browser_rules_grid-highlighter-on-mutation.js (1646B)
1 /* Any copyright is dedicated to the Public Domain. 2 http://creativecommons.org/publicdomain/zero/1.0/ */ 3 4 "use strict"; 5 6 // Tests that the grid highlighter is hidden when the highlighted grid container is 7 // removed from the page. 8 9 const TEST_URI = ` 10 <style type='text/css'> 11 #grid { 12 display: grid; 13 } 14 </style> 15 <div id="grid"> 16 <div id="cell1">cell1</div> 17 <div id="cell2">cell2</div> 18 </div> 19 `; 20 21 add_task(async function () { 22 await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI)); 23 const { inspector, view } = await openRuleView(); 24 const highlighters = inspector.highlighters; 25 const HIGHLIGHTER_TYPE = inspector.highlighters.TYPES.GRID; 26 const { waitForHighlighterTypeShown, waitForHighlighterTypeHidden } = 27 getHighlighterTestHelpers(inspector); 28 29 await selectNode("#grid", inspector); 30 const container = getRuleViewProperty(view, "#grid", "display").valueSpan; 31 const gridToggle = container.querySelector(".js-toggle-grid-highlighter"); 32 33 info("Toggling ON the CSS grid highlighter from the rule-view."); 34 const onHighlighterShown = waitForHighlighterTypeShown(HIGHLIGHTER_TYPE); 35 gridToggle.click(); 36 await onHighlighterShown; 37 is(highlighters.gridHighlighters.size, 1, "CSS grid highlighter is shown."); 38 39 const onHighlighterHidden = waitForHighlighterTypeHidden(HIGHLIGHTER_TYPE); 40 info("Remove the #grid container in the content page"); 41 await SpecialPowers.spawn(gBrowser.selectedBrowser, [], () => 42 content.document.querySelector("#grid").remove() 43 ); 44 await onHighlighterHidden; 45 ok(!highlighters.gridHighlighters.size, "CSS grid highlighter is hidden."); 46 });