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49: tox - Oliver Bestwalter

tox is a simple yet powerful tool that is used by many Python projects. tox is not just a tool to help you test a Python project against multiple versions of Python. In this interview, Oliver and Brian just scratch the surface of this simple yet powerful automation tool. This is from the tox documentation: tox is a generic virtualenv management and test command line tool you can use for: checking your package installs correctly with different Python versions and interpreters running your...


48: A GUI for pytest

The story of how I came to find a good user interface for running and debugging automated tests is interleaved with a multi-year effort of mine to have a test workflow that’s works smoothly with product development and actually speeds things up. It’s also interleaved with the origins of the blog pythontesting.net, this podcast, and the pytest book I wrote with Pragmatic. It’s not a long story. And it has a happy ending. Well. It’s not over. But I’m happy with where we are now. I’m also...


47: Automation Panda - Andy Knight

Interview with Andy Knight, the Automation Panda. * Selenium & WebDriver * Headless Chrome * Gherkin * BDD * Given When Then * pytest-bdd * PyCharm * Writing Good Gherkin * Overhead of Gherkin and if it's worth it * When to use pytest vs pytest-bdd * The art of test automation Special Guest: Andy Knight.


46: Testing Hard To Test Applications - Anthony Shaw

How do you write tests for things that aren’t that easy to write tests for? That question is a possibly terrible summary of a question sent to me by a listener. And to help me start answering that question, I asked a friend of mine to help, Antony Shaw. Of course, different types of applications have different test strategies, so there’s not a universal answer. But I know some of you out there have experience and expertise around how to tackle this problem. Listen to the discussion Anthony...


45: David Heinemeier Hansson - Software Development and Testing, TDD, and exploratory QA

David Heinemeier Hansson is the creator of Ruby on Rails, founder & CTO at Basecamp (formerly 37signals). He's a best selling author, public speaker, and even a Le Mans class winning racing driver. All of that, of course, is awesome. But that's not why I asked him on the show. In 2014, during a RailsConf keynote, he started a discussion about damage caused by TDD. This was followed by a few blog posts, and then a series of recorded hangouts with Martin Fowler and Kent Beck. This is what I...


44: Mentoring - Nina Zakharenko

Nina Zakharenko is a cloud developer advocate at Microsoft focusing on Python. She's also an excellent public speaker. We talk about her experience with mentoring, both being a mentor, and utilizing mentors. We also talk about public speaking, her move to Microsoft, and to Portland, and the Microsoft/GitHub merge. Special Guest: Nina Zakharenko.


Preparing for Technical Talks with Kelsey Hightower - bonus episode

After I had wrapped up the interview with Kelsey Hightower for episode 43 (http://testandcode.com/43), I asked him one last question. You see, I admire the his presentation style. So I asked him if he would share with me how he prepared for his presentations. His answer is so thoughtful and makes so much sense, I couldn't keep it to myself. I'm releasing this as a bonus mini-episode so that it's easy to refer back to the next time you or I have a chance to do a technical talk. Special Guest:...


43: Kelsey Hightower - End to End & Integration Testing

I first heard Kelsey speak during his 2017 PyCon keynote. He's an amazing speaker, and I knew right then I wanted to hear more about what he does and hear more of his story. We discuss testing, of course, but we take it further and discuss: tests for large systems, like kubernetes Testing in real world scenarios with all the configuration and everything Becoming a complete engineer by thinking about the end to end flow from the users perspective Learning from other roles, and the value of...


42: Using Automated Tests to Help Teach Python - Trey Hunner

This interview with Trey Hunner discusses his use of automated tests to help teach programming. Automated testing is a huge part of developing great software. But many new developers don't get exposed to testing for quite a while. But this is changing. New ways to teach programming include automated tests from the beginning. Trey Hunner is one of the PSF directors and a Python and Django team trainer, and he has been using automated tests to help people learn Python. Special Guest: Trey...


41: Testing in DevOps and Agile - Anthony Shaw

We talk with Anthony Shaw about some of the testing problems facing both DevOps teams, and Agile teams. We also talk about his recent pull request accepted into pytest. Special Guest: Anthony Shaw.


40: On Podcasting - Adam Clark

Adam is the host of The Gently Mad (https://thegentlymad.com/) podcast, and teaches the steps in creating and growing a podcast in his course Irresistible Podcasting (https://irresistiblepodcasting.com). He was one of the people who inspired Brian to get the Test & Code podcast started in the first place. Brian took his course in 2015. Adam is in the process of updating the course, and building a community around it. Warning: This may be an episode to listen to with headphones if you have...


39: Thorough software testing for critical features

Complete and exhaustive testing is not possible. Nor would it be fun, or maintainable, or a good use of your time. However, some functionality is important enough to make sure the test behavior coverage is thorough enough to have high confidence in it's quality. In this episode, we discuss 3 techniques that can be combined to quickly generate test cases. We then talk about how to implement them efficiently in pytest. The techniques covered are: equivalence partitioning boundary value...


38: Prioritize software tests with RCRCRC

RCRCRC was developed by Karen Nicole Johnson. In this episode we discuss the mnemonic/heuristic and use it to prioritize tests for the cards application. Recent: new features, new areas of code Core: essential functions must continue to work, your products USPs (Unique Selling Propositions) Risk: some areas of an application pose more risk, perhaps areas important to customers but not used regularly by the development team. Configuration sensitive: code that’s dependent on environment...


37: What tests to write first

This episode starts down the path of test strategy with the first tests to write in either a legacy system or a project just getting off it's feet. We cover: My approach to testing existing systems. Put names to strategies so we can refer to them later. Explain the strategies in general terms and explain why they are useful. Discuss how these strategies are used in an example project. (The code is available on github). Strategies covered today: Dog Fooding Exploratory Testing Tracer Bullet...


36: Stephanie Hurlburt - Mentoring and Open Office Hours

Stephanie is a co-founder and graphics engineer at Binomial. She works on Basis, an image compressor, and has customers in games, video, mapping, and any application that has lots of image data. Stephanie has also been encouraging experienced engineers to open up their twitter DMs to questions from anyone, to help mentor people not only in technical questions, but in career questions as well. She also sets aside some time to mentor people through skype when written form just doesn't cut it....


35: Continuing Education and Certificate Programs at UW

There are lots of ways to up your skills. Of course, I'm a big fan of learning through reading books, such as upping your testing skills by reading Python Testing with pytest. And then there are online learning systems and MOOCs. At the other end of the spectrum is a full blown university degree. One option kind of in the middle is continuing education programs available through some universities, such as University of Washington. To discuss this option with me in more depth, we've got...


34: TDD and Test First

An in depth discussion of Test Driven Development (TDD) should include a discussion of Test First. So that's where we start. Why write tests first? How do you know what tests to write? What are the steps for test first? Isn't this just TDD? Functional Tests vs Unit Tests


33: Katharine Jarmul - Testing in Data Science

A discussion with Katharine Jarmul, aka kjam, about some of the challenges of data science with respect to testing. Some of the topics we discuss: experimentation vs testing testing pipelines and pipeline changes automating data validation property based testing schema validation and detecting schema changes using unit test techniques to test data pipeline stages testing nodes and transitions in DAGs testing expected and unexpected data missing data and non-signals corrupting a dataset with...


32: David Hussman - Agile vs Agility, Dude's Law, and more

A wonderful discussion with David Hussman. David and Brian look back at what all we've learned in XP, TDD, and other Agile methodologies, where things have gone awry, how to bring the value back, and where testing fits into all of this. How to build the wrong thing faster Agile vs Agility Product vs Process Where testing fits into software development practices. "Integration tests, there's a name that needs to be refactored desperately." Integration tests are "story tests". They tell the...


31: I'm so sick of the testing pyramid

What started as a twitter disagreement carries over into this civil discussion of software testing. Brian and Paul discuss testing practices such as the testing pyramid, TDD, unit testing, system testing, and balancing test effort. the Testing Pyramid the Testing Column TDD unit testing balancing unit with system tests, functional tests API testing subcutaneous testing customer facing tests Special Guest: Paul Merrill.