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Westend Mock Runtime and Client (#874)

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* Copy-Pasta Call code from mock Rococo to mock Westend runtime

* Update Westend client to include signing and call related code

* Add missing part of license header

* Move `account_info_storage_key` to `polkadot-core` crate
This commit is contained in:
Hernando Castano
2021-04-07 19:50:16 -04:00
committed by Bastian Köcher
parent c6ae74725b
commit 81d4eb9ea6
8 changed files with 143 additions and 53 deletions
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bridges/primitives/polkadot-core/src/lib.rs
+33 -1
View File
@@ -25,7 +25,7 @@ use frame_support::{
constants::{BlockExecutionWeight, ExtrinsicBaseWeight, WEIGHT_PER_SECOND},
DispatchClass, Weight,
},
RuntimeDebug,
Blake2_128Concat, RuntimeDebug, StorageHasher, Twox128,
};
use frame_system::limits;
use sp_core::Hasher as HasherT;
@@ -34,6 +34,7 @@ use sp_runtime::{
traits::{BlakeTwo256, IdentifyAccount, Verify},
MultiSignature, OpaqueExtrinsic, Perbill,
};
use sp_std::prelude::Vec;
// Re-export's to avoid extra substrate dependencies in chain-specific crates.
pub use frame_support::Parameter;
@@ -290,6 +291,26 @@ impl Convert<sp_core::H256, AccountId> for AccountIdConverter {
}
}
/// Return a storage key for account data.
///
/// This is based on FRAME storage-generation code from Substrate:
/// https://github.com/paritytech/substrate/blob/c939ceba381b6313462d47334f775e128ea4e95d/frame/support/src/storage/generator/map.rs#L74
/// The equivalent command to invoke in case full `Runtime` is known is this:
/// `let key = frame_system::Account::<Runtime>::storage_map_final_key(&account_id);`
pub fn account_info_storage_key(id: &AccountId) -> Vec<u8> {
let module_prefix_hashed = Twox128::hash(b"System");
let storage_prefix_hashed = Twox128::hash(b"Account");
let key_hashed = parity_scale_codec::Encode::using_encoded(id, Blake2_128Concat::hash);
let mut final_key = Vec::with_capacity(module_prefix_hashed.len() + storage_prefix_hashed.len() + key_hashed.len());
final_key.extend_from_slice(&module_prefix_hashed[..]);
final_key.extend_from_slice(&storage_prefix_hashed[..]);
final_key.extend_from_slice(&key_hashed);
final_key
}
#[cfg(test)]
mod tests {
use super::*;
@@ -305,4 +326,15 @@ mod tests {
MAXIMAL_ENCODED_ACCOUNT_ID_SIZE,
);
}
#[test]
fn should_generate_storage_key() {
let acc = [
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32,
]
.into();
let key = account_info_storage_key(&acc);
assert_eq!(hex::encode(key), "26aa394eea5630e07c48ae0c9558cef7b99d880ec681799c0cf30e8886371da92dccd599abfe1920a1cff8a7358231430102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20");
}
}