def test_Planes_have_Fly_and_Land_methods_working():
p = Planes()
assert p.isFlying is False
p.Fly()
assert p.isFlying is True
p.Land()
assert p.isFlying is False
def test_Repair_works():
p = Planes()
for i in range(101):
p.Fly()
p.Land()
p.Repair()
assert p.TripsSinceMaintenance == 0
assert p.NeedsMaintenance is False
def test_switcing_isFlying_from_False_to_False_not_increment_TripsSinceMaintenance():
p = Planes()
p.Land()
assert p.TripsSinceMaintenance == 0
p.Fly()
p.Land()
p.Land()
assert p.TripsSinceMaintenance == 1
def test_switcing_isFlying_from_True_to_False_increment_TripsSinceMaintenance():
p = Planes()
assert p.TripsSinceMaintenance == 0
assert p.NeedsMaintenance is False
p.Fly()
assert p.TripsSinceMaintenance == 0
assert p.NeedsMaintenance is False
p.Land()
assert p.TripsSinceMaintenance == 1
assert p.NeedsMaintenance is False
def test_rideBy_method_works():
p = Planes()
assert p.TripsSinceMaintenance == 0
p.rideBy(15)
assert p.TripsSinceMaintenance == 15
p.rideBy(2)
assert p.TripsSinceMaintenance == 17
def test_switcing_isFlying_more_than_100_times_turns_on_NeedsMaintenance():
p = Planes()
assert p.NeedsMaintenance is False
p.Fly()
p.Land()
assert p.TripsSinceMaintenance == 1
assert p.NeedsMaintenance is False
for i in range(99):
p.Fly()
p.Land()
assert p.TripsSinceMaintenance == 100
assert p.NeedsMaintenance is False
p.Fly()
p.Land()
assert p.TripsSinceMaintenance == 101
assert p.NeedsMaintenance is True
def test_Fly_when_NeedsMaintenance_is_True_returns_False():
p = Planes()
p.rideBy(101)
assert p.Fly() is False
def test_Planes_exists_and_are_Vehicle():
p = Planes()
assert isinstance(p, (Planes, Vehicle))