From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 03:47:29 +0200
Subject: Adding upstream version 115.8.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../flex-minimum-height-flex-items-023.html        | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 testing/web-platform/tests/css/css-flexbox/flex-minimum-height-flex-items-023.html

(limited to 'testing/web-platform/tests/css/css-flexbox/flex-minimum-height-flex-items-023.html')
diff --git a/testing/web-platform/tests/css/css-flexbox/flex-minimum-height-flex-items-023.html b/testing/web-platform/tests/css/css-flexbox/flex-minimum-height-flex-items-023.html
new file mode 100644
index 0000000000..576d9bf7d4
--- /dev/null
+++ b/testing/web-platform/tests/css/css-flexbox/flex-minimum-height-flex-items-023.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<title>Flex minimum height of image with intrinsic min-height specified</title>
+<link rel="author" title="dgrogan@chromium.org" href="mailto:dgrogan@chromium.org" />
+<link rel="help" href="https://drafts.csswg.org/css-flexbox/#min-size-auto" />
+<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content" />
+<link rel="match" href="../reference/ref-filled-green-100px-square-only.html" />
+<link rel="bookmark" href="https://crbug.com/1088223">
+<meta name="assert" content="Flex uses automatic minimum sizes when item specifies min-height:intrinsic, because that is treated as auto.">
+
+<p>Test passes if there is a filled green square.</p>
+
+<!--
+Here's the spec trail why the height of this item is 100px.
+
+1. The column flexbox has height:0, and the item has flex-shrink: 1. So
+   min-height will determine the item's flexed height.
+
+2. The min-content value of the min-height property is equivalent to the
+   automatic size, per https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content,
+   because it's in the item's block dimension. (Blink legacy flex disagrees here)
+
+3. Per https://drafts.csswg.org/css-flexbox/#min-size-auto, the used value of a
+   main axis automatic minimum size on a flex item that is not a scroll container
+   is a content-based minimum size.
+
+4. The content-based min size of this item is min(content size suggestion,
+   specified size suggestion). We ignore transferred size suggestion because
+   this item has a specified size.
+
+5. content size suggestion = 50px because the stretched width of 100px is sent
+   through the 2:1 aspect ratio to determine the image's min-content size in the
+   block axis.
+
+   5a. This flex container qualifies for 9.8.3:
+
+     If a single-line flex container has a definite cross size, the automatic
+     preferred outer cross size of any stretched flex items is the flex
+     container's inner cross size (clamped to the flex item's min and max cross
+     size) and is considered definite.
+
+     So the preferred width of the image is 100px.
+   5b. The float specified by the min-content calculation from css-sizing 5.1 is
+     <img src="support/300x150-green.png" style="width: 100px; float: left;" />
+     This element gets height 50px.
+
+6. specified size suggestion = 100px because that's what's specified.
+
+7. So content-based min size = min(50, 100) = 50px. That becomes its flexed
+   height (see #1).
+
+8. Then, the item stretches its width to 100px. The item has an aspect ratio,
+   so does the new width change the height? Not according to
+   https://drafts.csswg.org/css-flexbox/#algo-stretch, which says "Note that
+   this step does not affect the main size of the flex item, even if it has an
+   intrinsic aspect ratio." The height remains 50px.
+-->
+
+<div style="height: 50px; width: 100px; background: green;"></div>
+<div style="display: flex; flex-direction: column; width:100px; height: 0px;">
+  <img src="support/300x150-green.png" style="min-height: min-content; height: 100px;" />
+</div>
-- 
cgit v1.2.3

