1 files changed, 50 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-flexbox/flex-aspect-ratio-img-column-010.html b/testing/web-platform/tests/css/css-flexbox/flex-aspect-ratio-img-column-010.html
new file mode 100644
index 0000000000..70ebd378a4
--- /dev/null
+++ b/testing/web-platform/tests/css/css-flexbox/flex-aspect-ratio-img-column-010.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="author" title="Google LLC" href="http://www.google.com" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#line-sizing" />
+<title>css-flexbox: Tests that we use the aspect ratio to compute the main size when there is a definite cross size and a specified but indefinite flex-basis</title>
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
+
+<style>
+#reference-overlapped-red {
+    position: absolute;
+    background-color: red;
+    width: 100px;
+    height: 100px;
+    z-index: -1;
+}
+
+.flex {
+  display: flex;
+  flex-direction: column;
+  justify-content: flex-start;
+  align-items: flex-start;
+  float: left;
+}
+
+img {
+  flex: 0 0 0%;
+  height: 500px;
+  min-width: 0;
+  min-height: 0; /* Disable min-size: auto so we don't have to think about it. */
+  width: 40px;
+}
+</style>
+<script>
+// Force a relayout after the image loads to work around http://crbug.com/1042329
+window.onload = (event) => {
+  flex.style.width = "50px";
+  flex.offsetTop;
+  flex.style.width = "auto";
+  flex.offsetTop;
+  document.documentElement.classList.remove("reftest-wait")
+}
+</script>
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+<div id="reference-overlapped-red"></div>
+<div style="width:60px; height: 100px; background: green; float: left;"></div>
+<div class="flex" id=flex>
+  <img src="support/20x50-green.png">
+</div>