osrm-backend/features/guidance/continue.feature

@routing  @guidance
Feature: Continue Instructions

    Background:
        Given the profile "car"
        Given a grid size of 10 meters

    Scenario: Road turning left
        Given the node map
            """
                c
            a - b-d
            """

        And the ways
            | nodes  | highway |
            | abc    | primary |
            | bd     | primary |

       When I route I should get
            | waypoints | route       | turns                       |
            | a,c       | abc,abc,abc | depart,continue left,arrive |
            | a,d       | abc,bd,bd   | depart,turn straight,arrive |

    Scenario: Road turning left and straight
        Given the node map
            """
                c
            a - b-d
            """

        And the ways
            | nodes  | highway | name |
            | abc    | primary | road |
            | bd     | primary | road |

       When I route I should get
            | waypoints | route          | turns                       |
            | a,c       | road,road,road | depart,continue left,arrive |
            | a,d       | road,road      | depart,arrive               |

    Scenario: Road turning left and straight
        Given the node map
            """
                c
            a - b-d
                e
            """

        And the ways
            | nodes  | highway | name |
            | abc    | primary | road |
            | bd     | primary | road |
            | be     | primary | road |

       When I route I should get
            | waypoints | route          | turns                        |
            | a,c       | road,road,road | depart,continue left,arrive  |
            | a,d       | road,road      | depart,arrive                |
            | a,e       | road,road,road | depart,continue right,arrive |

    Scenario: Road turning right
        Given the node map
            """
            a - b-d
                c
            """

        And the ways
            | nodes  | highway |
            | abc    | primary |
            | bd     | primary |

       When I route I should get
            | waypoints | route       | turns                        |
            | a,c       | abc,abc,abc | depart,continue right,arrive |
            | a,d       | abc,bd,bd   | depart,turn straight,arrive  |

    Scenario: Road turning slight left
        Given the node map
            """
                    c
                  /
            a - b
                 `d
            """

        And the ways
            | nodes  | highway |
            | abc    | primary |
            | bd     | primary |

       When I route I should get
            | waypoints | route       | turns                       |
            | a,c       | abc,abc,abc | depart,continue left,arrive |
            | a,d       | abc,bd,bd   | depart,turn right,arrive    |

    Scenario: Road turning slight right
        Given the node map
            """
                 ,d
            a - b
                  \
                    c
            """

        And the ways
            | nodes  | highway |
            | abc    | primary |
            | bd     | primary |

       When I route I should get
            | waypoints | route       | turns                        |
            | a,c       | abc,abc,abc | depart,continue right,arrive |
            | a,d       | abc,bd,bd   | depart,turn left,arrive      |

    Scenario: Road Loop
       Given the node map
           """
               f - e
               |   |
           a - b-g |
               |   |
               c - d
           """

       And the ways
          | nodes   | highway |
          | abcdefb | primary |
          | bg      | primary |

       When I route I should get
          | waypoints | route                   | turns                        |
          | a,c       | abcdefb,abcdefb,abcdefb | depart,continue right,arrive |
          | a,f       | abcdefb,abcdefb,abcdefb | depart,continue left,arrive  |
          | a,d       | abcdefb,abcdefb,abcdefb | depart,continue right,arrive |
          # continuing right here, since the turn to the left is more expensive
          | a,e       | abcdefb,abcdefb,abcdefb | depart,continue right,arrive |