How do I assert exceptions in Python tests?
An example of an AI chatbot conversation about asserting exceptions in Python tests.
How do I assert exceptions in Python tests?
You can use the pytest framework with the pytest.raises context manager to assert exceptions in your tests.
Can you show me an example of that?
Sure! Here's a simple example:
import pytest
def test_divide_by_zero():
with pytest.raises(ZeroDivisionError):
1 / 0
What if I want to check the exception message?
You can capture the exception and check its message like this:
import pytest
def test_divide_by_zero():
with pytest.raises(ZeroDivisionError) as excinfo:
1 / 0
assert str(excinfo.value) == 'division by zero'
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