Python - How To Write Pytest

Assert

• For integer assertions:

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assert (1==1)

• For float assertions:

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import pytest
1.0==pytest.approx(1.0)

• For numpy array assertions:

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import numpy as np
array1 = np.array([1, 2, 3])
array2 = np.array([1, 2, 3])
np.testing.assert_allclose(array1, array2)

Using VSCode Debugger With Pytest

1. ctrl+shift+p choose debug tests in the current file or debug all tests (if you want to debug all tests under a configured directory)
2. In my debugger, I found that I have to manually set a breakpoint before the failure point in Pytest. (I might miss an easier route to get around this)
3. At the failed test, right click, and choose debug test

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