<!DOCTYPE HTML>
<title>SVGAnimatedNumber interface - utilizing the surfaceScale property of SVGFESpecularLightingElement</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(function() {
// This test checks the SVGAnimatedNumber API - utilizing the surfaceScale property of SVGFESpecularLightingElement.
var feSpecularLightingElement = document.createElementNS("http://www.w3.org/2000/svg", "feSpecularLighting");
// Check initial surfaceScale value.
assert_true(feSpecularLightingElement.surfaceScale instanceof SVGAnimatedNumber);
assert_equals(typeof(feSpecularLightingElement.surfaceScale.baseVal), "number");
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 1);
// Check that integers are static, caching value in a local variable and modifying it, should have no effect.
var numRef = feSpecularLightingElement.surfaceScale.baseVal;
numRef = 100;
assert_equals(numRef, 100);
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 1);
// Check assigning various valid and invalid values.
feSpecularLightingElement.surfaceScale.baseVal = -1; // Negative values are allowed from SVG DOM, but should lead to an error when rendering (disable the filter)
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, -1);
feSpecularLightingElement.surfaceScale.baseVal = 300;
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 300);
// ECMA-262, 9.3, "ToNumber"
assert_throws_js(TypeError, function() { feSpecularLightingElement.surfaceScale.baseVal = 'aString'; });
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 300);
feSpecularLightingElement.surfaceScale.baseVal = 0;
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 0);
assert_throws_js(TypeError, function() { feSpecularLightingElement.surfaceScale.baseVal = NaN; });
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 0);
assert_throws_js(TypeError, function() { feSpecularLightingElement.surfaceScale.baseVal = Infinity; });
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 0);
assert_throws_js(TypeError, function() { feSpecularLightingElement.surfaceScale.baseVal = feSpecularLightingElement; });
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 0);
feSpecularLightingElement.surfaceScale.baseVal = 300;
assert_equals(feSpecularLightingElement.surfaceScale.baseVal, 300);
});
</script>
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