Allow missing "limit" key in disposal_dict

src/instance.jl

@@ -108,7 +108,11 @@ function load(path::String)::Instance
             # Plant disposal
             if "disposal" in keys(location_dict)
                 for (product_name, disposal_dict) in location_dict["disposal"]
-                    disposal_limit[product_name_to_product[product_name]] = disposal_dict["limit"]
+                    limit = [1e8 for t in 1:T]
+                    if "limit" in keys(disposal_dict)
+                       limit = disposal_dict["limit"]
+                    end
+                    disposal_limit[product_name_to_product[product_name]] = limit
                     disposal_cost[product_name_to_product[product_name]] = disposal_dict["cost"]
                 end
             end

test/instance_test.jl

@@ -64,7 +64,7 @@ using ReverseManufacturing
         p4 = product_name_to_product["P4"]
         @test plant.output[p3] == 0.05
         @test plant.output[p4] == 0.8
-        @test plant.disposal_limit[p3] == [0, 0]
+        @test plant.disposal_limit[p3] == [1e8, 1e8]
         @test plant.disposal_limit[p4] == [0, 0]
     end
 end