From bc5532d3542f71d019f9d547b6f5aaf2c28be9bb Mon Sep 17 00:00:00 2001
From: nhz2 <nhz2@cornell.edu>
Date: Thu, 21 Mar 2024 20:30:19 -0400
Subject: [PATCH] fix bug

---
 src/noop.jl       |  2 +-
 test/codecnoop.jl | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/noop.jl b/src/noop.jl
index 143a6e4d..5a8caa53 100644
--- a/src/noop.jl
+++ b/src/noop.jl
@@ -174,7 +174,7 @@ function fillbuffer(stream::NoopStream; eager::Bool = false)
     changemode!(stream, :read)
     buffer = stream.buffer1
     @assert buffer === stream.buffer2
-    if stream.stream isa TranscodingStream && buffer === stream.buffer1
+    if stream.stream isa TranscodingStream && buffer === stream.stream.buffer1
         # Delegate the operation when buffers are shared.
         return fillbuffer(stream.stream, eager = eager)
     end
diff --git a/test/codecnoop.jl b/test/codecnoop.jl
index a83aa57a..1c4a0d77 100644
--- a/test/codecnoop.jl
+++ b/test/codecnoop.jl
@@ -139,6 +139,19 @@
     @test read(stream) == b"foobar"
     close(stream)
 
+    stream = NoopStream(NoopStream(IOBuffer("foobar")); sharedbuf=false)
+    @test read(stream) == b"foobar"
+    close(stream)
+
+    stream = NoopStream(NoopStream(IOBuffer("foobar")); sharedbuf=false)
+    @test map(x->read(stream, UInt8), 1:6) == b"foobar"
+    @test eof(stream)
+    close(stream)
+
+    stream = NoopStream(NoopStream(NoopStream(IOBuffer("foobar")); sharedbuf=false))
+    @test read(stream) == b"foobar"
+    close(stream)
+
     # Two buffers are the same object.
     stream = NoopStream(IOBuffer("foo"))
     @test stream.buffer1 === stream.buffer2