linux-kernel - [PATCH v3] selftests: hid: tests: test_wacom_generic: add tests for display devices and opaque devices

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Message-Id: <20260131-wacom_selftests_display_opaque_dev_tests-v3-1-0857d734ba4b@gmail.com>
Date: Sat, 31 Jan 2026 15:57:43 -0800
From: Alex Tran <alex.t.tran@...il.com>
To: Jiri Kosina <jikos@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>, 
 Shuah Khan <shuah@...nel.org>
Cc: Ping Cheng <ping.cheng@...om.com>, 
 Jason Gerecke <jason.gerecke@...om.com>, Erin Skomra <skomra@...il.com>, 
 linux-input@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Alex Tran <alex.t.tran@...il.com>
Subject: [PATCH v3] selftests: hid: tests: test_wacom_generic: add tests
 for display devices and opaque devices

Verify Wacom devices set INPUT_PROP_DIRECT on display devices and
INPUT_PROP_POINTER on opaque devices. Verify INPUT_PROP_POINTER
is not set on display devices and INPUT_PROP_DIRECT is not set
on opaque devices.

Moved test_prop_pointer into TestOpaqueTablet. Created a
DirectTabletTest mixin class for test_prop_direct that can be
inherited by display tablet test classes.Used DirectTabletTest
for TestDTH2452Tablet case.

Signed-off-by: Alex Tran <alex.t.tran@...il.com>
---
Changes in v3:
- add assertion for prop tests where opposite is not set

Changes in v2:
- Removed the tests from the BaseTest class
- Removed disabling tests for certain subclasses
- Moved test_prop_pointer under TestOpaqueTablet
- Created DirectTabletTest mixin class
- Moved test_prop_direct under TestDTH2452Tablet
---
 .../selftests/hid/tests/test_wacom_generic.py      | 34 +++++++++++++---------
 1 file changed, 21 insertions(+), 13 deletions(-)

diff --git a/tools/testing/selftests/hid/tests/test_wacom_generic.py b/tools/testing/selftests/hid/tests/test_wacom_generic.py
index 2d6d04f0ff80bea46dc6c61c2b3a43383be6ac50..3903f479b15bdf8937a9f1ae96791f6dee0f89b7 100644
--- a/tools/testing/selftests/hid/tests/test_wacom_generic.py
+++ b/tools/testing/selftests/hid/tests/test_wacom_generic.py
@@ -598,18 +598,6 @@ class BaseTest:
                 if unit_set:
                     assert required[usage].contains(field)
 
-        def test_prop_direct(self):
-            """
-            Todo: Verify that INPUT_PROP_DIRECT is set on display devices.
-            """
-            pass
-
-        def test_prop_pointer(self):
-            """
-            Todo: Verify that INPUT_PROP_POINTER is set on opaque devices.
-            """
-            pass
-
 
 class PenTabletTest(BaseTest.TestTablet):
     def assertName(self, uhdev):
@@ -677,6 +665,15 @@ class TestOpaqueTablet(PenTabletTest):
             uhdev.event(130, 240, pressure=0), [], auto_syn=False, strict=True
         )
 
+    def test_prop_pointer(self):
+        """
+        Verify that INPUT_PROP_POINTER is set and INPUT_PROP_DIRECT
+        is not set on opaque devices.
+        """
+        evdev = self.uhdev.get_evdev()
+        assert libevdev.INPUT_PROP_POINTER in evdev.properties
+        assert libevdev.INPUT_PROP_DIRECT not in evdev.properties
+
 
 class TestOpaqueCTLTablet(TestOpaqueTablet):
     def create_device(self):
@@ -862,7 +859,18 @@ class TestPTHX60_Pen(TestOpaqueCTLTablet):
         )
 
 
-class TestDTH2452Tablet(test_multitouch.BaseTest.TestMultitouch, TouchTabletTest):
+class DirectTabletTest():
+    def test_prop_direct(self):
+        """
+        Verify that INPUT_PROP_DIRECT is set and INPUT_PROP_POINTER
+        is not set on display devices.
+        """
+        evdev = self.uhdev.get_evdev()
+        assert libevdev.INPUT_PROP_DIRECT in evdev.properties
+        assert libevdev.INPUT_PROP_POINTER not in evdev.properties
+
+
+class TestDTH2452Tablet(test_multitouch.BaseTest.TestMultitouch, TouchTabletTest, DirectTabletTest):
     ContactIds = namedtuple("ContactIds", "contact_id, tracking_id, slot_num")
 
     def create_device(self):

---
base-commit: 79b95d74470dd97d7d0908d5a3c0734a23e51aa4
change-id: 20260131-wacom_selftests_display_opaque_dev_tests-4519c400143b

Best regards,
-- 
Alex Tran <alex.t.tran@...il.com>