def test_method_struct_defined_method():
Dog = Struct(
"Dog", "name", "age", methods={"say": lambda self: self.__dict__["name"]}
)
dog = Dog()
dog.name = "rex"
dog.age = 12
assert dog.say() == "rex"
def test_eq_two_structs_are_not_equivalent():
Dog = Struct("Dog", "name", "age")
d1 = Dog()
d1.name = "caesar"
d1.age = 20
d2 = Dog()
d2.name = "rex"
d2.age = 12
assert d1 != d2
def test_hash_two_structs_produce_the_same_key():
Dog = Struct("Dog", "name", "age")
d1 = Dog()
d1.name = "rex"
d1.age = 12
d2 = Dog()
d2.name = "rex"
d2.age = 12
hsh = {}
hsh[d1] = 1
hsh[d2] = 2
assert len(hsh) == 1
def test_hash_two_structs_produce_different_keys():
Dog = Struct("Dog", "name", "age")
d1 = Dog()
d1.name = "rex"
d1.age = 12
d2 = Dog()
d2.name = "caesar"
d2.age = 20
hsh = {}
hsh[d1] = 1
hsh[d2] = 2
assert len(hsh) == 2
def main():
Dog = Struct(
"Dog",
"name",
"age",
methods={
"say": lambda self: print("Hello {}".format(self.__dict__["name"]))
},
)
d = Dog()
d.name = "rex"
d.age = 54
d.say()
print(d.members())
d2 = Dog()
d2.name = "Wolfie"
d2.age = 22
print("Age: {}".format(d2.age))
d2.say()
d3 = Dog()
d3.name = "Wolfie"
d3.age = 22
d3.say()
print("d2 == d3", d2 == d3)
h = {}
h[d] = 1
h[d2] = 2
h[d3] = 3
print(len(h))
o = OpenStruct()
o.dog_name = "Rex"
print(o.dog_name)
print(o)
b = OpenStruct({"age": 12})
print(b.age)
def test_members_struct_returns_field_names():
Dog = Struct("Dog", "name", "age")
dog = Dog()
assert dog.members() == ("name", "age")
def test_init_struct_raises_error_if_less_values():
Dog = Struct("Dog", "name", "age")
with pytest.raises(ValueError):
dog = Dog("Rex")
def test_init_struct_use_arguments():
Dog = Struct("Dog", "name", "age")
dog = Dog("Rex", 12)
assert dog.name == "Rex" and dog.age == 12
def test_str_struct_str():
Dog = Struct("Dog", "name", "age")
dog = Dog()
dog.name = "rex"
dog.age = 12
assert "[name=rex, age=12]" == str(dog)
def test_field_struct_declared_field_is_none():
Dog = Struct("Dog", "age")
dog = Dog()
assert dog.age == None
def test_to_dict_struct_returns_dict_of_fields_and_values():
Dog = Struct("Dog", "name", "age")
dog = Dog("Rex", 12)
assert dog.to_dict() == {"name": "Rex", "age": 12}
def test_len_struct_returns_size_of_fields():
Dog = Struct("Dog", "name", "age")
dog = Dog("Rex", 12)
assert len(dog) == 2
def test_values_struct_returns_values_tuple():
Dog = Struct("Dog", "name", "age")
dog = Dog("Rex", 12)
assert dog.values() == ("Rex", 12)
def test_field_struct_declared_fields_and_set_values():
Dog = Struct("Dog", "name", "age")
dog = Dog()
dog.name = "rex"
dog.age = 12
assert dog.name == "rex" and dog.age == 12