Testing on Thin Ice: Chipping Away at Test Unpredictability

Presented by François Martin (Karakun AG) Brian Demers (Gradle) at DPE Summit 2025, an event developed and hosted by Gradle.

Visit https://gradle.com/solutions/generative-ai/?utm_campaign=dpe-summit-2025&utm_medium=social-organic&utm_source=youtube&utm_content=testing-thin-ice-chipping-away-test-unpredictability-main to learn how to reap the rewards of AI in today's software development landscape while avoiding the pitfalls.

Ever tried to catch melting snowflakes? That’s the challenge of dealing with flaky tests – those annoying, unpredictable tests that fail randomly and pass when rerun. In this talk, we slide down the slippery slope of why flaky tests are more than just a nuisance. They’re time-sinks, morale crushers, and silent code quality killers.

We skate across real-life scenarios to understand how flaky tests can freeze your development in its tracks, and why sweeping them under the rug is like ignoring a crack in the ice. From delayed releases to lurking bugs, the stakes are high, and the costs are real.

But don’t pack your parkas just yet! We share expert strategies and insights on how to identify, analyze, and ultimately melt away these flaky tests. Through our combined experience, we provide actionable techniques and tools to make sure snow is the only flakiness you experience, ensuring a smoother, more reliable journey in software development.

Visit https://gradle.com/solutions/generative-ai/ to learn how to reap the rewards of AI in today's software development landscape while avoiding the pitfalls.

0:00:00 Introduction to flaky tests and their impact
0:01:36 Defining what constitutes a flaky test
0:02:04 Common causes of test flakiness
0:14:11 Strategies for identifying flaky tests
0:19:40 How to prevent and manage flaky tests
0:24:48 Quarantining and fixing unstable tests
0:30:53 Techniques for writing stable, isolated tests
0:40:23 Addressing the cultural aspect of test reliability

#FlakyTests #TestFlakiness #CICD #ContinuousIntegration #SoftwareQuality #TestingStrategy #UnitTesting #IntegrationTesting #E2ETesting #ParallelTesting #TestIsolation #TestDataManagement #Mocking #TestContainers #JUnit5 #Maven #Gradle #Playwright #Cypress #Selenium #DevEx #DeveloperProductivity #BuildPipeline #Develocity #QA

Видео Testing on Thin Ice: Chipping Away at Test Unpredictability канала Gradle Technologies