--- title: Speed up Rails/Rspec test by parallelization + asset... description: Learn how to speed up Rails/Rspec tests by implementing parallelization, asset pre-precompilation, and Gitlab-CI/Coverage integration. canonical: https://daily.dev/posts/speed-up-rails-rspec-test-by-parallelization-asset-pre-precompile-gitlab-ci-coverage-integration-f7aunjulp twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Speed up Rails/Rspec test by parallelization + asset pre-precompile + Gitlab-CI/Coverage integration | daily.dev og:description: Learn how to speed up Rails/Rspec tests by implementing parallelization, asset pre-precompilation, and Gitlab-CI/Coverage integration. og:url: https://daily.dev/posts/speed-up-rails-rspec-test-by-parallelization-asset-pre-precompile-gitlab-ci-coverage-integration-f7aunjulp og:image: https://api.daily.dev/og/posts/F7AuNjUlP.png og:image:alt: Speed up Rails/Rspec test by parallelization + asset pre-precompile + Gitlab-CI/Coverage integration 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. # Speed up Rails/Rspec test by parallelization + asset pre-precompile + Gitlab-CI/Coverage integration **[RUBYLAND](https://daily.dev/sources/rubyla)** · 4 min read · 3 upvotes · 0 comments ## Summary Learn how to speed up Rails/Rspec tests by implementing parallelization, asset pre-precompilation, and Gitlab-CI/Coverage integration. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#ruby](https://daily.dev/tags/ruby), [#rails](https://daily.dev/tags/rails), [#gitlab-ci](https://daily.dev/tags/gitlab-ci) [View this post on daily.dev](https://daily.dev/posts/speed-up-rails-rspec-test-by-parallelization-asset-pre-precompile-gitlab-ci-coverage-integration-f7aunjulp) ```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":"Speed up Rails/Rspec test by parallelization + asset pre-precompile + Gitlab-CI/Coverage integration","url":"https://daily.dev/posts/speed-up-rails-rspec-test-by-parallelization-asset-pre-precompile-gitlab-ci-coverage-integration-f7aunjulp","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/speed-up-rails-rspec-test-by-parallelization-asset-pre-precompile-gitlab-ci-coverage-integration-f7aunjulp"},"datePublished":"2024-05-10T16:24:59.939Z","dateModified":"2024-05-10T16:24:58.593Z","description":"Learn how to speed up Rails/Rspec tests by implementing parallelization, asset pre-precompilation, and Gitlab-CI/Coverage integration.","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1040da465aeb78cc91839b662db263ac?_a=AQAEuiZ","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1040da465aeb78cc91839b662db263ac?_a=AQAEuiZ","isAccessibleForFree":true,"articleSection":"RUBYLAND","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"RUBYLAND","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/rubyla","url":"https://daily.dev/sources/rubyla"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/speed-up-rails-rspec-test-by-parallelization-asset-pre-precompile-gitlab-ci-coverage-integration-f7aunjulp","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ruby,rails,gitlab-ci","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"RUBYLAND","item":"https://daily.dev/sources/rubyla"},{"@type":"ListItem","position":3,"name":"Speed up Rails/Rspec test by parallelization + asset pre-precompile + Gitlab-CI/Coverage integration"}]} ```