119 lines
4.2 KiB
HTML
119 lines
4.2 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=975681
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-->
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<head>
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<meta charset="utf-8">
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<title> Test for Bug 975681 </title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"> </script>
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<script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"> </script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=975681"> Mozilla Bug 975681 </a>
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<p id="display"></p>
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<p>
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<math>
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<mfrac id="test_mfrac">
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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</mfrac>
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</math>
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</p>
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<p>
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<math>
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<mfrac linethickness="30px" id="mfrac_linethickness">
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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</mfrac>
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</math>
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</p>
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<p>
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<math>
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<mfrac numalign="left" id="mfrac_numalign">
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<mspace width="50px" height="20px" mathbackground="red"></mspace>
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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</mfrac>
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</math>
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</p>
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<p>
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<math>
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<mfrac denomalign="right" id="mfrac_denomalign">
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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<mspace width="50px" height="20px" mathbackground="red"></mspace>
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</mfrac>
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</math>
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</p>
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<p>
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<math>
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<mfrac bevelled="true" id="mfrac_bevelled">
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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<mspace width="100px" height="20px" mathbackground="red"></mspace>
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</mfrac>
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</math>
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</p>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 975681 **/
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SimpleTest.waitForExplicitFinish();
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var epsilon = 1; // allow a small relative error
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var delta = .25; // used to indicate a small shift
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function almostEqualAbs(x, y) {
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var e = Math.abs(x - y);
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return (e <= epsilon);
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}
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function almostLessThanAbs(x, y) {
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var e = x - y;
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return (e <= epsilon);
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}
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// test: mfrac
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var mfracNum = document.getElementById("test_mfrac").firstElementChild.getBoundingClientRect();
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var mfracDenom = document.getElementById("test_mfrac").lastElementChild.getBoundingClientRect();
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ok(almostEqualAbs(mfracNum.left, mfracDenom.left) &&
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almostEqualAbs(mfracNum.right, mfracDenom.right), "Numerator and denominator should be vertical aligned");
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ok(almostLessThanAbs(mfracNum.bottom, mfracDenom.top), "Numerator should be above denominator");
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// test: mfrac attributes
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var mfrac = document.getElementById("mfrac_linethickness").getBoundingClientRect();
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var num = document.getElementById("mfrac_linethickness").firstElementChild.getBoundingClientRect();
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var denom = document.getElementById("mfrac_linethickness").lastElementChild.getBoundingClientRect();
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ok(almostLessThanAbs(num.height + 30 + denom.height, mfrac.height) &&
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almostLessThanAbs(num.bottom + 30, denom.top), "numerator and denominator should be separated by linethickness");
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num = document.getElementById("mfrac_numalign").firstElementChild.getBoundingClientRect();
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mfrac = document.getElementById("mfrac_numalign").getBoundingClientRect();
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ok(almostEqualAbs(num.left, mfrac.left), "numerator should be aligned left");
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mfrac = document.getElementById("mfrac_denomalign").getBoundingClientRect();
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denom = document.getElementById("mfrac_denomalign").lastElementChild.getBoundingClientRect();
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ok(almostEqualAbs(mfrac.right, denom.right), "denominator should be aligned right");
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num = document.getElementById("mfrac_bevelled").firstElementChild.getBoundingClientRect();
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denom = document.getElementById("mfrac_bevelled").lastElementChild.getBoundingClientRect();
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ok(almostLessThanAbs(num.right, denom.left) &&
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almostLessThanAbs(num.top*(1-delta)+num.bottom*delta, denom.top), "incorrect position of mfrac children");
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SimpleTest.finish();
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</script>
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</body>
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</html>
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