<!DOCTYPE html>
<title>elementFromPoint(...) on &lt;ellipse>s with continuous strokes</title>
<link rel="help" href="https://svgwg.org/svg2-draft/interact.html#hit-testing">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#ell1:hover,
#ell2:hover,
#ell3:hover {
    stroke: #9f9;
}
</style>
<svg id="svg" width="450" height="300">
  <rect id="border" x="0.5" y="0.5" width="449" height="299" stroke="#000" stroke-width="1" fill="none"/>

  <ellipse id="ell1" cx="130" cy="30" rx="100" ry="15" stroke="#ccf" fill="none" stroke-width="20"/>
  <ellipse pointer-events="none" cx="130" cy="30" rx="110" ry="25" stroke="gray" fill="none"/>
  <ellipse pointer-events="none" cx="130" cy="30" rx="90" ry="5" stroke="gray" fill="none"/>

  <ellipse id="ell2" cx="130" cy="180" rx="100" ry="100" stroke="#ccf" fill="none" stroke-width="30"/>
  <ellipse pointer-events="none" cx="130" cy="180" rx="115" ry="115" stroke="gray" fill="none"/>
  <ellipse pointer-events="none" cx="130" cy="180" rx="85" ry="85" stroke="gray" fill="none"/>

  <ellipse id="ell3" cx="340" cy="155" rx="15" ry="100" stroke="#ccf" fill="none" stroke-width="20" transform="rotate(30 340 155)"/>
  <ellipse pointer-events="none" cx="340" cy="155" rx="25" ry="110" stroke="gray" fill="none" transform="rotate(30 340 155)"/>
  <ellipse pointer-events="none" cx="340" cy="155" rx="5" ry="90" stroke="gray" fill="none" transform="rotate(30 340 155)"/>
</svg>
<script>
// Points are relative to the client rect of the <svg> root.
const tests = [
  { x: 27, y: 46, expectedElemId: "svg" },
  { x: 98, y: 33, expectedElemId: "svg" },
  { x: 202, y: 53, expectedElemId: "svg" },
  { x: 98, y: 142, expectedElemId: "svg" },
  { x: 130, y: 180, expectedElemId: "svg" },
  { x: 91, y: 247, expectedElemId: "svg" },
  { x: 27, y: 240, expectedElemId: "svg" },
  { x: 336, y: 166, expectedElemId: "svg" },
  { x: 337, y: 214, expectedElemId: "svg" },

  { x: 31, y: 18, expectedElemId: "ell1" },
  { x: 209, y: 31, expectedElemId: "ell1" },
  { x: 132, y: 47, expectedElemId: "ell1" },
  { x: 229, y: 43, expectedElemId: "ell1" },

  { x: 245, y: 180, expectedElemId: "ell2" },
  { x: 45, y: 180, expectedElemId: "ell2" },
  { x: 130, y: 95, expectedElemId: "ell2" },
  { x: 130, y: 295, expectedElemId: "ell2" },
  { x: 212, y: 255, expectedElemId: "ell2" },

  { x: 280, y: 235, expectedElemId: "ell3" },
  { x: 301, y: 247, expectedElemId: "ell3" },
  { x: 378, y: 88, expectedElemId: "ell3" },
  { x: 335, y: 122, expectedElemId: "ell3" },
  { x: 333, y: 190, expectedElemId: "ell3" },
  { x: 377, y: 66, expectedElemId: "ell3" }
];

setup(() => {
  const svg = document.getElementById("svg");
  const svgBounds = svg.getBoundingClientRect();
  window.svgOrigin = {
    x: svgBounds.left << 0,
    y: svgBounds.top << 0,
  };
});

tests.forEach(testcase => {
  test(t => {
    const expectedElem = document.getElementById(testcase.expectedElemId);
    const hitElem = document.elementFromPoint(svgOrigin.x + testcase.x, svgOrigin.y + testcase.y);
    assert_equals(hitElem, expectedElem);
  }, `${document.title}, element at (${testcase.x}, ${testcase.y})`);
});
</script>
