Fix empty vehicle type

WazeRouteCalculator/WazeRouteCalculator.py

@@ -88,7 +88,6 @@ def get_route(self, npaths=1, time_delta=0):
         url_options = {
             "from": "x:%s y:%s" % (self.start_coords["lon"], self.start_coords["lat"]),
             "to": "x:%s y:%s" % (self.end_coords["lon"], self.end_coords["lat"]),
-            "vehicleType": self.vehicle_type,
             "at": time_delta,
             "returnJSON": "true",
             "returnGeometries": "true",
@@ -97,6 +96,8 @@ def get_route(self, npaths=1, time_delta=0):
             "nPaths": npaths,
             "options": "AVOID_TRAILS:t",
         }
+        if self.vehicle_type:
+            url_options["vehicleType"] = self.vehicle_type
 
         for routing_srv in routing_servers:
             response = requests.get(self.WAZE_URL + routing_srv, params=url_options, headers=self.HEADERS)

tests.py

@@ -353,3 +353,13 @@ def test_vehicle_motor(self):
             route = wrc.WazeRouteCalculator(from_address, to_address, vehicle_type='MOTORCYCLE')
             route.get_route()
         assert 'vehicletype=motorcycle' in req.last_request.query
+
+    def test_empty_vehicle_type(self):
+        from_address = 'From address'
+        to_address = 'To address'
+        with requests_mock.mock() as m:
+            m.get(self.address_req, text=self.address_to_coords_response)
+            req = m.get(self.routing_req, text=self.routing_response)
+            route = wrc.WazeRouteCalculator(from_address, to_address)
+            route.get_route()
+        assert 'vehicletype' not in req.last_request.query