base on RailsConf 2024 workshop starter application <h1><picture> <source media="(prefers-color-scheme: dark)" srcset="./lib/assets/wordmark.dark.png?raw=true"> <source media="(prefers-color-scheme: light)" srcset="./lib/assets/wordmark.light.png?raw=true"> <img alt="Mastodon" src="./lib/assets/wordmark.light.png?raw=true" height="34"> </picture></h1> > [!IMPORTANT] > This is a specific version of the original Mastodon codebase for [RailsConf 2024 workshop on tests profiling with TestProf](https://evilmartians.com/events/from-slow-to-go-rails-test-profiling-hands-on-railsconf-2024). Mastodon is a **free, open-source social network server** based on ActivityPub where users can follow friends and discover new ones... _See the full project's description [here](https://github.com/mastodon/mastodon)._ ## Setting up for test profiling First, install the following tools: - [Docker](https://www.docker.com/products/docker-desktop/) - [Dip](https://github.com/bibendi/dip) Now, run Dip to provision Docker development enviroment enough to run **unit** tests (we don't need browser tests for this workshop): ```sh dip provision ``` This command may take some time and should complete with success (you will see the message telling you about it). Now, verify your setup by running all tests: ```sh dip rspec ``` Make sure all is green. If not, don't hesitate to reach out (via issues). Now, when everything is ready, you can open a terminal within a Docker container to start playing with TestProf: ```sh dip runner ``` ## Misc ### Additional profiling tools We're going to analyze some flamegraphs and profiler reports during the workshop, so it's worth having them installed locally (to not depend on the Internet): - `gem install profile-viewer` - `npm install -g speedscope` ### Benchmarking If you want to measure the effect of every optimization change made (and see the progress), you can use [hyperfine](https://github.com/sharkdp/hyperfine) as follows: ```sh hyperfine -L commit "readme","debug require false","opt-in coverage","logging" --runs 2 --show-output --cleanup 'git checkout railsconf2024' --export-markdown 'tmp/results.md' "git -c advice.detachedHead=false checkout ':/{commit}' && dip rspec:notty" ``` The command above runs tests 2 times for specified commits (matching commit messages) and produces a markdown table. Feel free to adjust it to your needs! ", Assign "at most 3 tags" to the expected json: {"id":"10022","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"