Added tests for repository

lib/repos/tree.rb

@@ -20,14 +20,14 @@ module Pruning
         with_retries(max_tries: NUMBER_OF_RETRIES, rescue: [Pruning::Exceptions::ServerErrorOnOrigin]) do
           begin
             resp = @client.get(url(name))
-              rescue RestClient::ExceptionWithResponse => e
-                raise Pruning::Exceptions::ServerErrorOnOrigin if e.response.code != 404
-                raise Pruning::Exceptions::OriginCannotFindTheResource
-              end
-
-            return JSON(resp.body)
+          rescue RestClient::ExceptionWithResponse => e
+            raise Pruning::Exceptions::ServerErrorOnOrigin if e.response.code != 404
+            raise Pruning::Exceptions::OriginCannotFindTheResource
           end
-          raise Pruning::Exceptions::UnexpectedError
+          
+          return JSON(resp.body)
+        end
+        raise Pruning::Exceptions::UnexpectedError
       end