chroe: add testcase for verify_new_client

[EthanYuan]

Add test cases for verify_new_client. The cases test verify_new_client by extracting data from the update tx, and this process can show the log in the spv lib for analysis of the dumped tx. The following fix pr uses this approach:

• fix: the next target for testnet #17

This PR just adds tests and does not affect the main code of the library.

The log looks like this:

ethan@T14s-Gen4:~/projects/cell-studio/ckb-bitcoin-spv$ cargo test --package ckb-bitcoin-spv-verifier --lib -- tests::testnet::testnet_verify_new_client_error --exact --show-output

[2024-05-09T07:32:01Z INFO  ckb_bitcoin_spv_verifier::types::extension::packed] old client is { id: 21, tip: 0x0000000000000013f8286e880929e01248fd44b092aca3e103e92fb030992e06, mmr-root: { headers-range: [2582496, 2588540], work: 0x000000000000000000000000000000000000000000000064f6addc5c12f19430, hash: 0xa82bba5734f6fcd1a54e1e96171769c74180ac045dfae1277cf2bef9fb9df990 } }
[2024-05-09T07:32:01Z INFO  ckb_bitcoin_spv_verifier::types::extension::packed] new client is { id: 21, tip: 0x000000000000f0861e4ff8bf8c7f5689ddd9d959e8d3e867b3d20c200f113696, mmr-root: { headers-range: [2582496, 2588550], work: 0x000000000000000000000000000000000000000000000064fc3bade51f756a11, hash: 0x7a18677bc2aef83159f6c9cee87e43e458f3b3a285b7f458048449643b216a42 } }
[2024-05-09T07:32:01Z DEBUG ckb_bitcoin_spv_verifier::types::extension::packed] update has 10 headers
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x0000000000000013f8286e880929e01248fd44b092aca3e103e92fb030992e06, max height: 2588540
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000000000000686ee6e56aea7aa5cc653da1ae44e17c4ece7137041727afb, max height: 2588541, digest: { headers-range: [2588541, 2588541], work: 0x000000000000000000000000000000000000000000000000058dd175e4e61594, hash: 0x000000000000000686ee6e56aea7aa5cc653da1ae44e17c4ece7137041727afb }
[2024-05-09T07:32:01Z ERROR ckb_bitcoin_spv_verifier::types::extension::packed] failed: invalid difficulty for header-2588542, expect 422451157 but got 486604799
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x00000000c5e34108e82af72092b6f3c82211c90642a05ed8f7a9f4eae305649c, max height: 2588542, digest: { headers-range: [2588542, 2588542], work: 0x0000000000000000000000000000000000000000000000000000000100010001, hash: 0x00000000c5e34108e82af72092b6f3c82211c90642a05ed8f7a9f4eae305649c }
[2024-05-09T07:32:01Z ERROR ckb_bitcoin_spv_verifier::types::extension::packed] failed: invalid difficulty for header-2588543, expect 422451157 but got 486604799
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::utilities::bitcoin] prev-target = 26959535291011309493156476344723991336010898738574164086137773096960
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::utilities::bitcoin] prev-target * 493586 = 13306849186149108207489132533086935987576275464777867354620398871836098560
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::utilities::bitcoin] 13306849186149108207489132533086935987576275464777867354620398871836098560 / 1209600 = 11001032726644434695344851631189596550575624557521385048462631342457
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::utilities::bitcoin] use the calculated target
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000007f31278326e2cf458be3fbc904d4f98f3b348c8f2f3042d590fe2ddd, max height: 2588543, digest: { headers-range: [2588543, 2588543], work: 0x0000000000000000000000000000000000000000000000000000000100010001, hash: 0x000000007f31278326e2cf458be3fbc904d4f98f3b348c8f2f3042d590fe2ddd }
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000000000d6fe7f71089f0317602b5056b0ff9398affe1970a057ca5a2be0, max height: 2588544, digest: { headers-range: [2588544, 2588544], work: 0x00000000000000000000000000000000000000000000000000000002735f649d, hash: 0x000000000000d6fe7f71089f0317602b5056b0ff9398affe1970a057ca5a2be0 }
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000000000fa58f6f1312af7e511cfb6c1c4e83d584afe519c47e1cf29fee9, max height: 2588545, digest: { headers-range: [2588545, 2588545], work: 0x00000000000000000000000000000000000000000000000000000002735f649d, hash: 0x000000000000fa58f6f1312af7e511cfb6c1c4e83d584afe519c47e1cf29fee9 }
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000000000c1d564f02846d8e34eb3c43cb2aadddbbedd2d7c339a6c9ce1d2, max height: 2588546, digest: { headers-range: [2588546, 2588546], work: 0x00000000000000000000000000000000000000000000000000000002735f649d, hash: 0x000000000000c1d564f02846d8e34eb3c43cb2aadddbbedd2d7c339a6c9ce1d2 }
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x00000000000057ea35b3d301b48da2f65204e57d3931dbebc43a7e1ba2599bb2, max height: 2588547, digest: { headers-range: [2588547, 2588547], work: 0x00000000000000000000000000000000000000000000000000000002735f649d, hash: 0x00000000000057ea35b3d301b48da2f65204e57d3931dbebc43a7e1ba2599bb2 }
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000000000b48525b11c9711869c72e268adee108d32c73b510f233c109423, max height: 2588548, digest: { headers-range: [2588548, 2588548], work: 0x00000000000000000000000000000000000000000000000000000002735f649d, hash: 0x000000000000b48525b11c9711869c72e268adee108d32c73b510f233c109423 }
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000000000da8a05b0d82b52f1cd100995a58e029751ea6c1c4ee9cf7aad60, max height: 2588549, digest: { headers-range: [2588549, 2588549], work: 0x00000000000000000000000000000000000000000000000000000002735f649d, hash: 0x000000000000da8a05b0d82b52f1cd100995a58e029751ea6c1c4ee9cf7aad60 }
[2024-05-09T07:32:01Z TRACE ckb_bitcoin_spv_verifier::types::extension::packed] tip block hash: 0x000000000000f0861e4ff8bf8c7f5689ddd9d959e8d3e867b3d20c200f113696, max height: 2588550, digest: { headers-range: [2588550, 2588550], work: 0x00000000000000000000000000000000000000000000000000000002735f649d, hash: 0x000000000000f0861e4ff8bf8c7f5689ddd9d959e8d3e867b3d20c200f113696 }
[2024-05-09T07:32:01Z DEBUG ckb_bitcoin_spv_verifier::types::extension::packed] check MMR root with size: 12101, max-index: 6054
[2024-05-09T07:32:01Z DEBUG ckb_bitcoin_spv_verifier::types::extension::packed] passed: verify MMR proof for headers between 2588541 and 2588550