Flask - Testing Flask ApplicationsWhich Python library is commonly used to mock external HTTP calls in Flask tests?ArequestsBunittest.mockCflask.testingDflask_sqlalchemyCheck Answer
Step-by-Step SolutionSolution:Step 1: Identify mocking libraries in PythonThe standard library unittest.mock provides tools to replace parts of your system under test with mock objects.Step 2: Recognize its use in Flask testsunittest.mock is widely used to mock external HTTP calls like requests.get in Flask testing.Final Answer:unittest.mock -> Option BQuick Check:Mocking library = unittest.mock [OK]Quick Trick: Use unittest.mock to patch external calls easily [OK]Common Mistakes:MISTAKESConfusing requests as a mocking toolUsing flask_sqlalchemy for mockingAssuming flask.testing mocks HTTP calls
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