mozilla-central/dom/svg/test/test_viewBox.html

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Test Info:

<!DOCTYPE html>
<!--
-->
<head>
<title>Test for Bug 1396642</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none"></div>
<div id="svg"></div>
<pre id="test">
<script class="testbody" type="application/javascript">
SimpleTest.waitForExplicitFinish();
function runTest() {
var testsElement = $("svg");
// Turn for instance `2.3` into `230` (px). Round to avoid floating point
// issues.
const scale = (number) => Math.round(100 * number);
const widths = [2, 2.3, 2.5, 2.8];
const heights = [3, 3.3, 3.5, 3.8];
for (const width of widths) {
for (const height of heights) {
const variations = [
{width, height},
{width: "auto", height},
{width, height: "auto"},
{width: "auto", height: "auto"},
];
for (const variation of variations) {
const svgWrapperElement = document.createElement("div");
svgWrapperElement.style.width =
variation.width === "auto" && variation.height === "auto"
? `${scale(width)}px`
: "auto";
const svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg");
svgElement.setAttribute("viewBox", `0 0 ${width} ${height}`);
svgElement.style.width =
typeof variation.width === "number"
? `${scale(variation.width)}px`
: variation.width;
svgElement.style.height =
typeof variation.height === "number"
? `${scale(variation.height)}px`
: variation.height;
svgWrapperElement.appendChild(svgElement);
testsElement.appendChild(svgWrapperElement);
const rect = svgElement.getBoundingClientRect();
const actual = {
width: Math.round(rect.width),
height: Math.round(rect.height),
};
const expected = {
width: scale(width),
height: scale(height),
};
isfuzzy(expected.width, actual.width, 0.001, "checking width");
isfuzzy(expected.height, actual.height, 0.001, "checking height");
}
}
}
SimpleTest.finish();
}
window.addEventListener("load", runTest);
</script>
</pre>
</body>
</html>