From 9bbfc38bb4ee3a5f66f82a68542518f397bb9897 Mon Sep 17 00:00:00 2001
From: takahashim <maki@rubycolor.org>
Date: Sun, 27 Sep 2015 21:25:06 +0900
Subject: add IO#rewind

---
 test/io.rb | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'test')

diff --git a/test/io.rb b/test/io.rb
index a5ce7e049..a9bdc3e4f 100644
--- a/test/io.rb
+++ b/test/io.rb
@@ -256,6 +256,17 @@ assert('IO#pos=, IO#seek') do
   io.closed?
 end
 
+assert('IO#rewind') do
+  fd = IO.sysopen $mrbtest_io_rfname
+  io = IO.new fd
+  assert_equal 'm', io.getc
+  assert_equal 1, io.pos
+  assert_equal 0, io.rewind
+  assert_equal 0, io.pos
+  io.close
+  io.closed?
+end
+
 assert('IO#gets') do
   fd = IO.sysopen $mrbtest_io_rfname
   io = IO.new fd
-- 
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