def testDeclareClassImplements() -> None:
class I1(Interface):
def M1(self):
""
class I2(Interface):
def M2(self):
""
class C0:
""
class C1:
def M1(self):
""
class C2:
def M2(self):
""
@ImplementsInterface(I2)
class C2B:
def M2(self):
""
class C12B(C1, C2B):
""
with pytest.raises(AssertionError):
DeclareClassImplements(C0, I1)
assert IsImplementation(C1, I1, requires_declaration=False) == True
DeclareClassImplements(C1, I1)
assert IsImplementation(C1, I1) == True
AssertImplements(C1, I1)
# C1 is parent of C12B, and, above, it was declared that C1 implements I1,
# so C12B should automatically implement I1.
assert IsImplementation(C12B, I1) == True # automatic
assert (IsImplementation(C12B, I2) == True
) # inheritance for Implements still works automatically
DeclareClassImplements(C12B, I1)
assert IsImplementation(C12B, I1) == True # now it implements
assert IsImplementation(C12B, I2) == True
DeclareClassImplements(C2, I2)
assert IsImplementation(C2, I2) == True
AssertImplements(C2, I2)
# Exception: if I define a class *after* using DeclareClassImplements in the base, it works:
class C12(C1, C2):
""
AssertImplements(C12, I1)
AssertImplements(C12, I2)
def testNull() -> None:
AssertImplements(
Null(), _InterfM2,
requires_declaration=False) # Not raises BadImplementationError
class ExtendedNull(Null):
""
AssertImplements(
ExtendedNull(), _InterfM2,
requires_declaration=False) # Not raises BadImplementationError
def __init__(self, image: IArray, domain: IArray) -> None:
"""
:param image:
This is the image of this curve
:param domain:
This is the domain of this curve
"""
AssertImplements(image, IArray)
AssertImplements(domain, IArray)
self._CheckImageAndDomainLength(image, domain)
self._image = image
self._domain = domain
def testDecorators(register_callback: bool):
"""Interfaces and the foundation decorators/callbacks need to play nice together."""
class IFoo(Interface):
def GetValues(self, unit: str) -> List[float]:
...
@classmethod
def GetCaption(cls) -> str:
...
@ImplementsInterface(IFoo)
class AbstractFoo:
@Implements(IFoo.GetValues)
@Abstract
def GetValues(self, unit: str) -> List[float]:
...
@classmethod
@Implements(IFoo.GetCaption)
@Abstract
def GetCaption(cls) -> str:
...
class Foo(AbstractFoo):
@Override(AbstractFoo.GetValues)
def GetValues(self, unit: str) -> List[float]:
return [0.1, 10.0]
@classmethod
@Override(AbstractFoo.GetCaption)
def GetCaption(cls) -> str:
return "Foo"
from oop_ext.foundation import callback
if register_callback:
def AfterCaption(*args):
pass
# Ensure methods overwritten by callbacks don't interfere with interface
# signature detection: Callback.After overwrites the method object on the class,
# with potentially a different signature.
callback.After(Foo.GetCaption, AfterCaption)
AssertImplements(Foo, IFoo)
AssertImplements(Foo(), IFoo)
assert Foo.GetCaption() == "Foo"
assert Foo().GetValues("m") == [0.1, 10.0]
def testInterfaceCheckRequiresInterface() -> None:
class M3:
def m3(self, *args, **kwargs):
""
with pytest.raises(InterfaceError):
AssertImplements(M3(), M3) # type:ignore[arg-type]
with pytest.raises(InterfaceError):
IsImplementation(M3(), M3) # type:ignore[arg-type]
assert IsImplementation(M3(), _InterfM3, requires_declaration=False)
assert not IsImplementation(M3(), _InterfM3, requires_declaration=True)
with pytest.raises(AssertionError):
AssertImplements(M3(), _InterfM3, requires_declaration=True)
def testGetImplementedInterfaces2() -> None:
@ImplementsInterface(_InterfM1)
class A:
def m1(self):
""
@ImplementsInterface(_InterfM2)
class B(A):
def m2(self):
""
assert 2 == len(GetImplementedInterfaces(B()))
with pytest.raises(AssertionError):
AssertImplements(A(), _InterfM2)
AssertImplements(B(), _InterfM2)
def testNoCheck() -> None:
@ImplementsInterface(_InterfM1, no_check=True)
class NoCheck:
pass
no_check = NoCheck()
with pytest.raises(AssertionError):
AssertImplements(no_check, _InterfM1)
def SetDefaultUnitSystemClass(self, class_: Type[IUnitSystem]) -> None:
"""
Set the default unit system class.
:param class_:
The unit system class that will be used when creating new unit systems.
"""
AssertImplements(class_, IUnitSystem)
self._default_unit_system_class = class_
def testImplementorWithAny() -> None:
"""
You don't need to explicitly declare that you implement an Interface.
This is just a smoke test
"""
class M3:
def m3(self, *args, **kwargs):
""
AssertImplements(M3(), _InterfM3, requires_declaration=False)
def testReadOnlyAttribute() -> None:
class IZoo(Interface):
zoo = ReadOnlyAttribute(int)
@ImplementsInterface(IZoo)
class Zoo:
def __init__(self, value):
self.zoo = value
a_zoo = Zoo(value=99)
AssertImplements(a_zoo, IZoo)
def testNoName() -> None:
class I(Interface):
def MyMethod(self, foo):
""
class C:
def MyMethod(self, bar):
""
with pytest.raises(AssertionError):
AssertImplements(C(), I)
def testIsImplementationOfAny() -> None:
class A:
def m3(self, arg1, arg2):
""
a_obj = A()
AssertImplements(a_obj, _InterfM3, requires_declaration=False)
assert IsImplementationOfAny(A,
[_InterfM1, _InterfM2, _InterfM3, _InterfM4],
requires_declaration=False)
assert not IsImplementationOfAny(A, [_InterfM1, _InterfM2, _InterfM4],
requires_declaration=False)
def testCallbackAndInterfaces() -> None:
"""
Tests if the interface "AssertImplements" works with "callbacked" methods.
"""
@ImplementsInterface(_InterfM1)
class My:
def m1(self):
""
def MyCallback():
""
from oop_ext.foundation.callback import After
o = My()
AssertImplements(o, _InterfM1)
After(o.m1, MyCallback)
AssertImplements(o, _InterfM1)
AssertImplements(o, _InterfM1) # Not raises BadImplementationError
def testClassMethodBug(mocker) -> None:
"""
Issue #20
"""
class IFoo(Interface):
@classmethod
def foo(cls):
""
@ImplementsInterface(IFoo)
class FooImplementation:
@classmethod
def foo(cls):
""
mocker.spy(FooImplementation, "foo")
AssertImplements(FooImplementation, IFoo, requires_declaration=True)
def testAssertImplementsDoesNotDirObject() -> None:
"""
AssertImplements does not attempt to __getattr__ methods from an object, it only considers
methods that are actually bound to the class.
"""
class M1:
def __getattr__(self, attr):
assert attr == "m1" # This test only accepts this attribute
class MyMethod(Method):
def __call__(self):
""
return MyMethod()
m1 = M1()
m1.m1()
with pytest.raises(AssertionError):
AssertImplements(m1, _InterfM1)
def testPassNoneInAssertImplementsFullChecking() -> None:
with pytest.raises(AssertionError):
AssertImplements(None, _InterfM1)
with pytest.raises(AssertionError):
AssertImplements(10, _InterfM1)