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test(middleware): fix flapping gas oracle (#514) 

* test(middleware): fix flapping gas oracle

* into > from
This commit is contained in:
Alexey Shekhirin 2021-10-16 18:47:17 +03:00 committed by GitHub
parent bef7960a2b
commit 956a87a924
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1 changed files with 27 additions and 3 deletions
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30
ethers-middleware/tests/gas_oracle.rs
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@ -1,10 +1,32 @@
#![cfg(not(target_arch = "wasm32"))]
use std::convert::TryFrom;
use async_trait::async_trait;
use ethers_core::{types::*, utils::Ganache};
use ethers_middleware::gas_oracle::{
EthGasStation, Etherchain, Etherscan, GasCategory, GasOracle, GasOracleMiddleware,
EthGasStation, Etherchain, Etherscan, GasCategory, GasOracle, GasOracleError,
GasOracleMiddleware,
};
use ethers_providers::{Http, Middleware, Provider};
use std::convert::TryFrom;
#[derive(Debug)]
struct FakeGasOracle {
gas_price: U256,
}
#[cfg_attr(target_arch = "wasm32", async_trait(?Send))]
#[cfg_attr(not(target_arch = "wasm32"), async_trait)]
impl GasOracle for FakeGasOracle {
async fn fetch(&self) -> Result<U256, GasOracleError> {
Ok(self.gas_price)
}
async fn estimate_eip1559_fees(&self) -> Result<(U256, U256), GasOracleError> {
Err(GasOracleError::Eip1559EstimationNotSupported)
}
}
#[tokio::test]
async fn using_gas_oracle() {
@ -16,7 +38,9 @@ async fn using_gas_oracle() {
let provider = Provider::<Http>::try_from(ganache.endpoint()).unwrap();
// assign a gas oracle to use
let gas_oracle = EthGasStation::new(None);
let gas_oracle = FakeGasOracle {
gas_price: 1337.into(),
};
let expected_gas_price = gas_oracle.fetch().await.unwrap();
let provider = GasOracleMiddleware::new(provider, gas_oracle);