assertions.rb: set default internal encoding

* test/lib/test/unit/assertions.rb (assert_raise_with_message):
  set default internal encoding to the excpected message, which
  affects String#inspect in messages.

* test/lib/test/unit/assertions.rb (assert_warning): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54522 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 3 deletions

diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb
index ae46965bcd..801a6fe872 100644
--- a/test/ruby/test_rational.rb
+++ b/test/ruby/test_rational.rb
@@ -112,9 +112,7 @@ class Rational_Test < Test::Unit::TestCase
     assert_raise(TypeError){Rational(nil)}
     assert_raise(ArgumentError){Rational('')}
     assert_raise_with_message(ArgumentError, /\u{221a 2668}/) {
-      EnvUtil.with_default_external(Encoding::UTF_8) {
-        Rational("\u{221a 2668}")
-      }
+      Rational("\u{221a 2668}")
     }
     assert_raise(TypeError){Rational(Object.new)}
     assert_raise(ArgumentError){Rational()}