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(0, test_relay_header(0, state_root).hash()),
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parachains.clone(),
proof.clone(),
),
Error::<TestRuntime>::BridgeModule(OwnedBridgeModuleError::Halted)
);
// `submit_parachain_heads()` should succeed now that the pallet is resumed.
PalletOperatingMode::<TestRuntime>::put(BasicOperatingMode::Normal);
assert_ok!(Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
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parachains,
#[test]
fn imports_initial_parachain_heads() {
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let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![
(1, head_data(1, 0)),
(3, head_data(3, 10)),
]);
run_test(|| {
initialize(state_root);
// we're trying to update heads of parachains 1 and 3
let expected_weight =
WeightInfo::submit_parachain_heads_weight(DbWeight::get(), &proof, 2);
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
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parachains,
);
assert_ok!(result);
assert_eq!(result.expect("checked above").pays_fee, Pays::Yes);
assert_eq!(result.expect("checked above").actual_weight, Some(expected_weight));
// 1 and 3 are updated, because proof is missing head of parachain#2
assert_eq!(ParasInfo::<TestRuntime>::get(ParaId(1)), Some(initial_best_head(1)));
assert_eq!(ParasInfo::<TestRuntime>::get(ParaId(2)), None);
ParasInfo::<TestRuntime>::get(ParaId(3)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 0,
head_hash: head_data(3, 10).hash()
},
next_imported_hash_position: 1,
})
);
assert_eq!(
ImportedParaHeads::<TestRuntime>::get(
ParaId(1),
initial_best_head(1).best_head_hash.head_hash
)
.map(|h| h.into_inner()),
Some(stored_head_data(1, 0))
ImportedParaHeads::<TestRuntime>::get(
ParaId(2),
initial_best_head(2).best_head_hash.head_hash
)
.map(|h| h.into_inner()),
ImportedParaHeads::<TestRuntime>::get(ParaId(3), head_hash(3, 10))
.map(|h| h.into_inner()),
Some(stored_head_data(3, 10))
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assert_eq!(
System::<TestRuntime>::events(),
vec![
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: initial_best_head(1).best_head_hash.head_hash,
}),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(3),
parachain_head_hash: head_data(3, 10).hash(),
}),
topics: vec![],
}
],
);
});
}
#[test]
fn imports_parachain_heads_is_able_to_progress() {
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let (state_root_5, proof_5, parachains_5) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 5))]);
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let (state_root_10, proof_10, parachains_10) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 10))]);
run_test(|| {
// start with relay block #0 and import head#5 of parachain#1
initialize(state_root_5);
let result = import_parachain_1_head(0, state_root_5, parachains_5, proof_5);
// first parachain head is imported for free
assert_eq!(result.unwrap().pays_fee, Pays::No);
ParasInfo::<TestRuntime>::get(ParaId(1)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 0,
head_hash: head_data(1, 5).hash()
},
next_imported_hash_position: 1,
})
);
assert_eq!(
ImportedParaHeads::<TestRuntime>::get(ParaId(1), head_data(1, 5).hash())
.map(|h| h.into_inner()),
Some(stored_head_data(1, 5))
ImportedParaHeads::<TestRuntime>::get(ParaId(1), head_data(1, 10).hash())
.map(|h| h.into_inner()),
assert_eq!(
System::<TestRuntime>::events(),
vec![EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 5).hash(),
}),
topics: vec![],
}],
);
// import head#10 of parachain#1 at relay block #1
let (relay_1_hash, justification) = proceed(1, state_root_10);
let result = import_parachain_1_head(1, state_root_10, parachains_10, proof_10);
// second parachain head is imported for fee
assert_eq!(result.unwrap().pays_fee, Pays::Yes);
ParasInfo::<TestRuntime>::get(ParaId(1)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 1,
head_hash: head_data(1, 10).hash()
},
next_imported_hash_position: 2,
})
);
assert_eq!(
ImportedParaHeads::<TestRuntime>::get(ParaId(1), head_data(1, 5).hash())
.map(|h| h.into_inner()),
Some(stored_head_data(1, 5))
ImportedParaHeads::<TestRuntime>::get(ParaId(1), head_data(1, 10).hash())
.map(|h| h.into_inner()),
Some(stored_head_data(1, 10))
assert_eq!(
System::<TestRuntime>::events(),
vec![
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 5).hash(),
}),
topics: vec![],
},
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EventRecord {
phase: Phase::Initialization,
event: TestEvent::Grandpa1(
pallet_bridge_grandpa::Event::UpdatedBestFinalizedHeader {
number: 1,
hash: relay_1_hash,
grandpa_info: StoredHeaderGrandpaInfo {
finality_proof: justification,
new_verification_context: None,
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}
),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 10).hash(),
}),
topics: vec![],
}
],
);
#[test]
fn ignores_untracked_parachain() {
let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![
(1, head_data(1, 5)),
(UNTRACKED_PARACHAIN_ID, head_data(1, 5)),
(2, head_data(1, 5)),
]);
run_test(|| {
// start with relay block #0 and try to import head#5 of parachain#1 and untracked
// parachain
let expected_weight =
WeightInfo::submit_parachain_heads_weight(DbWeight::get(), &proof, 3)
.saturating_sub(WeightInfo::parachain_head_storage_write_weight(
DbWeight::get(),
));
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
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parachains,
);
assert_ok!(result);
assert_eq!(result.expect("checked above").actual_weight, Some(expected_weight));
ParasInfo::<TestRuntime>::get(ParaId(1)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 0,
head_hash: head_data(1, 5).hash()
},
next_imported_hash_position: 1,
})
);
assert_eq!(ParasInfo::<TestRuntime>::get(ParaId(UNTRACKED_PARACHAIN_ID)), None,);
ParasInfo::<TestRuntime>::get(ParaId(2)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 0,
head_hash: head_data(1, 5).hash()
},
next_imported_hash_position: 1,
})
);
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assert_eq!(
System::<TestRuntime>::events(),
vec![
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 5).hash(),
}),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UntrackedParachainRejected {
parachain: ParaId(UNTRACKED_PARACHAIN_ID),
}),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(2),
parachain_head_hash: head_data(1, 5).hash(),
}),
topics: vec![],
}
],
);
#[test]
fn does_nothing_when_already_imported_this_head_at_previous_relay_header() {
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let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 0))]);
run_test(|| {
// import head#0 of parachain#1 at relay block#0
initialize(state_root);
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assert_ok!(import_parachain_1_head(0, state_root, parachains.clone(), proof.clone()));
assert_eq!(ParasInfo::<TestRuntime>::get(ParaId(1)), Some(initial_best_head(1)));
assert_eq!(
System::<TestRuntime>::events(),
vec![EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: initial_best_head(1).best_head_hash.head_hash,
}),
topics: vec![],
}],
);
// try to import head#0 of parachain#1 at relay block#1
// => call succeeds, but nothing is changed
let (relay_1_hash, justification) = proceed(1, state_root);
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assert_ok!(import_parachain_1_head(1, state_root, parachains, proof));
assert_eq!(ParasInfo::<TestRuntime>::get(ParaId(1)), Some(initial_best_head(1)));
assert_eq!(
System::<TestRuntime>::events(),
vec![
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: initial_best_head(1).best_head_hash.head_hash,
}),
topics: vec![],
},
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EventRecord {
phase: Phase::Initialization,
event: TestEvent::Grandpa1(
pallet_bridge_grandpa::Event::UpdatedBestFinalizedHeader {
number: 1,
hash: relay_1_hash,
grandpa_info: StoredHeaderGrandpaInfo {
finality_proof: justification,
new_verification_context: None,
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}
),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::RejectedObsoleteParachainHead {
parachain: ParaId(1),
parachain_head_hash: initial_best_head(1).best_head_hash.head_hash,
}),
topics: vec![],
}
],
);
});
}
#[test]
fn does_nothing_when_already_imported_head_at_better_relay_header() {
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let (state_root_5, proof_5, parachains_5) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 5))]);
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let (state_root_10, proof_10, parachains_10) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 10))]);
run_test(|| {
// start with relay block #0
initialize(state_root_5);
// head#10 of parachain#1 at relay block#1
let (relay_1_hash, justification) = proceed(1, state_root_10);
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assert_ok!(import_parachain_1_head(1, state_root_10, parachains_10, proof_10));
ParasInfo::<TestRuntime>::get(ParaId(1)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 1,
head_hash: head_data(1, 10).hash()
},
next_imported_hash_position: 1,
})
);
assert_eq!(
System::<TestRuntime>::events(),
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vec![
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Grandpa1(
pallet_bridge_grandpa::Event::UpdatedBestFinalizedHeader {
number: 1,
hash: relay_1_hash,
grandpa_info: StoredHeaderGrandpaInfo {
finality_proof: justification.clone(),
new_verification_context: None,
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}
),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 10).hash(),
}),
topics: vec![],
}
],
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// now try to import head#5 at relay block#0
// => nothing is changed, because better head has already been imported
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assert_ok!(import_parachain_1_head(0, state_root_5, parachains_5, proof_5));
ParasInfo::<TestRuntime>::get(ParaId(1)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 1,
head_hash: head_data(1, 10).hash()
},
next_imported_hash_position: 1,
})
);
assert_eq!(
System::<TestRuntime>::events(),
vec![
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EventRecord {
phase: Phase::Initialization,
event: TestEvent::Grandpa1(
pallet_bridge_grandpa::Event::UpdatedBestFinalizedHeader {
number: 1,
hash: relay_1_hash,
grandpa_info: StoredHeaderGrandpaInfo {
finality_proof: justification,
new_verification_context: None,
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}
),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 10).hash(),
}),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::RejectedObsoleteParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 5).hash(),
}),
topics: vec![],
}
],
);
#[test]
fn does_nothing_when_parachain_head_is_too_large() {
let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![
(1, head_data(1, 5)),
(4, big_head_data(1, 5)),
]);
run_test(|| {
// start with relay block #0 and try to import head#5 of parachain#1 and big parachain
initialize(state_root);
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
parachains,
proof,
);
assert_ok!(result);
assert_eq!(
ParasInfo::<TestRuntime>::get(ParaId(1)),
Some(ParaInfo {
best_head_hash: BestParaHeadHash {
at_relay_block_number: 0,
head_hash: head_data(1, 5).hash()
},
next_imported_hash_position: 1,
})
);
assert_eq!(ParasInfo::<TestRuntime>::get(ParaId(4)), None);
assert_eq!(
System::<TestRuntime>::events(),
vec![
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::UpdatedParachainHead {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 5).hash(),
}),
topics: vec![],
},
EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::RejectedLargeParachainHead {
parachain: ParaId(4),
parachain_head_hash: big_head_data(1, 5).hash(),
parachain_head_size: big_stored_head_data(1, 5).encoded_size() as u32,
}),
topics: vec![],
},
],
);
});
}
#[test]
fn prunes_old_heads() {
run_test(|| {
let heads_to_keep = crate::mock::HeadsToKeep::get();
// import exactly `HeadsToKeep` headers
for i in 0..heads_to_keep {
let (state_root, proof, parachains) = prepare_parachain_heads_proof::<
RegularParachainHeader,
>(vec![(1, head_data(1, i))]);
if i == 0 {
initialize(state_root);
} else {
proceed(i, state_root);
}
let expected_weight = weight_of_import_parachain_1_head(&proof, false);
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let result = import_parachain_1_head(i, state_root, parachains, proof);
assert_ok!(result);
assert_eq!(result.expect("checked above").actual_weight, Some(expected_weight));
}
// nothing is pruned yet
for i in 0..heads_to_keep {
assert!(ImportedParaHeads::<TestRuntime>::get(ParaId(1), head_data(1, i).hash())
.is_some());
}
// import next relay chain header and next parachain head
let (state_root, proof, parachains) = prepare_parachain_heads_proof::<
RegularParachainHeader,
>(vec![(1, head_data(1, heads_to_keep))]);
proceed(heads_to_keep, state_root);
let expected_weight = weight_of_import_parachain_1_head(&proof, true);
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let result = import_parachain_1_head(heads_to_keep, state_root, parachains, proof);
assert_ok!(result);
assert_eq!(result.expect("checked above").actual_weight, Some(expected_weight));
// and the head#0 is pruned
assert!(
ImportedParaHeads::<TestRuntime>::get(ParaId(1), head_data(1, 0).hash()).is_none()
);
for i in 1..=heads_to_keep {
assert!(ImportedParaHeads::<TestRuntime>::get(ParaId(1), head_data(1, i).hash())
.is_some());
}
});
}
#[test]
fn fails_on_unknown_relay_chain_block() {
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let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 5))]);
run_test(|| {
// start with relay block #0
initialize(state_root);
// try to import head#5 of parachain#1 at unknown relay chain block #1
assert_noop!(
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import_parachain_1_head(1, state_root, parachains, proof),
Error::<TestRuntime>::UnknownRelayChainBlock
);
});
}
#[test]
fn fails_on_invalid_storage_proof() {
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let (_state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 5))]);
run_test(|| {
// start with relay block #0
initialize(Default::default());
// try to import head#5 of parachain#1 at relay chain block #0
assert_noop!(
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import_parachain_1_head(0, Default::default(), parachains, proof),
Error::<TestRuntime>::HeaderChainStorageProof(HeaderChainError::StorageProof(
StorageProofError::StorageRootMismatch
))
#[test]
fn is_not_rewriting_existing_head_if_failed_to_read_updated_head() {
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let (state_root_5, proof_5, parachains_5) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 5))]);
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let (state_root_10_at_20, proof_10_at_20, parachains_10_at_20) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(2, head_data(2, 10))]);
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let (state_root_10_at_30, proof_10_at_30, parachains_10_at_30) =
prepare_parachain_heads_proof::<RegularParachainHeader>(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);
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import_parachain_1_head(0, state_root_5, parachains_5, proof_5).expect("ok");
assert_eq!(
Pallet::<TestRuntime>::best_parachain_head(ParaId(1)),
Some(stored_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(
RuntimeOrigin::signed(1),
(20, test_relay_header(20, state_root_10_at_20).hash()),
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parachains_10_at_20,
proof_10_at_20,
),);
assert_eq!(
Pallet::<TestRuntime>::best_parachain_head(ParaId(1)),
Some(stored_head_data(1, 5))
);
// then if someone is pretending to provide updated head#10 of parachain#1 at relay
// block#30, and actually provides it
//
// => we'll update value
proceed(30, state_root_10_at_30);
assert_ok!(Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(30, test_relay_header(30, state_root_10_at_30).hash()),
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parachains_10_at_30,
proof_10_at_30,
),);
assert_eq!(
Pallet::<TestRuntime>::best_parachain_head(ParaId(1)),
Some(stored_head_data(1, 10))
);
});
}
#[test]
fn storage_keys_computed_properly() {
assert_eq!(
ParasInfo::<TestRuntime>::storage_map_final_key(ParaId(42)).to_vec(),
ParasInfoKeyProvider::final_key("Parachains", &ParaId(42)).0
);
assert_eq!(
ImportedParaHeads::<TestRuntime>::storage_double_map_final_key(
ParaId(42),
ParaHash::from([21u8; 32])
)
.to_vec(),
ImportedParaHeadsKeyProvider::final_key(
&ParaId(42),
&ParaHash::from([21u8; 32])
#[test]
fn ignores_parachain_head_if_it_is_missing_from_storage_proof() {
let (state_root, proof, _) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![]);
let parachains = vec![(ParaId(2), Default::default())];
run_test(|| {
initialize(state_root);
assert_ok!(Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
parachains,
proof,
));
assert_eq!(
System::<TestRuntime>::events(),
vec![EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::MissingParachainHead {
parachain: ParaId(2),
}),
topics: vec![],
}],
);
});
}
#[test]
fn ignores_parachain_head_if_parachain_head_hash_is_wrong() {
let (state_root, proof, _) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 0))]);
let parachains = vec![(ParaId(1), head_data(1, 10).hash())];
run_test(|| {
initialize(state_root);
assert_ok!(Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
parachains,
proof,
));
assert_eq!(
System::<TestRuntime>::events(),
vec![EventRecord {
phase: Phase::Initialization,
event: TestEvent::Parachains(Event::IncorrectParachainHeadHash {
parachain: ParaId(1),
parachain_head_hash: head_data(1, 10).hash(),
actual_parachain_head_hash: head_data(1, 0).hash(),
}),
topics: vec![],
}],
);
});
}
#[test]
fn test_bridge_parachain_call_is_correctly_defined() {
let (state_root, proof, _) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 0))]);
let parachains = vec![(ParaId(2), Default::default())];
let relay_header_id = (0, test_relay_header(0, state_root).hash());
let direct_submit_parachain_heads_call = Call::<TestRuntime>::submit_parachain_heads {
at_relay_block: relay_header_id,
parachains: parachains.clone(),
parachain_heads_proof: proof.clone(),
};
let indirect_submit_parachain_heads_call = BridgeParachainCall::submit_parachain_heads {
at_relay_block: relay_header_id,
parachains,
parachain_heads_proof: proof,
};
assert_eq!(
direct_submit_parachain_heads_call.encode(),
indirect_submit_parachain_heads_call.encode()
);
}
generate_owned_bridge_module_tests!(BasicOperatingMode::Normal, BasicOperatingMode::Halted);
#[test]
fn maybe_max_parachains_returns_correct_value() {
assert_eq!(MaybeMaxParachains::<TestRuntime, ()>::get(), Some(mock::TOTAL_PARACHAINS));
}
#[test]
fn maybe_max_total_parachain_hashes_returns_correct_value() {
assert_eq!(
MaybeMaxTotalParachainHashes::<TestRuntime, ()>::get(),
Some(mock::TOTAL_PARACHAINS * mock::HeadsToKeep::get()),
);
}
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#[test]
fn submit_finality_proof_requires_signed_origin() {
run_test(|| {
let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(1, head_data(1, 0))]);
initialize(state_root);
// `submit_parachain_heads()` should fail when the pallet is halted.
assert_noop!(
Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::root(),
(0, test_relay_header(0, state_root).hash()),
parachains,
proof,
),
DispatchError::BadOrigin
);
})
}
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#[test]
fn may_be_free_for_submitting_filtered_heads() {
run_test(|| {
let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(2, head_data(2, 5))]);
// start with relay block #0 and import head#5 of parachain#2
initialize(state_root);
// first submission is free
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
parachains.clone(),
proof.clone(),
);
assert_eq!(result.unwrap().pays_fee, Pays::No);
// next submission is NOT free, because we haven't updated anything
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(0, test_relay_header(0, state_root).hash()),
parachains,
proof,
);
assert_eq!(result.unwrap().pays_fee, Pays::Yes);
// then we submit new head, proved at relay block `FreeHeadersInterval - 1` => Pays::Yes
let (state_root, proof, parachains) = prepare_parachain_heads_proof::<
RegularParachainHeader,
>(vec![(2, head_data(2, 50))]);
let relay_block_number = FreeHeadersInterval::get() - 1;
proceed(relay_block_number, state_root);
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(relay_block_number, test_relay_header(relay_block_number, state_root).hash()),
parachains,
proof,
);
assert_eq!(result.unwrap().pays_fee, Pays::Yes);
// then we submit new head, proved after `FreeHeadersInterval` => Pays::No
let (state_root, proof, parachains) = prepare_parachain_heads_proof::<
RegularParachainHeader,
>(vec![(2, head_data(2, 100))]);
let relay_block_number = relay_block_number + FreeHeadersInterval::get();
proceed(relay_block_number, state_root);
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(relay_block_number, test_relay_header(relay_block_number, state_root).hash()),
parachains,
proof,
);
assert_eq!(result.unwrap().pays_fee, Pays::No);
// then we submit new BIG head, proved after `FreeHeadersInterval` => Pays::Yes
// then we submit new head, proved after `FreeHeadersInterval` => Pays::No
let mut large_head = head_data(2, 100);
large_head.0.extend(&[42u8; BigParachain::MAX_HEADER_SIZE as _]);
let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(2, large_head)]);
let relay_block_number = relay_block_number + FreeHeadersInterval::get();
proceed(relay_block_number, state_root);
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(relay_block_number, test_relay_header(relay_block_number, state_root).hash()),
parachains,
proof,
);
assert_eq!(result.unwrap().pays_fee, Pays::Yes);
})
}
#[test]
fn grandpa_and_parachain_pallets_share_free_headers_counter() {
run_test(|| {
initialize(Default::default());
// set free headers limit to `4`
let mut free_headers_remaining = 4;
pallet_bridge_grandpa::FreeHeadersRemaining::<TestRuntime, BridgesGrandpaPalletInstance>::set(
Some(free_headers_remaining),
);
// import free GRANDPA and parachain headers
let mut relay_block_number = 0;
for i in 0..2 {
// import free GRANDPA header
let (state_root, proof, parachains) = prepare_parachain_heads_proof::<
RegularParachainHeader,
>(vec![(2, head_data(2, 5 + i))]);
relay_block_number = relay_block_number + FreeHeadersInterval::get();
proceed(relay_block_number, state_root);
assert_eq!(
pallet_bridge_grandpa::FreeHeadersRemaining::<
TestRuntime,
BridgesGrandpaPalletInstance,
>::get(),
Some(free_headers_remaining - 1),
);
free_headers_remaining = free_headers_remaining - 1;
// import free parachain header
assert_ok!(Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(relay_block_number, test_relay_header(relay_block_number, state_root).hash()),
parachains,
proof,
),);
assert_eq!(
pallet_bridge_grandpa::FreeHeadersRemaining::<
TestRuntime,
BridgesGrandpaPalletInstance,
>::get(),
Some(free_headers_remaining - 1),
);
free_headers_remaining = free_headers_remaining - 1;
}
// try to import free GRANDPA header => non-free execution
let (state_root, proof, parachains) =
prepare_parachain_heads_proof::<RegularParachainHeader>(vec![(2, head_data(2, 7))]);
relay_block_number = relay_block_number + FreeHeadersInterval::get();
let result = pallet_bridge_grandpa::Pallet::<TestRuntime, BridgesGrandpaPalletInstance>::submit_finality_proof_ex(
RuntimeOrigin::signed(1),
Box::new(test_relay_header(relay_block_number, state_root)),
make_default_justification(&test_relay_header(relay_block_number, state_root)),
TEST_GRANDPA_SET_ID,
false,
);
assert_eq!(result.unwrap().pays_fee, Pays::Yes);
// try to import free parachain header => non-free execution
let result = Pallet::<TestRuntime>::submit_parachain_heads(
RuntimeOrigin::signed(1),
(relay_block_number, test_relay_header(relay_block_number, state_root).hash()),
parachains,
proof,
);
assert_eq!(result.unwrap().pays_fee, Pays::Yes);
assert_eq!(
pallet_bridge_grandpa::FreeHeadersRemaining::<
TestRuntime,
BridgesGrandpaPalletInstance,
>::get(),
Some(0),
);
});
}