lib/terraformer/multi_point.rb in terraformer-0.1.0 vs lib/terraformer/multi_point.rb in terraformer-0.2.0

@@ -7,9 +7,15 @@
       when Point === args[0]
         self.coordinates = args.map &:coordinates
       else
         super *args
       end
+
+      # must be an array of coordinates
+      unless Array === coordinates &&
+             Terraformer::Coordinate === coordinates[0]
+        raise ArgumentError.new 'invalid coordinates for Terraformer::MultiPoint'
+      end
     end
 
     def first_coordinate
       coordinates[0]
     end