1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/reftests/canvas/dash-sanity.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,85 @@
1.4 +<html>
1.5 +<head>
1.6 + <script type="text/javascript">
1.7 +function assert(cond, msg) { if (!cond) { throw msg; } }
1.8 +window.onload = function() {
1.9 + try {
1.10 + var ctx = document.getElementById("c1").getContext("2d");
1.11 +
1.12 + assert(null === ctx.mozDash,
1.13 + "Default dash is null (no dash)");
1.14 + assert(0 == ctx.mozDashOffset,
1.15 + "Default dashOffset is 0 (no dash)");
1.16 +
1.17 + ctx.mozDash = [ 2 ];
1.18 + assert(1 == ctx.mozDash.length && 2 == ctx.mozDash[0],
1.19 + "dash = [ 2 ] works");
1.20 + ctx.mozDash = null;
1.21 + assert(null === ctx.mozDash,
1.22 + "dash = null resets to null");
1.23 + ctx.mozDash = [ 2 ];
1.24 + ctx.mozDash = undefined;
1.25 + assert(null === ctx.mozDash,
1.26 + "dash = undefined resets to null");
1.27 + ctx.mozDash = [ 2 ];
1.28 + ctx.mozDash = [ ];
1.29 + assert(null === ctx.mozDash,
1.30 + "dash = [] resets to null");
1.31 +
1.32 + ctx.mozDash = [ 2 ];
1.33 + assert(0 == ctx.mozDashOffset, "dashOffset is 0");
1.34 + ctx.mozDashOffset = 1;
1.35 + assert(1 == ctx.mozDashOffset, "Setting dashOffset succeeded");
1.36 + ctx.mozDash = null;
1.37 + assert(0 == ctx.mozDashOffset, "Disabling dash resets dashOffset");
1.38 + ctx.mozDash = [ 2 ];
1.39 + assert(0 == ctx.mozDashOffset, "Previous dashOffset isn't remembered");
1.40 + ctx.mozDash = null;
1.41 +
1.42 + // NB: might want to add a |.dash = number| special case,
1.43 + // don't test that it fails here. Might also want to add a
1.44 + // |.dash = [0]| special case for resetting, so don't test
1.45 + // that either.
1.46 + var badVals = [ -1,
1.47 + "string",
1.48 + /* According to the WebIDL sequence-ifying
1.49 + * (really they mean array-ifying here)
1.50 + * algorithm, objects without .length
1.51 + * properties convert to a 0-length arrays.
1.52 + * This seems ... odd, since by the book we're
1.53 + * forced to accept |ctx.dash = Function|,
1.54 + * e.g., but there it is.
1.55 + */
1.56 + // { obj: true },
1.57 + [ "array of string" ],
1.58 + [ -1 ],
1.59 + [ 0, 0, 0 ],
1.60 + [ 2, "string" ],
1.61 + ];
1.62 + ctx.mozDash = [ 2 ];
1.63 + for (var i = 0; i < badVals.length; ++i) {
1.64 + var error = false;
1.65 + try { ctx.mozDash = badVals[i]; }
1.66 + catch(e) { error = true; }
1.67 + assert(error && 1 == ctx.mozDash.length && 2 == ctx.mozDash[0],
1.68 + "Expected |dash = "+ badVals[i] +"| to throw exception and not change .dash");
1.69 + }
1.70 + ctx.mozDash = null;
1.71 +
1.72 + ctx.save();
1.73 + ctx.mozDash = [ 2 ];
1.74 + ctx.restore();
1.75 + assert(null === ctx.mozDash,
1.76 + "dash was saved then restored");
1.77 + } catch (e) {
1.78 + document.body.innerHTML = "FAIL: "+ e.toString();
1.79 + return;
1.80 + }
1.81 + document.body.innerHTML = "Pass";
1.82 +}
1.83 + </script>
1.84 +</head>
1.85 +<body>
1.86 + <div><canvas id="c1" width="300" height="300"></canvas></div>
1.87 +</body>
1.88 +</html>
