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# mode: run
# tag: kwargs, argument unpacking
# This test validates the error handling in the different specialised
# code paths of the argument unpacking code. The have-kwargs and
# no-kwargs branches take different paths, so we always test with and
# without a keyword dict (even if it's empty).
def test_single_arg(a):
"""
>>> test_single_arg(1)
1
>>> test_single_arg(1, **{})
1
>>> test_single_arg() # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_single_arg(1,2) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_single_arg(1,2, **{}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_single_arg(**{}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_single_arg(*(), **{}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_single_arg(**{'b':2}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_single_arg(**{'a':1, 'b':2}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
"""
return a
def test_two_args(a,b):
"""
>>> test_two_args(1,2)
(1, 2)
>>> test_two_args(1,2, **{})
(1, 2)
>>> test_two_args(1,**{'b':2})
(1, 2)
>>> test_two_args(**{'a':1, 'b':2})
(1, 2)
>>> test_two_args() # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(1) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(1, **{}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(1,2,3) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(1,2,3, **{}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(**{}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(*(), **{}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(**{'a':1}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
>>> test_two_args(**{'a':1, 'b':2, 'c':3}) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...
"""
return a,b
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