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flipper.rs
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flipper.rs
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// SPDX-License-Identifier: Apache-2.0
//
// This file is part of Ethink.
//
// Copyright (c) 2023-2024 Alexander Gryaznov.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! Integraion tests for ethink!
#![allow(non_snake_case)]
mod common;
use common::{consts::*, *};
use ep_eth::{compose_and_sign_tx, AccountId20, EnvelopedEncodable, EthTxInput, TransactionAction};
use ep_mapping::{SubstrateWeight, Weight};
use serde_json::{value::Serializer, Deserializer};
use sp_core::{ecdsa, Pair, U256};
use sp_runtime::Serialize;
use std::sync::Once;
use ureq::json;
const FLIPPER_PATH: &'static str = concat!(
env!("CARGO_MANIFEST_DIR"),
"/../../dapp/contracts/flipper.ink/Cargo.toml"
);
// Sync primitive to build contract only once per test suite run
static ONCE: Once = Once::new();
#[tokio::test]
async fn eth_sendRawTransaction() {
// Spawn node and deploy contract
let mut env: Env<PolkadotConfig> =
prepare_node_and_contract!(ONCE, FLIPPER_PATH, vec!["false"]);
// (Flipper is deployed with `false` state)
let input = EthTxInput {
signer: ecdsa::Pair::from_string(ALITH_KEY, None).unwrap(),
action: TransactionAction::Call(env.contract_address().into()),
data: encode!(FLIPPER_PATH, "flip"),
..Default::default()
};
let tx = compose_and_sign_tx(input);
let tx_hex = format!("0x{:x}", &tx.encode());
// Make ETH RPC request (to switch flipper to `true`)
let rs = rpc_rq!(env,
{
"jsonrpc": "2.0",
"method": "eth_sendRawTransaction",
"params": [ &tx_hex ],
"id": 0
});
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
let _tx_hash = extract_result!(&json);
// Wait until tx gets executed
let _ = &env.wait_for_event("ethink.EthTransactionExecuted", 3).await;
// Check state
let output = call!(env, "get");
let rs = Deserializer::from_slice(&output.stdout);
// Should be flipped to `true`
assert!(json_get!(rs["data"]["Tuple"]["values"][0]["Bool"])
.as_bool()
.expect("can't parse cargo contract output"));
}
#[tokio::test]
async fn eth_sendTransaction() {
// Spawn node and deploy contract
let mut env: Env<PolkadotConfig> =
prepare_node_and_contract!(ONCE, FLIPPER_PATH, vec!["false"], BALTATHAR_KEY);
// (Flipper is deployed with `false` state)
// Make ETH RPC request (to flip it to `true`)
let rs = rpc_rq!(env,
{
"jsonrpc": "2.0",
"method": "eth_sendTransaction",
"params": [{
"from": BALTATHAR_ADDRESS,
"to": &env.contract_address(),
"data": encode!(FLIPPER_PATH, "flip"),
"gas": SubstrateWeight::max()
},
"latest"],
"id": 0
});
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
let _tx_hash = extract_result!(&json);
// Wait until tx gets executed
let _ = &env.wait_for_event("ethink.EthTransactionExecuted", 3).await;
// Check state
let output = call!(env, "get");
let rs = Deserializer::from_slice(&output.stdout);
// Should be flipped to `true`
assert!(json_get!(rs["data"]["Tuple"]["values"][0]["Bool"])
.as_bool()
.expect("can't parse cargo contract output"));
}
#[tokio::test]
async fn gas_limit_is_respected() {
// Spawn node and deploy contract
let mut env: Env<PolkadotConfig> =
prepare_node_and_contract!(ONCE, FLIPPER_PATH, vec!["false"], BALTATHAR_KEY);
// (Flipper is deployed with `false` state)
// Make ETH RPC request (to flip it to `true`)
// Insufficient gas_limit (None => 0)
let rs = rpc_rq!(env,
{
"jsonrpc": "2.0",
"method": "eth_sendTransaction",
"params": [{
"from": BALTATHAR_ADDRESS,
"to": &env.contract_address(),
"data": encode!(FLIPPER_PATH, "flip")
},
"latest"],
"id": 0
});
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
let _tx_hash = extract_result!(&json);
// Wait until tx fails (or timeout)
let _ = &env.wait_for_event("system.ExtrinsicFailed", 2).await;
// Check state
let output = call!(env, "get");
let rs = Deserializer::from_slice(&output.stdout);
// Should stay flipped to `false` as tx should have failed with insuficcient gas
assert!(!json_get!(rs["data"]["Tuple"]["values"][0]["Bool"])
.as_bool()
.expect("can't parse cargo contract output"));
// Now let's set gas_limit to be half of the amount estimated
// Retrieve gas estimation via cargo-contract dry-run
let output = call!(env, "flip");
let rs = Deserializer::from_slice(&output.stdout);
let gas_consumed = json_get!(rs["gas_consumed"]).to_owned();
let half_weight_consumed = serde_json::from_value::<Weight>(gas_consumed)
.map(|x| x.div(2))
.map(SubstrateWeight::from)
.unwrap();
// (Flipper is still at thdeployed with `false` state)
// Make ETH RPC request (to flip it to `true`)
// Insufficient gas_limit (half of estimated)
let rs = rpc_rq!(env,
{
"jsonrpc": "2.0",
"method": "eth_sendTransaction",
"params": [{
"from": BALTATHAR_ADDRESS,
"to": &env.contract_address(),
"data": encode!(FLIPPER_PATH, "flip"),
"gas": half_weight_consumed,
},
"latest"],
"id": 1
});
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
let _tx_hash = extract_result!(&json);
// Wait until tx fails (or timeout)
let _ = &env.wait_for_event("system.ExtrinsicFailed", 2).await;
// Check state
let output = call!(env, "get");
let rs = Deserializer::from_slice(&output.stdout);
// Should stay flipped to `false` as tx should have failed with insuficcient gas
assert!(!json_get!(rs["data"]["Tuple"]["values"][0]["Bool"])
.as_bool()
.expect("can't parse cargo contract output"));
}
#[tokio::test]
async fn eth_call() {
// Spawn node and deploy contract
let mut env: Env<PolkadotConfig> =
prepare_node_and_contract!(ONCE, FLIPPER_PATH, vec!["false"]);
// (Flipper is deployed with `false` state)
// Make eth_call rpc request to get() flipper state
let rq = json!({
"jsonrpc": "2.0",
"method": "eth_call",
"params": [{
"from": ALITH_ADDRESS,
"to": &env.contract_address(),
"data": encode!(FLIPPER_PATH, "get"),
"gas": SubstrateWeight::max()
},
"latest"],
"id": 0
});
let rs = rpc_rq!(env, rq);
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
// Should return `false` as flipper state
let result = extract_result!(&json);
assert_eq!(*result, "0x00000000080000");
// Flip it via contract call
let _ = call!(env, "flip", vec![], true);
// Wait until tx gets executed
let _ = &env.wait_for_event("contracts.Called", 2).await;
// Make eth_call rpc request again
let rs = rpc_rq!(env, rq);
let json = to_json_val!(rs);
ensure_no_err!(&json);
// Should now return `true` as flipper state
let result = extract_result!(&json);
assert_eq!(*result, "0x00000000080001");
}
#[tokio::test]
async fn eth_estimateGas() {
// Spawn node and deploy contract
let env: Env<PolkadotConfig> = prepare_node_and_contract!(ONCE, FLIPPER_PATH, vec!["false"]);
// Retrieve gas estimation via cargo-contract dry-run
let output = call!(env, "flip");
let rs = Deserializer::from_slice(&output.stdout);
let gas_consumed = json_get!(rs["gas_consumed"]).to_owned();
let weight = serde_json::from_value::<Weight>(gas_consumed)
.map(SubstrateWeight::from)
.unwrap();
let weight_str_expected = weight.serialize(Serializer).unwrap().to_owned();
// Make ETH rpc request
let rq = json!({
"jsonrpc": "2.0",
"method": "eth_estimateGas",
"params": [{
"from": ALITH_ADDRESS,
"to": &env.contract_address(),
"data": encode!(FLIPPER_PATH, "flip")
},
"latest"],
"id": 0
});
let rs = rpc_rq!(env, rq);
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
// Should return gas spent value equal to the one retrieved above
let weight_str_returned = extract_result!(&json);
assert_eq!(weight_str_returned, &weight_str_expected);
}
#[tokio::test]
async fn eth_accounts() {
// Spawn node with Baltathar key in keystore
// (we don't need a contract deployment here, but so far this is the only test as such,
// hence we use the same helper with a contract deployed)
let env: Env<PolkadotConfig> =
prepare_node_and_contract!(ONCE, FLIPPER_PATH, vec!["false"], BALTATHAR_KEY);
// Make ETH rpc request
let rq = json!({
"jsonrpc": "2.0",
"method": "eth_accounts",
"params": [],
"id": 0
});
let rs = rpc_rq!(env, rq);
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
// Should return vec with Baltathar address
let accounts_returned = extract_result!(&json, as_array)
.iter()
.map(|v| v.as_str().expect("Can't parse output as array of strings!"))
.collect::<Vec<_>>();
assert_eq!(accounts_returned, vec![BALTATHAR_ADDRESS.to_lowercase()]);
}
#[tokio::test]
async fn eth_getBlockTransactionCountByNumber() {
// Spawn node
let mut env: Env<PolkadotConfig> = prepare_node!(BALTATHAR_KEY);
// Make ETH RPC request to make up some extrinsic,
// e.g. let's send some balance to ALITH
let rs = rpc_rq!(env,
{
"jsonrpc": "2.0",
"method": "eth_sendTransaction",
"params": [{
"from": BALTATHAR_ADDRESS,
"to": ALITH_ADDRESS,
"value": "17500",
"gas": SubstrateWeight::max()
},
"latest"],
"id": 0
});
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
let _tx_hash = extract_result!(&json);
// Wait until 1 block is finalized
let _ = &env.wait_for_block_number(1).await;
// Request tx_count for block n, and assert_eq it to m
let check_tx_count = |n: usize, m: Option<u64>| {
// Make ETH PRC request to check tx count in block n
let rs = rpc_rq!(env,
{
"jsonrpc": "2.0",
"method": "eth_getBlockTransactionCountByNumber",
"params": [n],
"id": n + 1,
});
// Handle response
let json = to_json_val!(rs);
ensure_no_err!(&json);
let tx_count_returned = json["result"].to_owned();
let tx_count = m.map(U256::from);
let tx_count_expected = tx_count.serialize(Serializer).unwrap().to_owned();
assert_eq!(tx_count_returned, tx_count_expected);
};
// Test cases for several blocks
let cases = [
(0, Some(0)), // no tx in genesis block
(1, Some(2)), // 1 timestamp.set + 1 our tx
(100, None), // a future block, hence None
];
for (n, m) in cases {
check_tx_count(n, m)
}
}