Test coverage for filenames with multiple periods

2254 coverage (#2395)

* f(x): default to Paperclip::ContentTypeDetector

* fix: failures

* spec: cover consecutive periods

* fix: hound

* fix: hound

spec/paperclip/io_adapters/uri_adapter_spec.rb

@@ -62,7 +62,7 @@ describe Paperclip::UriAdapter do
       assert_equal 'image/png', @subject.content_type
     end
 
-    it 'accepts an orgiginal_filename' do
+    it "accepts an original_filename" do
       @subject.original_filename = 'image.png'
       assert_equal 'image.png', @subject.original_filename
     end
@@ -122,6 +122,14 @@ describe Paperclip::UriAdapter do
     it "returns a file name" do
       assert_equal file_name, @subject.original_filename
     end
+
+    context "when file name has consecutive periods" do
+      let(:file_name) { "test_document..pdf" }
+
+      it "returns a file name" do
+        assert_equal file_name, @subject.original_filename
+      end
+    end
   end
 
   context "a url with restricted characters in the filename" do