Jeffrey Matthias's guest appearances

Jeffrey Matthias

Elixir Wizards

Beam Radio

Elixir Newbie

Chris Bell

Angel Jose

Dave Thomas

Toran Billups

Cassidy Williams

Chris Miller

Dan Lindeman

Jessica Kerr

Devon Estes

José Valim

Chris McCord

Francesco Cesarini

Sean Lewis

Jim Freeze

Brooklyn Zelenka

OwlTail

Andrea Leopardi

While we can think of many reasons why we love Elixir, the community could always benefit from a more lively conversation around testing. It was with this in mind that Jeffrey Matthias and Andrea Leopardi decided to write Testing Elixir, and today they join us on the show to share some of the insights to be found in their new book. Our guests start by sketching out the main reasons why they decided to write a book of this nature before speaking to the process of writing it collaboratively from their respective homes in Italy and the US. Andrea and Jeffrey speak about the challenges of finding a middle ground between their unique styles to come up with a unified testing method. The conversation then takes a deep dive into the weeds of testing in Elixir and we hear our guests' perspectives on the most appropriate situations to use async true, Mox, Ecto Sandbox, and other techniques. We wrap up our interview with a question about what Andrea and Jeffrey would most like people to take away from their book where they express the hope that it can act as a springboard for further conversation about best practices for testing in Elixir and more. As always, we close the show off with our mini-interview, this time talking to Tracey Onim from Podii.  Key Points From This Episode:  Why Jeffrey and Andrea wrote their book and how they pitched it to the publisher. How the feedback Andrea and Jeffrey got while writing the book shaped its content. What writing the book was like considering its authors live in different countries. How our guests came up with a unified testing method when each had their own style. Stories about testing mistakes and the funny situations they led to. Discussing the HBO integration test email and how it was responded to and dealt with. The issue of developers not using async true enough and how to get better at it. When to use async true, Ecto Sandbox, and Mox. Why our guests use Mox, when the best times to use it are, and how it shapes your thinking.  Exploring the relationship between test driven development and using the program. What can go wrong if you rely purely on tests to test out your code. The main takeaways our guests hope can be found in their book. Final plugs from Jeffrey and Andrea and where to find them online. A quick interview where we learn more about Tracey Onim from Podii.   Links Mentioned in Today’s Episode: SmartLogic — https://smartlogic.io/  Jeffrey Matthias on Twitter — https://twitter.com/idlehands Andrea Leopardi — https://andrealeopardi.com/ Andrea Leopardi on Twitter — https://twitter.com/whatyouhide Andrea Leopardi on GitHub — https://github.com/whatyouhide/corsica Testing Elixir — http://testingelixir.com/ Testing Elixir — https://pragprog.com/titles/lmelixir/testing-elixir/ Testing Elixir — https://www.target.com/p/testing-elixir-by-andrea-leopardi-jeffrey-matthias-paperback/-/A-83072057#lnk=sametab Testing Elixir on Twitter — https://twitter.com/testingelixir Publish with The Pragmatic Bookshelf — https://pragprog.com/become-an-author/ Ecto.Adapters.SQL.Sandbox — https://hexdocs.pm/ecto_sql/Ecto.Adapters.SQL.Sandbox.html Mox — https://hexdocs.pm/mox/Mox.html Command Line Options — https://hexdocs.pm/mix/1.12/Mix.Tasks.Test.html#module-command-line-options Mocks and Explicit Contracts — http://blog.plataformatec.com.br/2015/10/mocks-and-explicit-contracts/ bypass — https://github.com/PSPDFKit-labs/bypass Test-Driven Development with Phoenix — https://www.tddphoenix.com/ Tracey Onim — https://www.linkedin.com/in/tracey-onim-420b3316a?originalSubdomain=ke Podii — https://www.apollo.io/companies/Podii/5c1df0e8f651257261ddc16a?chart=countSpecial Guests: Andrea Leopardi and Jeffrey Matthias.

While we can think of many reasons why we love Elixir, the community could always benefit from a more lively conversation around testing. It was with this in mind that Jeffrey Matthias and Andrea Leopardi decided to write Testing Elixir, and today they join us on the show to share some of the insights to be found in their new book. Our guests start by sketching out the main reasons why they decided to write a book of this nature before speaking to the process of writing it collaboratively from their respective homes in Italy and the US. Andrea and Jeffrey speak about the challenges of finding a middle ground between their unique styles to come up with a unified testing method. The conversation then takes a deep dive into the weeds of testing in Elixir and we hear our guests' perspectives on the most appropriate situations to use async true, Mox, Ecto Sandbox, and other techniques. We wrap up our interview with a question about what Andrea and Jeffrey would most like people to take away from their book where they express the hope that it can act as a springboard for further conversation about best practices for testing in Elixir and more. As always, we close the show off with our mini-interview, this time talking to Tracey Onim from Podii. Key Points From This Episode: <ul> <li>Why Jeffrey and Andrea wrote their book and how they pitched it to the publisher.</li> <li>How the feedback Andrea and Jeffrey got while writing the book shaped its content.</li> <li>What writing the book was like considering its authors live in different countries.</li> <li>How our guests came up with a unified testing method when each had their own style.</li> <li>Stories about testing mistakes and the funny situations they led to.</li> <li>Discussing the HBO integration test email and how it was responded to and dealt with.</li> <li>The issue of developers not using async true enough and how to get better at it.</li> <li>When to use async true, Ecto Sandbox, and Mox.</li> <li>Why our guests use Mox, when the best times to use it are, and how it shapes your thinking. </li> <li>Exploring the relationship between test driven development and using the program.</li> <li>What can go wrong if you rely purely on tests to test out your code.</li> <li>The main takeaways our guests hope can be found in their book.</li> <li>Final plugs from Jeffrey and Andrea and where to find them online.</li> <li>A quick interview where we learn more about Tracey Onim from Podii. </li> </ul> Links Mentioned in Today’s Episode: SmartLogic — <a href="https://smartlogic.io/" rel="nofollow" target="_blank">https://smartlogic.io/</a> Jeffrey Matthias on Twitter — <a href="https://twitter.com/idlehands" rel="nofollow" target="_blank">https://twitter.com/idlehands</a> Andrea Leopardi — <a href="https://andrealeopardi.com/" rel="nofollow" target="_blank">https://andrealeopardi.com/</a> Andrea Leopardi on Twitter — <a href="https://twitter.com/whatyouhide" rel="nofollow" target="_blank">https://twitter.com/whatyouhide</a> Andrea Leopardi on GitHub — <a href="https://github.com/whatyouhide/corsica" rel="nofollow" target="_blank">https://github.com/whatyouhide/corsica</a> Testing Elixir — <a href="http://testingelixir.com/" rel="nofollow" target="_blank">http://testingelixir.com/</a> Testing Elixir — <a href="https://pragprog.com/titles/lmelixir/testing-elixir/" rel="nofollow" target="_blank">https://pragprog.com/titles/lmelixir/testing-elixir/</a> Testing Elixir — <a href="https://www.target.com/p/testing-elixir-by-andrea-leopardi-jeffrey-matthias-paperback/-/A-83072057#lnk=sametab" rel="nofollow" target="_blank">https://www.target.com/p/testing-elixir-by-andrea-leopardi-jeffrey-matthias-paperback/-/A-83072057#lnk=sametab</a> Testing Elixir on Twitter — <a href="https://twitter.com/testingelixir" rel="nofollow" target="_blank">https://twitter.com/testingelixir</a> Publish with The Pragmatic Bookshelf — <a href="https://pragprog.com/become-an-author/" rel="nofollow" target="_blank">https://pragprog.com/become-an-author/</a> Ecto.Adapters.SQL.Sandbox — <a href="https://hexdocs.pm/ecto_sql/Ecto.Adapters.SQL.Sandbox.html" rel="nofollow" target="_blank">https://hexdocs.pm/ecto_sql/Ecto.Adapters.SQL.Sandbox.html</a> Mox — <a href="https://hexdocs.pm/mox/Mox.html" rel="nofollow" target="_blank">https://hexdocs.pm/mox/Mox.html</a> Command Line Options — <a href="https://hexdocs.pm/mix/1.12/Mix.Tasks.Test.html#module-command-line-options" rel="nofollow" target="_blank">https://hexdocs.pm/mix/1.12/Mix.Tasks.Test.html#module-command-line-options</a> Mocks and Explicit Contracts — <a href="http://blog.plataformatec.com.br/2015/10/mocks-and-explicit-contracts/" rel="nofollow" target="_blank">http://blog.plataformatec.com.br/2015/10/mocks-and-explicit-contracts/</a> bypass — <a href="https://github.com/PSPDFKit-labs/bypass" rel="nofollow" target="_blank">https://github.com/PSPDFKit-labs/bypass</a> Test-Driven Development with Phoenix — <a href="https://www.tddphoenix.com/" rel="nofollow" target="_blank">https://www.tddphoenix.com/</a> Tracey Onim — <a href="https://www.linkedin.com/in/tracey-onim-420b3316a?originalSubdomain=ke" rel="nofollow" target="_blank">https://www.linkedin.com/in/tracey-onim-420b3316a?originalSubdomain=ke</a> Podii — <a href="https://www.apollo.io/companies/Podii/5c1df0e8f651257261ddc16a?chart=count" rel="nofollow" target="_blank">https://www.apollo.io/companies/Podii/5c1df0e8f651257261ddc16a?chart=count</a>Special Guests: Andrea Leopardi and Jeffrey Matthias.

Testing Elixir with Jeffrey Matthias and Andrea Leopardi

We talk with Jeffrey Matthias from Community about their current and past Elixir projects and how they are deployed. Jeffrey Matthias - Community Find Jeffrey elsewhere online: http://github.com/idlehands https://twitter.com/idlehands 0:47 - Give us a quick overview of the Elixir projects you have in production. 3:29 - Why are you using Elixir in production? 6:04 - What are some of the high level advantages / disadvantages of Elixir, from your perspective? 10:14 - What do you use to host your Elixir app?  Linode, AWS, DO  Heroku  Enmesos  mesos  How do you deploy your application?  Ansible  Deploy scripts  Distillery   14:19 - Are you able to get zero downtime deploys?  If so, how?   17:06 - Do you cluster the application?  If so, how?   22:53 - How does your Elixir App perform compared to others in your environment?  Response time  Throughput  Jobs/hr   25:01 - How are you solving background task processing? 29:17 - What libraries are you using?  Phoenix   33:53 - Third party apps  37:28 - Do you have a story where Elixir saved the day in production? 40:42 - If you could give one tip to developers out there who are or may soon be running Elixir in production, what would it be? Learn more about how SmartLogic uses Phoenix and Elixir.Special Guest: Jeffrey Matthias.Links:EnbalaWeedmapsDocker: Up &amp; RunningAsync APIRabbitMQAMQP Elixir ClienterlcassErlang in Anger

We talk with Jeffrey Matthias from Community about their current and past Elixir projects and how they are deployed. Jeffrey Matthias - <a href="https://www.community.com/" rel="nofollow" target="_blank">Community</a> Find Jeffrey elsewhere online: <a href="http://github.com/idlehands" rel="nofollow" target="_blank">http://github.com/idlehands</a> <a href="https://twitter.com/idlehands" rel="nofollow" target="_blank">https://twitter.com/idlehands</a> 0:47 - Give us a quick overview of the Elixir projects you have in production. 3:29 - Why are you using Elixir in production? 6:04 - What are some of the high level advantages / disadvantages of Elixir, from your perspective? 10:14 - What do you use to host your Elixir app? <ul> <li>Linode, AWS, DO </li> <li>Heroku </li> <li>Enmesos </li> <li>mesos </li> </ul> How do you deploy your application? <ul> <li>Ansible </li> <li>Deploy scripts </li> <li>Distillery </li> </ul> 14:19 - Are you able to get zero downtime deploys? <ul> <li>If so, how? </li> </ul> 17:06 - Do you cluster the application? <ul> <li>If so, how? </li> </ul> 22:53 - How does your Elixir App perform compared to others in your environment? <ul> <li>Response time </li> <li>Throughput </li> <li>Jobs/hr </li> </ul> 25:01 - How are you solving background task processing? 29:17 - What libraries are you using? <ul> <li>Phoenix </li> </ul> 33:53 - Third party apps 37:28 - Do you have a story where Elixir saved the day in production? 40:42 - If you could give one tip to developers out there who are or may soon be running Elixir in production, what would it be? Learn more about how SmartLogic uses <a href="https://smr.tl/2Hyslu8" rel="nofollow" target="_blank">Phoenix and Elixir.</a>Special Guest: Jeffrey Matthias.Links:<ul><li><a href="https://www.enbala.com/" rel="nofollow" target="_blank">Enbala</a></li><li><a href="https://weedmaps.com/" rel="nofollow" target="_blank">Weedmaps</a></li><li><a href="https://shop.oreilly.com/product/0636920153566.do" rel="nofollow" target="_blank">Docker: Up &amp; Running</a></li><li><a href="https://www.asyncapi.com/" rel="nofollow" target="_blank">Async API</a></li><li><a href="https://www.rabbitmq.com/" rel="nofollow" target="_blank">RabbitMQ</a></li><li><a href="https://github.com/pma/amqp" rel="nofollow" target="_blank">AMQP Elixir Client</a></li><li><a href="https://github.com/silviucpp/erlcass" rel="nofollow" target="_blank">erlcass</a></li><li><a href="https://www.erlang-in-anger.com/" rel="nofollow" target="_blank">Erlang in Anger</a></li></ul>

Jeffrey Matthias from Community - Elixir in Production