REFACTOR: upload workflow creation into UploadCreator

- Automatically convert large-ish PNG/BMP to JPEG
- Updated fast_image to latest version

spec/models/upload_spec.rb

@@ -46,91 +46,6 @@ describe Upload do
 
   end
 
-  context "#create_for" do
-
-    before do
-      Upload.stubs(:fix_image_orientation)
-      ImageOptim.any_instance.stubs(:optimize_image!)
-    end
-
-    it "does not create another upload if it already exists" do
-      Upload.expects(:find_by).with(sha1: image_sha1).returns(upload)
-      Upload.expects(:save).never
-      expect(Upload.create_for(user_id, image, image_filename, image_filesize)).to eq(upload)
-    end
-
-    it "ensures images isn't huge before processing it" do
-      Upload.expects(:fix_image_orientation).never
-      upload = Upload.create_for(user_id, huge_image, huge_image_filename, huge_image_filesize)
-      expect(upload.errors.size).to be > 0
-    end
-
-    it "fix image orientation" do
-      Upload.expects(:fix_image_orientation).with(image.path)
-      Upload.create_for(user_id, image, image_filename, image_filesize)
-    end
-
-    it "computes width & height for images" do
-      ImageSizer.expects(:resize)
-      Upload.create_for(user_id, image, image_filename, image_filesize)
-    end
-
-    it "does not compute width & height for non-image" do
-      FastImage.any_instance.expects(:size).never
-      upload = Upload.create_for(user_id, attachment, attachment_filename, attachment_filesize)
-      expect(upload.errors.size).to be > 0
-    end
-
-    it "generates an error when the image is too large" do
-      SiteSetting.stubs(:max_image_size_kb).returns(1)
-      upload = Upload.create_for(user_id, image, image_filename, image_filesize)
-      expect(upload.errors.size).to be > 0
-    end
-
-    it "generates an error when the attachment is too large" do
-      SiteSetting.stubs(:max_attachment_size_kb).returns(1)
-      upload = Upload.create_for(user_id, attachment, attachment_filename, attachment_filesize)
-      expect(upload.errors.size).to be > 0
-    end
-
-    it "saves proper information" do
-      store = {}
-      Discourse.expects(:store).returns(store)
-      store.expects(:store_upload).returns(url)
-
-      upload = Upload.create_for(user_id, image, image_filename, image_filesize)
-
-      expect(upload.user_id).to eq(user_id)
-      expect(upload.original_filename).to eq(image_filename)
-      expect(upload.filesize).to eq(image_filesize)
-      expect(upload.width).to eq(244)
-      expect(upload.height).to eq(66)
-      expect(upload.url).to eq(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)
-
-        expect(upload.user_id).to eq(user_id)
-        expect(upload.original_filename).to eq(image_svg_filename)
-        expect(upload.filesize).to eq(image_svg_filesize)
-        expect(upload.width).to eq(100)
-        expect(upload.height).to eq(50)
-        expect(upload.url).to eq(url)
-      end
-
-    end
-
-  end
-
   context ".get_from_url" do
     let(:url) { "/uploads/default/original/3X/1/0/10f73034616a796dfd70177dc54b6def44c4ba6f.png" }
     let(:upload) { Fabricate(:upload, url: url) }