SVGAnimatedBoolean.html

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

<!DOCTYPE HTML>

<title>SVGAnimatedBoolean interface - utilizing the preserveAlpha property of SVGFEConvolveMatrixElement</title>

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

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

<script>

test(function() {

  // This test checks the SVGAnimatedBoolean API - utilizing the preserveAlpha property of SVGFEConvolveMatrixElement.

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

  // Check initial preserveAlpha value.

  assert_false(convElement.preserveAlpha.baseVal);

  // Set value to true.

  convElement.preserveAlpha.baseVal = true;

  assert_true(convElement.preserveAlpha.baseVal);

  // Caching baseVal in local variable.

  var baseVal = convElement.preserveAlpha.baseVal;

  assert_true(baseVal);

  // Modify local baseVal variable to false.

  baseVal = false;

  // Assure that convElement.preserveAlpha has not been changed, but the local baseVal variable.

  assert_false(baseVal);

  assert_true(convElement.preserveAlpha.baseVal);

  // Check assigning values of various types.

  // ECMA-262, 9.2, "ToBoolean"

  convElement.preserveAlpha.baseVal = convElement.preserveAlpha;

  assert_true(convElement.preserveAlpha.baseVal);

  convElement.preserveAlpha.baseVal = null;

  assert_false(convElement.preserveAlpha.baseVal);

  convElement.preserveAlpha.baseVal = 'aString';

  assert_true(convElement.preserveAlpha.baseVal);

  convElement.preserveAlpha.baseVal = false;

  assert_false(convElement.preserveAlpha.baseVal);

  convElement.preserveAlpha.baseVal = convElement;

  assert_true(convElement.preserveAlpha.baseVal);

});

</script>