[Wi-Fi] Enhance savedaccesspoints2 unit test cases

Add new unit test cases in
1. SavedAccessPointsPreferenceController2Test.java
2. SavedAccessPointsWifiSettings2Test.java
3. SubscribedAccessPointsPreferenceController2Test.java

The coverage rate of com.android.settings.wifi.savedaccesspoints2 will raise from 32% to 85%

Bug: 151696220
Test: Run following test commands
1. make RunSettingsRoboTests ROBOTEST_FILTER=SavedAccessPointsPreferenceController2Test
2. make RunSettingsRoboTests ROBOTEST_FILTER=SavedAccessPointsWifiSettings2Test
3. make RunSettingsRoboTests ROBOTEST_FILTER=SubscribedAccessPointsPreferenceController2Test

Change-Id: I43e43c95019659d507ae0d8b167c5d65cd036b95

src/com/android/settings/wifi/savedaccesspoints2/SavedAccessPointsWifiSettings2.java

@@ -32,6 +32,7 @@ import android.text.TextUtils;
 import android.util.Log;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
 import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
@@ -50,15 +51,15 @@ import java.time.ZoneOffset;
 public class SavedAccessPointsWifiSettings2 extends DashboardFragment
         implements SavedNetworkTracker.SavedNetworkTrackerCallback {
 
-    private static final String TAG = "SavedAccessPoints2";
+    @VisibleForTesting static final String TAG = "SavedAccessPoints2";
 
     // Max age of tracked WifiEntries
     private static final long MAX_SCAN_AGE_MILLIS = 15_000;
     // Interval between initiating SavedNetworkTracker scans
     private static final long SCAN_INTERVAL_MILLIS = 10_000;
 
-    private SavedNetworkTracker mSavedNetworkTracker;
-    private HandlerThread mWorkerThread;
+    @VisibleForTesting SavedNetworkTracker mSavedNetworkTracker;
+    @VisibleForTesting HandlerThread mWorkerThread;
 
     @Override
     public int getMetricsCategory() {

tests/robotests/src/com/android/settings/wifi/savedaccesspoints2/SavedAccessPointsPreferenceController2Test.java

@@ -21,8 +21,12 @@ import static com.android.settings.core.BasePreferenceController.CONDITIONALLY_U
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -119,4 +123,23 @@ public class SavedAccessPointsPreferenceController2Test {
 
         assertThat(mPreferenceCategory.getPreferenceCount()).isEqualTo(0);
     }
+
+    @Test
+    public void onPreferenceClick_shouldCallShowWifiPage() {
+        mContext = spy(RuntimeEnvironment.application);
+        doNothing().when(mContext).startActivity(any());
+        doReturn(mContext).when(mSettings).getContext();
+
+        final String title = "ssid_title";
+        final String key = "key";
+        final WifiEntry mockWifiEntry = mock(WifiEntry.class);
+        when(mockWifiEntry.getTitle()).thenReturn(title);
+        when(mockWifiEntry.getKey()).thenReturn(key);
+        final WifiEntryPreference preference = new WifiEntryPreference(mContext, mockWifiEntry);
+        preference.setKey(key);
+
+        mController.onPreferenceClick(preference);
+
+        verify(mSettings, times(1)).showWifiPage(key, title);
+    }
 }

tests/robotests/src/com/android/settings/wifi/savedaccesspoints2/SavedAccessPointsWifiSettings2Test.java

@@ -18,8 +18,18 @@ package com.android.settings.wifi.savedaccesspoints2;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.fragment.app.FragmentActivity;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
@@ -30,7 +40,9 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.robolectric.Robolectric;
 import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
 
 @RunWith(RobolectricTestRunner.class)
 public class SavedAccessPointsWifiSettings2Test {
@@ -41,11 +53,15 @@ public class SavedAccessPointsWifiSettings2Test {
     private SavedAccessPointsPreferenceController2 mSavedApController;
 
     private TestFragment mSettings;
+    private Context mContext;
+    private FragmentActivity mActivity;
 
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
+        mContext = spy(RuntimeEnvironment.application);
         mSettings = spy(new TestFragment());
+        mActivity = Robolectric.setupActivity(FragmentActivity.class);
 
         doReturn(mSubscribedApController).when(mSettings)
                 .use(SubscribedAccessPointsPreferenceController2.class);
@@ -60,6 +76,54 @@ public class SavedAccessPointsWifiSettings2Test {
                 .isEqualTo(R.xml.wifi_display_saved_access_points2);
     }
 
+    @Test
+    public void getTag_shouldReturnRightTag() {
+        assertThat(mSettings.getLogTag()).isEqualTo(SavedAccessPointsWifiSettings2.TAG);
+    }
+
+    @Test
+    public void onAttach_shouldCallSavedControllerSetHost() {
+        mSettings.onAttach(mContext);
+
+        verify(mSavedApController, times(1)).setHost(any());
+    }
+
+    @Test
+    public void onAttach_shouldCallSubscriptionControllerSetHost() {
+        mSettings.onAttach(mContext);
+
+        verify(mSubscribedApController, times(1)).setHost(any());
+    }
+
+    @Test
+    public void onCreate_shouldNewSavedNetworkTracker() {
+        mSettings = new TestFragment();
+        final FragmentManager fragmentManager = mActivity.getSupportFragmentManager();
+        final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
+        fragmentTransaction.add(mSettings, null /* tag */);
+        fragmentTransaction.commit();
+        final Bundle bundle = new Bundle();
+
+        mSettings.onCreate(bundle);
+
+        assertThat(mSettings.mSavedNetworkTracker).isNotNull();
+    }
+
+    @Test
+    public void onDestroy_shouldTerminateWorkerThread() {
+        mSettings = new TestFragment();
+        final FragmentManager fragmentManager = mActivity.getSupportFragmentManager();
+        final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
+        fragmentTransaction.add(mSettings, null /* tag */);
+        fragmentTransaction.commit();
+        final Bundle bundle = new Bundle();
+        mSettings.onCreate(bundle);
+
+        mSettings.onDestroy();
+
+        assertThat(mSettings.mWorkerThread.getState()).isEqualTo(Thread.State.TERMINATED);
+    }
+
     public static class TestFragment extends SavedAccessPointsWifiSettings2 {
 
         public <T extends AbstractPreferenceController> T use(Class<T> clazz) {

tests/robotests/src/com/android/settings/wifi/savedaccesspoints2/SubscribedAccessPointsPreferenceController2Test.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2020 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.wifi.savedaccesspoints2;
+
+import static com.android.settings.core.BasePreferenceController.CONDITIONALLY_UNAVAILABLE;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceScreen;
+
+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;
+import org.robolectric.RuntimeEnvironment;
+
+import java.util.ArrayList;
+
+@RunWith(RobolectricTestRunner.class)
+public class SubscribedAccessPointsPreferenceController2Test {
+
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+    @Mock
+    private PreferenceCategory mPreferenceCategory;
+
+    private Context mContext;
+    private SavedAccessPointsWifiSettings2 mSettings;
+    private SubscribedAccessPointsPreferenceController2 mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mSettings = spy(new SavedAccessPointsWifiSettings2());
+        mController = spy(new SubscribedAccessPointsPreferenceController2(mContext, "test_key"));
+        mController.setHost(mSettings);
+
+        when(mPreferenceScreen.findPreference(mController.getPreferenceKey()))
+                .thenReturn(mPreferenceCategory);
+        when(mPreferenceCategory.getContext()).thenReturn(mContext);
+    }
+
+    @Test
+    public void getAvailability_noSubscripbedAccessPoint_shouldNotAvailable() {
+        mController.mWifiEntries = new ArrayList<>();
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(CONDITIONALLY_UNAVAILABLE);
+    }
+}
+