1 files changed, 20 insertions, 0 deletions
diff --git a/testing/web-platform/tests/ua-client-hints/useragentdata.https.any.js b/testing/web-platform/tests/ua-client-hints/useragentdata.https.any.js
new file mode 100644
index 0000000000..fa58835518
--- /dev/null
+++ b/testing/web-platform/tests/ua-client-hints/useragentdata.https.any.js
@@ -0,0 +1,20 @@
+// META: title=tests for navigator.userAgentData
+
+test(t => {
+  const brands = navigator.userAgentData.brands;
+  assert_true(brands.every(brand => brand.brand.length < 32),
+    "No brand should be longer than 32 characters.");
+});
+
+test(t => {
+  const uaData = navigator.userAgentData.toJSON();
+  assert_own_property(uaData, "brands", "toJSON() output has brands member");
+  assert_own_property(uaData, "mobile", "toJSON() output has mobile member");
+  assert_own_property(uaData, "platform", "toJSON() output has platform member");
+}, "test NavigatorUAData.toJSON() output");
+
+promise_test(() => {
+  return navigator.userAgentData.getHighEntropyValues(["architecture"]).then(
+    hints => assert_true(["x86", "arm"].some(item => item == hints.architecture))
+  );
+}, "Arch should be one of two permitted values.");