SVGAnimatedLengthList.html

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This WPT test may be referenced by the following Test IDs:
- /svg/types/scripted/SVGAnimatedLengthList.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<title>SVGAnimatedLengthList interface - utilizing the dx property of SVGTextElement</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

test(function() {

  // This test checks the SVGAnimatedLengthList API - utilizing the dx property of SVGTextElement.

  var textElement = document.createElementNS("http://www.w3.org/2000/svg", "text");

  textElement.setAttribute("dx", "50");

  // Check initial dx value.

  assert_true(textElement.dx instanceof SVGAnimatedLengthList);

  assert_true(textElement.dx.baseVal instanceof SVGLengthList);

  assert_equals(textElement.dx.baseVal.getItem(0).value, 50);

  // Check that length lists are dynamic, caching value in a local variable and modifying it, should take effect.

  var numRef = textElement.dx.baseVal;

  numRef.getItem(0).value = 100;

  assert_equals(numRef.getItem(0).value, 100);

  assert_equals(textElement.dx.baseVal.getItem(0).value, 100);

  // Check that assigning to baseVal has no effect, as no setter is defined.

  textElement.dx.baseVal = -1;

  assert_equals(textElement.dx.baseVal.getItem(0).value, 100);

  textElement.dx.baseVal = 'aString';

  assert_equals(textElement.dx.baseVal.getItem(0).value, 100);

  textElement.dx.baseVal = textElement;

  assert_equals(textElement.dx.baseVal.getItem(0).value, 100);

  // Check that the dx baseVal type has not been changed.

  assert_true(textElement.dx.baseVal instanceof SVGLengthList);

});

</script>