* test/ruby/test_io_m17n.rb (test_strip_bom): added.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24032 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Sat Jul 11 14:43:34 2009  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* test/ruby/test_io_m17n.rb (test_strip_bom): added.
+
 Sat Jul 11 07:11:59 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/readline/readline.c (readline_attempted_completion_function):

test/ruby/test_io_m17n.rb

@@ -1691,5 +1691,19 @@ EOT
       assert_equal("\"丂\"".force_encoding("ascii-8bit"), content)
     }
   end
+
+  def test_strip_bom
+    with_tmpdir {
+      text = "\uFEFFa"
+      %w/UTF-8 UTF-16BE UTF-16LE UTF-32BE UTF-32LE/.each do |name|
+        path = '%s-bom.txt' % name
+        content = text.encode(name)
+        generate_file(path, content)
+        result = File.read(path, mode: 'rb:utf-7-bom')
+        assert_equal(content[1].force_encoding("ascii-8bit"),
+                     result.force_encoding("ascii-8bit"))
+      end
+    }
+  end
 end