Test & Code

Latest Episodes:

171: How and why I use pytest's xfail - Paul Ganssle Nov 22, 2021

Show notes

Paul Ganssle, is a software developer at Google, core Python dev, and open source maintainer for many projects, has some thoughts about pytest's xfail.
He was an early skeptic of using xfail, and is now an proponent of the feature.
In this episode, we talk about some open source workflows that are possible because of xfail.

Special Guest: Paul Ganssle.

Links:

How and why I use pytest's xfail — Paul's blog post mentioned in the episode
Craft Minimal Bug Reports — Matthew Rocklin's article
episode 111: Subtests in Python with unittest and pytest - Paul Ganssle
episode 165: pytest xfail policy and workflow
episode 166: unittest expectedFailure and xfail

pytest for Data Science and Machine Learning - Prayson Daniel Nov 18, 2021

Show notes

Prayson Daniel, a principle data scientist, discusses testing machine learning pipelines with pytest.

Prayson is using pytest for some pretty cool stuff, including:

unit tests, of course
testing pipeline stages
counterfactual testing
performance testing

All with pytest. So cool.

Full Transcript

Special Guest: Prayson Daniel.

Links:

Python Bytes 250, with Prayson Daniel — Listen to this for more of an introduction to Prayson

If you like Test & Code, I think you'll also like Python People

Python People is a new podcast about getting to know the people who make Python and our community awesome.
Be sure to check out pythonpeople.fm.

170: pytest for Data Science and Machine Learning - Prayson Daniel Nov 17, 2021

Show notes

Prayson Daniel, a principle data scientist, discusses testing machine learning pipelines with pytest.

Prayson is using pytest for some pretty cool stuff, including:

unit tests, of course
testing pipeline stages
counterfactual testing
performance testing

All with pytest. So cool.

Special Guest: Prayson Daniel.

Links:

Python Bytes 250, with Prayson Daniel — Listen to this for more of an introduction to Prayson

Service and Microservice Performance Monitoring - Omri Sass Nov 11, 2021

Show notes

Performance monitoring and error detection is just as important with services and microservices as with any system, but with added complexity. Omri Sass joins the show to explain telemetry and monitoring of services and of systems with services.

Full Transcript

Special Guest: Omri Sass.

If you like Test & Code, I think you'll also like Python People

Python People is a new podcast about getting to know the people who make Python and our community awesome.
Be sure to check out pythonpeople.fm.

169: Service and Microservice Performance Monitoring - Omri Sass Nov 11, 2021

Show notes

Special Guest: Omri Sass.

Understanding Complex Code by Refactoring into Larger Functions Nov 02, 2021

Show notes

To understand complex code, it can be helpful to remove abstractions, even if it results in larger functions. This episode walks through a process I use to refactor code that I need to debug and fix, but don't completely understand.

Full Transcript

If you like Test & Code, I think you'll also like Python People

Python People is a new podcast about getting to know the people who make Python and our community awesome.
Be sure to check out pythonpeople.fm.

168: Understanding Complex Code by Refactoring into Larger Functions Nov 02, 2021

Show notes

React, TypeScript, and the Joy of Testing - Paul Everitt Oct 22, 2021

Show notes

Paul has a tutorial on testing and TDD with React and TypeScript.
We discuss workflow and the differences, similarities between testing with React/TypeScript and Python.
We also discuss what lessons that we can bring from front end testing to Python testing.

Full Transcript

Special Guest: Paul Everitt.

Links:

React, TypeScript, and TDD — Paul Everitt's tutorial
React Testing Library

If you like Test & Code, I think you'll also like Python People

Python People is a new podcast about getting to know the people who make Python and our community awesome.
Be sure to check out pythonpeople.fm.

167: React, TypeScript, and the Joy of Testing - Paul Everitt Oct 21, 2021

Show notes

Special Guest: Paul Everitt.

Links:

React, TypeScript, and TDD — Paul Everitt's tutorial
React Testing Library

unittest expectedFailure and xfail Oct 14, 2021

Show notes

xfail isn't just for pytest tests. Python's unittest has @unittest.expectedFailure.

In this episode, we cover:

using @unittest.expectedFailure
the results of passing and failing tests with expectedFailure
using pytest as a test runner for unittest
using pytest markers on unittest tests

Docs for expectedFailure:
https://docs.python.org/3/library/unittest.html#skipping-tests-and-expected-failures

Some sample code.
unittest only:

import unittest class ExpectedFailureTestCase(unittest.TestCase): @unittest.expectedFailure def test_fail(self): self.assertEqual(1, 0, "broken") @unittest.expectedFailure def test_pass(self): self.assertEqual(1, 1, "not broken")

unittest with pytest markers:

import unittest import pytest class ExpectedFailureTestCase(unittest.TestCase): @pytest.mark.xfail def test_fail(self): self.assertEqual(1, 0, "broken") @pytest.mark.xfail def test_pass(self): self.assertEqual(1, 1, "not broken")

Full Transcript

If you like Test & Code, I think you'll also like Python People