summaryrefslogtreecommitdiffstats
path: root/layout/style/test/test_transitions_at_start.html
diff options
context:
space:
mode:
Diffstat (limited to 'layout/style/test/test_transitions_at_start.html')
-rw-r--r--layout/style/test/test_transitions_at_start.html38
1 files changed, 38 insertions, 0 deletions
diff --git a/layout/style/test/test_transitions_at_start.html b/layout/style/test/test_transitions_at_start.html
new file mode 100644
index 0000000000..15805bbc09
--- /dev/null
+++ b/layout/style/test/test_transitions_at_start.html
@@ -0,0 +1,38 @@
+<!doctype html>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1380133
+-->
+<head>
+ <meta charset=utf-8>
+ <title>Test for transition value at start (Bug 1380133)</title>
+ <script src="/resources/testharness.js"></script>
+ <script src="/resources/testharnessreport.js"></script>
+ <link rel="stylesheet" href="/resources/testharness.css">
+ <style>
+ a {
+ color: red;
+ transition: 100s color;
+ }
+ a.active {
+ color: blue;
+ }
+ </style>
+</head>
+<body>
+<a id=anchor><span id=span>Test</span></a>
+</body>
+<script>
+'use strict';
+
+const anchor = document.getElementById('anchor');
+const span = document.getElementById('span');
+
+test(() => {
+ anchor.classList.add('active');
+ assert_equals(getComputedStyle(span).color, 'rgb(255, 0, 0)',
+ 'The child of a transitioning element should inherit its'
+ + ' parent\'s transition start value');
+}, 'Transition start value should be inherited');
+</script>
+</html>