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chromium/third_party/blink/web_tests/external/wpt/svg/types/scripted/SVGAnimatedEnumeration-SVGFEColorMatrixElement.html 

<!DOCTYPE HTML>
<title>Use of SVGAnimatedEnumeration within SVGFEColorMatrixElement</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(function() {
  // This test checks the use of SVGAnimatedEnumeration within SVGFEColorMatrixElement.

  var feColorMatrixElement = document.createElementNS("http://www.w3.org/2000/svg", "feColorMatrix");
  feColorMatrixElement.setAttribute("type", "matrix");

  // Check initial 'type' value.
  assert_true(feColorMatrixElement.type instanceof SVGAnimatedEnumeration);
  assert_equals(typeof(feColorMatrixElement.type.baseVal), "number");
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_MATRIX);

  // Switch to 'saturate'.
  feColorMatrixElement.type.baseVal = SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_SATURATE;
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_SATURATE);
  assert_equals(feColorMatrixElement.getAttribute('type'), "saturate");

  // Switch to 'hueRotate'.
  feColorMatrixElement.type.baseVal = SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_HUEROTATE;
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_HUEROTATE);
  assert_equals(feColorMatrixElement.getAttribute('type'), "hueRotate");

  // Switch to 'luminanceToAlpha'.
  feColorMatrixElement.type.baseVal = SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA;
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA);
  assert_equals(feColorMatrixElement.getAttribute('type'), "luminanceToAlpha");

  // Try setting invalid values.
  assert_throws_js(TypeError, function() { feColorMatrixElement.type.baseVal = 5; });
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA);
  assert_equals(feColorMatrixElement.getAttribute('type'), "luminanceToAlpha");

  assert_throws_js(TypeError, function() { feColorMatrixElement.type.baseVal = -1; });
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA);
  assert_equals(feColorMatrixElement.getAttribute('type'), "luminanceToAlpha");

  assert_throws_js(TypeError, function() { feColorMatrixElement.type.baseVal = 0; });
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA);
  assert_equals(feColorMatrixElement.getAttribute('type'), "luminanceToAlpha");

  // Switch to 'matrix'.
  feColorMatrixElement.type.baseVal = SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_MATRIX;
  assert_equals(feColorMatrixElement.type.baseVal, SVGFEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_MATRIX);
  assert_equals(feColorMatrixElement.getAttribute('type'), "matrix");
});
</script>