Merge "USI Stylus settings Fragment."

tests/robotests/src/com/android/settings/connecteddevice/stylus/StylusUsiHeaderControllerTest.java

@@ -0,0 +1,158 @@
+/*
+ * 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.connecteddevice.stylus;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.hardware.BatteryState;
+import android.hardware.input.InputManager;
+import android.os.Bundle;
+import android.view.InputDevice;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.preference.PreferenceManager;
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+import com.android.settingslib.widget.LayoutPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+
+@RunWith(RobolectricTestRunner.class)
+public class StylusUsiHeaderControllerTest {
+
+    private Context mContext;
+    private StylusUsiHeaderController mController;
+    private LayoutPreference mLayoutPreference;
+    private PreferenceScreen mScreen;
+    private InputDevice mInputDevice;
+
+    @Mock
+    private InputManager mInputManager;
+    @Mock
+    private BatteryState mBatteryState;
+    @Mock
+    private Bundle mBundle;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        InputDevice device = new InputDevice.Builder().setId(1).setSources(
+                InputDevice.SOURCE_BLUETOOTH_STYLUS).build();
+        mInputDevice = spy(device);
+        when(mInputDevice.getBatteryState()).thenReturn(mBatteryState);
+        when(mBatteryState.getCapacity()).thenReturn(1f);
+        when(mBatteryState.isPresent()).thenReturn(true);
+
+        mContext = spy(ApplicationProvider.getApplicationContext());
+        when(mContext.getSystemService(InputManager.class)).thenReturn(mInputManager);
+        mController = new StylusUsiHeaderController(mContext, mInputDevice);
+
+        PreferenceManager preferenceManager = new PreferenceManager(mContext);
+        mLayoutPreference = new LayoutPreference(mContext,
+                LayoutInflater.from(mContext).inflate(R.layout.advanced_bt_entity_header, null));
+        mLayoutPreference.setKey(mController.getPreferenceKey());
+
+        mScreen = preferenceManager.createPreferenceScreen(mContext);
+        mScreen.addPreference(mLayoutPreference);
+
+    }
+
+    @Test
+    public void onCreate_registersBatteryListener() {
+        mController.onCreate(mBundle);
+
+        verify(mInputManager).addInputDeviceBatteryListener(mInputDevice.getId(),
+                mContext.getMainExecutor(),
+                mController);
+    }
+
+    @Test
+    public void onDestroy_unregistersBatteryListener() {
+        mController.onDestroy();
+
+        verify(mInputManager).removeInputDeviceBatteryListener(mInputDevice.getId(),
+                mController);
+    }
+
+    @Test
+    public void displayPreference_showsCorrectTitle() {
+        mController.displayPreference(mScreen);
+
+        assertThat(((TextView) mLayoutPreference.findViewById(
+                R.id.entity_header_title)).getText().toString()).isEqualTo(
+                mContext.getString(R.string.stylus_usi_header_title));
+    }
+
+    @Test
+    public void displayPreference_hasBattery_showsCorrectBatterySummary() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mLayoutPreference.findViewById(
+                R.id.entity_header_summary).getVisibility()).isEqualTo(View.VISIBLE);
+        assertThat(((TextView) mLayoutPreference.findViewById(
+                R.id.entity_header_summary)).getText().toString()).isEqualTo(
+                "100%");
+    }
+
+    @Test
+    public void displayPreference_noBattery_showsEmptySummary() {
+        when(mBatteryState.isPresent()).thenReturn(false);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mLayoutPreference.findViewById(
+                R.id.entity_header_summary).getVisibility()).isEqualTo(View.INVISIBLE);
+    }
+
+    @Test
+    public void displayPreference_invalidCapacity_showsEmptySummary() {
+        when(mBatteryState.getCapacity()).thenReturn(-1f);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mLayoutPreference.findViewById(
+                R.id.entity_header_summary).getVisibility()).isEqualTo(View.INVISIBLE);
+    }
+
+    @Test
+    public void onBatteryStateChanged_updatesSummary() {
+        mController.displayPreference(mScreen);
+
+        when(mBatteryState.getCapacity()).thenReturn(0.2f);
+        mController.onBatteryStateChanged(mInputDevice.getId(),
+                System.currentTimeMillis(), mBatteryState);
+
+        assertThat(((TextView) mLayoutPreference.findViewById(
+                R.id.entity_header_summary)).getText().toString()).isEqualTo(
+                "20%");
+    }
+}