From 3aa62b455caf4926fd203878eca71b5281f10edf Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@ruby-lang.org>
Date: Fri, 12 Nov 2021 16:19:30 +0900
Subject: [PATCH] test/io/console/test_io_console.rb: add debug code

to debug the following failure

http://ci.rvm.jp/results/trunk-test@ruby-sky1/3708240
```
/tmp/ruby/v3/src/trunk-test/test/io/console/test_io_console.rb:10:in `===': incompatible encoding regexp match (US-ASCII regexp with UTF-16BE string) (Encoding::CompatibilityError)
	/tmp/ruby/v3/src/trunk-test/test/io/console/test_io_console.rb:10:in `each'
	/tmp/ruby/v3/src/trunk-test/test/io/console/test_io_console.rb:10:in `grep'
	/tmp/ruby/v3/src/trunk-test/test/io/console/test_io_console.rb:10:in `<class:TestIO_Console>'
	/tmp/ruby/v3/src/trunk-test/test/io/console/test_io_console.rb:9:in `<top (required)>'
	<internal:/tmp/ruby/v3/src/trunk-test/lib/rubygems/core_ext/kernel_require.rb>:85:in `require'
	<internal:/tmp/ruby/v3/src/trunk-test/lib/rubygems/core_ext/kernel_require.rb>:85:in `require'
	/tmp/ruby/v3/src/trunk-test/tool/lib/test/unit/parallel.rb:122:in `run'
	/tmp/ruby/v3/src/trunk-test/tool/lib/test/unit/parallel.rb:211:in `<main>'
running file: /tmp/ruby/v3/src/trunk-test/test/io/console/test_io_console.rb
```
---
 test/io/console/test_io_console.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/test/io/console/test_io_console.rb b/test/io/console/test_io_console.rb
index d119ec23e0..00727a14b4 100644
--- a/test/io/console/test_io_console.rb
+++ b/test/io/console/test_io_console.rb
@@ -7,7 +7,12 @@ rescue LoadError
 end
 
 class TestIO_Console < Test::Unit::TestCase
-  PATHS = $LOADED_FEATURES.grep(%r"/io/console(?:\.#{RbConfig::CONFIG['DLEXT']}|\.rb|/\w+\.rb)\z") {$`}
+  begin
+    PATHS = $LOADED_FEATURES.grep(%r"/io/console(?:\.#{RbConfig::CONFIG['DLEXT']}|\.rb|/\w+\.rb)\z") {$`}
+  rescue Encoding::CompatibilityError
+    p $LOADED_FEATURES
+    raise
+  end
   PATHS.uniq!
 
   # FreeBSD seems to hang on TTOU when running parallel tests