Bug 1560856 [wpt PR 17350] - [LayoutNG] Fix for OOF position in simplified layout, a=testonly

Automatic update from web-platform-tests [LayoutNG] Fix for OOF position in simplified layout Bug: 970166 Change-Id: Ib85e5b819e5870c1867e6c753d9a250ea4e4a548 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1660205 Commit-Queue: Aleks Totic <atotic@chromium.org> Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org> Cr-Commit-Position: refs/heads/master@{#669842} -- wpt-commits: eb662aa07a1e2394169ca26fa6f1376a076c7d55 wpt-pr: 17350
2019-07-19 12:24:14 +00:00 · 2019-07-19 12:24:14 +00:00 · ecb7117cfd
--- a/testing/web-platform/tests/css/css-position/position-absolute-chrome-bug-002.html
+++ b/testing/web-platform/tests/css/css-position/position-absolute-chrome-bug-002.html
@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<link rel="author" href="mailto:atotic@google.com">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://crbug.com/970166">
+<meta name="assert" content="simplified layout calculates correct abspos position with floats">
+<style>
+
+#container {
+  position: relative;
+  background: gray;
+}
+#container::after {
+  content: '';
+  display: table;
+  clear:both;
+}
+#target {
+  position: absolute;
+  right: 0;
+  background: green;
+}
+</style>
+<div id="container">
+  <div style="float:left">floatleft</div>
+  <div id="target">
+    <div>text</div>
+    <div id="toggle">toggle</div>
+  </div>
+</div>
+<script>
+test(() => {
+  document.body.offsetTop;
+  let el = document.querySelector("#toggle");
+  el.style.display = "none";
+  document.body.offsetTop;
+  assert_equals(document.querySelector("#target").offsetTop, 0);
+}, '#target position is recalculated correctly.');
+</script>