--- title: Stop Flaky Tests from Blocking Your PRs | daily.dev description: Flaky tests silently waste engineering time by blocking PRs with false CI failures, eroding trust in test suites over time. Tuist now detects flaky tests... canonical: https://daily.dev/posts/stop-flaky-tests-from-blocking-your-prs-pspvjey9d twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Stop Flaky Tests from Blocking Your PRs | daily.dev og:description: Flaky tests silently waste engineering time by blocking PRs with false CI failures, eroding trust in test suites over time. Tuist now detects flaky tests... og:url: https://daily.dev/posts/stop-flaky-tests-from-blocking-your-prs-pspvjey9d og:image: https://api.daily.dev/og/posts/PspVjey9D.png og:image:alt: Stop Flaky Tests from Blocking Your PRs og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Stop Flaky Tests from Blocking Your PRs **[ Tuist ](https://daily.dev/sources/tuist-blog)** · 7 min read · 0 upvotes · 0 comments ## Summary Flaky tests silently waste engineering time by blocking PRs with false CI failures, eroding trust in test suites over time. Tuist now detects flaky tests automatically via retry-based detection (using Xcode's -retry-tests-on-failure) and cross-run detection (comparing results across CI runs on the same commit). Detected tests can be quarantined and excluded from CI using the tuist test case list --skip-testing command, and teams get Slack notifications and PR comments when new flaky tests appear. Upcoming features include issue tracker integration and test sharding for parallel execution. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How does Tuist detect flaky tests automatically in Xcode CI runs? Tuist detects flaky tests two ways: retry-based detection, where running tests with Xcode's -retry-tests-on-failure or -test-iterations flags lets Tuist mark a test as flaky if it fails once but passes on retry; and cross-run detection, which compares results across different CI runs on the same commit SHA, flagging both runs as flaky if one passes and the other fails. _daily.dev surfaces practical CI reliability techniques for teams tired of flaky test noise._ ### How do I skip quarantined flaky tests in an xcodebuild CI run with Tuist? Run the tuist test case list command with the --skip-testing flag, which fetches all quarantined test identifiers and formats them as xcodebuild arguments, for example: xcodebuild test -scheme MyScheme $(tuist test case list --skip-testing). This excludes known-flaky tests from the run so they stop blocking pull requests while a fix is worked on. _Teams debugging unreliable CI pipelines can track tooling like this on daily.dev._ ## Similar posts on daily.dev - [Taming Test Flakiness: How We Built a Scalable Tool to Detect and Manage Flaky Tests](https://daily.dev/posts/taming-test-flakiness-how-we-built-a-scalable-tool-to-detect-and-manage-flaky-tests-vm5csu9nu) · Atlassian · 0 upvotes · 0 comments - [How to Tame Your Flaky Tests in TeamCity](https://daily.dev/posts/how-to-tame-your-flaky-tests-in-teamcity-srhpeck9w) · JetBrains · 0 upvotes · 0 comments - [CircleCI Smarter Testing: Stop running tests that don't matter](https://daily.dev/posts/circleci-smarter-testing-stop-running-tests-that-don-t-matter-colzpxw8r) · CircleCI · 0 upvotes · 0 comments - [Flaky Test Retries in Pest v4.5.0](https://daily.dev/posts/flaky-test-retries-in-pest-v4-5-0-x9iv1uekb) · Laravel News · 10 upvotes · 1 comments - [Catch Flakes On Main](https://daily.dev/posts/catch-flakes-on-main-pcjvct68g) · matklad · 0 upvotes · 0 comments --- Tags: [#cicd](https://daily.dev/tags/cicd), [#testing](https://daily.dev/tags/testing), [#tuist](https://daily.dev/tags/tuist) [View this post on daily.dev](https://daily.dev/posts/stop-flaky-tests-from-blocking-your-prs-pspvjey9d) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Stop Flaky Tests from Blocking Your PRs","url":"https://daily.dev/posts/stop-flaky-tests-from-blocking-your-prs-pspvjey9d","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/stop-flaky-tests-from-blocking-your-prs-pspvjey9d"},"datePublished":"2026-08-23T12:23:42.326Z","dateModified":"2026-10-14T02:33:59.944Z","description":"Flaky tests silently waste engineering time by blocking PRs with false CI failures, eroding trust in test suites over time. 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