* test/ruby/test_dir_m17n.rb: Skip tests with non-UTF-8 encodings

on cygwin. Cygwin can use the Unicode PUA (private use area) to store
  bytes from non-UTF-8 filenames (see
  https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars),
  but we are not supporting this. [Bug #12443]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55453 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Sun Jun 19 16:55:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* test/ruby/test_dir_m17n.rb: Skip tests with non-UTF-8 encodings
+	  on cygwin. Cygwin can use the Unicode PUA (private use area) to store
+	  bytes from non-UTF-8 filenames (see
+	  https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars),
+	  but we are not supporting this. [Bug #12443]
+
 Sun Jun 19 15:01:18 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
 	* localeinit.c: Fix filesystem encoding for cygwin to UTF-8 (see

test/ruby/test_dir_m17n.rb

@@ -21,6 +21,7 @@ class TestDir_M17N < Test::Unit::TestCase
         assert_include(ents, filename)
       EOS
 
+      return if /cygwin/ =~ RUBY_PLATFORM
       assert_separately(%w[-EASCII-8BIT], <<-EOS, :chdir=>dir)
         filename = #{code}.chr('UTF-8').force_encoding("ASCII-8BIT")
         opts = {:encoding => Encoding.default_external} if /mswin|mingw/ =~ RUBY_PLATFORM
@@ -57,6 +58,7 @@ class TestDir_M17N < Test::Unit::TestCase
   end
 
   def test_filename_extutf8_invalid
+    return if /cygwin/ =~ RUBY_PLATFORM
     with_tmpdir {|d|
       assert_separately(%w[-EASCII-8BIT], <<-'EOS', :chdir=>d)
         filename = "\xff".force_encoding("ASCII-8BIT") # invalid byte sequence as UTF-8
@@ -172,6 +174,7 @@ class TestDir_M17N < Test::Unit::TestCase
   ## others
 
   def test_filename_bytes_euc_jp
+    return if /cygwin/ =~ RUBY_PLATFORM
     with_tmpdir {|d|
       assert_separately(%w[-EEUC-JP], <<-'EOS', :chdir=>d)
         filename = "\xA4\xA2".force_encoding("euc-jp")
@@ -188,6 +191,7 @@ class TestDir_M17N < Test::Unit::TestCase
   end
 
   def test_filename_euc_jp
+    return if /cygwin/ =~ RUBY_PLATFORM
     with_tmpdir {|d|
       assert_separately(%w[-EEUC-JP], <<-'EOS', :chdir=>d)
         filename = "\xA4\xA2".force_encoding("euc-jp")
@@ -233,6 +237,7 @@ class TestDir_M17N < Test::Unit::TestCase
   end
 
   def test_filename_ext_euc_jp_and_int_utf_8
+    return if /cygwin/ =~ RUBY_PLATFORM
     with_tmpdir {|d|
       assert_separately(%w[-EEUC-JP], <<-'EOS', :chdir=>d)
         filename = "\xA4\xA2".force_encoding("euc-jp")