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-rw-r--r--actionpack/test/dispatch/mime_type_test.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/actionpack/test/dispatch/mime_type_test.rb b/actionpack/test/dispatch/mime_type_test.rb
index 851fb59d51..08fe2127b9 100644
--- a/actionpack/test/dispatch/mime_type_test.rb
+++ b/actionpack/test/dispatch/mime_type_test.rb
@@ -107,8 +107,10 @@ class MimeTypeTest < ActiveSupport::TestCase
# Remove custom Mime::Type instances set in other tests, like Mime::GIF and Mime::IPHONE
types.delete_if { |type| !Mime.const_defined?(type.to_s.upcase) }
+
types.each do |type|
mime = Mime.const_get(type.to_s.upcase)
+ assert mime.respond_to?("#{type}?"), "#{mime.inspect} does not respond to #{type}?"
assert mime.send("#{type}?"), "#{mime.inspect} is not #{type}?"
invalid_types = types - [type]
invalid_types.delete(:html) if Mime::Type.html_types.include?(type)