qubit-codec 0.12.0

Core codec traits and buffer conversion primitives for Rust
Documentation 
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// =============================================================================
//    Copyright (c) 2026 Haixing Hu.
//
//    SPDX-License-Identifier: Apache-2.0
//
//    Licensed under the Apache License, Version 2.0.
// =============================================================================

use qubit_codec::{
    CodecTranscodeDecoder,
    TranscodeDecodeError,
    TranscodeFailure,
    Transcoder,
};

use crate::common::IdentityCodec;

#[test]
fn test_lifecycle_guard_rejects_double_finish() {
    let mut decoder = CodecTranscodeDecoder::new(IdentityCodec);
    let mut reset_output = [];
    decoder
        .reset(&mut reset_output, 0)
        .expect("initialize stream");

    assert_eq!(Ok(0), decoder.finish(&mut [], 0));
    assert_eq!(
        Err(TranscodeDecodeError::Failure(
            TranscodeFailure::FinishAfterFinish,
        )),
        decoder.finish(&mut [], 0),
    );
}