Merge "Add preference for WiFi MAC randomization."

tests/robotests/src/com/android/settings/wifi/details/WifiPrivacyPreferenceControllerTest.java

@@ -0,0 +1,89 @@
+/*
+ * 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.wifi.details;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+
+import android.content.Context;
+import android.net.wifi.WifiConfiguration;
+
+import androidx.preference.DropDownPreference;
+
+import com.android.settings.R;
+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.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class WifiPrivacyPreferenceControllerTest {
+
+    private static final int PRIVACY_RANDOMIZED = 0;
+    private static final int PRIVACY_TRUSTED = 1;
+
+    @Mock
+    private WifiConfiguration mWifiConfiguration;
+
+    private WifiPrivacyPreferenceController mPreferenceController;
+    private Context mContext;
+    private DropDownPreference mDropDownPreference;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+
+        WifiPrivacyPreferenceController preferenceController = new WifiPrivacyPreferenceController(
+                mContext);
+        preferenceController.setWifiConfiguration(mWifiConfiguration);
+        mPreferenceController = spy(preferenceController);
+        mDropDownPreference = new DropDownPreference(mContext);
+        mDropDownPreference.setEntries(R.array.wifi_privacy_entries);
+        mDropDownPreference.setEntryValues(R.array.wifi_privacy_values);
+    }
+
+    @Test
+    public void testUpdateState_wifiPrivacy_setCorrectValue() {
+        doReturn(PRIVACY_TRUSTED).when(mPreferenceController).getRandomizationValue();
+
+        mPreferenceController.updateState(mDropDownPreference);
+
+        assertThat(mDropDownPreference.getEntry()).isEqualTo("Trusted");
+    }
+
+    @Test
+    public void testUpdateState_wifiNotMetered_setCorrectValue() {
+        doReturn(PRIVACY_RANDOMIZED).when(mPreferenceController).getRandomizationValue();
+
+        mPreferenceController.updateState(mDropDownPreference);
+
+        assertThat(mDropDownPreference.getEntry()).isEqualTo("Default (use randomized MAC)");
+    }
+
+    @Test
+    public void testController_resilientToNullConfig() {
+        mPreferenceController = spy(new WifiPrivacyPreferenceController(mContext));
+
+        mPreferenceController.getRandomizationValue();
+        mPreferenceController.onPreferenceChange(mDropDownPreference, new String("1"));
+    }
+}