A command-line tool and Python library and Pytest plugin for automated testing of RESTful APIs, with a simple, concise and flexible YAML-based syntax

Overview
https://travis-ci.org/taverntesting/tavern.svg?branch=master https://readthedocs.org/projects/pip/badge/?version=latest&style=flat

1.0 Release

See here for details about breaking changes with the upcoming 1.0 release: https://github.com/taverntesting/tavern/issues/495

Easier API testing

Tavern is a pytest plugin, command-line tool and Python library for automated testing of APIs, with a simple, concise and flexible YAML-based syntax. It's very simple to get started, and highly customisable for complex tests. Tavern supports testing RESTful APIs as well as MQTT based APIs.

The best way to use Tavern is with pytest. Tavern comes with a pytest plugin so that literally all you have to do is install pytest and Tavern, write your tests in .tavern.yaml files and run pytest. This means you get access to all of the pytest ecosystem and allows you to do all sorts of things like regularly run your tests against a test server and report failures or generate HTML reports.

You can also integrate Tavern into your own test framework or continuous integration setup using the Python library, or use the command line tool, tavern-ci with bash scripts and cron jobs.

To learn more, check out the examples or the complete documentation. If you're interested in contributing to the project take a look at the GitHub repo.

Quickstart

First up run pip install tavern.

Then, let's create a basic test, test_minimal.tavern.yaml:

---
# Every test file has one or more tests...
test_name: Get some fake data from the JSON placeholder API

# ...and each test has one or more stages (e.g. an HTTP request)
stages:
  - name: Make sure we have the right ID

    # Define the request to be made...
    request:
      url: https://jsonplaceholder.typicode.com/posts/1
      method: GET

    # ...and the expected response code and body
    response:
      status_code: 200
      json:
        id: 1

This file can have any name, but if you intend to use Pytest with Tavern, it will only pick up files called test_*.tavern.yaml.

This can then be run like so:

$ pip install tavern[pytest]
$ py.test test_minimal.tavern.yaml  -v
=================================== test session starts ===================================
platform linux -- Python 3.5.2, pytest-3.4.2, py-1.5.2, pluggy-0.6.0 -- /home/taverntester/.virtualenvs/tavernexample/bin/python3
cachedir: .pytest_cache
rootdir: /home/taverntester/myproject, inifile:
plugins: tavern-0.7.2
collected 1 item

test_minimal.tavern.yaml::Get some fake data from the JSON placeholder API PASSED   [100%]

================================ 1 passed in 0.14 seconds =================================

It is strongly advised that you use Tavern with Pytest - not only does it have a lot of utility to control discovery and execution of tests, there are a huge amount of plugins to improve your development experience. If you absolutely can't use Pytest for some reason, use the tavern-ci command line interface:

$ pip install tavern
$ tavern-ci --stdout test_minimal.tavern.yaml
2017-11-08 16:17:00,152 [INFO]: (tavern.core:55) Running test : Get some fake data from the JSON placeholder API
2017-11-08 16:17:00,153 [INFO]: (tavern.core:69) Running stage : Make sure we have the right ID
2017-11-08 16:17:00,239 [INFO]: (tavern.core:73) Response: '<Response [200]>' ({
  "userId": 1,
  "id": 1,
  "title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
  "json": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto"
})
2017-11-08 16:17:00,239 [INFO]: (tavern.printer:9) PASSED: Make sure we have the right ID [200]

Why not Postman, Insomnia or pyresttest etc?

Tavern is a focused tool which does one thing well: automated testing of APIs.

Postman and Insomnia are excellent tools which cover a wide range of use-cases for RESTful APIs, and indeed we use Tavern alongside Postman. However, specifically with regards to automated testing, Tavern has several advantages over Postman:

  • A full-featured Python environment for writing easily reusable custom validation functions
  • Testing of MQTT based systems in tandem with RESTful APIS.
  • Seamless integration with pytest to keep all your tests in one place
  • A simpler, less verbose and clearer testing language

Tavern does not do many of the things Postman and Insomnia do. For example, Tavern does not have a GUI nor does it do API monitoring or mock servers. On the other hand, Tavern is free and open-source and is a more powerful tool for developers to automate tests.

pyresttest is a similar tool to Tavern for testing RESTful APIs, but is no longer actively developed. On top of MQTT testing, Tavern has several other advantages over PyRestTest which overall add up to a better developer experience:

  • Cleaner test syntax which is more intuitive, especially for non-developers
  • Validation function are more flexible and easier to use
  • Better explanations of why a test failed

Hacking on Tavern

If you want to add a feature to Tavern or just play around with it locally, it's a good plan to first create a local development environment (this page has a good primer for working with development environments with Python). After you've created your development environment, just pip install tox and run tox to run the unit tests. If you want to run the integration tests, make sure you have docker installed and run tox -c tox-integration.ini (bear in mind this might take a while.) It's that simple!

If you want to develop things in tavern, enter your virtualenv and run pip install -r requirements.txt to install the library, any requirements, and other useful development options.

Tavern uses [black](https://github.com/ambv/black) to keep all of the code formatted consistently. There is a pre-commit hook to run black which can be enabled by running pre-commit install.

If you want to add a feature to get merged back into mainline Tavern:

  • Add the feature you want
  • Add some tests for your feature:
    • If you are adding some utility functionality such as improving verification of responses, adding some unit tests might be best. These are in the tests/unit/ folder and are written using Pytest.
    • If you are adding more advanced functionality like extra validation functions, or some functionality that directly depends on the format of the input YAML, it might also be useful to add some integration tests. At the time of writing, this is done by adding an example flask endpoint in tests/integration/server.py and a corresponding Tavern YAML test file in the same directory. This will be cleaned up a bit once we have a proper plugin system implemented.
  • Open a pull request.

Acknowledgements

Tavern makes use of several excellent open-source projects:

Maintenance

Tavern is currently maintained by

  • @michaelboulton
An Instagram bot that can mass text users, receive and read a text, and store it somewhere with user details.

Instagram Bot ๐Ÿค– July 14, 2021 Overview ๐Ÿ‘ A multifunctionality automated instagram bot that can mass text users, receive and read a message and store

Abhilash Datta 14 Dec 06, 2022
Wraps any WSGI application and makes it easy to send test requests to that application, without starting up an HTTP server.

WebTest This wraps any WSGI application and makes it easy to send test requests to that application, without starting up an HTTP server. This provides

Pylons Project 325 Dec 30, 2022
A test fixtures replacement for Python

factory_boy factory_boy is a fixtures replacement based on thoughtbot's factory_bot. As a fixtures replacement tool, it aims to replace static, hard t

FactoryBoy project 3k Jan 05, 2023
A Python program that will log into your scheduled Google Meets hands free

Chrome GMautomation General Information This Python program will open up Chrome and log into your scheduled Google Meet with camera and mic turned off

Jonathan Leow 5 Dec 31, 2021
Ab testing - The using AB test to test of difference of conversion rate

Facebook recently introduced a new type of offer that is an alternative to the current type of bidding called maximum bidding he introduced average bidding.

5 Nov 21, 2022
Travel through time in your tests.

time-machine Travel through time in your tests. A quick example: import datetime as dt

Adam Johnson 373 Dec 27, 2022
์ž๋™ ๊ฑด๊ฐ•์ƒํƒœ ์ž๊ฐ€์ง„๋‹จ ๋ฉ”ํฌ๋กœ ์„œ๋ฒ„์ „์šฉ

Auto-Self-Diagnosis-for-server ์ž๋™ ์ž๊ฐ€์ง„๋‹จ ๋ฉ”ํฌ๋กœ ์„œ๋ฒ„์ „์šฉ ์ด ํ”„๋กœ๊ทธ๋žจ์€ SaidBySolo๋‹˜์˜ auto-self-diagnosis๋ฅผ ์ฐธ๊ณ ํ•˜์—ฌ ์ œ์ž‘ํ•˜์˜€์Šต๋‹ˆ๋‹ค. ๊ฐœ์ธ ์‚ฌ์šฉ ๋ชฉ์ ์œผ๋กœ ์ œ์ž‘ํ•˜์˜€๊ธฐ ๋•Œ๋ฌธ์— ์ถ”ํ›„ ์—…๋ฐ์ดํŠธ๋Š” ์ง„ํ–‰ํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ์˜์กด์„ฑ G

JJooni 3 Dec 04, 2021
Show coverage stats online via coveralls.io

Coveralls for Python Test Status: Version Info: Compatibility: Misc: coveralls.io is a service for publishing your coverage stats online. This package

Kevin James 499 Dec 28, 2022
The Social-Engineer Toolkit (SET) repository from TrustedSec - All new versions of SET will be deployed here.

๐Ÿ’ผ The Social-Engineer Toolkit (SET) ๐Ÿ’ผ Copyright 2020 The Social-Engineer Toolkit (SET) Written by: David Kennedy (ReL1K) @HackingDave Company: Trust

trustedsec 8.4k Dec 31, 2022
Generate random test credit card numbers for testing, validation and/or verification purposes.

Generate random test credit card numbers for testing, validation and/or verification purposes.

Dark Hunter 141 5 Nov 14, 2022
Testinfra test your infrastructures

Testinfra test your infrastructure Latest documentation: https://testinfra.readthedocs.io/en/latest About With Testinfra you can write unit tests in P

pytest-dev 2.1k Jan 07, 2023
The Good Old Days. | Testing Out A New Module-

The-Good-Old-Days. The Good Old Days. | Testing Out A New Module- Installation Asciimatics supports Python versions 2 & 3. For the precise list of tes

Syntax. 2 Jun 08, 2022
How to Create a YouTube Bot that Increases Views using Python Programming Language

YouTube-Bot-in-Python-Selenium How to Create a YouTube Bot that Increases Views using Python Programming Language. The app is for educational purpose

Edna 14 Jan 03, 2023
Redis fixtures and fixture factories for Pytest.

Redis fixtures and fixture factories for Pytest.This is a pytest plugin, that enables you to test your code that relies on a running Redis database. It allows you to specify additional fixtures for R

Clearcode 86 Dec 23, 2022
Python Webscraping using Selenium

Web Scraping with Python and Selenium The code shows how to do web scraping using Python and Selenium. We use as data the https://sbot.org.br/localize

Luรญs Miguel Massih Pereira 1 Dec 01, 2021
pytest plugin for manipulating test data directories and files

pytest-datadir pytest plugin for manipulating test data directories and files. Usage pytest-datadir will look up for a directory with the name of your

Gabriel Reis 191 Dec 21, 2022
API Rest testing FastAPI + SQLAchmey + Docker

Transactions API Rest Implement and design a simple REST API Description We need to a simple API that allow us to register users' transactions and hav

TxeMac 2 Jun 30, 2022
Minimal example of getting Django + PyTest running on GitHub Actions

Minimal Django + Pytest + GitHub Actions example This minimal example shows you how you can runs pytest on your Django app on every commit using GitHu

Matt Segal 5 Sep 19, 2022
A Python Selenium library inspired by the Testing Library

Selenium Testing Library Slenium Testing Library (STL) is a Python library for Selenium inspired by Testing-Library. Dependencies Python 3.6, 3.7, 3.8

Anลพe Peฤar 12 Dec 26, 2022
The source code and slide for my talk about the subject: unittesing in python

PyTest Talk This talk give you some ideals about the purpose of unittest? how to write good unittest? how to use pytest framework? and show you the ba

nguyenlm 3 Jan 18, 2022