<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id= --> <head> <title>Test for Bug </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> <canvas id="display" height="200" width="200"></canvas> <pre id="test"> <script type="application/javascript"> var canvas = document.getElementById("display"); var cx = canvas.getContext("2d"); is(cx.font, "10px sans-serif", "initial font of canvas context"); cx.font = "italic 16px sans-serif"; is(cx.font, "italic 16px sans-serif", "valid font should round-trip"); cx.font = "bold 12px serif; background: green"; is(cx.font, "italic 16px sans-serif", "invalid font should be ignored"); cx.font = "bold 12px/3.0 serif"; is(cx.font, "bold 12px serif", "line-height should be dropped"); cx.font = "inherit"; is(cx.font, "bold 12px serif", "inherit should be ignored"); cx.font = "boold 18px sans-serif"; is(cx.font, "bold 12px serif", "syntax error should be ignored"); cx.font = "menu"; todo_is(cx.font, "menu", "system fonts should work"); function textmeas() { return cx.measureText("hello").width; } cx.font = "66px serif"; var w_at_66 = textmeas(); cx.font = "20px serif"; var w_at_20 = textmeas(); ok(w_at_66 > w_at_20, "text should be wider at 66px than at 20px"); canvas.style.fontSize = "33px"; cx.font = "2em serif"; is(cx.font, "2em serif", "serialization of em"); is(textmeas(), w_at_66, "em should be relative to canvas font size"); canvas.style.fontSize = "16px"; is(cx.font, "2em serif", "serialization of em"); is(textmeas(), w_at_66, "em should be relative to canvas font size at time of setting"); document.body.removeChild(canvas); is(cx.font, "2em serif", "serialization of em"); is(textmeas(), w_at_66, "em should be relative to canvas font size at time of setting"); canvas.style.fontSize = "33px"; cx.font = "2em serif"; is(cx.font, "2em serif", "serialization of em"); is(textmeas(), w_at_20, "em should be relative to 10px when canvas not in document"); document.body.appendChild(canvas); </script> </pre> </body> </html>