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

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

  var feDisplacementMapElement = document.createElementNS("http://www.w3.org/2000/svg", "feDisplacementMap");
  feDisplacementMapElement.setAttribute("xChannelSelector", "R");
  feDisplacementMapElement.setAttribute("yChannelSelector", "R");

  // xChannelSelector
  // Check initial 'xChannelSelector' value.
  assert_true(feDisplacementMapElement.xChannelSelector instanceof SVGAnimatedEnumeration);
  assert_equals(typeof(feDisplacementMapElement.xChannelSelector.baseVal), "number");
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_R);

  // Switch to 'G'.
  feDisplacementMapElement.xChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_G;
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_G);
  assert_equals(feDisplacementMapElement.getAttribute('xChannelSelector'), "G");

  // Switch to 'B'.
  feDisplacementMapElement.xChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_B;
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_B);
  assert_equals(feDisplacementMapElement.getAttribute('xChannelSelector'), "B");

  // Switch to 'A'.
  feDisplacementMapElement.xChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_A;
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('xChannelSelector'), "A");

  // Try setting invalid values.
  assert_throws_js(TypeError, function() { feDisplacementMapElement.xChannelSelector.baseVal = 5; });
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('xChannelSelector'), "A");

  assert_throws_js(TypeError, function() { feDisplacementMapElement.xChannelSelector.baseVal = -1; });
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('xChannelSelector'), "A");

  assert_throws_js(TypeError, function() { feDisplacementMapElement.xChannelSelector.baseVal = 0; });
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('xChannelSelector'), "A");

  // Switch to 'R'.
  feDisplacementMapElement.xChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_R;
  assert_equals(feDisplacementMapElement.xChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_R);
  assert_equals(feDisplacementMapElement.getAttribute('xChannelSelector'), "R");

  // yChannelSelector
  // Check initial 'yChannelSelector' value.
  assert_true(feDisplacementMapElement.yChannelSelector instanceof SVGAnimatedEnumeration);
  assert_equals(typeof(feDisplacementMapElement.yChannelSelector.baseVal), "number");
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_R);

  // Switch to 'G'.
  feDisplacementMapElement.yChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_G;
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_G);
  assert_equals(feDisplacementMapElement.getAttribute('yChannelSelector'), "G");

  // Switch to 'B'.
  feDisplacementMapElement.yChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_B;
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_B);
  assert_equals(feDisplacementMapElement.getAttribute('yChannelSelector'), "B");

  // Switch to 'A'.
  feDisplacementMapElement.yChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_A;
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('yChannelSelector'), "A");

  // Try setting invalid values.
  assert_throws_js(TypeError, function() { feDisplacementMapElement.yChannelSelector.baseVal = 5; });
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('yChannelSelector'), "A");

  assert_throws_js(TypeError, function() { feDisplacementMapElement.yChannelSelector.baseVal = -1; });
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('yChannelSelector'), "A");

  assert_throws_js(TypeError, function() { feDisplacementMapElement.yChannelSelector.baseVal = 0; });
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_A);
  assert_equals(feDisplacementMapElement.getAttribute('yChannelSelector'), "A");

  // Switch to 'R'.
  feDisplacementMapElement.yChannelSelector.baseVal = SVGFEDisplacementMapElement.SVG_CHANNEL_R;
  assert_equals(feDisplacementMapElement.yChannelSelector.baseVal, SVGFEDisplacementMapElement.SVG_CHANNEL_R);
  assert_equals(feDisplacementMapElement.getAttribute('yChannelSelector'), "R");
});
</script>