linux-kernel - [PATCH v2 12/15] selftests/hid: tablets: add a secondary barrel switch test

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Message-Id: <20231206-wip-selftests-v2-12-c0350c2f5986@kernel.org>
Date:   Wed, 06 Dec 2023 11:46:03 +0100
From:   Benjamin Tissoires <bentiss@...nel.org>
To:     Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Shuah Khan <shuah@...nel.org>,
        Peter Hutterer <peter.hutterer@...-t.net>
Cc:     linux-input@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Benjamin Tissoires <bentiss@...nel.org>
Subject: [PATCH v2 12/15] selftests/hid: tablets: add a secondary barrel
 switch test

Some tablets report 2 barrel switches. We better test those too.

Use the same transistions description from the primary button tests.

Reviewed-by: Peter Hutterer <peter.hutterer@...-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@...nel.org>

---

no changes in v2
---
 tools/testing/selftests/hid/tests/test_tablet.py | 67 ++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/tools/testing/selftests/hid/tests/test_tablet.py b/tools/testing/selftests/hid/tests/test_tablet.py
index 20a7a7fdcd9d..a82db66264c5 100644
--- a/tools/testing/selftests/hid/tests/test_tablet.py
+++ b/tools/testing/selftests/hid/tests/test_tablet.py
@@ -366,6 +366,56 @@ class PenState(Enum):
             ),
         }
 
+    @staticmethod
+    def legal_transitions_with_secondary_button() -> Dict[str, Tuple["PenState", ...]]:
+        """We revisit the Windows Pen Implementation state machine:
+        we now have a secondary button.
+        Note: we don't looks for 2 buttons interactions.
+        """
+        return {
+            "hover-button": (PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,),
+            "hover-button -> out-of-range": (
+                PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+            "in-range -> button-press": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,
+            ),
+            "in-range -> button-press -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> touch -> button-press -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_CONTACT,
+            ),
+            "in-range -> touch -> button-press -> release -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> button-press -> touch -> release -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_CONTACT_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> button-press -> touch -> button-release -> release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_CONTACT_WITH_SECOND_BUTTON,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+        }
+
     @staticmethod
     def tolerated_transitions() -> Dict[str, Tuple["PenState", ...]]:
         """This is not adhering to the Windows Pen Implementation state machine
@@ -444,6 +494,7 @@ class Pen(object):
         self.width = 10
         self.height = 10
         self.barrelswitch = False
+        self.secondarybarrelswitch = False
         self.invert = False
         self.eraser = False
         self.xtilt = 1
@@ -736,6 +787,22 @@ class BaseTest:
             """Rework the transition state machine by adding the primary button."""
             self._test_states(state_list, scribble)
 
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Secondary Barrel Switch" not in uhdev.fields,
+            "Device not compatible, missing Secondary Barrel Switch usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [
+                pytest.param(v, id=k)
+                for k, v in PenState.legal_transitions_with_secondary_button().items()
+            ],
+        )
+        def test_valid_secondary_button_pen_states(self, state_list, scribble):
+            """Rework the transition state machine by adding the secondary button."""
+            self._test_states(state_list, scribble)
+
         @pytest.mark.skip_if_uhdev(
             lambda uhdev: "Invert" not in uhdev.fields,
             "Device not compatible, missing Invert usage",

-- 
2.41.0