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from multipledispatch.variadic import isvariadic, Variadic
class A(object):
pass
class B(A):
pass
class C(object):
pass
def test_is_variadic():
assert isvariadic(Variadic[A])
assert not isvariadic(A)
def test_equals_simple():
type_a = Variadic[A]
type_b = Variadic[B]
other_type_a = Variadic[A]
assert type_a == other_type_a
assert not type_a == type_b
def test_equals_union():
union_a_b = Variadic[(A, B)]
union_b_a = Variadic[(B, A)]
union_a_b_c = Variadic[(A, B, C)]
union_c_b_a = Variadic[(C, B, A)]
assert union_a_b == union_b_a
assert union_a_b_c == union_c_b_a
assert not union_a_b == union_a_b_c
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