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Learn Python by Building Data Science Applications
book

Learn Python by Building Data Science Applications

by Philipp Kats, David Katz
August 2019
Beginner
482 pages
12h 56m
English
Packt Publishing
Content preview from Learn Python by Building Data Science Applications

Testing with PyTest

In fact, poetry even generates a test function for us, though it doesn't test our code; instead, it checks the version. Take a look at the code here:

from wikiwwii import __version__def test_version():    assert __version__ == '0.1.0'

Here, two things are worth discussing. First, as you can see, the test is just a function with the word "test" in its name. Having this word is necessary—this is the way pytest finds all the tests. Second, each test results in one or a few assert statements. To pass the test, assert should not raise any issues. That's all the basics of test development. 

Now let's run this existing test; generally speaking, all we need is to type pytest tests on the command line. With poetry, however, we have ...

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Publisher Resources

ISBN: 9781789535365Supplemental Content