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let mut canon_chain = ChainGenerator::default();
let mut finalizer = BlockFinalizer::default();
let genesis = canon_chain.generate(&mut finalizer).unwrap();
let mut fork = canon_chain.fork(1);
let mut fork_finalizer = finalizer.fork();
let b1 = fork.with_bloom(bloom_b1.clone()).generate(&mut fork_finalizer).unwrap();
let b2 = fork.with_bloom(bloom_b2.clone()).generate(&mut fork_finalizer).unwrap();
let b3 = fork.with_bloom(bloom_ba.clone()).generate(&mut fork_finalizer).unwrap();
let b1a = canon_chain.with_bloom(bloom_ba.clone()).generate(&mut finalizer).unwrap();
let b2a = canon_chain.with_bloom(bloom_ba.clone()).generate(&mut finalizer).unwrap();
let bc = BlockChain::new(BlockChainConfig::default(), &genesis, temp.as_path());
let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
assert_eq!(blocks_b1, vec![]);
assert_eq!(blocks_b2, vec![]);
bc.insert_block(&b1, vec![]);
let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
assert_eq!(blocks_b1, vec![1]);
assert_eq!(blocks_b2, vec![]);
bc.insert_block(&b2, vec![]);
let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
assert_eq!(blocks_b1, vec![1]);
assert_eq!(blocks_b2, vec![2]);
// hasn't been forked yet
bc.insert_block(&b1a, vec![]);
let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
let blocks_ba = bc.blocks_with_bloom(&bloom_ba, 0, 5);
assert_eq!(blocks_b1, vec![1]);
assert_eq!(blocks_b2, vec![2]);
assert_eq!(blocks_ba, vec![]);
// fork has happend
bc.insert_block(&b2a, vec![]);
let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
let blocks_ba = bc.blocks_with_bloom(&bloom_ba, 0, 5);
assert_eq!(blocks_b1, vec![]);
assert_eq!(blocks_b2, vec![]);
assert_eq!(blocks_ba, vec![1, 2]);
// fork back
bc.insert_block(&b3, vec![]);
let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
let blocks_ba = bc.blocks_with_bloom(&bloom_ba, 0, 5);
assert_eq!(blocks_b1, vec![1]);
assert_eq!(blocks_b2, vec![2]);
assert_eq!(blocks_ba, vec![3]);