#100DaysOfCode in Python Transcripts
Chapter: Days 10-12: Testing your code with pytest
Lecture: Concepts: what did we learn
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Let's review what we've learned so far.
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In this lesson we used a guessing game to write pytest.
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And the game went like this.
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There were a maximum of 5 attempts to guess a number
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and you got feedback if the number was too low or too high.
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We compared pytest to unittest
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and saw that it's pretty succinct.
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For unittest you need a class and self-serve
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equal syntax.
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pytest just lets you write functions.
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And this is a very simple example,
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but you're already see that pytest requires far less code.
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pytest has nicely formatted outputs.
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For example, if a fail,
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then we pass.
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We saw pytest code to show how much of our code
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was on our test and where tests were missing
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it showed the lines in our script.
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We saw mocking in action, by mocking out the building input.
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Because we wanted to control what the input function
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returned when playing a game.
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We also saw an example of mocking out the randint() function.
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We also saw how to test exceptions
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with pytest, which is pretty easy.
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And we saw how to get your outputs
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from your program using the capfd.
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And that's nice because then we can check
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if the output was as expected.
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And here we have a complete game,
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wrapped into a test.
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And then we did some TDD on Fizz Buzz,
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writing tests, writing a bit of code,
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writing for more tests, some more code,
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some more tests
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and some more code.
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And notice here we used the parameterize
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feature to prevent duplicating a lot of test code.
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So it takes a list of typals and in the body
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of the test function, I can just do one assert.
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So, that's how we kept it dry.
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And again, the output is very nice.
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Alright, that was quite some material to take in.
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I hope you are more comfortable with pytest now.
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And now, it's your turn.
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Keep calm and code in Python.
