TomTom::Batch: Extract code to `#extract_costs_to_way_costs!`

Extract some code from `#batch` to allow us to test the part that takes
distance and time values from the response JSON and put fill them into
`WayCost`s.

In order for the test to work, had to add an `#==` method to `WayCost`
and make `distance` and `time` accessors.

The JSON file fixture is a copy of a response from the TomTom `/batch`
API. The file is pretty big. I'm not sure if maybe I should condense it
for the sake of test performance.

Refs #6095

1 files changed, 27 insertions, 0 deletions

diff --git a/spec/lib/tom_tom/batch_spec.rb b/spec/lib/tom_tom/batch_spec.rb
index eed8848f0..c3ab46a4b 100644
--- a/spec/lib/tom_tom/batch_spec.rb
+++ b/spec/lib/tom_tom/batch_spec.rb
@@ -1,6 +1,33 @@
 RSpec.describe TomTom::Batch do
   let(:batch) { TomTom::Batch.new(nil) }
 
+  describe "#extract_costs_to_way_costs" do
+    it "puts distance & time costs in way_costs" do
+      way_costs = [
+        WayCost.new(
+          departure: Geokit::LatLng.new(48.85086, 2.36143),
+          arrival: Geokit::LatLng.new(47.91231, 1.87606)
+        ),
+        WayCost.new(
+          departure: Geokit::LatLng.new(47.91231, 1.87606),
+          arrival: Geokit::LatLng.new(52.50867, 13.42879)
+        )
+      ]
+
+      expected_way_costs = way_costs.deep_dup
+      expected_way_costs[0].distance = 117947
+      expected_way_costs[0].time = 7969
+      expected_way_costs[1].distance = 1114379
+      expected_way_costs[1].time = 71010
+
+      batch_response = JSON.parse(read_fixture('tom_tom_batch.json'))
+
+      expect(
+        batch.extract_costs_to_way_costs!(way_costs, batch_response)
+      ).to match_array(expected_way_costs)
+    end
+  end
+
   describe "#convert_way_costs" do
     it "turns WayCost points into a collection of colon-separated strings" do
       way_costs = [