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/-ext-/struct/test_member.rb b/test/-ext-/struct/test_member.rb
index 5ee0adcf67..94735cacb8 100644
--- a/test/-ext-/struct/test_member.rb
+++ b/test/-ext-/struct/test_member.rb
@@ -9,8 +9,6 @@ class  Bug::Struct::Test_Member < Test::Unit::TestCase
     s = S.new(1)
     assert_equal(1, s.get(:a))
     assert_raise_with_message(NameError, /is not a struct member/) {s.get(:b)}
-    EnvUtil.with_default_external(Encoding::UTF_8) do
-      assert_raise_with_message(NameError, /\u{3042}/) {s.get(:"\u{3042}")}
-    end
+    assert_raise_with_message(NameError, /\u{3042}/) {s.get(:"\u{3042}")}
   end
 end