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" /> <link rel="shortcut icon" type="image/vnd.microsoft.icon" href="/static/bug-icon-black.ico"> <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="/assertions/any/to-be-a/">Assertions</a></li> <li class=""><a href="/api/addAssertion/">API</a></li> </ul> </nav> <div class="search" style="visibility: hidden"> <input id="search" placeholder="Search..." value=""> <div id="searchDropDown" class="dropDown"> <ul id="searchResults"></ul> </div> </div> </header> <section id="assertions"> <nav id="assertion-menu" class="sidebar js-remember-scroll-position"> <ul> <li> <h3>any</h3> <ul> <li class=""> <a href="/assertions/any/to-be-a/">to be a</a> </li> <li class=""> <a href="/assertions/any/to-be-falsy/">to be falsy</a> </li> <li class=""> <a href="/assertions/any/to-be-null/">to be null</a> </li> <li class=""> <a href="/assertions/any/to-be-ok/">to be ok</a> </li> <li class=""> <a href="/assertions/any/to-be-truthy/">to be truthy</a> </li> <li class=""> <a href="/assertions/any/to-be-undefined/">to be undefined</a> </li> <li class=""> <a href="/assertions/any/to-be/">to be</a> </li> <li class=""> <a href="/assertions/any/to-equal/">to equal</a> </li> <li class=""> <a href="/assertions/any/to-satisfy/">to satisfy</a> </li> <li class=""> <a href="/assertions/any/to-be-defined/">to be defined</a> </li> </ul> </li> <li> <h3>array</h3> <ul> <li class="active"> <a href="/assertions/array/to-be-an-array-whose-items-satisfy/">to be an array whose items satisfy</a> </li> <li class=""> <a href="/assertions/array/to-be-empty/">to be empty</a> </li> <li class=""> <a href="/assertions/array/to-be-non-empty/">to be non-empty</a> </li> <li class=""> <a href="/assertions/array/to-contain/">to contain</a> </li> <li class=""> <a href="/assertions/array/to-have-length/">to have length</a> </li> </ul> </li> <li> <h3>boolean</h3> <ul> <li class=""> <a href="/assertions/boolean/to-be-false/">to be false</a> </li> <li class=""> <a href="/assertions/boolean/to-be-true/">to be true</a> </li> </ul> </li> <li> <h3>function</h3> <ul> <li class=""> <a href="/assertions/function/to-have-arity/">to have arity</a> </li> <li class=""> <a href="/assertions/function/to-throw/">to throw</a> </li> </ul> </li> <li> <h3>number</h3> <ul> <li class=""> <a href="/assertions/number/to-be-greater-than/">to be greater than</a> </li> <li class=""> <a href="/assertions/number/to-be-infinite/">to be infinite</a> </li> <li class=""> <a href="/assertions/number/to-be-close-to/">to be close to</a> </li> <li class=""> <a href="/assertions/number/to-be-finite/">to be finite</a> </li> <li class=""> <a href="/assertions/number/to-be-greater-than-or-equal-to/">to be greater than or equal to</a> </li> <li class=""> <a href="/assertions/number/to-be-NaN/">to be NaN</a> </li> <li class=""> <a href="/assertions/number/to-be-less-than-or-equal-to/">to be less than or equal to</a> </li> <li class=""> <a href="/assertions/number/to-be-less-than/">to be less than</a> </li> <li class=""> <a href="/assertions/number/to-be-negative/">to be negative</a> </li> <li class=""> <a href="/assertions/number/to-be-positive/">to be positive</a> </li> <li class=""> <a href="/assertions/number/to-be-within/">to be within</a> </li> </ul> </li> <li> <h3>object</h3> <ul> <li class=""> <a href="/assertions/object/to-be-a-map-whose-keys-satisfy/">to be a map whose keys satisfy</a> </li> <li class=""> <a href="/assertions/object/to-be-a-map-whose-values-satisfy/">to be a map whose values satisfy</a> </li> <li class=""> <a href="/assertions/object/to-be-canonical/">to be canonical</a> </li> <li class=""> <a href="/assertions/object/to-have-key/">to have key</a> </li> <li class=""> <a href="/assertions/object/to-have-keys/">to have keys</a> </li> <li class=""> <a href="/assertions/object/to-have-properties/">to have properties</a> </li> <li class=""> <a href="/assertions/object/to-have-property/">to have property</a> </li> </ul> </li> <li> <h3>string</h3> <ul> <li class=""> <a href="/assertions/string/to-be-non-empty/">to be non-empty</a> </li> <li class=""> <a href="/assertions/string/to-be-empty/">to be empty</a> </li> <li class=""> <a href="/assertions/string/to-be-greater-than/">to be greater than</a> </li> <li class=""> <a href="/assertions/string/to-be-less-than-or-equal-to/">to be less than or equal to</a> </li> <li class=""> <a href="/assertions/string/to-be-less-than/">to be less than</a> </li> <li class=""> <a href="/assertions/string/to-be-greater-than-or-equal-to/">to be greater than or equal to</a> </li> <li class=""> <a href="/assertions/string/to-be-within/">to be within</a> </li> <li class=""> <a href="/assertions/string/to-be/">to be</a> </li> <li class=""> <a href="/assertions/string/to-contain/">to contain</a> </li> <li class=""> <a href="/assertions/string/to-have-length/">to have length</a> </li> <li class=""> <a href="/assertions/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: #a71d5d">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: #a71d5d">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> <script type="text/javascript" src="/static/search.js"></script> </body> </html>