Testing
In this video we discuss how Python doc strings and systematic testing can be used to increase the confidence in the correctness of a Python program. The tools doctest, pytest and unittest are introduced together with the IDLE debugger and stack viewer.
Lecture in Danish.
00:00 Motivation for testing and documentation
10:32 assert
14:42 Example integer square root
16:43 Docstring
18:54 Defensive programming
23:37 Testing a predefined set of examples
24:20 Testing invariants
26:39 Example: Binary search
34:13 Differenting testing strategies
36:18 Visual test
37:20 doctest
39:23 pytest
41:25 unittest
42:20 Debugger (IDLE)
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