1 files changed, 31 insertions, 0 deletions
diff --git a/spec/lib/route_way_cost_json_serializer_spec.rb b/spec/lib/route_way_cost_json_serializer_spec.rb
new file mode 100644
index 000000000..52cb21afc
--- /dev/null
+++ b/spec/lib/route_way_cost_json_serializer_spec.rb
@@ -0,0 +1,31 @@
+RSpec.describe RouteWayCostJSONSerializer do
+  describe ".dump" do
+    it "converts distance from meters to km and time from seconds to minutes" do
+      costs = {
+        '1-2': {
+          'distance' => 35223,
+          'time' => 5604
+        },
+        '94435-97513' => {
+          'distance' => 35919,
+          'time' => 6174
+        }
+      }
+
+      expect(
+        RouteWayCostJSONSerializer.dump(costs)
+      ).to eq(<<-JSON.delete(" \n"))
+        {
+          "1-2": {
+            "distance": 35.223,
+            "time": 93
+          },
+          "94435-97513": {
+            "distance": 35.919,
+            "time": 102
+          }
+        }
+      JSON
+    end
+  end
+end