<!DOCTYPE HTML> <html> <head> <title>Test for serialization and equivalence of length units</title> <script type="application/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=">Mozilla Bug </a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for serialization and equivalence of length units **/ /** * We test that for each of the following: * + they reserialize to exactly what is given * + if a mapping is provided, they compute to the same result as the mapping */ var tests = { "1in": "72pt", "20mm": "2cm", "2.54cm": "1in", "36pt": "0.5in", "4pc": "48pt", "1em": null, "3ex": null, "57px": null, "5rem": null }; var p = document.getElementById("display"); for (var test in tests) { p.setAttribute("style", "margin-left: " + test); is(p.style.getPropertyValue("margin-left"), test, test + " serializes to exactly itself"); var equiv = tests[test]; if (equiv) { var cm1 = getComputedStyle(p, "").marginLeft; p.style.marginLeft = equiv; var cm2 = getComputedStyle(p, "").marginLeft; is(cm1, cm2, test + " should compute to the same as " + equiv); } } // Bug 393910 p.setAttribute("style", "margin-left: 0"); is(p.style.getPropertyValue("margin-left"), "0px", "0 serializes to 0px"); </script> </pre> </body> </html>