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

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

  var clipPathElement = document.createElementNS("http://www.w3.org/2000/svg", "clipPath");
  clipPathElement.setAttribute("clipPathUnits", "userSpaceOnUse");

  // Check initial 'clipPathUnits' value.
  assert_true(clipPathElement.clipPathUnits instanceof SVGAnimatedEnumeration);
  assert_equals(typeof(clipPathElement.clipPathUnits.baseVal), "number");
  assert_equals(clipPathElement.clipPathUnits.baseVal, SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE);

  // Switch to 'objectBoundingBox'.
  clipPathElement.clipPathUnits.baseVal = SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX;
  assert_equals(clipPathElement.clipPathUnits.baseVal, SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
  assert_equals(clipPathElement.getAttribute('clipPathUnits'), "objectBoundingBox");

  // Try setting invalid values.
  assert_throws_js(TypeError, function() { clipPathElement.clipPathUnits.baseVal = 3; });
  assert_equals(clipPathElement.clipPathUnits.baseVal, SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
  assert_equals(clipPathElement.getAttribute('clipPathUnits'), "objectBoundingBox");

  assert_throws_js(TypeError, function() { clipPathElement.clipPathUnits.baseVal = -1; });
  assert_equals(clipPathElement.clipPathUnits.baseVal, SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
  assert_equals(clipPathElement.getAttribute('clipPathUnits'), "objectBoundingBox");

  assert_throws_js(TypeError, function() { clipPathElement.clipPathUnits.baseVal = 0; });
  assert_equals(clipPathElement.clipPathUnits.baseVal, SVGUnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
  assert_equals(clipPathElement.getAttribute('clipPathUnits'), "objectBoundingBox");

  // Switch to 'userSpaceOnUse'.
  clipPathElement.clipPathUnits.baseVal = SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE;
  assert_equals(clipPathElement.clipPathUnits.baseVal, SVGUnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE);
  assert_equals(clipPathElement.getAttribute('clipPathUnits'), "userSpaceOnUse");
});
</script>