gecko-dev/dom/svg/test/test_lengthParsing.html

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<!doctype html>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=946529
-->
<head>
<meta charset="utf-8">
<title>Test transform parsing</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=946529">Mozilla Bug 946529</a>
<p id="display"></p>
<div id="content" style="display: none">
<svg width="100%" height="1" id="svg">
<rect id="rect"/>
</svg>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
// Test cases
checkParseOk("", 0);
checkParseOk("-.1", -0.1);
checkParseOk("1e1", 10);
checkParseOk("1em", 1, "em");
checkParseOk("1ex", 1, "ex");
checkParseOk("1e1em", 10, "em");
checkParseOk("1E+2", 100);
checkParseOk(".1e-2", 0.001);
// Fail cases
checkParseFail("1e");
checkParseFail("1 e");
checkParseFail("1 em");
checkParseFail("1ee");
function checkParseOk(spec, valueInUnits, units) {
var rect = document.getElementById("rect");
// Clear previous value
rect.removeAttribute("x");
rect.setAttribute("x", spec);
// Check number part
const tolerance = 1 / 65535;
var actual = rect.x.baseVal.valueInSpecifiedUnits;
ok(Math.abs(actual - valueInUnits) < tolerance,
spec + ' (value) - got ' + actual + ', expected ' + valueInUnits);
// Check unit part
var unitMapping = {
"unknown": SVGLength.SVG_LENGTHTYPE_UNKNOWN,
"": SVGLength.SVG_LENGTHTYPE_NUMBER,
"%": SVGLength.SVG_LENGTHTYPE_PERCENTAGE,
"em": SVGLength.SVG_LENGTHTYPE_EMS,
"ex": SVGLength.SVG_LENGTHTYPE_EXS,
"px": SVGLength.SVG_LENGTHTYPE_PX,
"cm": SVGLength.SVG_LENGTHTYPE_CM,
"mm": SVGLength.SVG_LENGTHTYPE_MM,
"in": SVGLength.SVG_LENGTHTYPE_IN,
"pt": SVGLength.SVG_LENGTHTYPE_PT,
"pc": SVGLength.SVG_LENGTHTYPE_PC
};
if (typeof units == "undefined") {
units = "";
}
is(rect.x.baseVal.unitType, unitMapping[units], spec + " (unit)");
}
function checkParseFail(spec) {
checkParseOk(spec, 0);
}
</script>
</pre>
</body>
</html>