diff --git a/ext/TestExt.jl b/ext/TestExt.jl
index 2c045d4d..cac67dd8 100644
--- a/ext/TestExt.jl
+++ b/ext/TestExt.jl
@@ -97,4 +97,24 @@ function TranscodingStreams.test_chunked_read(Encoder, Decoder)
     finalize(encoder)
 end
 
+function TranscodingStreams.test_chunked_write(Encoder, Decoder)
+    seed!(TEST_RANDOM_SEED)
+    alpha = b"空即是色"
+    encoder = Encoder()
+    initialize(encoder)
+    for _ in 1:500
+        chunks = [rand(alpha, rand(0:100)) for _ in 1:2]
+        data = map(x->transcode(encoder, x), chunks)
+        buffer = IOBuffer()
+        stream = TranscodingStream(Decoder(), buffer, stop_on_end=true)
+        write(stream, vcat(data...))
+        close(stream)
+        ok = true
+        ok &= hash(take!(buffer)) == hash(vcat(chunks...))
+        ok &= buffersize(stream.state.buffer1) == 0
+        Test.@test ok
+    end
+    finalize(encoder)
+end
+
 end # module
diff --git a/test/codecdoubleframe.jl b/test/codecdoubleframe.jl
index 318ef1aa..95151350 100644
--- a/test/codecdoubleframe.jl
+++ b/test/codecdoubleframe.jl
@@ -248,4 +248,5 @@ DoubleFrameDecoderStream(stream::IO; kwargs...) = TranscodingStream(DoubleFrameD
     test_roundtrip_transcode(DoubleFrameEncoder, DoubleFrameDecoder)
     test_roundtrip_fileio(DoubleFrameEncoder, DoubleFrameDecoder)
     test_chunked_read(DoubleFrameEncoder, DoubleFrameDecoder)
+    test_chunked_write(DoubleFrameEncoder, DoubleFrameDecoder)
 end