Using WebTest

WebTest (http://webtest.readthedocs.io) has been around for a long time. It was written by Ian Bicking back in the days of the Paste project, and is based on the WebOb (http://docs.webob.org) project, which provides a Request and Response class similar (but not compatible) to Flask's.

WebTest wraps call to a WSGI application like FlaskTest does, and lets you interact with it. WebTest is somewhat similar to FlaskTest, with a few extra helpers when dealing with JSON, and a neat feature to call non-WSGI applications.

To use it with Flask, you can install the flask-webtest package (https://flask-webtest.readthedocs.io/), and you will get a similar integration level as Flask's native tool:

    import unittest 
    from flask_basic import app as tested_app 
    from flask_webtest import TestApp 

    class TestMyApp(unittest.TestCase): 
        def test_help(self): 
            # creating a client to interact with the app 
            app = TestApp(tested_app) 

            # calling...