unexpected

<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=0"> <link rel="stylesheet" href="../../../static/normalize.css" type="text/css" media="screen" /> <link rel="stylesheet" href="../../../static/main.css" type="text/css" media="screen" /> <title>array - to be an array whose items satisfy</title> </head> <body class="sidebar-hidden has-sidebar"> <header> <div class="logo-icon"></div> <nav> <ul> <li class="menu-toggle-item"> <button class="menu-toggle" onclick="toggleSidebar()"></button> </li> <li class=""><a href="../../..">Unexpected</a></li> <li class="active"><a href="../../any/to-be-a">Assertions</a></li> <li class=""><a href="../../../api/addAssertion">API</a></li> </ul> </nav> </header> <section id="assertions"> <nav id="assertion-menu" class="sidebar js-remember-scroll-position"> <ul> <li> <h3>any</h3> <ul> <li class=""> <a href="../../any/to-be-a">to be a</a> </li> <li class=""> <a href="../../any/to-be-falsy">to be falsy</a> </li> <li class=""> <a href="../../any/to-be-null">to be null</a> </li> <li class=""> <a href="../../any/to-be-truthy">to be truthy</a> </li> <li class=""> <a href="../../any/to-be-ok">to be ok</a> </li> <li class=""> <a href="../../any/to-be-undefined">to be undefined</a> </li> <li class=""> <a href="../../any/to-be">to be</a> </li> <li class=""> <a href="../../any/to-equal">to equal</a> </li> <li class=""> <a href="../../any/to-satisfy">to satisfy</a> </li> <li class=""> <a href="../../any/to-be-defined">to be defined</a> </li> </ul> </li> <li> <h3>array</h3> <ul> <li class="active"> <a href="">to be an array whose items satisfy</a> </li> <li class=""> <a href="../to-be-empty">to be empty</a> </li> <li class=""> <a href="../to-contain">to contain</a> </li> <li class=""> <a href="../to-have-length">to have length</a> </li> </ul> </li> <li> <h3>boolean</h3> <ul> <li class=""> <a href="../../boolean/to-be-true">to be true</a> </li> <li class=""> <a href="../../boolean/to-be-false">to be false</a> </li> </ul> </li> <li> <h3>function</h3> <ul> <li class=""> <a href="../../function/to-have-arity">to have arity</a> </li> <li class=""> <a href="../../function/to-throw">to throw</a> </li> </ul> </li> <li> <h3>number</h3> <ul> <li class=""> <a href="../../number/to-be-infinite">to be infinite</a> </li> <li class=""> <a href="../../number/to-be-NaN">to be NaN</a> </li> <li class=""> <a href="../../number/to-be-finite">to be finite</a> </li> <li class=""> <a href="../../number/to-be-greater-than-or-equal-to">to be greater than or equal to</a> </li> <li class=""> <a href="../../number/to-be-greater-than">to be greater than</a> </li> <li class=""> <a href="../../number/to-be-close-to">to be close to</a> </li> <li class=""> <a href="../../number/to-be-less-than-or-equal-to">to be less than or equal to</a> </li> <li class=""> <a href="../../number/to-be-less-than">to be less than</a> </li> <li class=""> <a href="../../number/to-be-negative">to be negative</a> </li> <li class=""> <a href="../../number/to-be-positive">to be positive</a> </li> <li class=""> <a href="../../number/to-be-within">to be within</a> </li> </ul> </li> <li> <h3>object</h3> <ul> <li class=""> <a href="../../object/to-have-properties">to have properties</a> </li> <li class=""> <a href="../../object/to-be-a-map-whose-keys-satisfy">to be a map whose keys satisfy</a> </li> <li class=""> <a href="../../object/to-be-a-map-whose-values-satisfy">to be a map whose values satisfy</a> </li> <li class=""> <a href="../../object/to-be-canonical">to be canonical</a> </li> <li class=""> <a href="../../object/to-have-key">to have key</a> </li> <li class=""> <a href="../../object/to-have-keys">to have keys</a> </li> <li class=""> <a href="../../object/to-have-property">to have property</a> </li> </ul> </li> <li> <h3>string</h3> <ul> <li class=""> <a href="../../string/to-be-empty">to be empty</a> </li> <li class=""> <a href="../../string/to-be-greater-than-or-equal-to">to be greater than or equal to</a> </li> <li class=""> <a href="../../string/to-be-greater-than">to be greater than</a> </li> <li class=""> <a href="../../string/to-be-less-than-or-equal-to">to be less than or equal to</a> </li> <li class=""> <a href="../../string/to-be-less-than">to be less than</a> </li> <li class=""> <a href="../../string/to-be-within">to be within</a> </li> <li class=""> <a href="../../string/to-be">to be</a> </li> <li class=""> <a href="../../string/to-contain">to contain</a> </li> <li class=""> <a href="../../string/to-have-length">to have length</a> </li> <li class=""> <a href="../../string/to-match">to match</a> </li> </ul> </li> </ul> </nav> <div class="main"> <div class="content"> <p>Asserts that all items of an array satisfies a given function.</p> <div class="code lang-javascript"> <div><span style="color: #000000">expect</span><span style="color: #000000">([</span><span style="color: #0086b3">0</span><span style="color: #000000">,</span> <span style="color: #0086b3">1</span><span style="color: #000000">,</span> <span style="color: #0086b3">2</span><span style="color: #000000">,</span> <span style="color: #0086b3">3</span><span style="color: #000000">,</span> <span style="color: #0086b3">4</span><span style="color: #000000">],</span> <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span> <span style="color: #0086b3">function</span> <span style="color: #000000">(</span>item<span style="color: #000000">,</span> index<span style="color: #000000">)</span> <span style="color: #000000">{</span></div> <div>    <span style="color: #000000">expect</span><span style="color: #000000">(</span>item<span style="color: #000000">,</span> <span style="color: #df5000">'to be a number'</span><span style="color: #000000">);</span></div> <div><span style="color: #000000">});</span></div> <div> </div> <div><span style="color: #000000">expect</span><span style="color: #000000">([</span><span style="color: #0086b3">0</span><span style="color: #000000">,</span> <span style="color: #0086b3">1</span><span style="color: #000000">,</span> <span style="color: #0086b3">2</span><span style="color: #000000">,</span> <span style="color: #0086b3">3</span><span style="color: #000000">,</span> <span style="color: #0086b3">4</span><span style="color: #000000">],</span> <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span> <span style="color: #df5000">'to be a number'</span><span style="color: #000000">);</span></div> <div> </div> <div><span style="color: #000000">expect</span><span style="color: #000000">([[</span><span style="color: #0086b3">1</span><span style="color: #000000">],</span> <span style="color: #000000">[</span><span style="color: #0086b3">2</span><span style="color: #000000">]],</span> <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span></div> <div>       <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span> <span style="color: #df5000">'to be a number'</span><span style="color: #000000">);</span></div> <div> </div> <div><span style="color: #000000">expect</span><span style="color: #000000">([[],</span> <span style="color: #000000">[]],</span> <span style="color: #df5000">'to be a non-empty array whose items satisfy'</span><span style="color: #000000">,</span> <span style="color: #0086b3">function</span> <span style="color: #000000">(</span>item<span style="color: #000000">)</span> <span style="color: #000000">{</span></div> <div>    <span style="color: #000000">expect</span><span style="color: #000000">(</span>item<span style="color: #000000">,</span> <span style="color: #df5000">'to be an empty array'</span><span style="color: #000000">);</span></div> <div><span style="color: #000000">});</span></div> <div> </div> <div><span style="color: #000000">expect</span><span style="color: #000000">([</span><span style="color: #0086b3">1</span><span style="color: #000000">,</span> <span style="color: #0086b3">2</span><span style="color: #000000">,</span> <span style="color: #0086b3">3</span><span style="color: #000000">,</span> <span style="color: #0086b3">4</span><span style="color: #000000">],</span> <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span></div> <div>  expect<span style="color: #000000">.</span><span style="color: #000000">it</span><span style="color: #000000">(</span><span style="color: #df5000">'to be a number'</span><span style="color: #000000">).</span><span style="color: #000000">and</span><span style="color: #000000">(</span><span style="color: #df5000">'to be positive'</span><span style="color: #000000">));</span></div> </div><p>In case of a failing expectation you get the following output:</p> <div class="code lang-javascript"> <div><span style="color: #000000">expect</span><span style="color: #000000">([</span> <span style="color: #000000">[</span><span style="color: #0086b3">0</span><span style="color: #000000">,</span> <span style="color: #0086b3">1</span><span style="color: #000000">,</span> <span style="color: #0086b3">2</span><span style="color: #000000">],</span> <span style="color: #000000">[</span><span style="color: #0086b3">4</span><span style="color: #000000">,</span> <span style="color: #df5000">'5'</span><span style="color: #000000">,</span> <span style="color: #df5000">'6'</span><span style="color: #000000">],</span> <span style="color: #000000">[</span><span style="color: #0086b3">7</span><span style="color: #000000">,</span> <span style="color: #df5000">'8'</span><span style="color: #000000">,</span> <span style="color: #0086b3">9</span><span style="color: #000000">]</span> <span style="color: #000000">],</span></div> <div>  <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span></div> <div>  <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span></div> <div>  <span style="color: #df5000">'to be a number'</span><span style="color: #000000">);</span></div> </div><div class="output"> <div><span style="color: red; font-weight: bold">failed expectation in</span> <div style="display: inline-block; vertical-align: top"> <div>[ [ <span style="color: #0086b3">0</span>, <span style="color: #0086b3">1</span>, <span style="color: #0086b3">2</span> ], [ <span style="color: #0086b3">4</span>, <span style="color: #df5000">'5'</span>, <span style="color: #df5000">'6'</span> ], [ <span style="color: #0086b3">7</span>, <span style="color: #df5000">'8'</span>, <span style="color: #0086b3">9</span> ] ]<span style="color: red; font-weight: bold">:</span></div> </div></div> <div>  1: <div style="display: inline-block; vertical-align: top"> <div><span style="color: red; font-weight: bold">failed expectation in</span> <div style="display: inline-block; vertical-align: top"> <div>[ <span style="color: #0086b3">4</span>, <span style="color: #df5000">'5'</span>, <span style="color: #df5000">'6'</span> ]<span style="color: red; font-weight: bold">:</span></div> </div></div> <div>  1: <div style="display: inline-block; vertical-align: top"> <div><span style="color: red; font-weight: bold">expected</span> <span style="color: #df5000">'5'</span> <span style="color: red; font-weight: bold">to be a number</span></div> </div></div> <div>  2: <div style="display: inline-block; vertical-align: top"> <div><span style="color: red; font-weight: bold">expected</span> <span style="color: #df5000">'6'</span> <span style="color: red; font-weight: bold">to be a number</span></div> </div></div> </div></div> <div>  2: <div style="display: inline-block; vertical-align: top"> <div><span style="color: red; font-weight: bold">failed expectation in</span> <div style="display: inline-block; vertical-align: top"> <div>[ <span style="color: #0086b3">7</span>, <span style="color: #df5000">'8'</span>, <span style="color: #0086b3">9</span> ]<span style="color: red; font-weight: bold">:</span></div> </div></div> <div>  1: <div style="display: inline-block; vertical-align: top"> <div><span style="color: red; font-weight: bold">expected</span> <span style="color: #df5000">'8'</span> <span style="color: red; font-weight: bold">to be a number</span></div> </div></div> </div></div> </div><p>Here a another example:</p> <div class="code lang-javascript"> <div><span style="color: #000000">expect</span><span style="color: #000000">([</span><span style="color: #0086b3">0</span><span style="color: #000000">,</span> <span style="color: #0086b3">1</span><span style="color: #000000">,</span> <span style="color: #0086b3">2</span><span style="color: #000000">,</span> <span style="color: #0086b3">3</span><span style="color: #000000">,</span> <span style="color: #0086b3">4</span><span style="color: #000000">],</span> <span style="color: #df5000">'to be an array whose items satisfy'</span><span style="color: #000000">,</span></div> <div>  expect<span style="color: #000000">.</span><span style="color: #000000">it</span><span style="color: #000000">(</span><span style="color: #df5000">'to be a number'</span><span style="color: #000000">).</span><span style="color: #000000">and</span><span style="color: #000000">(</span><span style="color: #df5000">'to be positive'</span><span style="color: #000000">));</span></div> </div><div class="output"> <div><span style="color: red; font-weight: bold">failed expectation in</span> <div style="display: inline-block; vertical-align: top"> <div>[ <span style="color: #0086b3">0</span>, <span style="color: #0086b3">1</span>, <span style="color: #0086b3">2</span>, <span style="color: #0086b3">3</span>, <span style="color: #0086b3">4</span> ]<span style="color: red; font-weight: bold">:</span></div> </div></div> <div>  0: <div style="display: inline-block; vertical-align: top"> <div><span style="color: green; font-weight: bold">✓ </span><div style="display: inline-block; vertical-align: top"> <div><span style="color: green; font-weight: bold">expected </span>0 <span style="color: green; font-weight: bold">to be a number</span></div> </div><span style="color: #969896"> and</span></div> <div><span style="color: red; font-weight: bold">⨯ </span><div style="display: inline-block; vertical-align: top"> <div><span style="color: red; font-weight: bold">expected</span> <span style="color: #0086b3">0</span> <span style="color: red; font-weight: bold">to be positive</span></div> </div></div> </div></div> </div> </div> </div> </section> <script type="text/javascript" src="../../../static/toggleSidebar.js"></script> <script type="text/javascript" src="../../../static/rememberScrollPosition.js"></script> </body> </html>