public void NodeFinder_WithHistoryGoingEast_SetPropertyDirectionToEastwards() { // arrange var fakeGPSTuples = new List <Tuple <double, double> > { new Tuple <double, double>(52.2318011, 0.151), new Tuple <double, double>(52.2318011, 0.152), new Tuple <double, double>(52.2318011, 0.153), new Tuple <double, double>(52.2318011, 0.154), new Tuple <double, double>(52.2318011, 0.155) }; _nodeFinder.UpdateVehicleLocationHistory(fakeGPSTuples); _nodeFinder.Recompute(); var direction = _nodeFinder.CurrentDirection; // assert Assert.True(direction.DeltaLongitude > 0); }