osrm-backend/features/guidance/collapse-detail.feature

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@routing @guidance @collapsing
Feature: Collapse
Background:
Given the profile "car"
Given a grid size of 5 meters
@reverse
Scenario: Collapse U-Turn Triangle Intersection
Given the node map
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"""
g f e d
a b c
"""
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And the ways
| nodes | highway | name | oneway |
| abc | primary | road | yes |
| defg | primary | road | yes |
| fb | primary_link | | yes |
| be | primary_link | | yes |
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When I route I should get
| waypoints | route | turns |
| a,g | road,road,road | depart,continue uturn,arrive |
| d,c | road,road,road | depart,continue uturn,arrive |
@reverse @traffic-signals
Scenario: Collapse U-Turn Triangle Intersection
Given the node map
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"""
g f j e d
h i
a b c
"""
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And the ways
| nodes | highway | name | oneway |
| abc | primary | road | yes |
| dejfg | primary | road | yes |
| fhb | primary_link | | |
| bie | primary_link | | |
And the nodes
| node | highway |
| j | traffic_signals |
| h | traffic_signals |
| i | traffic_signals |
When I route I should get
| waypoints | route | turns |
| a,g | road,road,road | depart,continue uturn,arrive |
| d,c | road,road,road | depart,continue uturn,arrive |
Scenario: Forking before a turn (forky)
Given the node map
"""
g
.
c
a . . b .'
`d.
f e
"""
# note: check clooapse.feature for a similar test case where we do not
# classify the situation as Sliproad and therefore keep the fork inst.
And the ways
| nodes | name | oneway | highway |
| ab | road | yes | primary |
| bd | road | yes | primary |
| bc | road | yes | primary |
| de | road | yes | primary |
| fd | cross | no | secondary |
| dc | cross | no | secondary |
| cg | cross | no | secondary |
And the relations
| type | way:from | way:to | node:via | restriction |
| restriction | bd | dc | d | no_left_turn |
| restriction | bc | dc | c | no_right_turn |
When I route I should get
| waypoints | route | turns |
| a,g | road,cross,cross | depart,turn left,arrive |
| a,e | road,road,road | depart,continue right,arrive |
# We should discuss whether the next item should be collapsed to depart,turn right,arrive.
| a,f | road,road,cross,cross | depart,continue slight right,turn right,arrive |