# Reducing Failure-Analysis Work for Flaky End-to-End Test Suites

DevFeed: [Reducing Failure-Analysis Work for Flaky End-to-End Test Suites](<https://devfeed.tech/articles/my-2-cents-i-ll-gladly-spend-them-to-stop-staring-at-test-logs-28061.md>)

Original publisher: [Read original article](<https://tech.trivago.com/post/2026-04-15-my-2-cents-ill-gladly-spend-them-to-stop-staring-at-test-logs/>)

Author: Giuseppe Donati Web Test Automation Engineer Not a stereotypical Italian guy; Except

Published: 2026-04-15T00:00:00Z

Content type: opinion

Language: en

Sources: [Trivago](<https://devfeed.tech/sources/trivago.md>)

Topics: [Testing](<https://devfeed.tech/topics/testing.md>), [Test automation](<https://devfeed.tech/topics/test-automation.md>), [ci](<https://devfeed.tech/topics/ci.md>), [Selenium](<https://devfeed.tech/topics/selenium.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [Latency](<https://devfeed.tech/topics/latency.md>), [Server-side rendering](<https://devfeed.tech/topics/server-side-rendering.md>), [Microservice](<https://devfeed.tech/topics/microservice.md>)

Tags: [artificial-intelligence](<https://devfeed.tech/tags/artificial-intelligence.md>), [ci](<https://devfeed.tech/tags/ci.md>), [github](<https://devfeed.tech/tags/github.md>), [integration](<https://devfeed.tech/tags/integration.md>), [latency](<https://devfeed.tech/tags/latency.md>), [quality-assurance](<https://devfeed.tech/tags/quality-assurance.md>), [selenium](<https://devfeed.tech/tags/selenium.md>), [server](<https://devfeed.tech/tags/server.md>), [server-side-rendering](<https://devfeed.tech/tags/server-side-rendering.md>), [test-automation](<https://devfeed.tech/tags/test-automation.md>), [tests](<https://devfeed.tech/tags/tests.md>)

## AI overview

The article describes the investigation burden caused by flaky end-to-end tests in trivago's Continuous Integration pipeline. Its extended suite has scenario-level success above 99% but workflow-level success of 20%, requiring frequent analysis of failures caused by flakiness, changing live data, preview-environment latency, and feature churn.

## Source excerpt

Does 99.8% represent a good success rate in end-to-end test automation of a web application? What about 99.9%? Maybe yes, but when you have a test suite that has up to 1,000 scenarios, it means ...