在单元测试期间烧瓶app.config

Question

What is the best way handle unit tests that rely on calling code that in turn relies on the current app's configuration?

eg

code.py

from flask import current_app

def some_method():
    app = current_app._get_current_object()
    value = (app.config['APP_STATIC_VAR'])*10
    return value

test_code.py

class TestCode(unittest.TestCase):
    def test_some_method(self):
        app = create_app('app.settings.TestConfig')
        value = some_method()
        self.assertEqual(10, value)

Running the test above I get an 'RuntimeError: working outside of application context' error when the app = create_app('app.settings.TestConfig') line is executed.

Calling app = create_app during the test doesn't do the trick. What is the best way to unit test in this case where I am needing the config to be read in the the application?

Answer 1

You are using accessing the app within an app context when you call some_method() to fix it replace your call with:

with app.app_context():
    value = some_method()