Grey the previously connected device preference

* Add PreviouslyConnectedDevicePreferenceController to handle the preference should be enable or disable. Example: If there are no previously connected devices disable the preference otherwise enable it. * Add PreviouslyConnectedDevicePreferenceControllerTest 1. Verify the callback can be registered and unregistered 2. Verify the preference is enable when there have more than 1 previously connected device 3. Verify the preference is disable when there have no previously connected device Bug: 78250052 Test: make -j50 RunSettingsRoboTests Change-Id: I31b5d416aaf907c3bbf1cb61de6e7401463e3df7 Merged-In: I31b5d416aaf907c3bbf1cb61de6e7401463e3df7
2018-04-23 15:55:51 +08:00
parent 37a6a91444
commit 980b718989
4 changed files with 223 additions and 1 deletions
--- a/tests/robotests/src/com/android/settings/connecteddevice/PreviouslyConnectedDevicePreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/connecteddevice/PreviouslyConnectedDevicePreferenceControllerTest.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 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.connecteddevice;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+
+import android.support.v7.preference.Preference;
+
+import com.android.settings.bluetooth.BluetoothDeviceUpdater;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+
+import static com.android.settings.core.BasePreferenceController.AVAILABLE;
+import static com.android.settings.core.BasePreferenceController.CONDITIONALLY_UNAVAILABLE;
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.*;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class PreviouslyConnectedDevicePreferenceControllerTest {
+
+    private final String KEY = "test_key";
+
+    @Mock
+    private DashboardFragment mDashboardFragment;
+    @Mock
+    private BluetoothDeviceUpdater mBluetoothDeviceUpdater;
+    @Mock
+    private PackageManager mPackageManager;
+
+    private Context mContext;
+    private PreviouslyConnectedDevicePreferenceController mPreConnectedDeviceController;
+    private Preference mPreference;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = spy(RuntimeEnvironment.application);
+        doReturn(mContext).when(mDashboardFragment).getContext();
+        doReturn(mPackageManager).when(mContext).getPackageManager();
+        mPreConnectedDeviceController =
+                new PreviouslyConnectedDevicePreferenceController(mContext, KEY);
+        mPreConnectedDeviceController.setBluetoothDeviceUpdater(mBluetoothDeviceUpdater);
+
+        mPreference = new Preference(mContext);
+        mPreConnectedDeviceController.setPreference(mPreference);
+    }
+
+    @Test
+    public void callbackCanRegisterAndUnregister() {
+        // register the callback in onStart()
+        mPreConnectedDeviceController.onStart();
+        verify(mBluetoothDeviceUpdater).registerCallback();
+
+        // unregister the callback in onStop()
+        mPreConnectedDeviceController.onStop();
+        verify(mBluetoothDeviceUpdater).unregisterCallback();
+    }
+
+    @Test
+    public void getAvailabilityStatus_noBluetoothFeature_returnUnSupported() {
+        doReturn(false).when(mPackageManager).hasSystemFeature(PackageManager.FEATURE_BLUETOOTH);
+        assertThat(mPreConnectedDeviceController.getAvailabilityStatus()).isEqualTo(
+                CONDITIONALLY_UNAVAILABLE);
+    }
+    @Test
+    public void getAvailabilityStatus_hasBluetoothFeature_returnSupported() {
+        doReturn(true).when(mPackageManager).hasSystemFeature(PackageManager.FEATURE_BLUETOOTH);
+        assertThat(mPreConnectedDeviceController.getAvailabilityStatus()).isEqualTo(
+                AVAILABLE);
+    }
+
+    @Test
+    public void onDeviceAdded_addFirstDevice_preferenceIsEnable() {
+        doReturn(true).when(mPackageManager).hasSystemFeature(PackageManager.FEATURE_BLUETOOTH);
+        mPreConnectedDeviceController.setPreferenceSize(0);
+        mPreConnectedDeviceController.onDeviceAdded(mPreference);
+
+        assertThat(mPreference.isEnabled()).isTrue();
+    }
+
+    @Test
+    public void onDeviceRemoved_removeLastDevice_preferenceIsDisable() {
+        doReturn(true).when(mPackageManager).hasSystemFeature(PackageManager.FEATURE_BLUETOOTH);
+        mPreConnectedDeviceController.setPreferenceSize(1);
+        mPreConnectedDeviceController.onDeviceRemoved(mPreference);
+
+        assertThat(mPreference.isEnabled()).isFalse();
+    }
+}