def test_output_stream():
stream = java.io.ByteArrayOutputStream()
out = OutputStream(cast(java.io.OutputStream, stream))
print("Hello, World!", file=out)
out.flush()
print(stream.toString(), file=sys.stderr)
assert stream.toString() == "Hello, World!\n"
def test_input_stream():
stream = java.io.ByteArrayInputStream("Infinity, and beyond!\n".encode())
inp = InputStream(cast(java.io.InputStream, stream))
lines = list(inp)
assert lines == ["Infinity, and beyond!"]
