{"version":"1.0","provider_name":"ANGULARarchitects","provider_url":"https:\/\/www.angulararchitects.io\/en\/","author_name":"Marcell Kiss","author_url":"https:\/\/www.angulararchitects.io\/en\/blog\/author\/marcell-kiss\/","title":"Migrate from Karma To Vitest - ANGULARarchitects","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"ZulCYUmbgb\"><a href=\"https:\/\/www.angulararchitects.io\/en\/blog\/migrate-from-karma-to-vitest\/\">Migrate from Karma To Vitest<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.angulararchitects.io\/en\/blog\/migrate-from-karma-to-vitest\/embed\/#?secret=ZulCYUmbgb\" width=\"600\" height=\"338\" title=\"&#8220;Migrate from Karma To Vitest&#8221; &#8212; ANGULARarchitects\" data-secret=\"ZulCYUmbgb\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.angulararchitects.io\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.angulararchitects.io\/wp-content\/uploads\/2026\/04\/As-Karma-is-Deprecated-1024x536.png","thumbnail_width":600,"thumbnail_height":327,"description":"Contents Why Vitest instead of Karma? More on Vitest Before starting the migration Confirm you\u2019re using the application build system Decide on the migration strategy Check your current behavior Migration steps for Angular CLI workspaces Updating Angular Remove Karma Install dependencies and adjust configs Use a custom Vitest config Migrate existing test files Prompts (Optional): [&hellip;]"}