[css-flexbox] Test for definite flex basis of fully inflexible item

davidsgrogan · chromium-wpt-export-bot · commit 78490291ac0b · 2019-08-05T17:36:45.000-04:00
Safari and blink legacy fail this; EdgeHTML, Firefox, and blink NG pass it, but I think blink NG passes it by accident for now. Change-Id: I38acc8ba98d3897aa77305a36c2ae6f2affec640 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1713143 Commit-Queue: David Grogan <dgrogan@chromium.org> Reviewed-by: Christian Biesinger <cbiesinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#684111}
diff --git a/css/css-flexbox/percentage-heights-006.html b/css/css-flexbox/percentage-heights-006.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<title>Definite cross sizes</title>
+<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#definite-sizes">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
+<meta name="flags" content="" />
+<meta name="assert" content="In a column flexbox, the height of a fully inflexible item with fixed flex-basis is definite, and percent children resolve against the flex basis, not the specified height." />
+
+<style>
+x-flexbox {
+  display: flex;
+  flex-direction: column;
+}
+
+x-item {
+  height: 0px;
+  flex: 0 0 100px;
+}
+
+x-item>div {
+  width: 100px;
+  height: 100%;
+  background: green;
+}
+
+#reference-overlapped-red {
+  position: absolute;
+  background-color: red;
+  width: 100px;
+  height: 100px;
+  z-index: -1;
+}
+</style>
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div id="reference-overlapped-red"></div>
+
+<x-flexbox>
+  <x-item>
+    <div></div>
+  </x-item>
+</x-flexbox>
