doctest

问题 Have a function fix(), as a helper function to an output function which writes strings to a text file. def fix(line): """ returns the corrected line, with all apostrophes prefixed by an escape character >>> fix('DOUG\'S') 'DOUG\\\'S' """ if '\'' in line: return line.replace('\'', '\\\'') return line Turning on doctests, I get the following error: Failed example: fix('DOUG'S') Exception raised: Traceback (most recent call last): File "/System/Library/Frameworks/Python.framework/Versions/2.7

问题 I'm trying to create a doctest with mock of function that resides in a separate module and that is imported as bellow from foomodule import foo def bar(): """ >>> from minimock import mock >>> mock('foo', nsdicts=(bar.func_globals,), returns=5) >>> bar() Called foo() 10 """ return foo() * 2 import doctest doctest.testmod() foomodule.py: def foo(): raise ValueError, "Don't call me during testing!" This fails. If I change import to import foomodule and use foomodule.foo everywhere Then it works

问题 Seems like it would be a good way to introduce some people to unit testing. 回答1: Well for one thing, the documentation for doctest talks about "interactive Python sessions". There's no equivalent of that in C#... so how would the output be represented? How would you perform all the necessary setup? I dare say such a thing would be possible, but personally I think that at least for C#, it's clearer to have unit tests as unit tests , where you have all the benefits of the fact that you're

问题 Is there a way to write a python doctest string to test a script intended to be launched from the command line (terminal) that doesn't pollute the documentation examples with os.popen calls? #!/usr/bin/env python # filename: add """ Example: >>> import os >>> os.popen('add -n 1 2').read().strip() '3' """ if __name__ == '__main__': from argparse import ArgumentParser p = ArgumentParser(description=__doc__.strip()) p.add_argument('-n',type = int, nargs = 2, default = 0,help = 'Numbers to add.')

问题 I know how to skip a doctest using # doctest: +SKIP , but I can't figure out how to skip a test sometimes , based on a runtime condition. For example: >>> if os.path.isfile("foo"): ... open("foo").readlines() ... else: ... pass # doctest: +SKIP ['hello', 'world'] That's the sort of thing I want to do. I would also accept a solution which runs the test, but changes the expected result to an exception with traceback if the condition is not met (i.e. run the test unconditionally but modify the

问题 I have a unit test that I'd like to write for a function that takes XML as a string. It's a doctest and I'd like the XML in-line with the tests. Since the XML is multi-line, I tried a string literal within the doctest, but no success. Here's simplified test code: def test(): """ >>> config = \"\"\"\ <?xml version="1.0"?> <test> <data>d1</data> <data>d2</data> </test>\"\"\" """ if __name__ == "__main__": import doctest doctest.testmod(name='test') The error I get is File "<doctest test.test[0]

问题 I'm trying this for almost two hours now, without any luck. I have a module that looks like this: try: from zope.component import queryUtility # and things like this except ImportError: # do some fallback operations <-- how to test this? Later in the code: try: queryUtility(foo) except NameError: # do some fallback actions <-- this one is easy with mocking # zope.component.queryUtility to raise a NameError Any ideas? EDIT: Alex's suggestion doesn't seem to work: >>> import __builtin__ >>>

问题 I have a sample doctest like this one. """ This is the "iniFileGenerator" module. >>> hintFile = "./tests/unit_test_files/hint.txt" >>> f = iniFileGenerator(hintFile) >>> print f.hintFilePath ./tests/unit_test_files/hint.txt """ class iniFileGenerator: def __init__(self, hintFilePath): self.hintFilePath = hintFilePath def hello(self): """ >>> f.hello() hello """ print "hello" if __name__ == "__main__": import doctest doctest.testmod() When I execute this code, I got this error. Failed example

问题 If I run the following command: >python manage.py test Django looks at tests.py in my application, and runs any doctests or unit tests in that file. It also looks at the __ test __ dictionary for extra tests to run. So I can link doctests from other modules like so: #tests.py from myapp.module1 import _function1, _function2 __test__ = { "_function1": _function1, "_function2": _function2 } If I want to include more doctests, is there an easier way than enumerating them all in this dictionary?

问题 I am trying to define a function to return squares for integers within a given range: #this is my code def squares(start, end): """ Given the starting and ending numbers, return a list of the squares of the numbers from start to end. >>>squares(1, 5) [1, 4, 9, 16, 25] >>>squares(2, 4) [4, 9, 16] >>>squares(0, 1) [0, 1] >>>squares(0, 2) [0, 1, 4] """ return [i**2 for i in range(start, end+1)] if __name__ == "__main__": import doctest doctest.testmod(verbose=True, optionflags=doctest.NORMALIZE