set_coordinates specs passing
set_duration spec passing
extracted call_coordinates_retriever
extracted call_distance_matrix_helper
refactored call_distance_matrix_helper
3 unit tests for update passing
distance_matrix_helper related specs passing
it does not call distance_matrix_helper spec passing
Merge branch 'master' into trip_unit_tests
Merge pull request #56 from LightningLord/trip_unit_tests

Trip unit tests