Upstream a transitions test to wpt.
I'm fixing something similar to the original issue in Firefox and this
is a good test to have.
Bug: 571437
Change-Id: I511cdf1c6a355988382d83f392987c43d2e0bc24
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3368441
Auto-Submit: Emilio Cobos Álvarez <emilio@chromium.org>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/main@{#955880}
diff --git a/css/css-transitions/retargetted-transition-with-box-sizing.html b/css/css-transitions/retargetted-transition-with-box-sizing.html
new file mode 100644
index 0000000..ef5b116
--- /dev/null
+++ b/css/css-transitions/retargetted-transition-with-box-sizing.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<link rel=help href="https://bugs.chromium.org/p/chromium/issues/detail?id=571437">
+<link rel=help href="https://drafts.csswg.org/css-transforms-2/#interpolation-of-transform-functions">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+#target {
+ width: 100px;
+ height: 200px;
+ transition-properties: transform;
+ transition-duration: 1s;
+ transition-delay: -0.5s;
+ transition-timing-function: linear;
+}
+</style>
+<div id="target"></div>
+<script>
+test(() => {
+ target.style.transform = 'translate(50%, 50%)';
+ assert_equals(getComputedStyle(target).transform, 'matrix(1, 0, 0, 1, 50, 100)');
+ target.style.transform = 'translate3D(50%, 50%, 100px)';
+ assert_equals(getComputedStyle(target).transform, 'matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 50, 100, 50, 1)');
+}, 'Retargeting transitions on box size relative transitions should work.');
+</script>
