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Test Info:
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
"use strict";
// Test that grid layouts without items don't cause grid highlighter errors.
const TEST_URL = `
<style type='text/css'>
.grid {
display: grid;
grid-template-columns: 20px 20px;
grid-gap: 15px;
}
</style>
<div class="grid"></div>
`;
const HIGHLIGHTER_TYPE = "CssGridHighlighter";
add_task(async function () {
const { inspector, highlighterTestFront } = await openInspectorForURL(
"data:text/html;charset=utf-8," + encodeURIComponent(TEST_URL)
);
const front = inspector.inspectorFront;
const highlighter = await front.getHighlighterByType(HIGHLIGHTER_TYPE);
info("Try to show the highlighter on the grid container");
const node = await getNodeFront(".grid", inspector);
await highlighter.show(node);
let hidden = await highlighterTestFront.getHighlighterNodeAttribute(
"css-grid-canvas",
"hidden",
highlighter
);
ok(!hidden, "The highlighter is visible");
info("Hiding the highlighter");
await highlighter.hide();
hidden = await highlighterTestFront.getHighlighterNodeAttribute(
"css-grid-canvas",
"hidden",
highlighter
);
ok(hidden, "The highlighter is hidden");
await highlighter.finalize();
});