Make sure that width or height don't animate to a negative value. Fixes #3881.
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@ -432,7 +432,7 @@ jQuery.extend( jQuery.fx, {
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_default: function(fx){
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if ( fx.elem.style && fx.elem.style[ fx.prop ] != null ) {
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fx.elem.style[ fx.prop ] = fx.now + fx.unit;
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fx.elem.style[ fx.prop ] = (fx.prop === "width" || fx.prop === "height" ? Math.max(0, fx.now) : fx.now) + fx.unit;
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} else {
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fx.elem[ fx.prop ] = fx.now;
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}
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@ -52,6 +52,15 @@ test("animate(Hash, Object, Function)", function() {
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});
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});
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test("animate negative height", function() {
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expect(1);
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stop();
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jQuery("#foo").animate({ height: -100 }, 100, function() {
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equals( this.offsetHeight, 0, "Verify height." );
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start();
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});
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});
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/* // This test ends up being flaky depending upon the CPU load
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test("animate option (queue === false)", function () {
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expect(1);
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