def test_call_duplicate():
"""
This was an error above -- but is not here -- no keyword arguments
to duplicate!
"""
args, kwargs = call_colors('yellow', fore_color='purple')
assert args == ('yellow', )
assert kwargs == {'fore_color': 'purple'}
def test_call_call_tuple():
t = ('red', 'blue', 'yellow', 'chartreuse')
args, kwargs = call_colors(*t)
# This is straighforward -- the args tuple should be the one passed in!
assert args == t
# But it is NOT the SAME tuple!
assert args is not t
# and an empty kwargs dict
assert kwargs == {} # multiple ways to test for an empty dict.
def test_call_call_tuple_dict():
t = ('red', 'blue')
d = {'visited_color': 'cyan',
'link_color': 'green',
}
args, kwargs = call_colors(*t, **d)
# this should be just what's passed in.
assert args == t
assert kwargs == d
def test_call_call_dict():
d = {'fore_color': 'red',
'visited_color': 'cyan',
'link_color': 'green',
'back_color': 'blue',
}
args, kwargs = call_colors(**d)
# also easy -- should be the dict passed in
assert kwargs == d
assert args == tuple()
def test_call_call_everything():
"""
this one uses:
- a positional argument
- *tuple
- a keyword argument
- **dict
"""
t = ('red', ) # note the extra comma to amke it a tuple!
d = {'visited_color': 'cyan'}
args, kwargs = call_colors('blue', *t, link_color='orange', **d)
# This one is more interesting:
assert args == ('blue', ) + t
assert args == ('blue', 'red') # a different way to spell the same thing
assert kwargs == {'visited_color': 'cyan', 'link_color': 'orange'}
# or:
d['link_color'] = 'orange'
assert kwargs == d
def test_call_pos_and_keyword():
args, kwargs = call_colors('yellow', 'gray', link_color='purple')
assert args == ('yellow', 'gray')
assert kwargs == {'link_color': 'purple'}
def test_call_one_keyword():
args, kwargs = call_colors(link_color='purple')
assert not args
assert kwargs['link_color'] == 'purple'
assert len(kwargs) == 1
def test_call_all_positional():
args, kwargs = call_colors('red', 'blue', 'yellow', 'chartreuse')
assert not kwargs
assert args == ('red', 'blue', 'yellow', 'chartreuse')
def test_call_one_keyword():
args, kwargs = call_colors(link_color='purple')
assert not args # args should be an empty tuple
assert kwargs['link_color'] == 'purple'
assert len(kwargs) == 1 # only one entry in the kwargs dict
def test_call_all_positional():
args, kwargs = call_colors('red', 'blue', 'yellow', 'chartreuse')
# no kwrags, they should all be in the args tuple:
assert not kwargs # kwargs is empty
assert args == ('red', 'blue', 'yellow', 'chartreuse')
