diff options
Diffstat (limited to 'dom/canvas/test/test_canvas_font_setter.html')
| -rw-r--r-- | dom/canvas/test/test_canvas_font_setter.html | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/dom/canvas/test/test_canvas_font_setter.html b/dom/canvas/test/test_canvas_font_setter.html new file mode 100644 index 0000000000..16dafa370d --- /dev/null +++ b/dom/canvas/test/test_canvas_font_setter.html @@ -0,0 +1,70 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id= +--> +<head> + <title>Test for Bug </title> + <script 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"); + +// FIXME(emilio): This disagrees with the WPT test: 2dcontext/text-styles/2d.text.font.parse.system.html +cx.font = "menu"; +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, "66px serif", "font size set using em units serializes to px"); +is(textmeas(), w_at_66, "em should be relative to canvas font size"); +canvas.style.fontSize = "16px"; +is(cx.font, "66px serif", "font size set using em units serializes to px"); +is(textmeas(), w_at_66, + "em should be relative to canvas font size at time of setting"); +document.body.removeChild(canvas); +is(cx.font, "66px serif", "font size set using em units serializes to px"); +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, "20px serif", "font size set using em units serializes to px"); +is(textmeas(), w_at_20, + "em should be relative to 10px when canvas not in document"); +document.body.appendChild(canvas); + +</script> +</pre> +</body> +</html> |