FEATURE: consider SVG as an image when authorized

spec/fixtures/images/image.svg

@@ -0,0 +1,3 @@
+<svg width="100" height="50">
+  <text x="25" y="25">Discourse</text>
+</svg>

spec/models/upload_spec.rb

@@ -15,11 +15,15 @@ describe Upload do
   let(:user_id) { 1 }
   let(:url) { "http://domain.com" }
 
-  let(:image) { file_from_fixtures("logo.png") }
   let(:image_filename) { "logo.png" }
+  let(:image) { file_from_fixtures(image_filename) }
   let(:image_filesize) { File.size(image) }
   let(:image_sha1) { Digest::SHA1.file(image).hexdigest }
 
+  let(:image_svg_filename) { "image.svg" }
+  let(:image_svg) { file_from_fixtures(image_svg_filename) }
+  let(:image_svg_filesize) { File.size(image_svg) }
+
   let(:attachment_path) { __FILE__ }
   let(:attachment) { File.new(attachment_path) }
   let(:attachment_filename) { File.basename(attachment_path) }
@@ -96,6 +100,27 @@ describe Upload do
       upload.url.should == url
     end
 
+    context "when svg is authorized" do
+
+      before { SiteSetting.stubs(:authorized_extensions).returns("svg") }
+
+      it "consider SVG as an image" do
+        store = {}
+        Discourse.expects(:store).returns(store)
+        store.expects(:store_upload).returns(url)
+
+        upload = Upload.create_for(user_id, image_svg, image_svg_filename, image_svg_filesize)
+
+        upload.user_id.should == user_id
+        upload.original_filename.should == image_svg_filename
+        upload.filesize.should == image_svg_filesize
+        upload.width.should == 100
+        upload.height.should == 50
+        upload.url.should == url
+      end
+
+    end
+
   end
 
   context ".get_from_url" do