Refactor DataUsagePreference

Move the logic to PreferenceController

Bug: 114749736
Test: RunSettingsRoboTests
Change-Id: I7a0845c0cbc3f33e23257831d0d4ed97e7a5cc04

tests/robotests/src/com/android/settings/network/telephony/DataUsagePreferenceControllerTest.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2018 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.network.telephony;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import android.content.Context;
+import android.content.Intent;
+import android.provider.Settings;
+import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class DataUsagePreferenceControllerTest {
+    private static final int SUB_ID = 2;
+
+    @Mock
+    private TelephonyManager mTelephonyManager;
+    private DataUsagePreferenceController mController;
+    private SwitchPreference mPreference;
+    private Context mContext;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = spy(RuntimeEnvironment.application);
+        doReturn(mTelephonyManager).when(mContext).getSystemService(Context.TELEPHONY_SERVICE);
+        doReturn(mTelephonyManager).when(mTelephonyManager).createForSubscriptionId(SUB_ID);
+
+        mPreference = new SwitchPreference(mContext);
+        mController = new DataUsagePreferenceController(mContext, "data_usage");
+        mController.init(SUB_ID);
+        mPreference.setKey(mController.getPreferenceKey());
+    }
+
+    @Test
+    public void getAvailabilityStatus_validSubId_returnAvailable() {
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(
+                BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getAvailabilityStatus_invalidSubId_returnUnsearchable() {
+        mController.init(SubscriptionManager.INVALID_SUBSCRIPTION_ID);
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(
+                BasePreferenceController.AVAILABLE_UNSEARCHABLE);
+    }
+
+    @Test
+    public void handlePreferenceTreeClick_needDialog_showDialog() {
+        final ArgumentCaptor<Intent> captor = ArgumentCaptor.forClass(Intent.class);
+        mController.handlePreferenceTreeClick(mPreference);
+
+        verify(mContext).startActivity(captor.capture());
+        final Intent intent = captor.getValue();
+
+        assertThat(intent.getAction()).isEqualTo(Settings.ACTION_MOBILE_DATA_USAGE);
+        assertThat(intent.getIntExtra(Settings.EXTRA_SUB_ID, 0)).isEqualTo(SUB_ID);
+    }
+
+    @Test
+    public void updateState_invalidSubId_disabled() {
+        mController.init(SubscriptionManager.INVALID_SUBSCRIPTION_ID);
+
+        mController.updateState(mPreference);
+
+        assertThat(mPreference.isEnabled()).isFalse();
+    }
+}