1 files changed, 64 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-values/minmax-time-serialize.html b/testing/web-platform/tests/css/css-values/minmax-time-serialize.html
new file mode 100644
index 0000000000..27d09cfa28
--- /dev/null
+++ b/testing/web-platform/tests/css/css-values/minmax-time-serialize.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-values-4/#comp-func">
+<link rel="help" href="https://drafts.csswg.org/css-values-4/#time">
+<link rel="help" href="https://drafts.csswg.org/css-values-4/#calc-serialize">
+<link rel="author" title="Xiaocheng Hu" href="mailto:xiaochengh@chromium.org">
+<link rel="author" title="Tab Atkins-Bittner" href="https://xanthir.com/contact">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../support/serialize-testcommon.js"></script>
+<div id=target></div>
+<script>
+function test_serialization(t,s,c,u, {prop="transition-delay"}={}) {
+    test_specified_serialization(prop, t, s);
+    test_computed_serialization(prop, t, c);
+    if(u) test_used_serialization(prop, t, u);
+}
+
+test_serialization(
+    'min(1ms)',
+    'calc(0.001s)',
+    '0.001s');
+test_serialization(
+    'min(1s)',
+    'calc(1s)',
+    '1s');
+test_serialization(
+    'max(1ms)',
+    'calc(0.001s)',
+    '0.001s');
+test_serialization(
+    'max(1s)',
+    'calc(1s)',
+    '1s');
+
+test_serialization(
+    'min(1s, 2s, 3s)',
+    'calc(1s)',
+    '1s');
+test_serialization(
+    'min(3s, 2s, 1s)',
+    'calc(1s)',
+    '1s');
+test_serialization(
+    'max(1s, 2s, 3s)',
+    'calc(3s)',
+    '3s');
+test_serialization(
+    'max(3s, 2s, 1s)',
+    'calc(3s)',
+    '3s');
+test_serialization(
+    'min(900ms, 1s)',
+    'calc(0.9s)',
+    '0.9s');
+test_serialization(
+    'max(1100ms, 1s)',
+    'calc(1.1s)',
+    '1.1s');
+
+test_serialization(
+    'calc(min(1s, 2s) + max(3s, 4s) + 10s)',
+    'calc(15s)',
+    '15s');
+</script>