1 files changed, 489 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-grid/subgrid/parent-repeat-auto-fit-002.html b/testing/web-platform/tests/css/css-grid/subgrid/parent-repeat-auto-fit-002.html
new file mode 100644
index 0000000000..b113f47a0b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-grid/subgrid/parent-repeat-auto-fit-002.html
@@ -0,0 +1,489 @@
+<!DOCTYPE HTML>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+  <meta charset="utf-8">
+  <title>CSS Grid Test: subgrid inside a parent with repeat(auto-fit) rows</title>
+  <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+  <link rel="help" href="https://drafts.csswg.org/css-grid-2/">
+  <link rel="match" href="parent-repeat-auto-fit-002-ref.html">
+  <style>
+html,body {
+  color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+#report {
+  white-space: pre-wrap;
+}
+
+.grid {
+  display: inline-grid;
+  height: 50px;
+  width: 50px;
+  grid-template-columns: repeat(auto-fit, 10px);
+  border: 1px solid;
+  vertical-align: top;
+}
+
+.subgrid {
+  display: grid;
+  grid: subgrid / subgrid;
+  grid-column: 1 / -1;
+  grid-row: 3 / span 4;
+  grid-auto-columns: 8px;
+  background: grey;
+}
+
+.fit-0a  { grid-template-rows: repeat(auto-fit, [y] 30px) [z] 1px [z] 1px [z] 1px [z] 1px [z] minmax(0, auto) }
+.fit-0b  { grid-template-rows: [x] repeat(auto-fit, [y] 30px) [z] 1px [z] 1px [z] 1px [z] minmax(0, auto) minmax(0, auto) }
+.fit-0c  { grid-template-rows: [x] 1px [x] repeat(auto-fit, [y] 10px) [z] 1px [z] 1px [z] }
+.fit-0d  { grid-template-rows: [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) [z] 1px [z] }
+.fit-0e  { grid-template-rows: [x] 2px [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) [z] }
+.fit-0f  { grid-template-rows: [x] 2px [x] 2px [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) }
+.fit-0g  { grid-template-rows: [x] 2px [x] 2px [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) [z] 1px [z] }
+.fit-0h  { grid-template-rows: [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) [z] 1px [z] }
+.fit-0i  { grid-template-rows: [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) [z] }
+.fit-0j  { grid-template-rows: [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) }
+.fit-0k  { grid-template-rows: repeat(auto-fit, [y] 10px) repeat(100, [z] 10px) }
+.fit-0l  { grid-template-rows: [x] repeat(auto-fit, [y] 10px) repeat(100, [z] 10px) }
+.fit-0m  { grid-template-rows: repeat(100, [x] 10px) repeat(auto-fit, [y] 10px) }
+
+.fit-1a  { grid-template-rows: repeat(auto-fit, [y] 10px) [z] 1px [z] 1px [z] 1px [z] }
+.fit-1b  { grid-template-rows: [x] repeat(auto-fit, [y] 10px) [z] 1px [z] 1px [z] }
+.fit-1c  { grid-template-rows: [x] 2px [x] repeat(auto-fit, [y] 10px) [z] 1px [z] }
+.fit-1d  { grid-template-rows: [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) [z] }
+.fit-1e  { grid-template-rows: [x] 2px [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) }
+
+.fit-2a  { grid-template-rows: repeat(auto-fit, [y] 10px) [z] 1px [z] 1px [z] }
+.fit-2b  { grid-template-rows: [x] repeat(auto-fit, [y] 10px) [z] 1px [z] minmax(0, auto) }
+.fit-2c  { grid-template-rows: [x] 2px [x] repeat(auto-fit, [y] 10px) [z] minmax(0, auto) }
+.fit-2d  { grid-template-rows: [x] 2px [x] 2px [x] repeat(auto-fit, [y] 10px) }
+
+.fit-3a  { grid-template-rows: repeat(auto-fit, [y] 10px) [z] 1px [z] minmax(0, auto) }
+.fit-3b  { grid-template-rows: [x] repeat(auto-fit, [y] 10px) [z] minmax(0, auto) }
+.fit-3c  { grid-template-rows: [x] 2px [x] repeat(auto-fit, [y] 10px) minmax(0, auto) }
+
+.fit-4a  { grid-template-rows: repeat(auto-fit, [y] 10px) [z] minmax(0, auto) }
+.fit-4b  { grid-template-rows: [x] repeat(auto-fit, [y] 10px) minmax(0, auto) }
+
+.fit-5   { grid-template-rows: repeat(auto-fit, [y] 10px) minmax(0, auto) }
+
+.subgrid > :nth-child(2n)   {  background: black; }
+.subgrid > :nth-child(2n+1) {  background: pink; }
+
+  </style>
+</head>
+<body>
+
+<div class="grid fit-0a"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0b"><div class="subgrid" style="grid-column-start:2">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0c"><div class="subgrid" style="grid-column-start:3">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0d"><div class="subgrid" style="grid-column-start:4">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0e"><div class="subgrid" style="grid-column-start:5">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0f"><div class="subgrid" style="grid-column-start:6">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0g"><div class="subgrid" style="grid-column-end:-2">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0h"><div class="subgrid" style="grid-column-end:-3">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0i"><div class="subgrid" style="grid-column-end:-4">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0j"><div class="subgrid" style="grid-column-end:-5">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0k"><div class="subgrid" style="grid-column-end:-6">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0l"><div class="subgrid" style="grid-column:2/-2">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-0m"><div class="subgrid" style="grid-column:3/-3">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-1a"><div class="subgrid" style="grid-column:2/-3">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-1b"><div class="subgrid" style="grid-column:3/-2">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-1c"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-1d"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-1e"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-2a"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-2b"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-2c"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-2d"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-3a"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-3b"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-3c"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-4a"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-4b"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div class="grid fit-5"><div class="subgrid">
+  <div style="grid-row:y 5"></div>
+  <div style="grid-row:y 4"></div>
+  <div style="grid-row:y 3"></div>
+  <div style="grid-row:y 2"></div>
+  <div style="grid-row:y 1"></div>
+  <div style="grid-row:y -1"></div>
+  <div style="grid-row:y -2"></div>
+  <div style="grid-row:y -3"></div>
+  <div style="grid-row:y -4"></div>
+  <div style="grid-row:y -5"></div>
+</div></div>
+
+<div id="report"></div>
+
+<script>
+  const expectedResults = [
+    "[y] 0px [z] 1px [z] 1px [z] 1px [z] 1px [z] 46px",
+    "[x y] 0px [z] 1px [z] 1px [z] 1px [z] 23.5px 23.5px",
+    "[x] 1px [x y] 0px [y] 10px [y] 10px [y] 10px [z] 1px [z] 1px [z]",
+    "[x] 2px [x] 2px [x y] 10px [y] 10px [y] 10px [y] 10px [z] 1px [z]",
+    "[x] 2px [x] 2px [x] 2px [x y] 10px [y] 10px [y] 10px [y] 0px [z]",
+    "[x] 2px [x] 2px [x] 2px [x] 2px [x y] 10px [y] 10px [y] 0px [y] 0px",
+    "[x] 2px [x] 2px [x] 2px [x] 2px [x y] 10px [y] 10px [y] 0px [y] 0px [z] 1px [z]",
+    "[x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x y] 0px [y] 0px [y] 0px [z] 1px [z]",
+    "[x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x y] 0px [y] 0px [y] 0px [z]",
+    "[x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x] 2px [x y] 0px [y] 0px [y] 0px",
+    "[y] 0px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px",
+    "[x y] 0px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px [z] 10px",
+    "[x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [x] 10px [y] 0px",
+    "[y] 0px [y] 0px [y] 10px [y] 10px [z] 1px [z] 1px [z] 1px [z]",
+    "[x y] 0px [y] 0px [y] 10px [y] 10px [z] 1px [z] 1px [z]",
+    "[x] 2px [x y] 0px [y] 10px [y] 10px [y] 10px [z] 1px [z]",
+    "[x] 2px [x] 2px [x y] 10px [y] 10px [y] 10px [y] 10px [z]",
+    "[x] 2px [x] 2px [x] 2px [x y] 10px [y] 10px [y] 10px [y] 0px",
+    "[y] 0px [y] 0px [y] 10px [y] 10px [z] 1px [z] 1px [z]",
+    "[x y] 0px [y] 0px [y] 10px [y] 10px [z] 1px [z] 29px",
+    "[x] 2px [x y] 0px [y] 10px [y] 10px [y] 10px [z] 18px",
+    "[x] 2px [x] 2px [x y] 10px [y] 10px [y] 10px [y] 10px",
+    "[y] 0px [y] 0px [y] 10px [y] 10px [z] 1px [z] 29px",
+    "[x y] 0px [y] 0px [y] 10px [y] 10px [y] 10px [z] 20px",
+    "[x] 2px [x y] 0px [y] 10px [y] 10px [y] 10px 18px",
+    "[y] 0px [y] 0px [y] 10px [y] 10px [y] 10px [z] 20px",
+    "[x y] 0px [y] 0px [y] 10px [y] 10px [y] 10px 20px",
+    "[y] 0px [y] 0px [y] 10px [y] 10px [y] 10px 20px",
+  ];
+  [...document.querySelectorAll('.grid')].forEach(function(grid, i) {
+    let actual = window.getComputedStyle(grid)['grid-template-rows'];
+    let expected = expectedResults[i];
+    if (actual != expected) {
+      let err = "\nUnexpected getComputedStyle value for grid " + i + " with className '" + grid.className + "':" +
+      " Actual: \"" + actual + "\", Expected: \"" + expected + "\"\n";
+      report.appendChild(document.createTextNode(err));
+    }
+  });
+</script>
+
+</body>
+</html>