How to Resolve 'RuntimeError: Working Outside of Application Context' in Unit Testing?

RuntimeError: Working Outside of Application Context

When attempting to unit test the before_request and input_info functions from the app.py module in test.py, a RuntimeError is encountered, indicating that the functions are being called outside of the application context.

To resolve this issue, the app.app_context() context manager must be used to create a testing application context within the unit tests. This context manager provides the necessary environment for the before_request and input_info functions to execute correctly.

Here's an example of how to use the app.app_context() context manager in the unit test:

from app import *
class Test(unittest.TestCase):         
    def test_connection1(self):  
        with app.app_context():
            object = TestMySQL()
            object.before_request()  # Should no longer throw a RuntimeError

In this test, the app.app_context() context manager wraps the call to the before_request function, creating the necessary test application context and resolving the RuntimeError.

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