[ruby/reline] The config file must accept any character encoding

In Japan, so many programmers used EUC-JP to write text files that contain
Japanese. Many .inputrc files which contain EUC-JP are still being copied and
used. This commit supports the whole encoding of what user set including UTF-8.

ref. https://github.com/ruby/reline/pull/280

https://github.com/ruby/reline/commit/0b45022e16

1 files changed, 14 insertions, 3 deletions

diff --git a/test/reline/test_config.rb b/test/reline/test_config.rb
index 2ada00c154..56fc787b65 100644
--- a/test/reline/test_config.rb
+++ b/test/reline/test_config.rb
@@ -286,14 +286,25 @@ class Reline::Config::Test < Reline::TestCase
     ENV['INPUTRC'] = inputrc_backup
   end
 
-  def test_inputrc_with_utf
+  def test_inputrc_with_utf8
+    # This file is encoded by UTF-8 so this heredoc string is also UTF-8.
     @config.read_lines(<<~'LINES'.lines)
       set editing-mode vi
       set vi-cmd-mode-string 🍸
       set vi-ins-mode-string 🍶
     LINES
-    assert_equal @config.vi_cmd_mode_string, "🍸"
-    assert_equal @config.vi_ins_mode_string, "🍶"
+    assert_equal '🍸', @config.vi_cmd_mode_string
+    assert_equal '🍶', @config.vi_ins_mode_string
+  end
+
+  def test_inputrc_with_eucjp
+    @config.read_lines(<<~"LINES".encode(Encoding::EUC_JP).lines)
+      set editing-mode vi
+      set vi-cmd-mode-string ｫｬｯ
+      set vi-ins-mode-string 能
+    LINES
+    assert_equal 'ｫｬｯ'.encode(Reline.encoding_system_needs), @config.vi_cmd_mode_string
+    assert_equal '能'.encode(Reline.encoding_system_needs), @config.vi_ins_mode_string
   end
 
   def test_xdg_config_home