Lichen

Annotated tests/identity.py

923:d5f80f46d267
12 months ago Paul Boddie Fixed integer instance tests. int-as-function
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print isinstance("string", string)  # True
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print isinstance("string", integer) # False
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print isinstance(123, integer)      # True
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print isinstance(123, string)       # False
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print
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class A:
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    pass
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class B(A):
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    pass
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class C(B):
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    pass
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a = A()
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b = B()
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c = C()
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print isinstance(a, A)              # True
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print isinstance(b, B)              # True
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print isinstance(c, C)              # True
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print
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print isinstance(a, a)              # False
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print isinstance(b, b)              # False
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print isinstance(c, c)              # False
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print
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print isinstance(A, a)              # False
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print isinstance(B, b)              # False
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print isinstance(C, c)              # False
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print
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print isinstance(a, B)              # False
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print isinstance(b, C)              # False
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print isinstance(c, A)              # True
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print
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print isinstance(a, C)              # False
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print isinstance(b, A)              # True
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print isinstance(c, B)              # True
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print
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print issubclass(A, A)              # True
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print issubclass(B, B)              # True
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print issubclass(C, C)              # True
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print
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print issubclass(a, a)              # False
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print issubclass(b, b)              # False
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print issubclass(c, c)              # False
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print
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print issubclass(a, A)              # False
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print issubclass(b, B)              # False
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print issubclass(c, C)              # False
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print
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print issubclass(A, B)              # False
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print issubclass(B, C)              # False
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print issubclass(C, A)              # True
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print
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print issubclass(A, C)              # False
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print issubclass(B, A)              # True
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print issubclass(C, B)              # True