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Fix post dispatch weight #851

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merged 3 commits into from
Sep 20, 2022
Merged

Fix post dispatch weight #851

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6314a0e
Call post_dispatch for CheckedSignature::SelfContained
notlesh Sep 9, 2022
623fb07
add tests
nbaztec Sep 10, 2022
b75db32
rename tests
nbaztec Sep 10, 2022
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44 changes: 44 additions & 0 deletions frame/ethereum/src/tests/eip1559.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -407,3 +407,47 @@ fn call_should_handle_errors() {
Ethereum::execute(alice.address, &t3, None).ok().unwrap();
});
}

#[test]
fn transaction_with_extra_gas_should_adjust_weight() {
let (pairs, mut ext) = new_test_ext(1);
let alice = &pairs[0];
let base_extrinsic_weight = frame_system::limits::BlockWeights::with_sensible_defaults(
2000000000000,
sp_runtime::Perbill::from_percent(75),
)
.per_class
.get(frame_support::weights::DispatchClass::Normal)
.base_extrinsic;

ext.execute_with(|| {
let mut transaction = eip1559_erc20_creation_unsigned_transaction();
transaction.gas_limit = 9_000_000.into();
let signed = transaction.sign(&alice.private_key, None);
let call = crate::Call::<Test>::transact {
transaction: signed,
};
let source = call.check_self_contained().unwrap().unwrap();
let extrinsic = CheckedExtrinsic::<_, _, frame_system::CheckWeight<Test>, _> {
signed: fp_self_contained::CheckedSignature::SelfContained(source),
function: Call::Ethereum(call),
};
let dispatch_info = extrinsic.get_dispatch_info();
let post_dispatch_weight = extrinsic
.apply::<Test>(&dispatch_info, 0)
.unwrap()
.unwrap()
.actual_weight
.unwrap();

let expected_weight = base_extrinsic_weight.saturating_add(post_dispatch_weight);
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This implies that we are adding Substrate`s notion of base weight and Ethereum's. I don't believe these should be added in this way, as they both account for the same things (signature verification and basic accounting of fees).

It would be great if we could convince substrate not to include the extrinsic_base_weight...

let actual_weight = *frame_system::Pallet::<Test>::block_weight()
.get(frame_support::weights::DispatchClass::Normal);
assert_eq!(
expected_weight,
actual_weight,
"the block weight was unexpected, excess '{}'",
actual_weight as i128 - expected_weight as i128
);
});
}
44 changes: 44 additions & 0 deletions frame/ethereum/src/tests/eip2930.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -330,3 +330,47 @@ fn call_should_handle_errors() {
Ethereum::execute(alice.address, &t3, None).ok().unwrap();
});
}

#[test]
fn transaction_with_extra_gas_should_adjust_weight() {
let (pairs, mut ext) = new_test_ext(1);
let alice = &pairs[0];
let base_extrinsic_weight = frame_system::limits::BlockWeights::with_sensible_defaults(
2000000000000,
sp_runtime::Perbill::from_percent(75),
)
.per_class
.get(frame_support::weights::DispatchClass::Normal)
.base_extrinsic;

ext.execute_with(|| {
let mut transaction = eip2930_erc20_creation_unsigned_transaction();
transaction.gas_limit = 9_000_000.into();
let signed = transaction.sign(&alice.private_key, None);
let call = crate::Call::<Test>::transact {
transaction: signed,
};
let source = call.check_self_contained().unwrap().unwrap();
let extrinsic = CheckedExtrinsic::<_, _, frame_system::CheckWeight<Test>, _> {
signed: fp_self_contained::CheckedSignature::SelfContained(source),
function: Call::Ethereum(call),
};
let dispatch_info = extrinsic.get_dispatch_info();
let post_dispatch_weight = extrinsic
.apply::<Test>(&dispatch_info, 0)
.unwrap()
.unwrap()
.actual_weight
.unwrap();

let expected_weight = base_extrinsic_weight.saturating_add(post_dispatch_weight);
let actual_weight = *frame_system::Pallet::<Test>::block_weight()
.get(frame_support::weights::DispatchClass::Normal);
assert_eq!(
expected_weight,
actual_weight,
"the block weight was unexpected, excess '{}'",
actual_weight as i128 - expected_weight as i128
);
});
}
44 changes: 44 additions & 0 deletions frame/ethereum/src/tests/legacy.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -330,3 +330,47 @@ fn call_should_handle_errors() {
Ethereum::execute(alice.address, &t3, None).ok().unwrap();
});
}

#[test]
fn transaction_with_extra_gas_should_adjust_weight() {
let (pairs, mut ext) = new_test_ext(1);
let alice = &pairs[0];
let base_extrinsic_weight = frame_system::limits::BlockWeights::with_sensible_defaults(
2000000000000,
sp_runtime::Perbill::from_percent(75),
)
.per_class
.get(frame_support::weights::DispatchClass::Normal)
.base_extrinsic;

ext.execute_with(|| {
let mut transaction = legacy_erc20_creation_unsigned_transaction();
transaction.gas_limit = 9_000_000.into();
let signed = transaction.sign(&alice.private_key);
let call = crate::Call::<Test>::transact {
transaction: signed,
};
let source = call.check_self_contained().unwrap().unwrap();
let extrinsic = CheckedExtrinsic::<_, _, frame_system::CheckWeight<Test>, _> {
signed: fp_self_contained::CheckedSignature::SelfContained(source),
function: Call::Ethereum(call),
};
let dispatch_info = extrinsic.get_dispatch_info();
let post_dispatch_weight = extrinsic
.apply::<Test>(&dispatch_info, 0)
.unwrap()
.unwrap()
.actual_weight
.unwrap();

let expected_weight = base_extrinsic_weight.saturating_add(post_dispatch_weight);
let actual_weight = *frame_system::Pallet::<Test>::block_weight()
.get(frame_support::weights::DispatchClass::Normal);
assert_eq!(
expected_weight,
actual_weight,
"the block weight was unexpected, excess '{}'",
actual_weight as i128 - expected_weight as i128
);
});
}
2 changes: 0 additions & 2 deletions primitives/self-contained/src/checked_extrinsic.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -151,15 +151,13 @@ where
Ok(info) => info,
Err(err) => err.post_info,
};

Extra::post_dispatch(
None,
info,
&post_info,
len,
&res.map(|_| ()).map_err(|e| e.error),
)?;

Ok(res)
}
}
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