I've often found that over-reliance on end-to-end platform tests as part of your release process leads to some nasty trends: ➡️ Releases become slower and less frequent ➡️ Test suites become brittle ➡️ Teams get blocked more often ➡️ Understanding test failures gets harder ➡️ The management of environments becomes more complex, whether long-lived or ephemeral If you want to move quickly and you're working on a distributed platform, you need to focus on the best ways to verify components independently. Combine this where needed with synthetic testing and good monitoring & alerting. Allen's talk demonstrated a systematic approach to component testing, focused on rigorously testing components against contracts and their invariants (using his test.contract library: https://lnkd.in/exqjsaea). His talk was also a reminder of how many challenger banks are implemented from the ground up using Clojure! #clojure #testing #quickcheck #fintech
📣 XT24 Fintech Conference Highlights 💡 On May 9, JUXT (juxt.pro) hosted XT24 Fintech Conference at Unity Place MK in #MiltonKeynes. 13 industry leaders gave 10 incredible talks. Over the next couple of weeks, I’ll share my insights on each presentation ➡️ 💡 Breaking the Bank with Contract Testing — by Allen Rohner, Founder & CTO of Griffin Allen previously founded CircleCI — a billion-dollar company — and is now the founder & CTO of the newly UK-licensed Griffin. Allen introduced a generative testing tool called test.contract (https://lnkd.in/eNMMzTBb) — the talk served a higher-level purpose, encouraging us to think about how the different parts of our codebase are better aligned with different testing strategies. Automated testing has always been about choosing the right trade-offs, and the thinking has evolved over the decades. It was fantastic to get Allen’s view, given the stakes involved in creating a new bank. ✍️ In the first comment, I will share a link to my full review on the JUXT (juxt.pro) blog, as well as a link to the Clojure In interview Allen did with Joe Littlejohn. #fintech #financialservices #testing #softwaretesting #automated #testing #testautomation #testingstrategies #bank #digitalbanking #banking #bankingit #cto #techtalks #ai #software #techinnovation #engineering #techconf #conference #fintechconf #clojure
