From 21f732681e159d14e24b0a81f1dbcd578130bbca Mon Sep 17 00:00:00 2001
From: Oriol Brufau <obrufau@igalia.com>
Date: Mon, 21 Oct 2024 17:07:48 +0000
Subject: [PATCH] Prevent `stretch` from producing a negative size

Signed-off-by: Oriol Brufau <obrufau@igalia.com>
---
 css/css-sizing/keyword-sizes-on-floated-element.html | 6 ++++++
 css/css-sizing/keyword-sizes-on-inline-block.html    | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/css/css-sizing/keyword-sizes-on-floated-element.html b/css/css-sizing/keyword-sizes-on-floated-element.html
index c8ee85ecbca489..e3da8bee7eb7b6 100644
--- a/css/css-sizing/keyword-sizes-on-floated-element.html
+++ b/css/css-sizing/keyword-sizes-on-floated-element.html
@@ -119,6 +119,12 @@
   <div class="test max-height stretch" data-expected-height="90">XXXXX XXXXX</div>
 </div>
 
+<!-- Stretch sizes can't result in a negative content size -->
+<div class="wrapper" style="width: 0px; height: 0px">
+  <div class="test width min-width max-width stretch" data-expected-width="10"></div>
+  <div class="test height min-height max-height stretch" data-expected-height="10"></div>
+</div>
+
 <!-- Indefinite stretch -->
 <div style="width: 100px; max-height: 100px">
   <div class="test height stretch indefinite" data-expected-height="30">X X</div>
diff --git a/css/css-sizing/keyword-sizes-on-inline-block.html b/css/css-sizing/keyword-sizes-on-inline-block.html
index 14ea68fa3a8602..519081349c61e6 100644
--- a/css/css-sizing/keyword-sizes-on-inline-block.html
+++ b/css/css-sizing/keyword-sizes-on-inline-block.html
@@ -125,6 +125,12 @@
   <div class="test max-height stretch" data-expected-height="90">XXXXX XXXXX</div>
 </div>
 
+<!-- Stretch sizes can't result in a negative content size -->
+<div class="wrapper" style="width: 0px; height: 0px">
+  <div class="test width min-width max-width stretch" data-expected-width="10"></div>
+  <div class="test height min-height max-height stretch" data-expected-height="10"></div>
+</div>
+
 <!-- Indefinite stretch -->
 <div class="wrapper" style="width: 100px; max-height: 100px">
   <div class="test height stretch indefinite" data-expected-height="30">X X</div>