60 lines
1.8 KiB
Rust
60 lines
1.8 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// OpenEthereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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use blockchain::BlockProvider;
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use test_helpers::{
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generate_dummy_blockchain, generate_dummy_blockchain_with_extra,
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generate_dummy_empty_blockchain,
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};
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#[test]
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fn can_contain_arbitrary_block_sequence() {
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let bc = generate_dummy_blockchain(50);
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assert_eq!(bc.best_block_number(), 49);
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}
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#[test]
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fn can_collect_garbage() {
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let bc = generate_dummy_blockchain(3000);
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assert_eq!(bc.best_block_number(), 2999);
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let best_hash = bc.best_block_hash();
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let mut block_header = bc.block_header_data(&best_hash);
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while !block_header.is_none() {
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block_header = bc.block_header_data(&block_header.unwrap().parent_hash());
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}
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assert!(bc.cache_size().blocks > 1024 * 1024);
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for _ in 0..2 {
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bc.collect_garbage();
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}
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assert!(bc.cache_size().blocks < 1024 * 1024);
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}
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#[test]
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fn can_contain_arbitrary_block_sequence_with_extra() {
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let bc = generate_dummy_blockchain_with_extra(25);
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assert_eq!(bc.best_block_number(), 24);
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}
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#[test]
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fn can_contain_only_genesis_block() {
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let bc = generate_dummy_empty_blockchain();
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assert_eq!(bc.best_block_number(), 0);
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}
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