def test_getSetPrimitiveProperties():
number = Number(20)
assert number.value == 20
assert number.double_value == 40
assert Negate(Add(Number(20), Number(10))).value == -30
assert Multiply(Add(Number(5), Number(5)), Number(2)).value == 20
assert Power(Number(3), Number(4)).value == 3 ** 4
assert Power(Number(999), Number(1)).value == 999
assert Power(Number(999), Number(0)).value == 1
def test_testInterfaces():
friendly: IFriendly
friendlier: IFriendlier
random_number_generator: IRandomNumberGenerator
friendly_random_generator: IFriendlyRandomGenerator
add = Add(Number(10), Number(20))
friendly = add
assert friendly.hello() == "Hello, I am a binary operation. What's your name?"
multiply = Multiply(Number(10), Number(30))
friendly = multiply
friendlier = multiply
random_number_generator = multiply
assert friendly.hello() == "Hello, I am a binary operation. What's your name?"
assert friendlier.goodbye() == "Goodbye from Multiply!"
assert random_number_generator.next() == 89
friendly_random_generator = DoubleTrouble()
assert friendly_random_generator.hello() == "world"
assert friendly_random_generator.next() == 12
poly = Polymorphism()
assert (
poly.say_hello(friendly)
== "oh, Hello, I am a binary operation. What's your name?"
)
assert poly.say_hello(friendly_random_generator) == "oh, world"
assert (
poly.say_hello(SubclassNativeFriendlyRandom())
== "oh, SubclassNativeFriendlyRandom"
)
assert poly.say_hello(PureNativeFriendlyRandom()) == "oh, I am a native!"