Introduction to pytest

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%FNP#FGPSF import unittest ! ! def upper_reverse(text):
return ''.join(reversed(text.upper())) ! ! class TestUpperReverse(unittest.TestCase): def test_upper_reverse(self): self.assertEqual(upper_reverse('hello'), 'OLLEH')

%FNP"GUFS def upper_reverse(text): return ''.join(reversed(text.upper()))
! ! def test_upper_reverse(): assert upper_reverse('hello') == 'OLLEH'

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3VOUIFFOUJSFUFTUTVJUF $ py.test

3VOBMMUFTUTJOBTQFDJpDpMF $ py.test test_bar.py

3VOBMMUFTUDBTFTUIBUBSFOBNFE UFTU@GPP $ py.test -‐k test_foo

#ZEFGBVMU QZUFTUEJTDPWFSTUFTUTJO test_*.py *_test.py

.BSLJOHUFTUT ZPVDBONBLFVQZPVSPXONBSLFST import pytest ! ! @pytest.mark.slow def
test_very_long_running_test(): pass

3VOBMMUFTUTXJUIBTQFDJpDNBSLFS $ py.test -‐m slow

PSXJUIPVUBTQFDJpDNBSLFS $ py.test -‐m "not slow"

4LJQQJOHUFTUT import pytest import sys ! ! @pytest.mark.skipif(sys.platform
== 'darwin', reason='Feature Y not supported on OS X') def test_non_osx(): pass

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%FQFOEFODZJOKFDUJPOPGUFTUIFMQFS import pytest from selenium.webdriver import Firefox !
@pytest.fixture def webdriver(request): driver = Firefox() request.addfinalizer(driver.quit) return driver ! def test_nix_website_title(webdriver): webdriver.get('https://nixos.org/nix/') assert 'Nix' in webdriver.title ! def test_pytest_website_title(webdriver): webdriver.get('http://pytest.org/latest/')

3VOUFTUTJOGPVSQSPDFTTFT $ pip install pytest-‐xdist $ py.test -‐n 4

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Introduction to pytest

Introduction to pytest

Andreas Pelme

More Decks by Andreas Pelme

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5FTUTXJUIMFTTCPJMFSQMBUF

%FNPUJNF

%FNP#FGPSF import unittest ! ! def upper_reverse(text):

%FNP"GUFS def upper_reverse(text): return ''.join(reversed(text.upper()))

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3VOOJOHUIFUFTUT

3VOUIFFOUJSFUFTUTVJUF $ py.test

3VOBMMUFTUTJOBTQFDJpDpMF $ py.test test_bar.py

3VOBMMUFTUDBTFTUIBUBSFOBNFE UFTU@GPP $ py.test -‐k test_foo

#ZEFGBVMU QZUFTUEJTDPWFSTUFTUTJO test_.py _test.py

.BSLJOHUFTUT ZPVDBONBLFVQZPVSPXONBSLFST import pytest ! ! @pytest.mark.slow def

3VOBMMUFTUTXJUIBTQFDJpDNBSLFS $ py.test -‐m slow

PSXJUIPVUBTQFDJpDNBSLFS $ py.test -‐m "not slow"

4LJQQJOHUFTUT import pytest import sys ! ! @pytest.mark.skipif(sys.platform

%FQFOEFODZJOKFDUJPOPGUFTUpYUVSFT QZUFTUpYUVSFT

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%FQFOEFODZJOKFDUJPOPGUFTUIFMQFS import pytest from selenium.webdriver import Firefox !

3VOUFTUTJOGPVSQSPDFTTFT $ pip install pytest-‐xdist $ py.test -‐n 4

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