From 267706c4d6851cbd3533606539cde6e26f1d9367 Mon Sep 17 00:00:00 2001
From: John Benediktsson <mrjbq7@gmail.com>
Date: Wed, 30 Mar 2016 15:19:04 -0700
Subject: [PATCH] io.encodings: add a test that tell doesn't work anymore.

---
 core/io/encodings/encodings-tests.factor | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/core/io/encodings/encodings-tests.factor b/core/io/encodings/encodings-tests.factor
index 1db972d635..c0807d1bff 100644
--- a/core/io/encodings/encodings-tests.factor
+++ b/core/io/encodings/encodings-tests.factor
@@ -99,3 +99,11 @@ unit-test
         "t" read-until
     ] with-byte-reader
 ] unit-test
+
+! shouldn't be able to tell on (underlying) stream of a decoder
+! because it's confusing when you read1 character and tell is
+! greater than 1.
+[
+    "hello world" utf8 encode
+    utf8 [ tell-input ] with-byte-reader
+] must-fail