From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../transition-after-animation-001.html            | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 testing/web-platform/tests/css/css-transitions/transition-after-animation-001.html

(limited to 'testing/web-platform/tests/css/css-transitions/transition-after-animation-001.html')
diff --git a/testing/web-platform/tests/css/css-transitions/transition-after-animation-001.html b/testing/web-platform/tests/css/css-transitions/transition-after-animation-001.html
new file mode 100644
index 0000000000..13f9f0800b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-transitions/transition-after-animation-001.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<title>Starting transition after animation has ended</title>
+<link rel="help" href="https://drafts.csswg.org/css-transitions/">
+<link rel="help" href="https://crbug.com/1261155">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./support/helper.js"></script>
+<style>
+  @keyframes anim {
+    from { left: 100px }
+    to { left: 200px }
+  }
+  #div {
+    left: 0px;
+    position: relative;
+    width: 50px;
+    height: 50px;
+    background-color: green;
+  }
+  #div.animate {
+    animation: anim 0.1s linear;
+  }
+  #div.transition {
+    left: 300px;
+    transition: left 1000s steps(2, start);
+  }
+</style>
+<div id=div>
+</div>
+<script>
+
+promise_test(async t => {
+    const watcher = new EventWatcher(t, div, ['animationend']);
+
+    assert_equals(getComputedStyle(div).left, '0px');
+
+    div.classList.toggle('animate');
+    assert_equals(getComputedStyle(div).left, '100px');
+
+    await watcher.wait_for('animationend');
+    assert_equals(getComputedStyle(div).left, '0px');
+
+    div.classList.toggle('transition');
+    assert_equals(getComputedStyle(div).left, '150px');
+}, 'Starting transition after animation has ended');
+
+</script>
-- 
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