1 files changed, 73 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-grid/alignment/grid-row-axis-self-baseline-synthesized-001.html b/testing/web-platform/tests/css/css-grid/alignment/grid-row-axis-self-baseline-synthesized-001.html
new file mode 100644
index 0000000000..c9e630cbac
--- /dev/null
+++ b/testing/web-platform/tests/css/css-grid/alignment/grid-row-axis-self-baseline-synthesized-001.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Grid Layout Test: Self-Baseline alignment along row-axis on fixed sized grids and synthesized baselines</title>
+<link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#alignment">
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#row-align">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-justify-items">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#baseline-alignment">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#valdef-justify-self-baseline">
+<link rel="help" href="https://drafts.csswg.org/css-align/#synthesize-baseline">
+<link rel="stylesheet" href="/css/support/grid.css">
+<link rel="stylesheet" href="../../support/alignment.css">
+<meta name="assert" content="Grid items orthogonal to the Baseline Alignment Context should use their border-box 'under' edge as synthesized baseline.">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.container { position: relative; }
+.grid {
+  position: relative;
+  text-orientation: sideways;
+  grid: 100px 200px / 200px 100px;
+  font-family: Ahem;
+}
+.bigFont  { font-size: 50px; }
+.height25 { height: 25px; }
+.width25 { width: 25px; }
+.width200 { width: 200px; }
+.width300 { width: 300px; }
+
+.paddingLeft { padding-left: 25px; }
+.paddingRight { padding-right: 25px; }
+</style>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+<script type="text/javascript">
+  setup({ explicit_done: true });
+</script>
+<body onload="document.fonts.ready.then(() => { checkLayout('.grid'); })">
+
+<pre>Horizontal grid and verticalRL items do not share a baseline context</pre>
+
+<div class="grid width300 justifyItemsBaseline">
+  <div class="firstRowFirstColumn"                                   data-offset-x="0" data-offset-y="0"   data-expected-width="200" data-expected-height="100">ÉÉ É ÉÉÉ É ÉÉ É</div>
+  <div class="secondRowFirstColumn bigFont paddingRight verticalRL"  data-offset-x="75"  data-offset-y="100" data-expected-width="125" data-expected-height="200">É É ÉÉ</div>
+  <div class="autoRowSpanning2AutoColumn width25"></div>
+</div>
+
+<pre>Horizontal grid and verticalLR item</pre>
+
+<div class="grid width300 justifyItemsBaseline">
+  <div class="firstRowFirstColumn"                                  data-offset-x="35" data-offset-y="0"   data-expected-width="200" data-expected-height="100">ÉÉ É ÉÉÉ É ÉÉ É</div>
+  <div class="secondRowFirstColumn bigFont paddingLeft verticalLR"  data-offset-x="0"  data-offset-y="100" data-expected-width="125" data-expected-height="200">É É ÉÉ</div>
+  <div class="autoRowSpanning2AutoColumn width25"></div>
+</div>
+
+<pre>VerticalLR grid and Horizontal item</pre>
+
+<div class="grid justifyItemsBaseline verticalLR">
+  <div class="firstRowFirstColumn"                        data-offset-x="0"   data-offset-y="0"   data-expected-width="100" data-expected-height="200">ÉÉ É ÉÉÉ É ÉÉ É</div>
+  <div class="secondRowFirstColumn bigFont horizontalTB"  data-offset-x="100" data-offset-y="160" data-expected-width="200" data-expected-height="100">É É ÉÉ</div>
+  <div class="autoRowSpanning2AutoColumn height25"></div>
+</div>
+
+<pre>VerticalRL grid and Horizontal item</pre>
+
+<div class="grid justifyItemsBaseline verticalRL">
+  <div class="firstRowFirstColumn"                        data-offset-x="200" data-offset-y="0"   data-expected-width="100" data-expected-height="200">ÉÉ É ÉÉÉ É ÉÉ É</div>
+  <div class="secondRowFirstColumn bigFont horizontalTB"  data-offset-x="0"   data-offset-y="160" data-expected-width="200" data-expected-height="100">É É ÉÉ</div>
+  <div class="autoRowSpanning2AutoColumn height25"></div>
+</div>
+
+
+</body>