Test fixtures with pytest in Flask - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the pytest module.

Flask

import [1]

Drag options to blanks, or click blank then click option'

Aflask

Bunittest

Cpytest

Drequests

Attempts:

3 left

💡 Hint

Common Mistakes

Importing flask instead of pytest

Using unittest which is a different testing framework

We import pytest to use its testing features including fixtures.

2fill in blank

medium

Complete the code to define a pytest fixture that creates a Flask app instance.

Flask

@pytest.fixture
def app():
    app = Flask(__name__)
    app.config['TESTING'] = [1]
    return app

Drag options to blanks, or click blank then click option'

AFalse

BTrue

CNone

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Setting TESTING to False disables testing features

Using None or 0 instead of True

Setting TESTING to True enables testing mode in Flask.

3fill in blank

hard

Fix the error in the test function to use the fixture correctly.

Flask

def test_home([1]):
    response = app.test_client().get('/')
    assert response.status_code == 200

Drag options to blanks, or click blank then click option'

Aapp

Brequest

Cfixture

Dclient

Attempts:

3 left

💡 Hint

Common Mistakes

Using a parameter name that does not match the fixture

Not passing any parameter to the test function

The fixture named app must be passed as a parameter to the test function.

4fill in blank

hard

Fill both blanks to create a fixture that provides a test client from the Flask app fixture.

Flask

@pytest.fixture
def client([1]):
    return [2].test_client()

Drag options to blanks, or click blank then click option'

Aapp

Bclient

Crequest

Dflask_app

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong fixture name as parameter

Returning something other than the test client

The client fixture depends on the app fixture and returns its test client.

5fill in blank

hard

Fill all three blanks to write a test using the client fixture to check the home page response.

Flask

def test_home_page([1]):
    response = [2].get('/')
    assert response.[3] == 200

Drag options to blanks, or click blank then click option'

Aclient

Cstatus_code

Dapp

Attempts:

3 left

💡 Hint

Common Mistakes

Using app instead of client in the test function

Checking a wrong attribute instead of status_code

The test function uses the client fixture to send a GET request and checks the status_code.