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# import sys
# from nose import SkipTest
from multipledispatch import dispatch
from multipledispatch.dispatcher import Dispatcher
def test_function_annotation_register():
f = Dispatcher("f")
@f.register()
def inc(x: int):
return x + 1
@f.register()
def inc(x: float):
return x - 1
assert f(1) == 2
assert f(1.0) == 0.0
def test_function_annotation_dispatch():
@dispatch()
def inc(x: int):
return x + 1
@dispatch()
def inc(x: float):
return x - 1
assert inc(1) == 2
assert inc(1.0) == 0.0
def test_function_annotation_dispatch_custom_namespace():
namespace = {}
@dispatch(namespace=namespace)
def inc(x: int):
return x + 2
@dispatch(namespace=namespace)
def inc(x: float):
return x - 2
assert inc(1) == 3
assert inc(1.0) == -1.0
assert namespace["inc"] == inc
assert set(inc.funcs.keys()) == set([(int,), (float,)])
def test_method_annotations():
class Foo:
@dispatch()
def f(self, x: int):
return x + 1
@dispatch()
def f(self, x: float):
return x - 1
foo = Foo()
assert foo.f(1) == 2
assert foo.f(1.0) == 0.0
def test_overlaps():
@dispatch(int)
def inc(x: int):
return x + 1
@dispatch(float)
def inc(x: float):
return x - 1
assert inc(1) == 2
assert inc(1.0) == 0.0
def test_overlaps_conflict_annotation():
@dispatch(int)
def inc(x: str):
return x + 1
@dispatch(float)
def inc(x: int):
return x - 1
assert inc(1) == 2
assert inc(1.0) == 0.0
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