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im-online: use EstimateNextSessionRotation to get better estimates of session progress (#8242)

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* frame-support: add method to estimate current session progress

* im-online: use EstimateNextSessionRotation trait to delay heartbeats

* node: fix im-online pallet instantiation

* frame-support: fix docs

* frame: fix tests

* pallet-session: last block of periodic session means 100% session progress

* pallet-session: add test for periodic session progress

* pallet-babe: fix epoch progress and add test

* frame-support: return weight with session estimates

* pallet-im-online: add test for session progress logic
This commit is contained in:
André Silva
2021-03-12 11:50:07 +00:00
committed by GitHub
parent a4e8875897
commit 5182209788
12 changed files with 403 additions and 142 deletions
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substrate/frame/babe/src/tests.rs
+34 -2
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@@ -20,12 +20,12 @@
use super::{Call, *};
use frame_support::{
assert_err, assert_ok,
traits::{Currency, OnFinalize},
traits::{Currency, EstimateNextSessionRotation, OnFinalize},
weights::{GetDispatchInfo, Pays},
};
use mock::*;
use pallet_session::ShouldEndSession;
use sp_consensus_babe::{AllowedSlots, Slot, BabeEpochConfiguration};
use sp_consensus_babe::{AllowedSlots, BabeEpochConfiguration, Slot};
use sp_core::crypto::Pair;
const EMPTY_RANDOMNESS: [u8; 32] = [
@@ -220,6 +220,38 @@ fn can_predict_next_epoch_change() {
})
}
#[test]
fn can_estimate_current_epoch_progress() {
new_test_ext(1).execute_with(|| {
assert_eq!(<Test as Config>::EpochDuration::get(), 3);
// with BABE the genesis block is not part of any epoch, the first epoch starts at block #1,
// therefore its last block should be #3
for i in 1u64..4 {
progress_to_block(i);
assert_eq!(Babe::estimate_next_session_rotation(i).0.unwrap(), 4);
// the last block of the epoch must have 100% progress.
if Babe::estimate_next_session_rotation(i).0.unwrap() - 1 == i {
assert_eq!(
Babe::estimate_current_session_progress(i).0.unwrap(),
Percent::from_percent(100)
);
} else {
assert!(Babe::estimate_current_session_progress(i).0.unwrap() < Percent::from_percent(100));
}
}
// the first block of the new epoch counts towards the epoch progress as well
progress_to_block(4);
assert_eq!(
Babe::estimate_current_session_progress(4).0.unwrap(),
Percent::from_percent(33),
);
})
}
#[test]
fn can_enact_next_config() {
new_test_ext(1).execute_with(|| {