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working blockhain sequence generator

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This commit is contained in:
Nikolay Volf 2016-01-27 21:31:14 +04:00
parent 5818db9d0e
commit 6d69906159
2 changed files with 24 additions and 5 deletions
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6
src/blockchain.rs
View File

@ -765,8 +765,8 @@ mod tests {
}
#[test]
fn can_consist_of_random_blocks() {
let bc = generate_dummy_blockchain(100);
assert_eq!(bc.best_block_hash(), 0);
fn can_contain_arbitrary_block_sequence() {
let bc = generate_dummy_blockchain(50);
assert_eq!(bc.best_block_number(), 49);
}
}

23
src/tests/helpers.rs
View File

@ -45,6 +45,18 @@ pub fn create_test_block(header: &Header) -> Bytes {
rlp.out()
}
fn create_unverifiable_block(order: usize, parent_hash: H256) -> Bytes {
let mut header = Header::new();
header.gas_limit = x!(0);
header.difficulty = x!(order * 100);
header.timestamp = (order * 10) as u64;
header.number = order as u64;
header.parent_hash = parent_hash;
header.state_root = H256::from_str("0000000000000000000000000000000000000000000000000000000000000000").unwrap();
create_test_block(&header)
}
pub fn generate_dummy_client(block_number: usize) -> Arc<Client> {
let dir = RandomTempPath::new();
@ -82,7 +94,14 @@ pub fn generate_dummy_client(block_number: usize) -> Arc<Client> {
pub fn generate_dummy_blockchain(block_number: usize) -> BlockChain {
let temp = RandomTempPath::new();
let genesis = "fffffff".from_hex().unwrap();
let bc = BlockChain::new(&genesis, temp.as_path());
let bc = BlockChain::new(
&create_unverifiable_block(
0,
H256::from_str("0000000000000000000000000000000000000000000000000000000000000000").unwrap()),
temp.as_path());
for block_order in 1..block_number {
bc.insert_block(&create_unverifiable_block(block_order, bc.best_block_hash()));
}
bc
}