How can I use mocking in Flask testing?

How can I use mocking in Flask testing?

You can use the unittest.mock library to mock dependencies in your Flask tests. This allows you to isolate the code you're testing.

Can you give me an example of mocking a database call?

Sure! You can use patch to replace the database call with a mock object. For example:

from unittest.mock import patch

@patch('yourapp.models.db.session')
def test_your_function(mock_db_session):
    mock_db_session.query.return_value = [MockedData()]
    # Your test code here

What about testing routes with mocked services?

You can mock services in your route tests similarly. Use patch to mock the service calls within your route functions.

Are there any best practices for mocking in tests?

Yes, keep your mocks as simple as possible, only mock what you need, and ensure your tests remain readable.