def test_state_after_start(self):
"""
Ensure the car's state is "started" after using start method
"""
c = Car(color='blue', make='honda', model='civic')
c.start()
try:
self.assertEqual(c.state, 'started')
except AssertionError:
self.fail(
"Was not able to return the car's state as started after using start method"
)
def test_state_read_only(self):
"""
Ensure the car state attribute is read only and throws
AttributeError if someone tries to assign a value directly
"""
c = Car(color='blue', make='honda', model='civic')
try:
try:
c.state = 'test'
except AttributeError as a:
self.assertEqual(str(a), "can't set attribute")
except AssertionError:
self.fail(
"Was not able to ensure he car state attribute is read only and throws AttributeError if someone tries to assign a value directly"
)
def test_allows_cars_to_enter(self):
"""
Ensure the garage allows Car object to enter
"""
c = Car(color='yellow', make='honda', model='civic')
g = Garage(name='test_garage')
g.enter(c)
def test_allows_cars_to_exit(self):
"""
Ensure vehicles can leave the garage
"""
d = Car(color='yellow', make='honda', model='civic')
g = Garage(name='test_garage')
g.enter(d)
g.exit(d)
def test_ensure_cars_enter_fully(self):
"""
Ensure vehicle is in garage after it enters (eg: vehicle in garage == True)
"""
d = Car(color='yellow', make='honda', model='civic')
g = Garage(name='test_garage')
g.enter(d)
self.assertEqual(d in g.vehicles, True)
def test_initial_state_is_stopped(self):
"""
Ensure the a car's initial state is "stopped"
"""
c = Car(color='blue', make='honda', model='civic')
try:
self.assertEqual(c.state, 'stopped')
except AssertionError:
self.fail("Was not able to return an initial state of stopped")
def test_description(self):
"""
Ensure the car description return a string of: "color, make model"
"""
c = Car(color='blue', make='honda', model='civic')
d = c.description
try:
self.assertEqual(d, '{} {} {}'.format(c.color, c.make, c.model))
except AssertionError:
self.fail("Was not able to return a string of: color, make model")
def test_car_is_a_vehicle(self):
"""
Ensure a car object is also an instance of BaseVehicle
"""
c = Car(color='blue', make='honda', model='civic')
try:
self.assertEqual(isinstance(c, BaseVehicle), True)
except AssertionError:
self.fail(
"Was not able to ensure a car object is also an instance of BaseVehicle"
)
def test_str_builtin(self):
"""
Ensure the car evaluates to a string of
"I am a <car color>, <car make>, <car model>."
"""
c = Car(color='blue', make='honda', model='civic')
try:
self.assertEqual(str(c), 'I am a blue honda civic.')
except AssertionError:
self.fail(
"Was not able to ensure the car evaluates to a string of 'I am a <car color> <car make> <car model>'."
)
def test_len_builtin(self):
"""
Ensure that the length of the garage matches the number
of vehicles parked in it
"""
g = Garage(name='test_garage')
a = Car(color='red', make='honda', model='civic')
b = Car(color='white', make='honda', model='civic')
c = Car(color='blue', make='honda', model='civic')
g.enter(a)
g.enter(b)
g.enter(c)
manual_list = len([a, b, c])
garage_test_list = len([v for v in g])
try:
self.assertEqual(garage_test_list, manual_list)
except AssertionError:
self.fail(
'Could not ensure we can iterate over garage vehicles by trying to iterate over the garage itself.'
)
def test_iter_builtin(self):
"""
Ensure we can iterate over garage vehicles by trying to
iterate over the garage itself
"""
gg = Garage(name='test_garage')
a = Car(color='red', make='honda', model='civic')
b = Car(color='white', make='honda', model='civic')
c = Car(color='green', make='honda', model='civic')
gg.enter(a)
gg.enter(b)
gg.enter(c)
manual_list = [a, b, c]
garage_test_list = [v for v in gg]
try:
self.assertEqual(garage_test_list, manual_list)
except AssertionError:
self.fail(
'Could not ensure we can iterate over garage vehicles by trying to iterate over the garage itself'
)
def test_ensure_cars_exit_fully(self):
"""
Vehicle is not in garage after it exits
"""
d = Car(color='yellow', make='honda', model='civic')
g = Garage(name='test_garage')
g.enter(d)
g.exit(d)
try:
self.assertEqual(d in g.vehicles, False)
except AssertionError:
self.fail(
'Could not ensure vehicle is not in garage after it exits')
def test_raise_lookup_error_on_exit(self):
"""
Ensure that garage raises LookupError if vehicle attempts
to exit but was never in garage.
"""
d = Car(color='yellow', make='honda', model='civic')
g = Garage(name='test_garage')
try:
g.exit(d)
except LookupError as e:
try:
self.assertEqual(str(e), "That vehicle is not in test_garage.")
except AssertionError:
self.fail(
'Could not ensure that garage raises LookupError if vehicle attempts to exit but was never in garage.'
)
def test_color_requirement(self):
"""
Ensure the car requires a color argument during instantiation
"""
try:
c = Car(make='honda', model='civic')
except TypeError as e:
try:
self.assertEqual(
str(e),
"__init__() missing 1 required positional argument: 'color'"
)
except AssertionError:
self.fail(
"Was not able to ensure the car requires a color argument during instantiation."
)