def test_manual_pos_and_keyword():
result = colors_manual('yellow', 'gray', link_color='purple')
# these aren't exhaustive by any means
print(result)
assert 'foreground: yellow' in result
assert 'background: gray' in result
assert 'link: purple' in result
def test_manual_duplicate():
"""
It's an error to have a keyword argument that duplicates a
positional one
"""
# this is the nifty pytest way to check for Exceptions
with pytest.raises(TypeError):
result = colors_manual('yellow', fore_color='purple')
print(result)
def test_manual_call_tuple():
t = ('red', 'blue', 'yellow', 'chartreuse')
result = colors_manual(*t)
# these aren't exhaustive by any means
# but mostly I want to make the code runs without error
print(result)
assert 'red' in result
assert 'blue' in result
assert 'chartreuse' in result
def test_manual_duplicate2():
"""
It's an error to have a keyword argument that duplicates a
positional one
"""
# this is a way to do it by hand:
try:
result = colors_manual('yellow', fore_color='purple')
print(result)
assert False
except TypeError as err:
# you can also check if the error message is what you expect
assert "multiple values for argument" in err.args[0]
def test_manual_call_tuple_dict():
t = ('red', 'blue')
d = {'visited_color': 'cyan',
'link_color': 'green',
}
result = colors_manual(*t, **d)
print(result)
assert 'foreground: red' in result
assert 'background: blue' in result
assert 'visited: cyan' in result
assert 'link: green' in result
def test_manual_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'}
result = colors_manual('blue', *t, link_color='orange', **d)
print(result)
assert 'foreground: blue' in result
assert 'background: red' in result
assert 'visited: cyan' in result
assert 'link: orange' in result
def test_manual_call_undefined_kwarg():
# should get an error passing in non-existand keyword
with pytest.raises(TypeError):
result = colors_manual(weird_color='grey')
def test_manual_one_keyword():
result = colors_manual(link_color='purple')
# these aren't exhaustive by any means
# but mostly I want to make the code runs without error
print(result)
assert 'link: purple' in result