test_rubyoptions.rb: locale name

* test/ruby/test_rubyoptions.rb: try locale encoding name.
  [ruby-core:67109] [Bug #10643]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49091 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Thu Jan  1 17:50:52 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_rubyoptions.rb: try locale encoding name.
+	  [ruby-core:67109] [Bug #10643]
+
 Thu Jan  1 11:07:12 2015  Eric Wong  <e@80x24.org>
 
 	* symbol.c (rb_gc_free_dsymbol): delete from global fstr hash

test/ruby/test_rubyoptions.rb

@@ -712,8 +712,15 @@ class TestRubyOptions < Test::Unit::TestCase
 
     def test_command_line_progname_nonascii
       bug10555 = '[ruby-dev:48752] [Bug #10555]'
-      name = "\u{3042}.rb"
-      expected = name.encode("locale") rescue "?.rb"
+      name = expected = nil
+      unless (0x80..0x10000).any? {|c|
+               name = c.chr(Encoding::UTF_8)
+               expected = name.encode("locale") rescue nil
+             }
+        skip "can't make locale name"
+      end
+      name << ".rb"
+      expected << ".rb"
       with_tmpchdir do |dir|
         open(name, "w") {|f| f.puts "puts File.basename($0)"}
         assert_in_out_err([name], "", [expected], [],