1 files changed, 45 insertions, 0 deletions
diff --git a/testing/web-platform/tests/pointerevents/deviceproperties/get-device-properties-uniqueid-from-pointer-event.tentative.html b/testing/web-platform/tests/pointerevents/deviceproperties/get-device-properties-uniqueid-from-pointer-event.tentative.html
new file mode 100644
index 0000000000..dc6b9379c1
--- /dev/null
+++ b/testing/web-platform/tests/pointerevents/deviceproperties/get-device-properties-uniqueid-from-pointer-event.tentative.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<!--
+   Tentative; contingent on merge of:
+   https://github.com/w3c/pointerevents/pull/495
+-->
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+
+<style>
+  div {
+    user-select: none; // Prevents text selection on drag.
+  }
+</style>
+<div id="logger" draggable="false"></div>
+<div id="console"></div>
+<!-- This test verifies that pointerEvent.deviceProperties.uniqueId is 0
+     by default for a pointer with an invalid hardware id - in this case
+     a testdriver generated event, which does not support hardware id. -->
+<script>
+    function CheckDeviceId(event) {
+        eventFired++;
+        assert_equals(event.deviceProperties.uniqueId, 0, "deviceId is 0");
+    }
+
+    window.addEventListener("pointerdown", CheckDeviceId, false);
+    window.addEventListener("pointermove", CheckDeviceId, false);
+
+    promise_test(async () => {
+        if (!window.internals)
+          return;
+        eventFired = 0;
+        let actions = new test_driver.Actions()
+          .addPointer("TestPointer", "pen")
+          .pointerDown()
+          .pointerMove(100, 100)
+          .pointerUp();
+
+        await actions.send();
+
+        assert_true(eventFired == 2);
+    }, 'PointerEvent.deviceProperties.uniqueId');
+</script>
+\ No newline at end of file