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padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Development</span><meta itemprop="position" content="1"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>Development</h1>
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<p>cunīcu is written almost completely in <a href="https://go.dev/" target="_blank" rel="noopener noreferrer">Go</a> and heavily relies on awesome tooling and packages for Golang:</p>
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<ul>
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<li><a href="https://goreleaser.com/" target="_blank" rel="noopener noreferrer">GoReleaser</a> for release automation</li>
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<li><a href="https://onsi.github.io/ginkgo" target="_blank" rel="noopener noreferrer">Ginkgo</a> and <a href="https://onsi.github.io/gomega" target="_blank" rel="noopener noreferrer">Gomega</a> for testing</li>
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<li><a href="https://github.com/pion" target="_blank" rel="noopener noreferrer">Pion</a> for its ICE, STUN, TURN implementation</li>
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<li><a href="https://github.com/cunicu/gont" target="_blank" rel="noopener noreferrer">Gont</a> for end-to-end testing in various network topologies</li>
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</ul>
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<p>Furthermore use the following services to manage our development:</p>
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<ul>
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<li><a href="https://github.com/cunicu/cunicu" target="_blank" rel="noopener noreferrer">GitHub</a> for source code management and CI pipelines</li>
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<li><a href="https://app.codecov.io/gh/cunicu/cunicu" target="_blank" rel="noopener noreferrer">Codecov</a> for code coverage analysis</li>
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</ul>
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<h2 class="anchor anchorWithStickyNavbar_LWe7" id="testing">Testing<a class="hash-link" aria-label="Direct link to Testing" title="Direct link to Testing" href="/docs/dev#testing"></a></h2>
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<p>We aim to maintain a test coverage above 80% of the lines of code.
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Please make sure that your merge requests include tests which do not lower the coverage percentage.</p>
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<p>cunīcu's code-base is tested using the Ginkgo / Gomega testing framework.
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Unit tests can be found alongside the code in files with a <code>_test.go</code> suffix.
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End-to-end (e2e) integration tests can be found in the <code>test/e2e</code> directory.</p>
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<p>The e2e tests use Gont to construct virtual network environment using Linux's <code>net</code> namespaces and <code>veth</code> point-to-point links.
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This allows us to test cunīcu in both simple and complex network topologies including, L2 switches, L3 routers, firewalls and NAT boxes.</p>
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<h2 class="anchor anchorWithStickyNavbar_LWe7" id="nix">Nix<a class="hash-link" aria-label="Direct link to Nix" title="Direct link to Nix" href="/docs/dev#nix"></a></h2>
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<p>We provide a <a href="https://nixos.org/" target="_blank" rel="noopener noreferrer">Nix</a> <a href="https://nixos.wiki/wiki/Flakes" target="_blank" rel="noopener noreferrer">flake</a> for cunīcu and most related Git repositories to quickly jump into a reproducable development shell by running:</p>
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<div class="language-shell codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-shell codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">nix develop</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div>
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<p>In this shell all required build-time dependencies and tools for cunīcu are available.</p>
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<p>I also recommend to setup <a href="https://direnv.net/" target="_blank" rel="noopener noreferrer">direnv</a> to automatically enter a development shell whenever you are residing inside the repos directory structure:</p>
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<div class="language-shell codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-shell codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">echo "use flake" > .envrc</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div>
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<h2 class="anchor anchorWithStickyNavbar_LWe7" id="website">Website<a class="hash-link" aria-label="Direct link to Website" title="Direct link to Website" href="/docs/dev#website"></a></h2>
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<p>Please run the following commands to start a development server for the website:</p>
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<div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain"># Ideally you use the Nix flake here to get a working Yarn/NodeJS setup</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">cd website</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">yarn start</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">echo "Test"</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="row margin-top--sm theme-doc-footer-edit-meta-row"><div class="col"><a href="https://github.com/cunicu/cunicu/edit/main/docs/dev/index.md" target="_blank" rel="noopener noreferrer" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_JAkA"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/design"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Design</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/dev/coc"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Code of Conduct</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a class="table-of-contents__link toc-highlight" href="/docs/dev#testing">Testing</a></li><li><a class="table-of-contents__link toc-highlight" href="/docs/dev#nix">Nix</a></li><li><a class="table-of-contents__link toc-highlight" href="/docs/dev#website">Website</a></li></ul></div></div></div></div></main></div></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Documentation</div><ul class="footer__items clean-list"><li class="footer__item"><a class="footer__link-item" href="/docs">Tutorial</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/legal">Legal</a></li></ul></div><div class="col footer__col"><div class="footer__title">Community</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://discuss.cunicu.li" target="_blank" rel="noopener noreferrer" class="footer__link-item">Forum<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://fosstodon.org/@cunicu" target="_blank" rel="noopener noreferrer" class="footer__link-item">Fediverse<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li></ul></div><div class="col footer__col"><div class="footer__title">More</div><ul class="footer__items clean-list"><li class="footer__item"><a class="footer__link-item" href="/blog">Blog</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/contact">Contact</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2025 Steffen Vogel.</div></div></div></footer></div>
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