This tests the Blueprint.add_app_template_global mothod, which internally
calls the Blueprint.app_template_global method. The methods are used to
registering a function to the jinja template environment.
This PR increases the test coverage for module flask.blueprint by 4%.
Test both context_processor and app_context_processor functions.
Two context parameters are added into the context: one added to
the blueprint locally; another added to the app globally. The test
asserts the behaviors in both blueprint scope and the app scope.
The coverage for flask.blueprints is increased by 3%.
This test case registers an application-wise error handler from
a Blueprint. Verifies the error handler by aborting the flask app
from the application itself as well as from another registered
Blueprint.
