layout/reftests/canvas/dash-sanity.html@ac0c01689b40
layout/reftests/canvas/dash-sanity.html
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 <html>
2 <head>
3 <script type="text/javascript">
4 function assert(cond, msg) { if (!cond) { throw msg; } }
5 window.onload = function() {
6 try {
7 var ctx = document.getElementById("c1").getContext("2d");
9 assert(null === ctx.mozDash,
10 "Default dash is null (no dash)");
11 assert(0 == ctx.mozDashOffset,
12 "Default dashOffset is 0 (no dash)");
14 ctx.mozDash = [ 2 ];
15 assert(1 == ctx.mozDash.length && 2 == ctx.mozDash[0],
16 "dash = [ 2 ] works");
17 ctx.mozDash = null;
18 assert(null === ctx.mozDash,
19 "dash = null resets to null");
20 ctx.mozDash = [ 2 ];
21 ctx.mozDash = undefined;
22 assert(null === ctx.mozDash,
23 "dash = undefined resets to null");
24 ctx.mozDash = [ 2 ];
25 ctx.mozDash = [ ];
26 assert(null === ctx.mozDash,
27 "dash = [] resets to null");
29 ctx.mozDash = [ 2 ];
30 assert(0 == ctx.mozDashOffset, "dashOffset is 0");
31 ctx.mozDashOffset = 1;
32 assert(1 == ctx.mozDashOffset, "Setting dashOffset succeeded");
33 ctx.mozDash = null;
34 assert(0 == ctx.mozDashOffset, "Disabling dash resets dashOffset");
35 ctx.mozDash = [ 2 ];
36 assert(0 == ctx.mozDashOffset, "Previous dashOffset isn't remembered");
37 ctx.mozDash = null;
39 // NB: might want to add a |.dash = number| special case,
40 // don't test that it fails here. Might also want to add a
41 // |.dash = [0]| special case for resetting, so don't test
42 // that either.
43 var badVals = [ -1,
44 "string",
45 /* According to the WebIDL sequence-ifying
46 * (really they mean array-ifying here)
47 * algorithm, objects without .length
48 * properties convert to a 0-length arrays.
49 * This seems ... odd, since by the book we're
50 * forced to accept |ctx.dash = Function|,
51 * e.g., but there it is.
52 */
53 // { obj: true },
54 [ "array of string" ],
55 [ -1 ],
56 [ 0, 0, 0 ],
57 [ 2, "string" ],
58 ];
59 ctx.mozDash = [ 2 ];
60 for (var i = 0; i < badVals.length; ++i) {
61 var error = false;
62 try { ctx.mozDash = badVals[i]; }
63 catch(e) { error = true; }
64 assert(error && 1 == ctx.mozDash.length && 2 == ctx.mozDash[0],
65 "Expected |dash = "+ badVals[i] +"| to throw exception and not change .dash");
66 }
67 ctx.mozDash = null;
69 ctx.save();
70 ctx.mozDash = [ 2 ];
71 ctx.restore();
72 assert(null === ctx.mozDash,
73 "dash was saved then restored");
74 } catch (e) {
75 document.body.innerHTML = "FAIL: "+ e.toString();
76 return;
77 }
78 document.body.innerHTML = "Pass";
79 }
80 </script>
81 </head>
82 <body>
83 <div><canvas id="c1" width="300" height="300"></canvas></div>
84 </body>
85 </html>
