blob: 66460fed571a0a106eea515dca4c865e605fbf8c [file] [log] [blame]
<!DOCTYPE HTML>
<title>SVGNumber interface</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
test(function() {
// This test checks the SVGNumber API.
var svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg");
var num = svgElement.createSVGNumber();
// Check initial number value.
assert_equals(num.value, 0);
// Check assigning number.
num.value = 100;
assert_equals(num.value, 100);
num.value = -100;
assert_equals(num.value, -100);
num.value = 12345678;
assert_equals(num.value, 12345678);
num.value = -num.value;
assert_equals(num.value, -12345678);
// Check that numbers are static, caching value in a local variable and modifying it, should have no effect.
var numRef = num.value;
numRef = 1000;
assert_equals(numRef, 1000);
assert_equals(num.value, -12345678);
// Check assigning invalid number, number should be 0 afterwards.
num.value = 0;
assert_equals(num.value, 0);
assert_throws(new TypeError(), function() { num.value = num; });
assert_throws(new TypeError(), function() { num.value = 'aString'; });
assert_throws(new TypeError(), function() { num.value = svgElement; });
assert_throws(new TypeError(), function() { num.value = NaN; });
assert_throws(new TypeError(), function() { num.value = Infinity; });
assert_equals(num.value, 0);
num.value = null;
// Check that the number is now null.
assert_equals(num.value, 0);
});
</script>