What is mock testing in Python?

What is mock testing in Python?

Mock testing in Python involves creating mock objects to simulate the behavior of real objects in your code, allowing you to test components in isolation.

Why should I use mock testing instead of real objects?

Using mock testing helps isolate the unit of code being tested, making tests faster and more reliable by avoiding dependencies on external systems.

Can you show me an example of mock testing in Python?

Sure! Here's a simple example using the unittest.mock library:

from unittest.mock import Mock

def fetch_data(api):
    return api.get_data()

mock_api = Mock()
mock_api.get_data.return_value = 'mocked data'

result = fetch_data(mock_api)
print(result)  # Output: mocked data