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Reduce emissions by 10% every year (#108)

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* deprecate top balance

* stub dynamic emissions impl

* impl 90% curve

* scaffold emissions rate function

* emissions curve

* implement new supply curve

* remove comments

* update comment

* bump version

* test reset

* add tests for emissions reduction

* test

* fix test

* bump version
This commit is contained in:
Hardhat Chad
2025-03-23 13:46:15 -05:00
committed by GitHub
parent 68159ca443
commit b54c542925
7 changed files with 454 additions and 93 deletions
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6
Cargo.lock generated
View File

@@ -1266,7 +1266,7 @@ dependencies = [
[[package]]
name = "ore-api"
version = "3.3.0"
version = "3.4.0"
dependencies = [
"array-const-fn-init",
"bytemuck",
@@ -1323,11 +1323,11 @@ dependencies = [
[[package]]
name = "ore-program"
version = "3.3.0"
version = "3.4.0"
dependencies = [
"drillx",
"mpl-token-metadata",
"ore-api 3.3.0",
"ore-api 3.4.0",
"ore-boost-api 3.0.0",
"rand 0.8.5",
"solana-program",

2
Cargo.toml
View File

@@ -3,7 +3,7 @@ resolver = "2"
members = ["api", "program"]
[workspace.package]
version = "3.3.0"
version = "3.4.0"
edition = "2021"
license = "Apache-2.0"
homepage = "https://ore.supply"

15
api/src/consts.rs
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@@ -42,16 +42,6 @@ pub const EPOCH_DURATION: i64 = ONE_MINUTE * EPOCH_MINUTES;
/// The maximum token supply (5 million).
pub const MAX_SUPPLY: u64 = ONE_ORE * 5_000_000;
/// The target quantity of ORE to be mined per epoch.
pub const TARGET_EPOCH_REWARDS: u64 = ONE_ORE * EPOCH_MINUTES as u64;
/// The maximum quantity of ORE that can be mined per epoch.
/// Inflation target ≈ 1 ORE / min
pub const MAX_EPOCH_REWARDS: u64 = TARGET_EPOCH_REWARDS * BUS_COUNT as u64;
/// The quantity of ORE each bus is allowed to issue per epoch.
pub const BUS_EPOCH_REWARDS: u64 = MAX_EPOCH_REWARDS / BUS_COUNT as u64;
/// The number of bus accounts, for parallelizing mine operations.
pub const BUS_COUNT: usize = 8;
@@ -59,11 +49,6 @@ pub const BUS_COUNT: usize = 8;
/// than a factor of this constant from one epoch to the next.
pub const SMOOTHING_FACTOR: u64 = 2;
// Assert MAX_EPOCH_REWARDS is evenly divisible by BUS_COUNT.
static_assertions::const_assert!(
(MAX_EPOCH_REWARDS / BUS_COUNT as u64) * BUS_COUNT as u64 == MAX_EPOCH_REWARDS
);
/// The seed of the bus account PDA.
pub const BUS: &[u8] = b"bus";

1
api/src/state/bus.rs
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@@ -18,6 +18,7 @@ pub struct Bus {
pub theoretical_rewards: u64,
/// The largest known stake balance seen by the bus this epoch.
#[deprecated(since = "2.8.0", note = "Top balance is no longer tracked or used")]
pub top_balance: u64,
}

4
api/src/state/config.rs
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@@ -15,8 +15,8 @@ pub struct Config {
/// The minimum accepted difficulty.
pub min_difficulty: u64,
/// Buffer for possible future use.
pub _buffer: [u8; 8],
/// The target emissions rate in ORE/min.
pub target_emmissions_rate: u64,
}
account!(OreAccount, Config);

1
program/src/initialize.rs
View File

@@ -88,7 +88,6 @@ pub fn process_initialize(accounts: &[AccountInfo<'_>], _data: &[u8]) -> Program
bus.id = i as u64;
bus.rewards = 0;
bus.theoretical_rewards = 0;
bus.top_balance = 0;
}
// Initialize config.

518
program/src/reset.rs
View File

@@ -1,7 +1,7 @@
use ore_api::prelude::*;
use steel::*;
/// Reset tops up the bus balances, updates the base reward rate, and sets up the ORE program for the next epoch.
/// Reset tops up the bus balances and updates the emissions and reward rates.
pub fn process_reset(accounts: &[AccountInfo<'_>], _data: &[u8]) -> ProgramResult {
// Load accounts.
let [signer_info, bus_0_info, bus_1_info, bus_2_info, bus_3_info, bus_4_info, bus_5_info, bus_6_info, bus_7_info, config_info, mint_info, treasury_info, treasury_tokens_info, token_program] =
@@ -55,69 +55,94 @@ pub fn process_reset(accounts: &[AccountInfo<'_>], _data: &[u8]) -> ProgramResul
return Ok(());
}
// Update timestamp.
config.last_reset_at = clock.unix_timestamp;
// Reset bus accounts and calculate actual rewards mined since last reset.
// Process epoch.
let busses = [bus_0, bus_1, bus_2, bus_3, bus_4, bus_5, bus_6, bus_7];
let mut total_remaining_rewards = 0u64;
let mut total_theoretical_rewards = 0u64;
let mut top_balance = 0u64;
for bus in busses {
// Track top balance.
if bus.top_balance.gt(&top_balance) {
top_balance = bus.top_balance;
}
// Track accumulators.
total_remaining_rewards = total_remaining_rewards.saturating_add(bus.rewards);
total_theoretical_rewards =
total_theoretical_rewards.saturating_add(bus.theoretical_rewards);
// Reset bus account for new epoch.
bus.rewards = BUS_EPOCH_REWARDS;
bus.theoretical_rewards = 0;
bus.top_balance = 0;
}
let total_epoch_rewards = MAX_EPOCH_REWARDS.saturating_sub(total_remaining_rewards);
// Update base reward rate for next epoch.
config.base_reward_rate =
calculate_new_reward_rate(config.base_reward_rate, total_theoretical_rewards);
// If base reward rate is too low, increment min difficulty by 1 and double base reward rate.
if config.base_reward_rate.le(&BASE_REWARD_RATE_MIN_THRESHOLD) {
config.min_difficulty = config.min_difficulty.checked_add(1).unwrap();
config.base_reward_rate = config.base_reward_rate.checked_mul(2).unwrap();
}
// If base reward rate is too high, decrement min difficulty by 1 and halve base reward rate.
if config.base_reward_rate.ge(&BASE_REWARD_RATE_MAX_THRESHOLD) && config.min_difficulty.gt(&1) {
config.min_difficulty = config.min_difficulty.checked_sub(1).unwrap();
config.base_reward_rate = config.base_reward_rate.checked_div(2).unwrap();
}
// Max supply check.
if mint.supply().ge(&MAX_SUPPLY) {
return Err(OreError::MaxSupply.into());
}
let amount_to_mint = config.process_epoch(busses, &clock, &mint)?;
// Fund the treasury token account.
let amount = MAX_SUPPLY
.saturating_sub(mint.supply())
.min(total_epoch_rewards);
mint_to_signed(
mint_info,
treasury_tokens_info,
treasury_info,
token_program,
amount,
amount_to_mint,
&[TREASURY],
)?;
Ok(())
}
trait EpochProcessor {
fn process_epoch(
&mut self,
busses: [&mut Bus; 8],
clock: &Clock,
mint: &Mint,
) -> Result<u64, ProgramError>;
}
impl EpochProcessor for Config {
fn process_epoch(
&mut self,
busses: [&mut Bus; 8],
clock: &Clock,
mint: &Mint,
) -> Result<u64, ProgramError> {
// Max supply check.
if mint.supply() >= MAX_SUPPLY {
return Err(OreError::MaxSupply.into());
}
// Update timestamp.
self.last_reset_at = clock.unix_timestamp;
// Adjust emissions curve based on current supply.
self.target_emmissions_rate = get_target_emissions_rate(mint.supply());
// Calculate target rewards to distribute in coming epoch (emissions rate multiplied by epoch duration).
let target_epoch_rewards = self.target_emmissions_rate * EPOCH_MINUTES as u64;
// Reset bus counters and calculate theoretical rewards mined in the last epoch.
let mut amount_to_mint = 0u64;
let mut remaining_supply = MAX_SUPPLY.saturating_sub(mint.supply());
let mut theoretical_epoch_rewards = 0u64;
for bus in busses {
// Reset theoretical rewards.
theoretical_epoch_rewards += bus.theoretical_rewards;
bus.theoretical_rewards = 0;
// Reset bus rewards.
let topup_amount = target_epoch_rewards
.saturating_sub(bus.rewards)
.min(remaining_supply);
remaining_supply -= topup_amount;
amount_to_mint += topup_amount;
bus.rewards += topup_amount;
}
// Update base reward rate for next epoch.
self.base_reward_rate = calculate_new_reward_rate(
self.base_reward_rate,
theoretical_epoch_rewards,
target_epoch_rewards,
);
// If base reward rate is too low, increment min difficulty by 1 and double base reward rate.
if self.base_reward_rate < BASE_REWARD_RATE_MIN_THRESHOLD {
self.min_difficulty += 1;
self.base_reward_rate *= 2;
}
// If base reward rate is too high, decrement min difficulty by 1 and halve base reward rate.
if self.base_reward_rate >= BASE_REWARD_RATE_MAX_THRESHOLD && self.min_difficulty > 1 {
self.min_difficulty -= 1;
self.base_reward_rate /= 2;
}
Ok(amount_to_mint)
}
}
/// This function calculates what the new reward rate should be based on how many total rewards
/// were mined in the prior epoch. The math is largely identitical to function used by the Bitcoin
/// network to update the difficulty between each epoch.
@@ -127,7 +152,11 @@ pub fn process_reset(accounts: &[AccountInfo<'_>], _data: &[u8]) -> ProgramResul
/// The new rate is then smoothed by a constant factor to avoid large fluctuations. In Ore's case,
/// the epochs are short (60 seconds) so a smoothing factor of 2 has been chosen. That is, the reward rate
/// can at most double or halve from one epoch to the next.
pub(crate) fn calculate_new_reward_rate(current_rate: u64, epoch_rewards: u64) -> u64 {
pub(crate) fn calculate_new_reward_rate(
current_rate: u64,
epoch_rewards: u64,
target_epoch_rewards: u64,
) -> u64 {
// Avoid division by zero. Leave the reward rate unchanged, if detected.
if epoch_rewards.eq(&0) {
return current_rate;
@@ -135,7 +164,7 @@ pub(crate) fn calculate_new_reward_rate(current_rate: u64, epoch_rewards: u64) -
// Calculate new reward rate.
let new_rate = (current_rate as u128)
.saturating_mul(TARGET_EPOCH_REWARDS as u128)
.saturating_mul(target_epoch_rewards as u128)
.saturating_div(epoch_rewards as u128) as u64;
// Smooth reward rate so it cannot change by more than a constant factor from one epoch to the next.
@@ -144,32 +173,77 @@ pub(crate) fn calculate_new_reward_rate(current_rate: u64, epoch_rewards: u64) -
let new_rate_smoothed = new_rate.min(new_rate_max).max(new_rate_min);
// Prevent reward rate from dropping below 1 or exceeding BUS_EPOCH_REWARDS and return.
new_rate_smoothed.max(1).min(BUS_EPOCH_REWARDS)
new_rate_smoothed.max(1).min(target_epoch_rewards)
}
/// This function calculates the target emissions rate (ORE / min) based on the current supply.
/// It is designed to reduce emissions by 10% approximately every 12 months with a hardcap at 5 million ORE.
pub(crate) fn get_target_emissions_rate(current_supply: u64) -> u64 {
match current_supply {
n if n < ONE_ORE * 525_600 => 100_000_000_000, // Year ~1
n if n < ONE_ORE * 998_640 => 90_000_000_000, // Year ~2
n if n < ONE_ORE * 1_424_376 => 81_000_000_000, // Year ~3
n if n < ONE_ORE * 1_807_538 => 72_900_000_000, // Year ~4
n if n < ONE_ORE * 2_152_384 => 65_610_000_000, // Year ~5
n if n < ONE_ORE * 2_462_746 => 59_049_000_000, // Year ~6
n if n < ONE_ORE * 2_742_071 => 53_144_100_000, // Year ~7
n if n < ONE_ORE * 2_993_464 => 47_829_690_000, // Year ~8
n if n < ONE_ORE * 3_219_717 => 43_046_721_000, // Year ~9
n if n < ONE_ORE * 3_423_346 => 38_742_048_900, // Year ~10
n if n < ONE_ORE * 3_606_611 => 34_867_844_010, // Year ~11
n if n < ONE_ORE * 3_771_550 => 31_381_059_609, // Year ~12
n if n < ONE_ORE * 3_919_995 => 28_242_953_648, // Year ~13
n if n < ONE_ORE * 4_053_595 => 25_418_658_283, // Year ~14
n if n < ONE_ORE * 4_173_836 => 22_876_792_454, // Year ~15
n if n < ONE_ORE * 4_282_052 => 20_589_113_208, // Year ~16
n if n < ONE_ORE * 4_379_447 => 18_530_201_887, // Year ~17
n if n < ONE_ORE * 4_467_102 => 16_677_181_698, // Year ~18
n if n < ONE_ORE * 4_545_992 => 15_009_463_528, // Year ~19
n if n < ONE_ORE * 4_616_993 => 13_508_517_175, // Year ~20
n if n < ONE_ORE * 4_680_893 => 12_157_665_457, // Year ~21
n if n < ONE_ORE * 4_738_404 => 10_941_898_911, // Year ~22
n if n < ONE_ORE * 4_790_164 => 9_847_709_019, // Year ~23
n if n < ONE_ORE * 4_836_747 => 8_862_938_117, // Year ~24
n if n < ONE_ORE * 4_878_672 => 7_976_644_305, // Year ~25
n if n < ONE_ORE * 4_916_405 => 7_178_979_874, // Year ~26
n if n < ONE_ORE * 4_950_365 => 6_461_081_886, // Year ~27
n if n < ONE_ORE * 4_980_928 => 5_814_973_607, // Year ~28
n if n < ONE_ORE * 5_000_000 => 5_233_476_327, // Year ~29
_ => 0,
}
}
#[cfg(test)]
mod tests {
use rand::{distributions::Uniform, Rng};
use solana_program::program_option::COption;
use steel::{Clock, Mint};
use crate::calculate_new_reward_rate;
use ore_api::consts::{
BASE_REWARD_RATE_MIN_THRESHOLD, BUS_EPOCH_REWARDS, MAX_EPOCH_REWARDS, SMOOTHING_FACTOR,
TARGET_EPOCH_REWARDS,
use crate::{calculate_new_reward_rate, reset::EpochProcessor};
use ore_api::{
consts::{
BASE_REWARD_RATE_MIN_THRESHOLD, BUS_COUNT, EPOCH_MINUTES, ONE_ORE, SMOOTHING_FACTOR,
TOKEN_DECIMALS,
},
state::{Bus, Config},
};
const FUZZ_SIZE: u64 = 10_000;
const TARGET_EPOCH_REWARDS: u64 = ONE_ORE * EPOCH_MINUTES as u64;
const MAX_EPOCH_REWARDS: u64 = TARGET_EPOCH_REWARDS * BUS_COUNT as u64;
#[test]
fn test_calculate_new_reward_rate_target() {
let current_rate = 1000;
let new_rate = calculate_new_reward_rate(current_rate, TARGET_EPOCH_REWARDS);
let new_rate =
calculate_new_reward_rate(current_rate, TARGET_EPOCH_REWARDS, TARGET_EPOCH_REWARDS);
assert!(new_rate.eq(&current_rate));
}
#[test]
fn test_calculate_new_reward_rate_div_by_zero() {
let current_rate = 1000;
let new_rate = calculate_new_reward_rate(current_rate, 0);
let new_rate = calculate_new_reward_rate(current_rate, 0, TARGET_EPOCH_REWARDS);
assert!(new_rate.eq(&current_rate));
}
@@ -178,7 +252,8 @@ mod tests {
let current_rate = 1000;
let new_rate = calculate_new_reward_rate(
current_rate,
TARGET_EPOCH_REWARDS.saturating_add(1_000_000_000),
TARGET_EPOCH_REWARDS.saturating_add(10_000_000_000),
TARGET_EPOCH_REWARDS,
);
assert!(new_rate.lt(&current_rate));
}
@@ -186,7 +261,8 @@ mod tests {
#[test]
fn test_calculate_new_reward_rate_lower_edge() {
let current_rate = BASE_REWARD_RATE_MIN_THRESHOLD;
let new_rate = calculate_new_reward_rate(current_rate, TARGET_EPOCH_REWARDS + 1);
let new_rate =
calculate_new_reward_rate(current_rate, TARGET_EPOCH_REWARDS + 1, TARGET_EPOCH_REWARDS);
assert!(new_rate.lt(&current_rate));
}
@@ -194,10 +270,11 @@ mod tests {
fn test_calculate_new_reward_rate_lower_fuzz() {
let mut rng = rand::thread_rng();
for _ in 0..FUZZ_SIZE {
let current_rate: u64 = rng.sample(Uniform::new(1, BUS_EPOCH_REWARDS));
let current_rate: u64 = rng.sample(Uniform::new(1, TARGET_EPOCH_REWARDS));
let actual_rewards: u64 =
rng.sample(Uniform::new(TARGET_EPOCH_REWARDS, MAX_EPOCH_REWARDS));
let new_rate = calculate_new_reward_rate(current_rate, actual_rewards);
let new_rate =
calculate_new_reward_rate(current_rate, actual_rewards, TARGET_EPOCH_REWARDS);
assert!(new_rate.lt(&current_rate));
}
}
@@ -207,7 +284,8 @@ mod tests {
let current_rate = 1000;
let new_rate = calculate_new_reward_rate(
current_rate,
TARGET_EPOCH_REWARDS.saturating_sub(1_000_000_000),
TARGET_EPOCH_REWARDS.saturating_sub(10_000_000_000),
TARGET_EPOCH_REWARDS,
);
assert!(new_rate.gt(&current_rate));
}
@@ -216,9 +294,10 @@ mod tests {
fn test_calculate_new_reward_rate_higher_fuzz() {
let mut rng = rand::thread_rng();
for _ in 0..FUZZ_SIZE {
let current_rate: u64 = rng.sample(Uniform::new(1, BUS_EPOCH_REWARDS));
let current_rate: u64 = rng.sample(Uniform::new(1, TARGET_EPOCH_REWARDS));
let actual_rewards: u64 = rng.sample(Uniform::new(1, TARGET_EPOCH_REWARDS));
let new_rate = calculate_new_reward_rate(current_rate, actual_rewards);
let new_rate =
calculate_new_reward_rate(current_rate, actual_rewards, TARGET_EPOCH_REWARDS);
assert!(new_rate.gt(&current_rate));
}
}
@@ -226,26 +305,323 @@ mod tests {
#[test]
fn test_calculate_new_reward_rate_max_smooth() {
let current_rate = 1000;
let new_rate = calculate_new_reward_rate(current_rate, 1);
let new_rate = calculate_new_reward_rate(current_rate, 1, TARGET_EPOCH_REWARDS);
assert!(new_rate.eq(&current_rate.saturating_mul(SMOOTHING_FACTOR)));
}
#[test]
fn test_calculate_new_reward_rate_min_smooth() {
let current_rate = 1000;
let new_rate = calculate_new_reward_rate(current_rate, u64::MAX);
let new_rate = calculate_new_reward_rate(current_rate, u64::MAX, TARGET_EPOCH_REWARDS);
assert!(new_rate.eq(&current_rate.saturating_div(SMOOTHING_FACTOR)));
}
#[test]
fn test_calculate_new_reward_rate_max_inputs() {
let new_rate = calculate_new_reward_rate(BUS_EPOCH_REWARDS, MAX_EPOCH_REWARDS);
assert!(new_rate.eq(&BUS_EPOCH_REWARDS.saturating_div(SMOOTHING_FACTOR)));
let new_rate = calculate_new_reward_rate(
TARGET_EPOCH_REWARDS,
MAX_EPOCH_REWARDS,
TARGET_EPOCH_REWARDS,
);
assert!(new_rate.eq(&TARGET_EPOCH_REWARDS.saturating_div(SMOOTHING_FACTOR)));
}
#[test]
fn test_calculate_new_reward_rate_min_inputs() {
let new_rate = calculate_new_reward_rate(1, 1);
let new_rate = calculate_new_reward_rate(1, 1, TARGET_EPOCH_REWARDS);
assert!(new_rate.eq(&1u64.saturating_mul(SMOOTHING_FACTOR)));
}
#[allow(deprecated)]
#[test]
fn test_process_epoch_simple() {
let mut config = Config {
base_reward_rate: 1024,
last_reset_at: 0,
min_difficulty: 1,
target_emmissions_rate: ONE_ORE,
};
let bus_0 = &mut Bus {
id: 0,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_1 = &mut Bus {
id: 1,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_2 = &mut Bus {
id: 2,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_3 = &mut Bus {
id: 3,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_4 = &mut Bus {
id: 4,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_5 = &mut Bus {
id: 5,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_6 = &mut Bus {
id: 6,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_7 = &mut Bus {
id: 7,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let busses = [bus_0, bus_1, bus_2, bus_3, bus_4, bus_5, bus_6, bus_7];
let clock = Clock::default();
let mint = Mint::V0(spl_token::state::Mint {
mint_authority: COption::None,
supply: ONE_ORE * 100,
decimals: TOKEN_DECIMALS,
is_initialized: true,
freeze_authority: COption::None,
});
let amount_to_mint = config.process_epoch(busses, &clock, &mint).unwrap();
assert_eq!(config.target_emmissions_rate, ONE_ORE);
assert_eq!(
ONE_ORE * EPOCH_MINUTES as u64 * BUS_COUNT as u64,
amount_to_mint
);
}
#[allow(deprecated)]
#[test]
fn test_process_epoch_emissions_boundary() {
let mut config = Config {
base_reward_rate: 1024,
last_reset_at: 0,
min_difficulty: 1,
target_emmissions_rate: ONE_ORE,
};
let bus_0 = &mut Bus {
id: 0,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_1 = &mut Bus {
id: 1,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_2 = &mut Bus {
id: 2,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_3 = &mut Bus {
id: 3,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_4 = &mut Bus {
id: 4,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_5 = &mut Bus {
id: 5,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_6 = &mut Bus {
id: 6,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_7 = &mut Bus {
id: 7,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let busses = [bus_0, bus_1, bus_2, bus_3, bus_4, bus_5, bus_6, bus_7];
let clock = Clock::default();
let mint = Mint::V0(spl_token::state::Mint {
mint_authority: COption::None,
supply: ONE_ORE * 525_600,
decimals: TOKEN_DECIMALS,
is_initialized: true,
freeze_authority: COption::None,
});
let amount_to_mint = config.process_epoch(busses, &clock, &mint).unwrap();
assert_eq!(config.target_emmissions_rate, 90_000_000_000);
assert_eq!(
90_000_000_000 * EPOCH_MINUTES as u64 * BUS_COUNT as u64,
amount_to_mint
);
}
#[allow(deprecated)]
#[test]
fn test_process_epoch_max_supply() {
let mut config = Config {
base_reward_rate: 1024,
last_reset_at: 0,
min_difficulty: 1,
target_emmissions_rate: 5_233_476_327,
};
let bus_0 = &mut Bus {
id: 0,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_1 = &mut Bus {
id: 1,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_2 = &mut Bus {
id: 2,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_3 = &mut Bus {
id: 3,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_4 = &mut Bus {
id: 4,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_5 = &mut Bus {
id: 5,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_6 = &mut Bus {
id: 6,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_7 = &mut Bus {
id: 7,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let busses = [bus_0, bus_1, bus_2, bus_3, bus_4, bus_5, bus_6, bus_7];
let clock = Clock::default();
let mint = Mint::V0(spl_token::state::Mint {
mint_authority: COption::None,
supply: ONE_ORE * 4_999_999,
decimals: TOKEN_DECIMALS,
is_initialized: true,
freeze_authority: COption::None,
});
let amount_to_mint = config.process_epoch(busses, &clock, &mint).unwrap();
assert_eq!(config.target_emmissions_rate, 5_233_476_327);
assert_eq!(ONE_ORE, amount_to_mint);
}
#[allow(deprecated)]
#[test]
fn test_process_epoch_zero_emissions() {
let mut config = Config {
base_reward_rate: 1024,
last_reset_at: 0,
min_difficulty: 1,
target_emmissions_rate: 5_233_476_327,
};
let bus_0 = &mut Bus {
id: 0,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_1 = &mut Bus {
id: 1,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_2 = &mut Bus {
id: 2,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_3 = &mut Bus {
id: 3,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_4 = &mut Bus {
id: 4,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_5 = &mut Bus {
id: 5,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_6 = &mut Bus {
id: 6,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let bus_7 = &mut Bus {
id: 7,
rewards: 0,
theoretical_rewards: 0,
top_balance: 0,
};
let busses = [bus_0, bus_1, bus_2, bus_3, bus_4, bus_5, bus_6, bus_7];
let clock = Clock::default();
let mint = Mint::V0(spl_token::state::Mint {
mint_authority: COption::None,
supply: ONE_ORE * 5_000_000,
decimals: TOKEN_DECIMALS,
is_initialized: true,
freeze_authority: COption::None,
});
let amount_to_mint = config.process_epoch(busses, &clock, &mint);
assert!(amount_to_mint.is_err());
}
}