Introduction

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Example Code

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• Unittest is a built-in Python unit testing framework
• Other popular unit testing frameworks for Python include pytest and nose
• Object oriented programming is a way of encapsulating data and the functions that operate on that data together
• Run a set of Unittest unit tests using python -m unittest followed by the script filename containing the tests that begins with test_

Creating a New Test

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• Unit tests check that functions behave as expected
• Re-running tests ensures code changes don’t break behaviour
• Use edge cases and different paths through your code to create effective tests

Handling Errors

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• Code should validate their inputs and raise clear exceptions when needed
• unittest can test for exceptions with assertRaises
• Testing errors is part of good testing practice