The TestFixtures project offers a collection of helpers and mock objects that are useful when writing unit tests or doc tests.
The available helpers and mock objects are listed below, for functional examples, see the contents of the tests folder.
Comparison
This class lets you instantiate placeholders that can be used to compared expected results with actual results where objects in the actual results do not support useful comparison. The comparision can be based just on the type of the object, which is particularly handy when comparing sequences returned from tested code.
compare
A replacement for assertEquals and the failUnless(x() is True) pattern. Gives more useful differences when the arguments aren't the same, particularly for sequences and long strings.
diff
This function will compare two strings and give a unified diff of their comparison. Handy as a third parameter to unittest.TestCase.assertEquals.
generator
This function will return a generator that yields the arguments it was called with when the generator is iterated over.
LogCapture
This helper allows you to capture log messages for specified loggers in doctests.
log_capture
This decorator allows you to capture log messages for specified loggers for the duration of unittest methods.
replace
This decorator enables you to replace objects such as classes and functions for the duration of a unittest method. The replacements are removed regardless of what happens during the test.
Replacer
This helper enables you to replace objects such as classes and functions from within doctests and then restore the originals once testing is completed.
should_raise
This is a better version of assertRaises that lets you check the exception raised is not only of the correct type but also has the correct parameters.
test_date
This is a handy class factory that returns datetime.date replacements that have a today method that gives repeatable, specifiable, testable dates.
test_datetime
This is a handy class factory that returns datetime.datetime replacements that have a now method that gives repeatable, specifiable, testable datetimes.
test_time
This is a handy replacement for time.time that gives repeatable, specifiable, testable times.
wrap
This is a generic decorator for wrapping method and function calls with a try-finally and having code executed before the try and as part of the finally.
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Requirements:
· Python
What's New in This Release: [ read full changelog ]
· fixed a bug where the @replace decorator passed a classmethod rather than the replacment to the decorated callable when replacing a classmethod
· added set method to test_date,test_datetime and test_time to allow setting the parameters for the next instance to be returned.
· added delta and delta_type parameters to test_date,test_datetime and test_time to control the intervals between returned instances.
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