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<meta property="og:description" content="Summary RNTL exposes the render function as the primary entry point for tests. If you make complex, repeating setups for your tests, consider creating a custom render function. The idea is to encapsulate common setup steps and test wiring inside a render function suitable for your tests. Example Example full source code. More info Additional params A custom render function might accept additional parameters to allow for setting up different start conditions for a test, e.g., the initial state for global state management. Multiple functions Depending on the situation, you may declare more than one custom render function. For example, you have one function for testing application flows and a second for testing individual screens. Async setup Since render is async, your custom render function should be marked as async and use await render(). This pattern also makes it easy to add additional async setup if needed:">
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<meta name="description" content="Summary RNTL exposes the render function as the primary entry point for tests. If you make complex, repeating setups for your tests, consider creating a custom render function. The idea is to encapsulate common setup steps and test wiring inside a render function suitable for your tests. Example Example full source code. More info Additional params A custom render function might accept additional parameters to allow for setting up different start conditions for a test, e.g., the initial state for global state management. Multiple functions Depending on the situation, you may declare more than one custom render function. For example, you have one function for testing application flows and a second for testing individual screens. Async setup Since render is async, your custom render function should be marked as async and use await render(). This pattern also makes it easy to add additional async setup if needed:"></head>

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ease-out"><path fill="#BCBBC2" d="M6.5 4.5h1v-1h-1v-1h-1v1h-1v1h1v6h1zm-2 0h-1v1h1zm4 0h-1v1h1zm-5 2v-1h-1v1zm6-1h-1v1h1z"></path></svg></button></div></div><div class="rp-doc-layout__container"><aside class="rp-doc-layout__sidebar rp-scrollbar"><a href="/react-native-testing-library/cookbook/" class="rp-sidebar-item rp-link" style="padding-left:12px" data-depth="0"><div class="rp-sidebar-item__left"><span>Cookbook</span></div><div class="rp-sidebar-item__right"></div></a><div class="rp-sidebar-item rp-sidebar-group" style="padding-left:12px" data-depth="0"><div class="rp-sidebar-item__left"><span>Basic Recipes</span></div><div class="rp-sidebar-item__right"><div style="cursor:pointer;transition:transform 0.2s ease-out;transform:rotate(90deg)"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="13" fill="none" viewBox="0 0 12 13"><path fill="#BCBBC2" d="M6.5 4.5h1v-1h-1v-1h-1v1h-1v1h1v6h1zm-2 0h-1v1h1zm4 0h-1v1h1zm-5 2v-1h-1v1zm6-1h-1v1h1z"></path></svg></div></div></div><div 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ease-out;transform:rotate(90deg)"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="13" fill="none" viewBox="0 0 12 13"><path fill="#BCBBC2" d="M6.5 4.5h1v-1h-1v-1h-1v1h-1v1h1v6h1zm-2 0h-1v1h1zm4 0h-1v1h1zm-5 2v-1h-1v1zm6-1h-1v1h1z"></path></svg></div></div></div><div style="display:grid;grid-template-rows:1fr;transition:grid-template-rows 0.2s ease-out"><div style="overflow:hidden"><a href="/react-native-testing-library/cookbook/advanced/network-requests" class="rp-sidebar-item rp-sidebar-item--group-item rp-link" style="padding-left:calc(12px * 1 + 12px)" data-depth="1"><div class="rp-sidebar-item__left"><span>Network Requests</span></div><div class="rp-sidebar-item__right"></div></a></div></div><div class="rp-sidebar-item rp-sidebar-group" style="padding-left:12px" data-depth="0"><div class="rp-sidebar-item__left"><span>State Management Recipes</span></div><div class="rp-sidebar-item__right"><div style="cursor:pointer;transition:transform 0.2s ease-out;transform:rotate(90deg)"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="13" fill="none" viewBox="0 0 12 13"><path fill="#BCBBC2" d="M6.5 4.5h1v-1h-1v-1h-1v1h-1v1h1v6h1zm-2 0h-1v1h1zm4 0h-1v1h1zm-5 2v-1h-1v1zm6-1h-1v1h1z"></path></svg></div></div></div><div style="display:grid;grid-template-rows:1fr;transition:grid-template-rows 0.2s ease-out"><div style="overflow:hidden"><a href="/react-native-testing-library/cookbook/state-management/jotai" class="rp-sidebar-item rp-sidebar-item--group-item rp-link" style="padding-left:calc(12px * 1 + 12px)" data-depth="1"><div class="rp-sidebar-item__left"><span>Jotai</span></div><div class="rp-sidebar-item__right"></div></a></div></div></aside><div class="rp-doc-layout__doc"><main class="rp-doc-layout__doc-container"><div class="rp-doc rspress-doc"><!--$--><h1 class="rp-toc-include" id="custom-render-function"><a href="#custom-render-function" class="rp-header-anchor rp-link" aria-hidden="true">#</a>Custom <code>render</code> function<!-- --> </h1><div class="rp-not-doc rp-llms-container"><button class="rp-not-doc rp-llms-button rp-llms-copy-button"><div class="rp-llms-copy-button__icon-wrapper"><svg xmlns="http://www.w3.org/2000/svg" width="271" height="271" viewBox="0 0 271 271" class="rp-llms-copy-button__icon-success"><path fill="currentColor" d="M112.687 203.223H90.174v-22.514h22.512v-22.514h22.512v22.514h-22.511zm-22.514-22.514H67.66v-22.514h22.513zm-22.514-22.514H45.146v-22.512H67.66zm90.054 0h-22.514v-22.512h22.514zm22.514-22.512h-22.514v-22.514h22.514zm22.513-22.514h-22.513V90.655h22.513zm22.514-22.514H202.74V68.143h22.514z"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="272" height="272" viewBox="0 0 272 272" class="rp-llms-copy-button__icon-copy"><path fill="currentColor" fill-rule="evenodd" d="M45.883 23.368h123.823v22.514H68.396v146.336H45.883zm45.026 45.027H225.99v180.107H90.91zm22.514 22.513v135.08h90.053V90.908z" clip-rule="evenodd"></path></svg></div><span>Copy Markdown</span></button><button class="rp-llms-button rp-llms-view-options__trigger "><svg xmlns="http://www.w3.org/2000/svg" width="12" height="13" viewBox="0 0 12 13" class="rp-llms-view-options__arrow "><path fill="currentColor" d="M6.5 8.5h1v1h-1v1h-1v-1h-1v-1h1v-6h1zm-2 0h-1v-1h1zm4 0h-1v-1h1zm-5-2v1h-1v-1zm6 1h-1v-1h1z"></path></svg></button></div>
<h3 class="rp-toc-include" id="summary"><a href="#summary" class="rp-header-anchor rp-link" aria-hidden="true">#</a>Summary</h3>
<p>RNTL exposes the <code>render</code> function as the primary entry point for tests. If you make complex, repeating setups for your tests, consider creating a custom render function. The idea is to encapsulate common setup steps and test wiring inside a render function suitable for your tests.</p>
<h3 class="rp-toc-include" id="example"><a href="#example" class="rp-header-anchor rp-link" aria-hidden="true">#</a>Example</h3>
<div class="rp-codeblock language-tsx"><div class="rp-codeblock__title">test-utils.ts</div><div class="rp-codeblock__content"><div class="rp-codeblock__content__scroll-container rp-scrollbar rp-scrollbar--always"><pre class="shiki css-variables" style="background-color:var(--shiki-background);color:var(--shiki-foreground)" tabindex="0" data-lang="tsx" data-title="test-utils.ts"><code><span class="line"><span style="color:var(--shiki-token-comment)">// ...</span></span>
<span class="line"></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">interface</span><span style="color:var(--shiki-token-function)"> RenderWithProvidersProps</span><span style="color:var(--shiki-foreground)"> {</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">  user</span><span style="color:var(--shiki-token-keyword)">?:</span><span style="color:var(--shiki-token-function)"> User</span><span style="color:var(--shiki-token-keyword)"> |</span><span style="color:var(--shiki-token-constant)"> null</span><span style="color:var(--shiki-foreground)">;</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">  theme</span><span style="color:var(--shiki-token-keyword)">?:</span><span style="color:var(--shiki-token-function)"> Theme</span><span style="color:var(--shiki-foreground)">;</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">export</span><span style="color:var(--shiki-token-keyword)"> async</span><span style="color:var(--shiki-token-keyword)"> function</span><span style="color:var(--shiki-token-function)"> renderWithProviders</span><span style="color:var(--shiki-foreground)">&lt;</span><span style="color:var(--shiki-token-function)">T</span><span style="color:var(--shiki-foreground)">&gt;(</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">  ui</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-token-function)"> React</span><span style="color:var(--shiki-foreground)">.</span><span style="color:var(--shiki-token-function)">ReactElement</span><span style="color:var(--shiki-foreground)">&lt;</span><span style="color:var(--shiki-token-function)">T</span><span style="color:var(--shiki-foreground)">&gt;</span><span style="color:var(--shiki-token-punctuation)">,</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">  options</span><span style="color:var(--shiki-token-keyword)">?:</span><span style="color:var(--shiki-token-function)"> RenderWithProvidersProps</span><span style="color:var(--shiki-token-punctuation)">,</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">) {</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">  return</span><span style="color:var(--shiki-token-keyword)"> await</span><span style="color:var(--shiki-token-function)"> render</span><span style="color:var(--shiki-foreground)">(</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">    &lt;</span><span style="color:var(--shiki-token-constant)">UserProvider.Provider</span><span style="color:var(--shiki-token-function)"> value</span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-foreground)">{</span><span style="color:var(--shiki-token-constant)">options</span><span style="color:var(--shiki-foreground)">?.user </span><span style="color:var(--shiki-token-keyword)">??</span><span style="color:var(--shiki-token-constant)"> null</span><span style="color:var(--shiki-foreground)">}&gt;</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">      &lt;</span><span style="color:var(--shiki-token-constant)">ThemeProvider.Provider</span><span style="color:var(--shiki-token-function)"> value</span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-foreground)">{</span><span style="color:var(--shiki-token-constant)">options</span><span style="color:var(--shiki-foreground)">?.theme </span><span style="color:var(--shiki-token-keyword)">??</span><span style="color:var(--shiki-token-string-expression)"> &#x27;light&#x27;</span><span style="color:var(--shiki-foreground)">}&gt;{ui}&lt;/</span><span style="color:var(--shiki-token-constant)">ThemeProvider.Provider</span><span style="color:var(--shiki-foreground)">&gt;</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">    &lt;/</span><span style="color:var(--shiki-token-constant)">UserProvider.Provider</span><span style="color:var(--shiki-foreground)">&gt;</span><span style="color:var(--shiki-token-punctuation)">,</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">  );</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">}</span></span></code></pre></div><div class="rp-code-button-group"><button class="rp-code-button-group__button rp-code-wrap-button" title="Toggle code wrap"><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrapped"><path fill="currentColor" d="M21 5H3v2h18zM3 19h7v-2H3zm0-6h15c1 0 2 .43 2 2s-1 2-2 2h-2v-2l-4 3 4 3v-2h2c2.95 0 4-1.27 4-4 0-2.72-1-4-4-4H3z"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrap"><path fill="currentColor" d="M16 7H3V5h13zM3 19h13v-2H3zm19-7-4-3v2H3v2h15v2z"></path></svg></button><button class="rp-code-button-group__button rp-code-copy-button" title="Copy code"><svg xmlns="http://www.w3.org/2000/svg" width="272" height="272" viewBox="0 0 272 272" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--copy"><path fill="currentColor" fill-rule="evenodd" d="M45.883 23.368h123.823v22.514H68.396v146.336H45.883zm45.026 45.027H225.99v180.107H90.91zm22.514 22.513v135.08h90.053V90.908z" clip-rule="evenodd"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="271" height="271" viewBox="0 0 271 271" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--success"><path fill="currentColor" d="M112.687 203.223H90.174v-22.514h22.512v-22.514h22.512v22.514h-22.511zm-22.514-22.514H67.66v-22.514h22.513zm-22.514-22.514H45.146v-22.512H67.66zm90.054 0h-22.514v-22.512h22.514zm22.514-22.512h-22.514v-22.514h22.514zm22.513-22.514h-22.513V90.655h22.513zm22.514-22.514H202.74V68.143h22.514z"></path></svg></button></div></div></div>
<div class="rp-codeblock language-tsx"><div class="rp-codeblock__title">custom-render/index.test.tsx</div><div class="rp-codeblock__content"><div class="rp-codeblock__content__scroll-container rp-scrollbar rp-scrollbar--always"><pre class="shiki css-variables" style="background-color:var(--shiki-background);color:var(--shiki-foreground)" tabindex="0" data-lang="tsx" data-title="custom-render/index.test.tsx"><code><span class="line"><span style="color:var(--shiki-token-keyword)">import</span><span style="color:var(--shiki-foreground)"> { screen } </span><span style="color:var(--shiki-token-keyword)">from</span><span style="color:var(--shiki-token-string-expression)"> &#x27;@testing-library/react-native&#x27;</span><span style="color:var(--shiki-foreground)">;</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">import</span><span style="color:var(--shiki-foreground)"> { renderWithProviders } </span><span style="color:var(--shiki-token-keyword)">from</span><span style="color:var(--shiki-token-string-expression)"> &#x27;../test-utils&#x27;</span><span style="color:var(--shiki-foreground)">;</span></span>
<span class="line"><span style="color:var(--shiki-token-comment)">// ...</span></span>
<span class="line"></span>
<span class="line"><span style="color:var(--shiki-token-function)">test</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-string-expression)">&#x27;renders WelcomeScreen with user&#x27;</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-token-keyword)"> async</span><span style="color:var(--shiki-foreground)"> () </span><span style="color:var(--shiki-token-keyword)">=&gt;</span><span style="color:var(--shiki-foreground)"> {</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">  await</span><span style="color:var(--shiki-token-function)"> renderWithProviders</span><span style="color:var(--shiki-foreground)">(&lt;</span><span style="color:var(--shiki-token-constant)">WelcomeScreen</span><span style="color:var(--shiki-foreground)"> /&gt;</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-foreground)"> { user</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-foreground)"> { name</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-token-string-expression)"> &#x27;Jar-Jar&#x27;</span><span style="color:var(--shiki-foreground)"> } });</span></span>
<span class="line"><span style="color:var(--shiki-token-function)">  expect</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-constant)">screen</span><span style="color:var(--shiki-token-function)">.getByText</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-string-expression)">/hello Jar-Jar/</span><span style="color:var(--shiki-token-keyword)">i</span><span style="color:var(--shiki-foreground)">))</span><span style="color:var(--shiki-token-function)">.toBeOnTheScreen</span><span style="color:var(--shiki-foreground)">();</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">});</span></span>
<span class="line"></span>
<span class="line"><span style="color:var(--shiki-token-function)">test</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-string-expression)">&#x27;renders WelcomeScreen without user&#x27;</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-token-keyword)"> async</span><span style="color:var(--shiki-foreground)"> () </span><span style="color:var(--shiki-token-keyword)">=&gt;</span><span style="color:var(--shiki-foreground)"> {</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">  await</span><span style="color:var(--shiki-token-function)"> renderWithProviders</span><span style="color:var(--shiki-foreground)">(&lt;</span><span style="color:var(--shiki-token-constant)">WelcomeScreen</span><span style="color:var(--shiki-foreground)"> /&gt;</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-foreground)"> { user</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-token-constant)"> null</span><span style="color:var(--shiki-foreground)"> });</span></span>
<span class="line"><span style="color:var(--shiki-token-function)">  expect</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-constant)">screen</span><span style="color:var(--shiki-token-function)">.getByText</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-string-expression)">/hello stranger/</span><span style="color:var(--shiki-token-keyword)">i</span><span style="color:var(--shiki-foreground)">))</span><span style="color:var(--shiki-token-function)">.toBeOnTheScreen</span><span style="color:var(--shiki-foreground)">();</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">});</span></span></code></pre></div><div class="rp-code-button-group"><button class="rp-code-button-group__button rp-code-wrap-button" title="Toggle code wrap"><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrapped"><path fill="currentColor" d="M21 5H3v2h18zM3 19h7v-2H3zm0-6h15c1 0 2 .43 2 2s-1 2-2 2h-2v-2l-4 3 4 3v-2h2c2.95 0 4-1.27 4-4 0-2.72-1-4-4-4H3z"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrap"><path fill="currentColor" d="M16 7H3V5h13zM3 19h13v-2H3zm19-7-4-3v2H3v2h15v2z"></path></svg></button><button class="rp-code-button-group__button rp-code-copy-button" title="Copy code"><svg xmlns="http://www.w3.org/2000/svg" width="272" height="272" viewBox="0 0 272 272" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--copy"><path fill="currentColor" fill-rule="evenodd" d="M45.883 23.368h123.823v22.514H68.396v146.336H45.883zm45.026 45.027H225.99v180.107H90.91zm22.514 22.513v135.08h90.053V90.908z" clip-rule="evenodd"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="271" height="271" viewBox="0 0 271 271" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--success"><path fill="currentColor" d="M112.687 203.223H90.174v-22.514h22.512v-22.514h22.512v22.514h-22.511zm-22.514-22.514H67.66v-22.514h22.513zm-22.514-22.514H45.146v-22.512H67.66zm90.054 0h-22.514v-22.512h22.514zm22.514-22.512h-22.514v-22.514h22.514zm22.513-22.514h-22.513V90.655h22.513zm22.514-22.514H202.74V68.143h22.514z"></path></svg></button></div></div></div>
<p>Example <a href="https://github.com/callstack/react-native-testing-library/tree/main/examples/cookbook/custom-render" target="_blank" rel="noopener noreferrer" class="rp-link">full source code</a>.</p>
<h3 class="rp-toc-include" id="more-info"><a href="#more-info" class="rp-header-anchor rp-link" aria-hidden="true">#</a>More info</h3>
<h4 class="rp-toc-include" id="additional-params"><a href="#additional-params" class="rp-header-anchor rp-link" aria-hidden="true">#</a>Additional params</h4>
<p>A custom render function might accept additional parameters to allow for setting up different start conditions for a test, e.g., the initial state for global state management.</p>
<div class="rp-codeblock language-tsx"><div class="rp-codeblock__title">SomeScreen.test.tsx</div><div class="rp-codeblock__content"><div class="rp-codeblock__content__scroll-container rp-scrollbar rp-scrollbar--always"><pre class="shiki css-variables" style="background-color:var(--shiki-background);color:var(--shiki-foreground)" tabindex="0" data-lang="tsx" data-title="SomeScreen.test.tsx"><code><span class="line"><span style="color:var(--shiki-token-function)">test</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-string-expression)">&#x27;renders SomeScreen for logged in user&#x27;</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-token-keyword)"> async</span><span style="color:var(--shiki-foreground)"> () </span><span style="color:var(--shiki-token-keyword)">=&gt;</span><span style="color:var(--shiki-foreground)"> {</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">  await</span><span style="color:var(--shiki-token-function)"> renderScreen</span><span style="color:var(--shiki-foreground)">(&lt;</span><span style="color:var(--shiki-token-constant)">SomeScreen</span><span style="color:var(--shiki-foreground)"> /&gt;</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-foreground)"> { state</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-foreground)"> loggedInState });</span></span>
<span class="line"><span style="color:var(--shiki-token-comment)">  // ...</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">});</span></span></code></pre></div><div class="rp-code-button-group"><button class="rp-code-button-group__button rp-code-wrap-button" title="Toggle code wrap"><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrapped"><path fill="currentColor" d="M21 5H3v2h18zM3 19h7v-2H3zm0-6h15c1 0 2 .43 2 2s-1 2-2 2h-2v-2l-4 3 4 3v-2h2c2.95 0 4-1.27 4-4 0-2.72-1-4-4-4H3z"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrap"><path fill="currentColor" d="M16 7H3V5h13zM3 19h13v-2H3zm19-7-4-3v2H3v2h15v2z"></path></svg></button><button class="rp-code-button-group__button rp-code-copy-button" title="Copy code"><svg xmlns="http://www.w3.org/2000/svg" width="272" height="272" viewBox="0 0 272 272" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--copy"><path fill="currentColor" fill-rule="evenodd" d="M45.883 23.368h123.823v22.514H68.396v146.336H45.883zm45.026 45.027H225.99v180.107H90.91zm22.514 22.513v135.08h90.053V90.908z" clip-rule="evenodd"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="271" height="271" viewBox="0 0 271 271" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--success"><path fill="currentColor" d="M112.687 203.223H90.174v-22.514h22.512v-22.514h22.512v22.514h-22.511zm-22.514-22.514H67.66v-22.514h22.513zm-22.514-22.514H45.146v-22.512H67.66zm90.054 0h-22.514v-22.512h22.514zm22.514-22.512h-22.514v-22.514h22.514zm22.513-22.514h-22.513V90.655h22.513zm22.514-22.514H202.74V68.143h22.514z"></path></svg></button></div></div></div>
<h4 class="rp-toc-include" id="multiple-functions"><a href="#multiple-functions" class="rp-header-anchor rp-link" aria-hidden="true">#</a>Multiple functions</h4>
<p>Depending on the situation, you may declare more than one custom render function. For example, you have one function for testing application flows and a second for testing individual screens.</p>
<div class="rp-codeblock language-tsx"><div class="rp-codeblock__title">test-utils.tsx</div><div class="rp-codeblock__content"><div class="rp-codeblock__content__scroll-container rp-scrollbar rp-scrollbar--always"><pre class="shiki css-variables" style="background-color:var(--shiki-background);color:var(--shiki-foreground)" tabindex="0" data-lang="tsx" data-title="test-utils.tsx"><code><span class="line"><span style="color:var(--shiki-token-keyword)">function</span><span style="color:var(--shiki-token-function)"> renderNavigator</span><span style="color:var(--shiki-foreground)">(ui</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-foreground)"> options);</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">function</span><span style="color:var(--shiki-token-function)"> renderScreen</span><span style="color:var(--shiki-foreground)">(ui</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-foreground)"> options);</span></span></code></pre></div><div class="rp-code-button-group"><button class="rp-code-button-group__button rp-code-wrap-button" title="Toggle code wrap"><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrapped"><path fill="currentColor" d="M21 5H3v2h18zM3 19h7v-2H3zm0-6h15c1 0 2 .43 2 2s-1 2-2 2h-2v-2l-4 3 4 3v-2h2c2.95 0 4-1.27 4-4 0-2.72-1-4-4-4H3z"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrap"><path fill="currentColor" d="M16 7H3V5h13zM3 19h13v-2H3zm19-7-4-3v2H3v2h15v2z"></path></svg></button><button class="rp-code-button-group__button rp-code-copy-button" title="Copy code"><svg xmlns="http://www.w3.org/2000/svg" width="272" height="272" viewBox="0 0 272 272" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--copy"><path fill="currentColor" fill-rule="evenodd" d="M45.883 23.368h123.823v22.514H68.396v146.336H45.883zm45.026 45.027H225.99v180.107H90.91zm22.514 22.513v135.08h90.053V90.908z" clip-rule="evenodd"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="271" height="271" viewBox="0 0 271 271" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--success"><path fill="currentColor" d="M112.687 203.223H90.174v-22.514h22.512v-22.514h22.512v22.514h-22.511zm-22.514-22.514H67.66v-22.514h22.513zm-22.514-22.514H45.146v-22.512H67.66zm90.054 0h-22.514v-22.512h22.514zm22.514-22.512h-22.514v-22.514h22.514zm22.513-22.514h-22.513V90.655h22.513zm22.514-22.514H202.74V68.143h22.514z"></path></svg></button></div></div></div>
<h4 class="rp-toc-include" id="async-setup"><a href="#async-setup" class="rp-header-anchor rp-link" aria-hidden="true">#</a>Async setup</h4>
<p>Since <code>render</code> is async, your custom render function should be marked as <code>async</code> and use <code>await render()</code>. This pattern also makes it easy to add additional async setup if needed:</p>
<div class="rp-codeblock language-tsx"><div class="rp-codeblock__title">SomeScreen.test.tsx</div><div class="rp-codeblock__content"><div class="rp-codeblock__content__scroll-container rp-scrollbar rp-scrollbar--always"><pre class="shiki css-variables" style="background-color:var(--shiki-background);color:var(--shiki-foreground)" tabindex="0" data-lang="tsx" data-title="SomeScreen.test.tsx"><code><span class="line"><span style="color:var(--shiki-token-keyword)">async</span><span style="color:var(--shiki-token-keyword)"> function</span><span style="color:var(--shiki-token-function)"> renderWithData</span><span style="color:var(--shiki-foreground)">&lt;</span><span style="color:var(--shiki-token-function)">T</span><span style="color:var(--shiki-foreground)">&gt;(ui</span><span style="color:var(--shiki-token-keyword)">:</span><span style="color:var(--shiki-token-function)"> React</span><span style="color:var(--shiki-foreground)">.</span><span style="color:var(--shiki-token-function)">ReactElement</span><span style="color:var(--shiki-foreground)">&lt;</span><span style="color:var(--shiki-token-function)">T</span><span style="color:var(--shiki-foreground)">&gt;) {</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">  const</span><span style="color:var(--shiki-token-constant)"> data</span><span style="color:var(--shiki-token-keyword)"> =</span><span style="color:var(--shiki-token-keyword)"> await</span><span style="color:var(--shiki-token-function)"> fetchTestData</span><span style="color:var(--shiki-foreground)">();</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">  return</span><span style="color:var(--shiki-token-keyword)"> await</span><span style="color:var(--shiki-token-function)"> render</span><span style="color:var(--shiki-foreground)">(&lt;</span><span style="color:var(--shiki-token-constant)">DataProvider</span><span style="color:var(--shiki-token-function)"> value</span><span style="color:var(--shiki-token-keyword)">=</span><span style="color:var(--shiki-foreground)">{data}&gt;{ui}&lt;/</span><span style="color:var(--shiki-token-constant)">DataProvider</span><span style="color:var(--shiki-foreground)">&gt;);</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:var(--shiki-token-function)">test</span><span style="color:var(--shiki-foreground)">(</span><span style="color:var(--shiki-token-string-expression)">&#x27;renders SomeScreen&#x27;</span><span style="color:var(--shiki-token-punctuation)">,</span><span style="color:var(--shiki-token-keyword)"> async</span><span style="color:var(--shiki-foreground)"> () </span><span style="color:var(--shiki-token-keyword)">=&gt;</span><span style="color:var(--shiki-foreground)"> {</span></span>
<span class="line"><span style="color:var(--shiki-token-keyword)">  await</span><span style="color:var(--shiki-token-function)"> renderWithData</span><span style="color:var(--shiki-foreground)">(&lt;</span><span style="color:var(--shiki-token-constant)">SomeScreen</span><span style="color:var(--shiki-foreground)"> /&gt;);</span></span>
<span class="line"><span style="color:var(--shiki-token-comment)">  // ...</span></span>
<span class="line"><span style="color:var(--shiki-foreground)">});</span></span></code></pre></div><div class="rp-code-button-group"><button class="rp-code-button-group__button rp-code-wrap-button" title="Toggle code wrap"><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrapped"><path fill="currentColor" d="M21 5H3v2h18zM3 19h7v-2H3zm0-6h15c1 0 2 .43 2 2s-1 2-2 2h-2v-2l-4 3 4 3v-2h2c2.95 0 4-1.27 4-4 0-2.72-1-4-4-4H3z"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24" class="rp-code-button-group__icon rp-code-button-group__icon--wrap"><path fill="currentColor" d="M16 7H3V5h13zM3 19h13v-2H3zm19-7-4-3v2H3v2h15v2z"></path></svg></button><button class="rp-code-button-group__button rp-code-copy-button" title="Copy code"><svg xmlns="http://www.w3.org/2000/svg" width="272" height="272" viewBox="0 0 272 272" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--copy"><path fill="currentColor" fill-rule="evenodd" d="M45.883 23.368h123.823v22.514H68.396v146.336H45.883zm45.026 45.027H225.99v180.107H90.91zm22.514 22.513v135.08h90.053V90.908z" clip-rule="evenodd"></path></svg><svg xmlns="http://www.w3.org/2000/svg" width="271" height="271" viewBox="0 0 271 271" class="rp-code-button-group__icon rp-code-copy-button__icon rp-code-copy-button__icon--success"><path fill="currentColor" d="M112.687 203.223H90.174v-22.514h22.512v-22.514h22.512v22.514h-22.511zm-22.514-22.514H67.66v-22.514h22.513zm-22.514-22.514H45.146v-22.512H67.66zm90.054 0h-22.514v-22.512h22.514zm22.514-22.512h-22.514v-22.514h22.514zm22.513-22.514h-22.513V90.655h22.513zm22.514-22.514H202.74V68.143h22.514z"></path></svg></button></div></div></div><!--/$--></div><div class="container-uhcWmO"><img class="logo-IwzwG8" src="/react-native-testing-library/static/image/abstract-atom.4eca0300ff.avif" alt="Abstract Logo" aria-hidden="true"/><div class="content-uJxcIj"><div class="headlineContainer-NHNT4y"><h1 class="headline-iCUUUl">Need React or React Native
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