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Verify DeflateEncoder::with_buffer_size#387

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404Setup merged 1 commit intomainfrom
test/stream-buffer-size-4127471986625588918
Feb 24, 2026
Merged

Verify DeflateEncoder::with_buffer_size#387
404Setup merged 1 commit intomainfrom
test/stream-buffer-size-4127471986625588918

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  • Added tests/buffer_size_test.rs to verify DeflateEncoder flush behavior with custom buffer sizes.
  • Fixed a bug in compress_loop in src/compress/mod.rs where empty-input Finish blocks were incorrectly flagged as InsufficientSpace due to ignoring bit-level writes.
  • Verified that DeflateEncoder correctly flushes to the underlying writer when the buffer limit is exceeded.

PR created automatically by Jules for task 4127471986625588918 started by @404Setup

Added `tests/buffer_size_test.rs` to verify that `DeflateEncoder` flushes data when the internal buffer exceeds the configured size.

Fixed a bug in `src/compress/mod.rs` where `compress_loop` would return `InsufficientSpace` for empty inputs with `FlushMode::Finish` if the compressor wrote only bits (e.g., EOB marker) without advancing the byte output index. The fix ensures that both byte index and bit count are checked to detect progress.

This ensures reliable stream termination and flushing behavior for custom buffer configurations.

Co-authored-by: 404Setup <[email protected]>
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@404Setup 404Setup merged commit f8d9250 into main Feb 24, 2026
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@404Setup 404Setup deleted the test/stream-buffer-size-4127471986625588918 branch February 24, 2026 14:04
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