Move graph creation to graph.jl; simplify model.jl

test/graph_test.jl

@@ -0,0 +1,42 @@
+# Copyright (C) 2020 Argonne National Laboratory
+# Written by Alinson Santos Xavier <axavier@anl.gov>
+
+using ReverseManufacturing
+
+@testset "Graph" begin
+    @testset "build_graph" begin
+        basedir = dirname(@__FILE__)
+        instance = ReverseManufacturing.load("$basedir/../instances/samples/s1.json")
+        graph = ReverseManufacturing.build_graph(instance)
+        process_node_by_location_name = Dict(n.plant.location_name => n
+                                             for n in graph.process_nodes)
+        
+        @test length(graph.plant_shipping_nodes) == 8
+        @test length(graph.collection_shipping_nodes) == 10
+        @test length(graph.process_nodes) == 6
+        
+        node = graph.collection_shipping_nodes[1]
+        @test node.location.name == "C1"
+        @test length(node.incoming_arcs) == 0
+        @test length(node.outgoing_arcs) == 2
+        @test node.outgoing_arcs[1].source.location.name == "C1"
+        @test node.outgoing_arcs[1].dest.plant.plant_name == "F1"
+        @test node.outgoing_arcs[1].dest.plant.location_name == "L1"
+        @test node.outgoing_arcs[1].values["distance"] == 1095.62
+        
+        node = process_node_by_location_name["L1"]
+        @test node.plant.plant_name == "F1"
+        @test node.plant.location_name == "L1"
+        @test length(node.incoming_arcs) == 10
+        @test length(node.outgoing_arcs) == 2
+        
+        node = process_node_by_location_name["L3"]
+        @test node.plant.plant_name == "F2"
+        @test node.plant.location_name == "L3"
+        @test length(node.incoming_arcs) == 2
+        @test length(node.outgoing_arcs) == 2
+        
+        @test length(graph.arcs) == 38
+    end
+end
+