wpt / svg / struct / SVGSVGElement-currentTranslate-SameObject.html

Status: FAIL | Duration: 48ms | Subtests: 1/4 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (1/4)

Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)

SubtestStatusMessage
currentTranslate returns the same object on consecutive reads ([SameObject])PASS
currentTranslate identity is stable across value changesFAILcannot convert 'null' or 'undefined' to object
mutations through currentTranslate are observable on re-readFAILcannot convert 'null' or 'undefined' to object
currentTranslate is readonly; assignment does not change the valueFAILcannot convert 'null' or 'undefined' to object

/svg/struct/SVGSVGElement-currentTranslate-SameObject.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>SVGSVGElement.currentTranslate is [SameObject]</title>
<link rel="help" href="https://w3c.github.io/svgwg/svg2-draft/struct.html#__svg__SVGSVGElement__currentTranslate">
<link rel="help" href="https://webidl.spec.whatwg.org/#SameObject">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<svg id="svg" xmlns="http://www.w3.org/2000/svg" width="100" height="100"></svg>
<script>
const svg = document.getElementById("svg");

test(() => {
  assert_equals(svg.currentTranslate, svg.currentTranslate);
}, "currentTranslate returns the same object on consecutive reads ([SameObject])");

test(() => {
  const p = svg.currentTranslate;
  p.x = 10;
  assert_equals(svg.currentTranslate, p, "same object after mutating x");
}, "currentTranslate identity is stable across value changes");

test(() => {
  svg.currentTranslate.x = 42;
  assert_equals(svg.currentTranslate.x, 42);
}, "mutations through currentTranslate are observable on re-read");

test(() => {
  svg.currentTranslate.x = 7;
  svg.currentTranslate.y = 9;
  const replacement = svg.createSVGPoint();
  replacement.x = 100;
  replacement.y = 200;
  // Assignment to a readonly attribute is ignored (silently in non-strict mode).
  // Asserted on the value, not object identity, so this isolates readonly from
  // [SameObject]: an engine that fails identity still passes this if it honors readonly.
  try { svg.currentTranslate = replacement; } catch (e) {}
  assert_equals(svg.currentTranslate.x, 7, "x value unchanged");
  assert_equals(svg.currentTranslate.y, 9, "y value unchanged");
}, "currentTranslate is readonly; assignment does not change the value");
</script>