1 files changed, 29 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-color/parsing/color-invalid-color-contrast-function.html b/testing/web-platform/tests/css/css-color/parsing/color-invalid-color-contrast-function.html
new file mode 100644
index 0000000000..1ac9792691
--- /dev/null
+++ b/testing/web-platform/tests/css/css-color/parsing/color-invalid-color-contrast-function.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Color Level 6: Parsing and serialization of colors using invalid color-contrast() function syntax</title>
+<link rel="author" title="Sam Weinig" href="mailto:weinig@apple.com">
+<link rel="help" href="https://drafts.csswg.org/css-color-6/#colorcontrast">
+<link rel="help" href="https://drafts.csswg.org/css-color-6/#resolving-contrast">
+<link rel="help" href="https://drafts.csswg.org/css-color-6/#serial-color-contrast">
+<meta name="assert" content="invalid color-contrast() values fail to parse">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/parsing-testcommon.js"></script>
+</head>
+<body>
+<script>
+    test_invalid_value('color', `color-contrast(white vs red)`);
+    test_invalid_value('color', `color-contrast(white vs red,)`);
+    test_invalid_value('color', `color-contrast(white vs )`);
+    test_invalid_value('color', `color-contrast(white)`);
+    test_invalid_value('color', `color-contrast(white vs red green)`);
+    test_invalid_value('color', `color-contrast(white vs red, green to)`);
+    test_invalid_value('color', `color-contrast(white vs red, green to invalid)`);
+    test_invalid_value('color', `color-contrast(white vs red to AA)`);
+    test_invalid_value('color', `color-contrast(white vs red, green white)`);
+    test_invalid_value('color', `color-contrast(white vs red, green to AA white)`);
+</script>
+</body>
+</html>