flask/examples/patterns/largerapp/tests/test_largerapp.py

# -*- coding: utf-8 -*-
"""
Larger App Tests
~~~~~~~~~~~~~~~~

:copyright: © 2010 by the Pallets team.
:license: BSD, see LICENSE for more details.
"""

from yourapplication import app
import pytest

@pytest.fixture
def client():
    app.config['TESTING'] = True
    client = app.test_client()
    return client

def test_index(client):
    rv = client.get('/')
    assert b"Hello World!" in rv.data