]));
let total_payout = current_total_payout_for_duration(3);
let total_payout = current_total_payout_for_duration(3000);
assert!(total_payout > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(11, 1)]);
@@ -824,7 +830,7 @@ fn reward_destination_works() {
}));
// Compute total payout now for whole duration as other parameter won't change
let total_payout_0 = current_total_payout_for_duration(3);
let total_payout_0 = current_total_payout_for_duration(3000);
assert!(total_payout_0 > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(11, 1)]);
@@ -846,7 +852,7 @@ fn reward_destination_works() {
<Payee<Test>>::insert(&11, RewardDestination::Stash);
// Compute total payout now for whole duration as other parameter won't change
let total_payout_1 = current_total_payout_for_duration(3);
let total_payout_1 = current_total_payout_for_duration(3000);
assert!(total_payout_1 > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(11, 1)]);
@@ -873,7 +879,7 @@ fn reward_destination_works() {
assert_eq!(Balances::free_balance(&10), 1);
// Compute total payout now for whole duration as other parameter won't change
let total_payout_2 = current_total_payout_for_duration(3);
let total_payout_2 = current_total_payout_for_duration(3000);
assert!(total_payout_2 > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(11, 1)]);
@@ -926,7 +932,7 @@ fn validator_payment_prefs_work() {
});
// Compute total payout now for whole duration as other parameter won't change
let total_payout_0 = current_total_payout_for_duration(3);
let total_payout_0 = current_total_payout_for_duration(3000);
assert!(total_payout_0 > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(11, 1)]);
@@ -935,11 +941,11 @@ fn validator_payment_prefs_work() {
// whats left to be shared is the sum of 3 rounds minus the validator's cut.
let shared_cut = total_payout_0 - validator_cut;
// Validator's payee is Staked account, 11, reward will be paid here.
assert_eq!(Balances::total_balance(&11), stash_initial_balance + shared_cut/2 + validator_cut);
assert_eq!(Balances::total_balance(&11), stash_initial_balance + shared_cut / 2 + validator_cut);
// Controller account will not get any reward.
assert_eq!(Balances::total_balance(&10), 1);
// Rest of the reward will be shared and paid to the nominator in stake.
assert_eq!(Balances::total_balance(&2), 500 + shared_cut/2);
assert_eq!(Balances::total_balance(&2), 500 + shared_cut / 2);
check_exposure_all();
check_nominator_all();
@@ -1140,7 +1146,7 @@ fn slot_stake_is_least_staked_validator_and_exposure_defines_maximum_punishment(
<Ledger<Test>>::insert(&20, StakingLedger { stash: 22, total: 69, active: 69, unlocking: vec![] });
// Compute total payout now for whole duration as other parameter won't change
let total_payout_0 = current_total_payout_for_duration(3);
let total_payout_0 = current_total_payout_for_duration(3000);
assert!(total_payout_0 > 100); // Test is meaningfull if reward something
<Module<Test>>::reward_by_ids(vec![(11, 1)]);
<Module<Test>>::reward_by_ids(vec![(21, 1)]);
@@ -1149,14 +1155,14 @@ fn slot_stake_is_least_staked_validator_and_exposure_defines_maximum_punishment(
start_era(1);
// -- new balances + reward
assert_eq!(Staking::stakers(&11).total, 1000 + total_payout_0/2);
assert_eq!(Staking::stakers(&21).total, 69 + total_payout_0/2);
assert_eq!(Staking::stakers(&11).total, 1000 + total_payout_0 / 2);
assert_eq!(Staking::stakers(&21).total, 69 + total_payout_0 / 2);
let _11_balance = Balances::free_balance(&11);
assert_eq!(_11_balance, 1000 + total_payout_0/2);
assert_eq!(_11_balance, 1000 + total_payout_0 / 2);
// -- slot stake should also be updated.
assert_eq!(Staking::slot_stake(), 69 + total_payout_0/2);
assert_eq!(Staking::slot_stake(), 69 + total_payout_0 / 2);
check_exposure_all();
check_nominator_all();
@@ -1621,7 +1627,7 @@ fn bond_with_little_staked_value_bounded_by_slot_stake() {
assert_ok!(Staking::bond(Origin::signed(1), 2, 1, RewardDestination::Controller));
assert_ok!(Staking::validate(Origin::signed(2), ValidatorPrefs::default()));
let total_payout_0 = current_total_payout_for_duration(3);
let total_payout_0 = current_total_payout_for_duration(3000);
assert!(total_payout_0 > 100); // Test is meaningfull if reward something
reward_all_elected();
start_era(1);
@@ -1632,11 +1638,11 @@ fn bond_with_little_staked_value_bounded_by_slot_stake() {
assert_eq!(Staking::slot_stake(), 1);
// Old ones are rewarded.
assert_eq!(Balances::free_balance(&10), init_balance_10 + total_payout_0/3);
assert_eq!(Balances::free_balance(&10), init_balance_10 + total_payout_0 / 3);
// no rewards paid to 2. This was initial election.
assert_eq!(Balances::free_balance(&2), init_balance_2);
let total_payout_1 = current_total_payout_for_duration(3);
let total_payout_1 = current_total_payout_for_duration(3000);
assert!(total_payout_1 > 100); // Test is meaningfull if reward something
reward_all_elected();
start_era(2);
@@ -1644,8 +1650,8 @@ fn bond_with_little_staked_value_bounded_by_slot_stake() {
assert_eq_uvec!(validator_controllers(), vec![20, 10, 2]);
assert_eq!(Staking::slot_stake(), 1);
assert_eq!(Balances::free_balance(&2), init_balance_2 + total_payout_1/3);
assert_eq!(Balances::free_balance(&10), init_balance_10 + total_payout_0/3 + total_payout_1/3);
assert_eq!(Balances::free_balance(&2), init_balance_2 + total_payout_1 / 3);
assert_eq!(Balances::free_balance(&10), init_balance_10 + total_payout_0 / 3 + total_payout_1 / 3);
check_exposure_all();
check_nominator_all();
});
@@ -1750,8 +1756,8 @@ fn phragmen_should_not_overflow_validators() {
bond_validator(2, u64::max_value());
bond_validator(4, u64::max_value());
bond_nominator(6, u64::max_value()/2, vec![3, 5]);
bond_nominator(8, u64::max_value()/2, vec![3, 5]);
bond_nominator(6, u64::max_value() / 2, vec![3, 5]);
bond_nominator(8, u64::max_value() / 2, vec![3, 5]);
start_era(1);
@@ -1773,8 +1779,8 @@ fn phragmen_should_not_overflow_nominators() {
let _ = Staking::chill(Origin::signed(10));
let _ = Staking::chill(Origin::signed(20));
bond_validator(2, u64::max_value()/2);
bond_validator(4, u64::max_value()/2);
bond_validator(2, u64::max_value() / 2);
bond_validator(4, u64::max_value() / 2);
bond_nominator(6, u64::max_value(), vec![3, 5]);
bond_nominator(8, u64::max_value(), vec![3, 5]);
@@ -1943,9 +1949,9 @@ fn reward_from_authorship_event_handler_works() {
assert_eq!(<CurrentElected<Test>>::get(), vec![21, 11]);
// 21 is rewarded as an uncle producer
// 11 is rewarded as a block procuder and uncle referencer and uncle producer
assert_eq!(CurrentEraRewards::get().rewards, vec![1, 20+2*3 + 1]);
assert_eq!(CurrentEraRewards::get().total, 28);
// 11 is rewarded as a block producer and uncle referencer and uncle producer
assert_eq!(CurrentEraPointsEarned::get().individual, vec![1, 20 + 2 * 3 + 1]);
assert_eq!(CurrentEraPointsEarned::get().total, 28);
})
}
@@ -1972,8 +1978,8 @@ fn add_reward_points_fns_works() {
(11, 1),
]);
assert_eq!(CurrentEraRewards::get().rewards, vec![2, 4]);
assert_eq!(CurrentEraRewards::get().total, 6);
assert_eq!(CurrentEraPointsEarned::get().individual, vec![2, 4]);
assert_eq!(CurrentEraPointsEarned::get().total, 6);
})
}