diff --git a/test/ruby/test_big5.rb b/test/ruby/enc/test_big5.rb
similarity index 100%
rename from test/ruby/test_big5.rb
rename to test/ruby/enc/test_big5.rb
diff --git a/test/ruby/test_cp949.rb b/test/ruby/enc/test_cp949.rb
similarity index 100%
rename from test/ruby/test_cp949.rb
rename to test/ruby/enc/test_cp949.rb
diff --git a/test/ruby/test_euc_jp.rb b/test/ruby/enc/test_euc_jp.rb
similarity index 100%
rename from test/ruby/test_euc_jp.rb
rename to test/ruby/enc/test_euc_jp.rb
diff --git a/test/ruby/test_euc_kr.rb b/test/ruby/enc/test_euc_kr.rb
similarity index 100%
rename from test/ruby/test_euc_kr.rb
rename to test/ruby/enc/test_euc_kr.rb
diff --git a/test/ruby/test_euc_tw.rb b/test/ruby/enc/test_euc_tw.rb
similarity index 100%
rename from test/ruby/test_euc_tw.rb
rename to test/ruby/enc/test_euc_tw.rb
diff --git a/test/ruby/test_gb18030.rb b/test/ruby/enc/test_gb18030.rb
similarity index 100%
rename from test/ruby/test_gb18030.rb
rename to test/ruby/enc/test_gb18030.rb
diff --git a/test/ruby/test_gbk.rb b/test/ruby/enc/test_gbk.rb
similarity index 100%
rename from test/ruby/test_gbk.rb
rename to test/ruby/enc/test_gbk.rb
diff --git a/test/ruby/test_iso_8859.rb b/test/ruby/enc/test_iso_8859.rb
similarity index 100%
rename from test/ruby/test_iso_8859.rb
rename to test/ruby/enc/test_iso_8859.rb
diff --git a/test/ruby/test_shift_jis.rb b/test/ruby/enc/test_shift_jis.rb
similarity index 100%
rename from test/ruby/test_shift_jis.rb
rename to test/ruby/enc/test_shift_jis.rb
diff --git a/test/ruby/test_utf16.rb b/test/ruby/enc/test_utf16.rb
similarity index 100%
rename from test/ruby/test_utf16.rb
rename to test/ruby/enc/test_utf16.rb
diff --git a/test/ruby/test_utf32.rb b/test/ruby/enc/test_utf32.rb
similarity index 100%
rename from test/ruby/test_utf32.rb
rename to test/ruby/enc/test_utf32.rb
diff --git a/test/ruby/test_windows_1251.rb b/test/ruby/enc/test_windows_1251.rb
similarity index 100%
rename from test/ruby/test_windows_1251.rb
rename to test/ruby/enc/test_windows_1251.rb