зеркало из https://github.com/mozilla/gecko-dev.git
86 строки
3.1 KiB
HTML
86 строки
3.1 KiB
HTML
<html>
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<head>
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<script type="text/javascript">
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function assert(cond, msg) { if (!cond) { throw msg; } }
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window.onload = function() {
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try {
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var ctx = document.getElementById("c1").getContext("2d");
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assert(null === ctx.mozDash,
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"Default dash is null (no dash)");
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assert(0 == ctx.mozDashOffset,
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"Default dashOffset is 0 (no dash)");
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ctx.mozDash = [ 2 ];
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assert(1 == ctx.mozDash.length && 2 == ctx.mozDash[0],
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"dash = [ 2 ] works");
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ctx.mozDash = null;
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assert(null === ctx.mozDash,
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"dash = null resets to null");
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ctx.mozDash = [ 2 ];
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ctx.mozDash = undefined;
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assert(null === ctx.mozDash,
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"dash = undefined resets to null");
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ctx.mozDash = [ 2 ];
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ctx.mozDash = [ ];
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assert(null === ctx.mozDash,
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"dash = [] resets to null");
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ctx.mozDash = [ 2 ];
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assert(0 == ctx.mozDashOffset, "dashOffset is 0");
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ctx.mozDashOffset = 1;
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assert(1 == ctx.mozDashOffset, "Setting dashOffset succeeded");
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ctx.mozDash = null;
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assert(0 == ctx.mozDashOffset, "Disabling dash resets dashOffset");
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ctx.mozDash = [ 2 ];
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assert(0 == ctx.mozDashOffset, "Previous dashOffset isn't remembered");
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ctx.mozDash = null;
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// NB: might want to add a |.dash = number| special case,
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// don't test that it fails here. Might also want to add a
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// |.dash = [0]| special case for resetting, so don't test
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// that either.
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var badVals = [ -1,
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"string",
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/* According to the WebIDL sequence-ifying
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* (really they mean array-ifying here)
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* algorithm, objects without .length
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* properties convert to a 0-length arrays.
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* This seems ... odd, since by the book we're
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* forced to accept |ctx.dash = Function|,
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* e.g., but there it is.
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*/
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// { obj: true },
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[ "array of string" ],
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[ -1 ],
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[ 0, 0, 0 ],
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[ 2, "string" ],
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];
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ctx.mozDash = [ 2 ];
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for (var i = 0; i < badVals.length; ++i) {
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var error = false;
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try { ctx.mozDash = badVals[i]; }
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catch(e) { error = true; }
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assert(error && 1 == ctx.mozDash.length && 2 == ctx.mozDash[0],
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"Expected |dash = "+ badVals[i] +"| to throw exception and not change .dash");
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}
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ctx.mozDash = null;
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ctx.save();
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ctx.mozDash = [ 2 ];
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ctx.restore();
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assert(null === ctx.mozDash,
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"dash was saved then restored");
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} catch (e) {
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document.body.innerHTML = "FAIL: "+ e.toString();
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return;
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}
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document.body.innerHTML = "Pass";
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}
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</script>
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</head>
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<body>
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<div><canvas id="c1" width="300" height="300"></canvas></div>
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</body>
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</html>
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