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Add compression exit function clause #4

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Merged
xluo98 merged 1 commit into from
Dec 4, 2025
Merged

Add compression exit function clause #4

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4 changes: 4 additions & 0 deletions lib/z_stream/lz4.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,10 @@ defmodule ZStream.LZ4 do
{:erlang.iolist_to_iovec(finish), ref}
end

defp do_compress_exit({:start, ref}) do
:lz4f.compress_end(ref)
end

defp do_compress_exit(ref) do
:lz4f.compress_end(ref)
end
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17 changes: 17 additions & 0 deletions test/z_stream/lz4_test.exs
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Expand Up @@ -30,4 +30,21 @@ defmodule ZStream.LZ4Test do

assert Enum.into(stream, "") == ""
end

test "compress empty stream" do
empty_data = []
stream = ZStream.compress(empty_data, LZ4)
result = Enum.into(stream, [])

assert [_ | _] = result
end

test "decompress empty stream" do
empty_data = []
compressed = ZStream.compress(empty_data, LZ4)
compressed_bytes = Enum.into(compressed, [])
decompressed = ZStream.decompress(compressed_bytes, LZ4)

assert Enum.into(decompressed, "") == ""
end
end