Preserve root URL paths.

Assisted-By: devx/cbdeae41-9308-4071-ad53-58cd92db2946

Author: samuel-williams-shopify

lib/utopia/path.rb

@@ -224,6 +224,11 @@ def to_str
 		# Encode this application path as a URL path.
 		# @returns [Protocol::URL::Path] The encoded URL path.
 		def to_url_path
+			# Preserve Utopia's compact representation of the absolute root:
+			if @components == [""]
+				return Protocol::URL::Path[SEPARATOR]
+			end
+			
 			return Protocol::URL::Path.for(
 				@components,
 				encoding: Protocol::URL::Encoding::System,

test/utopia/path.rb

@@ -140,6 +140,12 @@
 	end
 
 	with "#to_url_path" do
+		it "preserves the absolute root" do
+			path = Utopia::Path.root
+			
+			expect(path.to_url_path).to be == Protocol::URL::Path["/"]
+		end
+		
 		it "encodes application path components" do
 			path = Utopia::Path.new(["", "some path"])