Refactor battery related feature provider

Merge BatteryInfoFeatureProvider to BatterySettingsFeatureProvider. Also
add a new string to indicate the unavailability when there's error
fetching the cycle count value.

Bug: 276399056
Test: robotests
Change-Id: Ic6a641d72d5bb295f2a0766dcebdcbe855d91125

tests/robotests/src/com/android/settings/fuelgauge/BatterySettingsFeatureProviderImplTest.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2023 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.fuelgauge;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+import static org.robolectric.Shadows.shadowOf;
+
+import android.content.Context;
+import android.os.BatteryManager;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowBatteryManager;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = {ShadowBatteryManager.class})
+public class BatterySettingsFeatureProviderImplTest {
+    private BatteryManager mBatteryManager;
+    private ShadowBatteryManager mShadowBatteryManager;
+    private Context mContext;
+    private BatterySettingsFeatureProviderImpl mImpl;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = spy(ApplicationProvider.getApplicationContext());
+        mBatteryManager = mContext.getSystemService(BatteryManager.class);
+        mShadowBatteryManager = shadowOf(mBatteryManager);
+        mImpl = spy(new BatterySettingsFeatureProviderImpl(mContext));
+    }
+
+    @Test
+    public void isManufactureDateAvailable_returnFalse() {
+        assertThat(mImpl.isManufactureDateAvailable()).isFalse();
+    }
+
+    @Test
+    public void isFirstUseDateAvailable_returnFalse() {
+        assertThat(mImpl.isFirstUseDateAvailable()).isFalse();
+    }
+
+    @Test
+    public void getManufactureDateSummary_available_returnExpectedDate() {
+        doReturn(true).when(mImpl).isManufactureDateAvailable();
+        mShadowBatteryManager.setLongProperty(BatteryManager.BATTERY_PROPERTY_MANUFACTURING_DATE,
+                1669680000L);
+
+        final CharSequence result = mImpl.getManufactureDateSummary();
+
+        assertThat(result.toString()).isEqualTo("November 29, 2022");
+    }
+
+    @Test
+    public void getManufactureDateSummary_unavailable_returnNull() {
+        doReturn(false).when(mImpl).isManufactureDateAvailable();
+
+        assertThat(mImpl.getManufactureDateSummary()).isNull();
+    }
+
+    @Test
+    public void getFirstUseDateSummary_available_returnExpectedDate() {
+        doReturn(true).when(mImpl).isFirstUseDateAvailable();
+        mShadowBatteryManager.setLongProperty(BatteryManager.BATTERY_PROPERTY_FIRST_USAGE_DATE,
+                1669680000L);
+
+        final CharSequence result = mImpl.getFirstUseDateSummary();
+
+        assertThat(result.toString()).isEqualTo("November 29, 2022");
+    }
+
+    @Test
+    public void getFirstUseDateSummary_unavailable_returnNull() {
+        doReturn(false).when(mImpl).isFirstUseDateAvailable();
+
+        assertThat(mImpl.getFirstUseDateSummary()).isNull();
+    }
+}