test_routes.py

import pytest
from models import Node, Route
import utils.dbs as dbs
from random import random, randint

@pytest.fixture
def route(start_loc, dist):
    route = Route(start_loc, dist, 'loop')
    return route

route = route((37.785805, -122.424427), 2)

def test_route_init():
    assert route is not None

def test_route_exists():
    assert route.path is not None

def test_starts_and_ends():
    assert route.full_node_path[0].lat == route.full_node_path[-1].lat
    assert route.full_node_path[0].lon == route.full_node_path[-1].lon    

def test_route_moves():
    for i in range(1,len(route.full_node_path)):
        assert route.full_node_path[i].lat != route.full_node_path[i-1].lat
        assert route.full_node_path[i].lon != route.full_node_path[i-1].lon

def test_route_length():
    route_distance = route.route_distance
    acceptable_range = [(route_distance - (route_distance * .5)),
                        (route_distance + (route_distance * .5))]
    assert route.distance > acceptable_range[0]
    assert route.distance < acceptable_range[1]

def test_route_data_types():
    assert type(route) == Route
    for n in route.full_node_path:
        assert type(n) == Node or type(n) == dbs.GNode

def test_lots_of_route():
    lat_min = 37.7073127
    lat_max = 37.8112212
    lon_min = -122.5144321
    lon_max = -122.3678945
    for i in range(10):
        lat = lat_min + (random() * (lat_max - lat_min))
        lon = lon_min + (random() * (lon_max - lon_min))
        dist = random() * 9
        route_type = ['loop', 'outandback'][randint(0, 1)]
        print (lat, lon), dist, route_type
        assert Route((lat, lon), dist, route_type) is not None