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Unified Diff: third_party/WebKit/LayoutTests/animations/custom-properties/registered-var-to-unregistered-animating.html

Issue 2809063002: WIP Support var() references in registered custom property keyframes (Closed)
Patch Set: Rebased Created 3 years, 6 months ago
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Index: third_party/WebKit/LayoutTests/animations/custom-properties/registered-var-to-unregistered-animating.html
diff --git a/third_party/WebKit/LayoutTests/animations/custom-properties/registered-var-to-unregistered-animating.html b/third_party/WebKit/LayoutTests/animations/custom-properties/registered-var-to-unregistered-animating.html
new file mode 100644
index 0000000000000000000000000000000000000000..f1bfa18406ffd12a98b87cf524c5ea3762d01329
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/animations/custom-properties/registered-var-to-unregistered-animating.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<script src="../../resources/testharness.js"></script>
+<script src="../../resources/testharnessreport.js"></script>
+<style>
+#target {
+ --from: 100;
+}
+</style>
+<div id="target"></div>
+<script>
+CSS.registerProperty({
+ name: '--test',
+ syntax: '<number>',
+ initialValue: '0',
+});
+
+test(() => {
+ let animation = target.animate({'--test': ['var(--from)', 'var(--to)']}, 100);
+ let toAnimation = target.animate({'--to': ['200', '300']}, 100);
+
+ toAnimation.currentTime = 25;
+ {
+ animation.currentTime = 25;
+ assert_equals(getComputedStyle(target).getPropertyValue('--test'), '125', 'target at 25%, to at 25%');
+
+ animation.currentTime = 75;
+ assert_equals(getComputedStyle(target).getPropertyValue('--test'), '175', 'target at 75%, to at 25%');
+ }
+
+ toAnimation.currentTime = 75;
+ {
+ animation.currentTime = 25;
+ assert_equals(getComputedStyle(target).getPropertyValue('--test'), '150', 'target at 25%, to at 75%');
+
+ animation.currentTime = 75;
+ assert_equals(getComputedStyle(target).getPropertyValue('--test'), '250', 'target at 75%, to at 75%');
+ }
+}, 'Registered custom property animation keyframes with var() references to animating unregistered custom properties');
+</script>

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