Add a test for ActiveSupport::Multibyte::Chars.consumes?.

1 files changed, 8 insertions, 1 deletions

diff --git a/activesupport/test/multibyte_chars_test.rb b/activesupport/test/multibyte_chars_test.rb
index 31b8f1b760..5029d2e051 100644
--- a/activesupport/test/multibyte_chars_test.rb
+++ b/activesupport/test/multibyte_chars_test.rb
@@ -29,7 +29,8 @@ class MultibyteCharsTest < Test::Unit::TestCase
   include MultibyteTest
 
   def setup
-    @chars = ActiveSupport::Multibyte::Chars.new UNICODE_STRING
+    @proxy_class = ActiveSupport::Multibyte::Chars
+    @chars = @proxy_class.new UNICODE_STRING
   end
 
   def test_wraps_the_original_string
@@ -70,6 +71,12 @@ class MultibyteCharsTest < Test::Unit::TestCase
     assert_equal 'ab', 'a'.mb_chars << 'b'.mb_chars
   end
 
+  def test_consumes_utf8_strings
+    assert @proxy_class.consumes?(UNICODE_STRING)
+    assert @proxy_class.consumes?(ASCII_STRING)
+    assert !@proxy_class.consumes?(BYTE_STRING)
+  end
+
   if RUBY_VERSION < '1.9'
     def test_concatenation_should_return_a_proxy_class_instance
       assert_equal ActiveSupport::Multibyte.proxy_class, ('a'.mb_chars + 'b').class