def test_leg_fails_to_initailise_without_valid_bearing(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
waypoint = (10.123456, 2.324567)
bearing = 190
with self.assertRaises(TypeError):
Leg(sdt, waypoint, bearing)
def test_leg_fails_to_initailise_without_bearing(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "S")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
with self.assertRaises(ValueError):
Leg(sdt, waypoint)
def test_route_is_intialised_with_legs(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
leg = Leg(sdt, waypoint, bearing)
legs = [leg]
route = Route(legs)
self.assertIsInstance(route, Route)
def test_reverse_bearing_is_correct(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
reverse_bearing = CompassBearing(10)
leg = Leg(sdt, waypoint, bearing)
self.assertIsInstance(leg.end_waypoint, Waypoint)
self.assertEqual(leg.reverse_bearing.bearing, reverse_bearing.bearing)
def test_starting_waypoint_exists(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
leg = Leg(sdt, waypoint, bearing)
legs = [leg]
route = Route(legs)
self.assertIsInstance(route, Route)
self.assertEqual(route.start_waypoint, waypoint)
def test_route_returns_correct_number_of_legs(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
leg = Leg(sdt, waypoint, bearing)
legs = [leg]
route = Route(legs)
self.assertIsInstance(route, Route)
self.assertEqual(route.number_of_legs, 1)
def test_get_current_leg_bad_index(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
leg = Leg(sdt, waypoint, bearing)
legs = [leg]
route = Route(legs)
self.assertIsInstance(route, Route)
with self.assertRaises(IndexError):
route.current_leg(1)
def test_previous_leg_of_route_does_not_exist(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
leg = Leg(sdt, waypoint, bearing)
legs = [leg]
route = Route(legs)
self.assertIsInstance(route, Route)
with self.assertRaises(IndexError):
route.previous_leg(2)
def test_end_waypoint_exists(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
waypoint2 = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
leg = Leg(sdt, waypoint, bearing)
leg2 = Leg(sdt, waypoint2, bearing)
legs = [leg, leg2]
route = Route(legs)
self.assertIsInstance(route.end_waypoint, Waypoint)
self.assertEqual(str(route.end_waypoint), str(leg2.end_waypoint))
def test_end_waypoint_is_generate_correctly(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
latitude = Coordinate(56, 42, 10, "N")
longitude = Coordinate(2, 5, 19, "W")
waypoint = Waypoint(latitude, longitude)
bearing = CompassBearing(190)
expected_end_wpt = Waypoint(Coordinate(56, 32, 20, "N"),
Coordinate(2, 8, 27, "W"))
leg = Leg(sdt, waypoint, bearing)
self.assertIsInstance(leg.end_waypoint, Waypoint)
self.assertAlmostEqual(leg.end_waypoint.latitude.as_decimal,
expected_end_wpt.latitude.as_decimal)
self.assertAlmostEqual(leg.end_waypoint.longitude.as_decimal,
expected_end_wpt.longitude.as_decimal)
def test_distance_instantiates_with_zero_value(self):
distance = Distance(0)
self.assertIsInstance(distance, Distance)
self.assertEqual(distance.in_nautical_miles, 0)
def test_distance_fails_to_instantiate_with_negative_number(self):
with self.assertRaises(ValueError):
Distance(-2.0)
def test_distance_instantiates_with_integer(self):
distance = Distance(10)
self.assertIsInstance(distance, Distance)
self.assertEqual(distance.in_nautical_miles, 10)
def test_sdt_initailises_with_distance_and_time(self):
distance = Distance(10)
time = Time(20)
sdt = SpeedDistanceTime(distance=distance, time=time)
self.assertIsInstance(sdt, SpeedDistanceTime)
self.assertEqual(sdt.speed.in_knots, 0.5)
def test_distance_converts_to_miles(self):
distance = Distance(20)
self.assertAlmostEqual(distance.in_miles, Decimal(23.0156))
def test_distance_instantiates_with_less_than_one_greater_than_0(self):
distance = Distance(0.2)
self.assertIsInstance(distance, Distance)
self.assertEqual(distance.in_nautical_miles, 0.2)
def test_distance_converts_to_km(self):
distance = Distance(10)
self.assertAlmostEqual(distance.in_km, Decimal(18.52))
def test_distance_instantiates_with_float(self):
distance = Distance(19.2345)
self.assertIsInstance(distance.in_nautical_miles, Decimal)
self.assertEqual(distance.in_nautical_miles, 19.2345)
def test_distance_instantiates_with_string_number_value(self):
distance = Distance('10.60')
self.assertIsInstance(distance, Distance)
def test_sdt_intailises_with_speed_and_distance(self):
speed = Speed(10)
distance = Distance(20)
sdt = SpeedDistanceTime(speed=speed, distance=distance)
self.assertIsInstance(sdt, SpeedDistanceTime)
self.assertEqual(sdt.time.in_seconds, 7200)