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added one more test to parachains finality pallet (#1435)

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This commit is contained in:
Svyatoslav Nikolsky
2022-06-06 12:43:36 +03:00
committed by Bastian Köcher
parent 5340ee5ab5
commit 690a929cf6
1 changed files with 51 additions and 1 deletions
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bridges/modules/parachains/src/lib.rs
+51 -1
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@@ -264,7 +264,7 @@ pub mod pallet {
}
/// Try to update parachain head.
fn update_parachain_head(
pub(super) fn update_parachain_head(
parachain: ParaId,
stored_best_head: Option<BestParaHead>,
updated_at_relay_block_number: RelayBlockNumber,
@@ -691,4 +691,54 @@ mod tests {
);
});
}
#[test]
fn is_not_rewriting_existing_head_if_failed_to_read_updated_head() {
let (state_root_5, proof_5) = prepare_parachain_heads_proof(vec![(1, head_data(1, 5))]);
let (state_root_10_at_20, proof_10_at_20) =
prepare_parachain_heads_proof(vec![(2, head_data(2, 10))]);
let (state_root_10_at_30, proof_10_at_30) =
prepare_parachain_heads_proof(vec![(1, head_data(1, 10))]);
run_test(|| {
// we've already imported head#5 of parachain#1 at relay block#10
initialize(state_root_5);
import_parachain_1_head(0, state_root_5, proof_5).expect("ok");
assert_eq!(
Pallet::<TestRuntime>::best_parachain_head(ParaId(1)),
Some(head_data(1, 5))
);
// then if someone is pretending to provide updated head#10 of parachain#1 at relay
// block#20, but fails to do that
//
// => we'll leave previous value
proceed(20, state_root_10_at_20);
assert_ok!(Pallet::<TestRuntime>::submit_parachain_heads(
Origin::signed(1),
test_relay_header(20, state_root_10_at_20).hash(),
vec![ParaId(1)],
proof_10_at_20,
),);
assert_eq!(
Pallet::<TestRuntime>::best_parachain_head(ParaId(1)),
Some(head_data(1, 5))
);
// then if someone is pretending to provide updated head#10 of parachain#1 at relay
// block#30, and actualy provides it
//
// => we'll update value
proceed(30, state_root_10_at_30);
assert_ok!(Pallet::<TestRuntime>::submit_parachain_heads(
Origin::signed(1),
test_relay_header(30, state_root_10_at_30).hash(),
vec![ParaId(1)],
proof_10_at_30,
),);
assert_eq!(
Pallet::<TestRuntime>::best_parachain_head(ParaId(1)),
Some(head_data(1, 10))
);
});
}
}