wire_serialized_transaction_test_data

Wire-format serialized Zcash transaction test data covering v1-v4 transaction formats.

Publishing this data as a standalone, zero-dependency crate on crates.io gives the Zcash ecosystem a stable calibration point. Versions are never yanked and data is never removed, so any crate — whether inside the zaino workspace or maintained by a third party — can pin a known version and trust that its transaction-parsing tests are running against the same reference bytes. Embedding the same data inside each downstream project leads to drift; a shared crate on the registry eliminates that.

Zero-dependency Rust crate providing 26 test vectors across five Zcash transaction eras: Sprout v1, Sprout v2, Overwinter, Sapling, and NU5. The vectors are generated from zingolabs/zcash-test-vectors.

Public interface

All items are exported from the transactions module.

TestVector

pub struct TestVector {
    pub description: &'static str,
    pub version: u32,
    pub lock_time: u32,
    pub expiry_height: u32,
    pub txid: [u8; 32],
    pub is_coinbase: u8,
    pub has_sapling: u8,
    pub has_orchard: u8,
    pub transparent_inputs: usize,
    pub transparent_outputs: usize,
    pub tx: Vec<u8>,
}

TEST_VECTORS

pub static TEST_VECTORS: LazyLock<Vec<TestVector>>

Lazily-initialized vector containing all 26 test vectors.

get_test_vectors()

pub fn get_test_vectors() -> &'static Vec<TestVector>

Returns a reference to TEST_VECTORS.

Usage in zaino

zaino-fetch (direct dev-dependency)

zaino-fetch depends on this crate directly as a dev-dependency:

[dev-dependencies]
wire_serialized_transaction_test_data = { workspace = true }

Its unit tests in zaino-fetch/src/chain/transaction.rs filter vectors by version and feed the raw bytes into FullTransaction::parse_from_slice, then assert that:

• the transaction parses successfully
• the parsed txid matches vector.txid
• the version field is correct
• transparent input/output counts match
• no trailing bytes remain after parsing

zaino-testutils (via zaino-testvectors)

zaino-testutils depends on the in-tree zaino-testvectors crate, which contains the same test vector data as this crate (using lazy_static rather than LazyLock). zaino-testutils re-exports it as a convenience module:

pub mod test_vectors {
    pub use zaino_testvectors::*;
}

The integration test suite (integration-tests/tests/test_vectors.rs) consumes the vectors through this re-export:

use zaino_testutils::test_vectors::transactions::get_test_vectors;

The pre_v4_txs_parsing test iterates over all vectors with version < 4, parses each with FullTransaction::parse_from_slice, and validates version, txid, shielded spend/orchard action presence, and transparent input/output presence.

This crate is the standalone, externally-published replacement for the in-tree zaino-testvectors crate.

License

Apache-2.0