Run PyUnit tests in order

Question

Is there any way I can execute the tests in the order in which they were written?

What happens in PyUnit is whenever I run tests it run in alphabetical order. This means even if I have written TestA after TestB, TestA will run before TestA. Which is creating problems for me.

import unittest

class SimpleTestCase(unittest.TestCase):

    def testB(self):
        print "Test B"

    def testA(self):
        print "Test A"

I want testB to execute before testA.

And btw, you should use search feature more extensively in the future, because the question has been asked numerous times at SO. http://stackoverflow.com/questions/3843171/unit-testing-with-dependencies-between-tests http://stackoverflow.com/questions/4095319/unittest-tests-order — Michal, Jul 09 '13 at 09:21

score 1 · Answer 1 · answered May 07 '15 at 17:39

I found a solution for it using PyTest ordering plugin provided here.

Try py.test YourModuleName.py -vv in CLI and the test will run in the order they have appeared in your module (first testB and then testA)

I did the same thing and works fine for me.

Note: You need to install PyTest package and import it.

score 0 · Answer 2 · edited May 23 '17 at 12:02

0

If these are unit tests then they should be completely isolated, so you should check for design flaws in those tests.

If you really need for some reason, to use a specific order, than you have three ways of achieving this in python:

Using unittest - change sorting method, described here.
Using Proboscis - use the following decorator @test(depends_on=[list of dependecies]), found here.
Using nose - nose executes its unit tests in the order in which they appear in the module file. More info here.

edited May 23 '17 at 12:02

Community

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answered Jul 09 '13 at 09:19

Michal

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Hi Guys, I gone through the Answers And this is what i got. 1. use unittest.TestLoader.sortTestMethodsUsing = lambda _, x, y: cmp(y, x) or 2. Give the name such a way it gets executed in order. However I want don't want to change the name and I am not able to find any function for first solution though which i can execute the order in which it has been written. Any solution ??? – Gaurang Shah Jul 09 '13 at 10:55
@GaurangShah And why can't you use the other two solutions? – Michal Jul 09 '13 at 17:08

score -1 · Answer 3 · edited Apr 08 '17 at 23:05

-1

PyUnit uses TestLoaded which collects all testcases in a suite and runs them in alphabetical order

For example Test A runs before TEST B

In case you want to run TEST B first we have to create function and add Test B and then Test A

def suite():
    suite = unittest.TestSuite()
    suite.addTest(SimpleTestCase('test_B'))
    suite.addTest(SimpleTestCase('test_A'))
    return suite

edited Apr 08 '17 at 23:05

brennan

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answered Apr 08 '17 at 03:10

user2968076

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Whenever you link to a blog post, library, or other external resource you're involved in, [you must clearly indicate this](https://stackoverflow.com/help/promotion). – Nathan Tuggy Apr 08 '17 at 04:38

Run PyUnit tests in order

3 Answers3