Use helper method here.

1 files changed, 5 insertions, 6 deletions

diff --git a/actionpack/test/template/template_test.rb b/actionpack/test/template/template_test.rb
index 36fc9ccf91..c7c33af670 100644
--- a/actionpack/test/template/template_test.rb
+++ b/actionpack/test/template/template_test.rb
@@ -83,12 +83,11 @@ class TestERBTemplate < ActiveSupport::TestCase
     # is set to something other than UTF-8, we don't
     # get any errors and get back a UTF-8 String.
     def test_default_external_works
-      Encoding.default_external = "ISO-8859-1"
-      @template = new_template("hello \xFCmlat")
-      assert_equal Encoding::UTF_8, render.encoding
-      assert_equal "hello \u{fc}mlat", render
-    ensure
-      Encoding.default_external = "UTF-8"
+      with_external_encoding "ISO-8859-1" do
+        @template = new_template("hello \xFCmlat")
+        assert_equal Encoding::UTF_8, render.encoding
+        assert_equal "hello \u{fc}mlat", render
+      end
     end
 
     def test_encoding_can_be_specified_with_magic_comment