Find Out If a Function has been Called

Question

I am programming in Python, and I am wondering if i can test if a function has been called in my code

def example():
    pass
example()
#Pseudocode:
if exam         


        

Answer 1

We can use mock.Mock

from unittest import mock


def check_called(func):
    return mock.Mock(side_effect=func)


@check_called
def summator(a, b):
    print(a + b)


summator(1, 3)
summator.assert_called()
assert summator.called == True
assert summator.call_count > 0

summator.assert_called_with(1, 3)

summator.assert_called_with(1, 5)  # error
# AssertionError: Expected call: mock(1, 5)
# Actual call: mock(1, 3)