openethereum/src/tests/client.rs

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use client::{BlockChainClient,Client};
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use std::env;
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use super::test_common::*;
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use std::path::PathBuf;
use spec::*;
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use super::helpers::*;
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#[cfg(test)]
fn get_good_dummy_block() -> Bytes {
let mut block_header = Header::new();
let test_spec = get_test_spec();
let test_engine = test_spec.to_engine().unwrap();
block_header.gas_limit = decode(test_engine.spec().engine_params.get("minGasLimit").unwrap());
block_header.difficulty = decode(test_engine.spec().engine_params.get("minimumDifficulty").unwrap());
block_header.timestamp = 40;
block_header.number = 1;
block_header.parent_hash = test_engine.spec().genesis_header().hash();
block_header.state_root = test_engine.spec().genesis_header().state_root;
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create_test_block(&block_header)
}
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#[cfg(test)]
fn get_bad_state_dummy_block() -> Bytes {
let mut block_header = Header::new();
let test_spec = get_test_spec();
let test_engine = test_spec.to_engine().unwrap();
block_header.gas_limit = decode(test_engine.spec().engine_params.get("minGasLimit").unwrap());
block_header.difficulty = decode(test_engine.spec().engine_params.get("minimumDifficulty").unwrap());
block_header.timestamp = 40;
block_header.number = 1;
block_header.parent_hash = test_engine.spec().genesis_header().hash();
block_header.state_root = x!(0xbad);
create_test_block(&block_header)
}
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#[cfg(test)]
fn create_test_block(header: &Header) -> Bytes {
let mut rlp = RlpStream::new_list(3);
rlp.append(header);
rlp.append_raw(&rlp::EMPTY_LIST_RLP, 1);
rlp.append_raw(&rlp::EMPTY_LIST_RLP, 1);
rlp.out()
}
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#[cfg(test)]
fn get_test_client_with_blocks(blocks: Vec<Bytes>) -> Arc<Client> {
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let client = Client::new(get_test_spec(), &get_random_path(), IoChannel::disconnected()).unwrap();
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for block in &blocks {
if let Err(_) = client.import_block(block.clone()) {
panic!("panic importing block which is well-formed");
}
}
client.flush_queue();
client.import_verified_blocks(&IoChannel::disconnected());
client
}
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#[test]
fn created() {
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let client_result = Client::new(get_test_spec(), &get_random_path(), IoChannel::disconnected());
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assert!(client_result.is_ok());
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}
#[test]
fn imports_from_empty() {
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let client = Client::new(get_test_spec(), &get_random_path(), IoChannel::disconnected()).unwrap();
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client.import_verified_blocks(&IoChannel::disconnected());
client.flush_queue();
}
#[test]
fn imports_good_block() {
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let client = Client::new(get_test_spec(), &get_random_path(), IoChannel::disconnected()).unwrap();
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let good_block = get_good_dummy_block();
if let Err(_) = client.import_block(good_block) {
panic!("error importing block being good by definition");
}
client.flush_queue();
client.import_verified_blocks(&IoChannel::disconnected());
let block = client.block_header_at(1).unwrap();
assert!(!block.is_empty());
}
#[test]
fn query_none_block() {
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let client = Client::new(get_test_spec(), &get_random_path(), IoChannel::disconnected()).unwrap();
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let non_existant = client.block_header_at(188);
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assert!(non_existant.is_none());
}
#[test]
fn query_bad_block() {
let client = get_test_client_with_blocks(vec![get_bad_state_dummy_block()]);
let bad_block:Option<Bytes> = client.block_header_at(1);
assert!(bad_block.is_none());
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}
#[test]
fn returns_chain_info() {
let dummy_block = get_good_dummy_block();
let client = get_test_client_with_blocks(vec![dummy_block.clone()]);
let block = BlockView::new(&dummy_block);
let info = client.chain_info();
assert_eq!(info.best_block_hash, block.header().hash());
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}