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fixed mess with conversion rates (#1338)

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This commit is contained in:
Svyatoslav Nikolsky
2022-03-03 14:46:07 +03:00
committed by Bastian Köcher
parent dd7404f249
commit e822bbf8ab
5 changed files with 99 additions and 49 deletions
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bridges/relays/lib-substrate-relay/src/messages_metrics.rs
+6 -22
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@@ -16,7 +16,7 @@
//! Tools for supporting message lanes between two Substrate-based chains.
use crate::messages_lane::SubstrateMessageLane;
use crate::{helpers::tokens_conversion_rate, messages_lane::SubstrateMessageLane};
use codec::Decode;
use frame_system::AccountInfo;
@@ -119,19 +119,11 @@ impl<SC: Chain, TC: Chain> StandaloneMessagesMetrics<SC, TC> {
/// Return conversion rate from target to source tokens.
pub async fn target_to_source_conversion_rate(&self) -> Option<f64> {
Self::compute_target_to_source_conversion_rate(
*self.target_to_base_conversion_rate.as_ref()?.shared_value_ref().read().await,
*self.source_to_base_conversion_rate.as_ref()?.shared_value_ref().read().await,
)
}
/// Return conversion rate from target to source tokens, given conversion rates from
/// target/source tokens to some base token.
fn compute_target_to_source_conversion_rate(
target_to_base_conversion_rate: Option<f64>,
source_to_base_conversion_rate: Option<f64>,
) -> Option<f64> {
Some(source_to_base_conversion_rate? / target_to_base_conversion_rate?)
let from_token_value =
(*self.target_to_base_conversion_rate.as_ref()?.shared_value_ref().read().await)?;
let to_token_value =
(*self.source_to_base_conversion_rate.as_ref()?.shared_value_ref().read().await)?;
Some(tokens_conversion_rate(from_token_value, to_token_value))
}
}
@@ -379,14 +371,6 @@ mod tests {
use frame_support::storage::generator::StorageValue;
use sp_core::storage::StorageKey;
#[async_std::test]
async fn target_to_source_conversion_rate_works() {
assert_eq!(
StandaloneMessagesMetrics::<relay_rococo_client::Rococo, relay_wococo_client::Wococo>::compute_target_to_source_conversion_rate(Some(183.15), Some(12.32)),
Some(12.32 / 183.15),
);
}
#[test]
fn token_decimals_used_properly() {
let plancks = 425_000_000_000;