1 files changed, 49 insertions, 0 deletions
diff --git a/testing/web-platform/tests/intersection-observer/v2/position-relative.html b/testing/web-platform/tests/intersection-observer/v2/position-relative.html
new file mode 100644
index 0000000000..4cdc429570
--- /dev/null
+++ b/testing/web-platform/tests/intersection-observer/v2/position-relative.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<meta name="viewport" content="width=device-width,initial-scale=1">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/intersection-observer-test-utils.js"></script>
+
+<style>
+body, html {
+  margin: 0;
+}
+pre, #log {
+  position: absolute;
+  top: 0;
+  left: 200px;
+}
+.relpos {
+  position: relative;
+}
+</style>
+
+<div id="target" class="relpos">
+  <div class="relpos">
+    <img border="0" width="100" height="100" src=""/>
+  </div>
+</div>
+
+<script>
+var delay = 100;
+var entries = [];
+var target;
+
+runTestCycle(function() {
+  target = document.getElementById("target");
+  assert_true(!!target, "target exists");
+  var observer = new IntersectionObserver(function(changes) {
+    entries = entries.concat(changes)
+  }, {trackVisibility: true, delay: delay});
+  observer.observe(target);
+  entries = entries.concat(observer.takeRecords());
+  assert_equals(entries.length, 0, "No initial notifications.");
+  runTestCycle(step0, "First rAF.", delay);
+}, "IntersectionObserverV2 observing a position:relative div containing a position:relative child");
+
+function step0() {
+  assert_equals(entries.length, 1, "First notification.");
+  assert_true(entries[0].isVisible, "Target is visible.");
+}
+</script>
+