From cc22350fa01f2f87b0020b49a0e679f8d1d6dbf4 Mon Sep 17 00:00:00 2001
From: Laurent Sansonetti <lrz@hipbyte.com>
Date: Mon, 22 Oct 2012 13:03:30 +0200
Subject: [PATCH] add test for String#<<

---
 test/test/spec/string_spec.rb | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/test/test/spec/string_spec.rb b/test/test/spec/string_spec.rb
index 8529cd1a..ac65e5fa 100644
--- a/test/test/spec/string_spec.rb
+++ b/test/test/spec/string_spec.rb
@@ -8,3 +8,22 @@ describe "Strings containing null terminators" do
     s.size.should == 3
   end
 end
+
+describe "String#<< with a codepoint" do
+  it "works on ASCII/BINARY strings" do
+    s = ""
+    s.encoding.should == Encoding::UTF_8
+    s << 3
+    s.should == "\x03"
+
+    s.force_encoding 'ASCII-8BIT'
+    s.encoding.should == Encoding::ASCII_8BIT
+    s << 3
+    s.should == "\x03\x03"
+
+    s.force_encoding 'US-ASCII'
+    s.encoding.should == Encoding::ASCII
+    s << 3
+    s.should == "\x03\x03\x03"
+  end
+end