35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
![]() |
# Sebastian Raschka 2014-2020
|
||
|
# mlxtend Machine Learning Library Extensions
|
||
|
#
|
||
|
# A counter class for printing the progress of an iterator.
|
||
|
# Author: Sebastian Raschka <sebastianraschka.com>
|
||
|
#
|
||
|
# License: BSD 3 clause
|
||
|
|
||
|
|
||
|
def assert_raises(exception_type, message, func, *args, **kwargs):
|
||
|
"""Check that an exception is raised with a specific message
|
||
|
|
||
|
Parameters
|
||
|
----------
|
||
|
exception_type : exception
|
||
|
The exception that should be raised
|
||
|
message : str (default: None)
|
||
|
The error message that should be raised. Ignored if False or None.
|
||
|
func : callable
|
||
|
The function that raises the exception
|
||
|
*args : positional arguments to `func`.
|
||
|
**kwargs : keyword arguments to `func`
|
||
|
|
||
|
"""
|
||
|
try:
|
||
|
func(*args, **kwargs)
|
||
|
except exception_type as e:
|
||
|
error_message = str(e)
|
||
|
if message and message not in error_message:
|
||
|
raise AssertionError("Error message differs from the expected"
|
||
|
" string: %r. Got error message: %r" %
|
||
|
(message, error_message))
|
||
|
else:
|
||
|
raise AssertionError('%s not raised.' % exception_type.__name__)
|