Fix preferences under Related category can not launch its own page in bluetooth device details page

Root Cause: KeyboardSettingsPreferenceController override
handlePreferenceTreeClick() without checking the preference key, it will lead to handle all preferences' click action.

Solution: Check the preference is the expected preference key

Bug: 264017256
Test: make RunSettingsRoboTests ROBOTEST_FILTER=KeyboardSettingsPreferenceControllerTest
Change-Id: Idcdadc323df5b758b4b21329227e2bb721b1c394

src/com/android/settings/inputmethod/KeyboardSettingsPreferenceController.java

@@ -50,6 +50,10 @@ public class KeyboardSettingsPreferenceController extends BasePreferenceControll
 
     @Override
     public boolean handlePreferenceTreeClick(Preference preference) {
+        if (!getPreferenceKey().equals(preference.getKey())) {
+            return false;
+        }
+
         final Intent intent = new Intent(Settings.ACTION_HARD_KEYBOARD_SETTINGS);
         intent.setClass(mContext, PhysicalKeyboardActivity.class);
         intent.putExtra(PhysicalKeyboardFragment.EXTRA_BT_ADDRESS, mCachedDevice.getAddress());

tests/robotests/src/com/android/settings/inputmethod/KeyboardSettingsPreferenceControllerTest.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.inputmethod;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.RobolectricTestRunner;
+
+/** Tests for {@link KeyboardSettingsPreferenceController} */
+@RunWith(RobolectricTestRunner.class)
+public class KeyboardSettingsPreferenceControllerTest {
+
+    @Rule
+    public MockitoRule mMockitoRule = MockitoJUnit.rule();
+
+    private static final String PREFERENCE_KEY = "keyboard_settings";
+
+    @Mock
+    private Activity mActivity;
+    @Mock
+    private CachedBluetoothDevice mCachedBluetoothDevice;
+    @Captor
+    private ArgumentCaptor<Intent> mIntentArgumentCaptor;
+    private Context mContext;
+    private KeyboardSettingsPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        mContext = spy(ApplicationProvider.getApplicationContext());
+        mController = new KeyboardSettingsPreferenceController(mContext, PREFERENCE_KEY);
+        mController.init(mCachedBluetoothDevice, mActivity);
+    }
+
+    @Test
+    public void handlePreferenceTreeClick_expected() {
+        Preference mKeyboardPreference = new Preference(mContext);
+        mKeyboardPreference.setKey(PREFERENCE_KEY);
+
+        mController.handlePreferenceTreeClick(mKeyboardPreference);
+
+        verify(mActivity).startActivityForResult(mIntentArgumentCaptor.capture(), eq(0));
+        Intent expectedIntent = mIntentArgumentCaptor.getValue();
+        assertThat(expectedIntent.getAction()).isEqualTo(Settings.ACTION_HARD_KEYBOARD_SETTINGS);
+    }
+
+    @Test
+    public void handlePreferenceTreeClick_notExpected() {
+        Preference mOtherPreference = new Preference(mContext);
+        mOtherPreference.setKey("not_keyboard_settings");
+
+        assertThat(mController.handlePreferenceTreeClick(mOtherPreference)).isFalse();
+    }
+}