[Wi-Fi] Add IMSI privacy protection warning summary

If a SIM based Wi-Fi network is not provided with IMSI
protection, Wi-Fi detail UI shows the warning summary if
the Wi-Fi network is connected.

Bug: 148283447
Test: make RunSettingsRoboTests ROBOTEST_FILTER=WifiSecondSummaryController2Test
      make RunSettingsRoboTests ROBOTEST_FILTER=LinkifySummaryPreferenceTest

Change-Id: I689a75d2f0a2ae6196b2ed5985b8ff141fbac8b4

tests/robotests/src/com/android/settings/widget/LinkifySummaryPreferenceTest.java

@@ -0,0 +1,99 @@
+/*
+ * 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.widget;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.method.LinkMovementMethod;
+import android.text.style.URLSpan;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.preference.PreferenceViewHolder;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.Spy;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class LinkifySummaryPreferenceTest {
+    @Spy
+    private PreferenceViewHolder mViewHolder;
+    @Mock
+    private TextView mSummaryTextView;
+    private LinkifySummaryPreference mPreference;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        final Context context = RuntimeEnvironment.application;
+        mPreference = new LinkifySummaryPreference(context, null /* attrs */);
+
+        final View view = spy(View.inflate(context, mPreference.getLayoutResource(),
+                null /* root */));
+        mViewHolder = spy(PreferenceViewHolder.createInstanceForTests(view));
+        doReturn(mSummaryTextView).when(mViewHolder).findViewById(android.R.id.summary);
+    }
+
+    @Test
+    public void onBindViewHolder_summaryTextViewGone_shouldNotSetMovementMethod() {
+        when(mSummaryTextView.getVisibility()).thenReturn(View.GONE);
+
+        mPreference.onBindViewHolder(mViewHolder);
+
+        verify(mSummaryTextView, never()).setMovementMethod(LinkMovementMethod.getInstance());
+    }
+
+    @Test
+    public void onBindViewHolder_noLinkSummary_shouldNotSetMovementMethod() {
+        when(mSummaryTextView.getVisibility()).thenReturn(View.VISIBLE);
+        final CharSequence seondSummary = "secondSummary";
+        mPreference.setSummary(seondSummary);
+
+        mPreference.onBindViewHolder(mViewHolder);
+
+        verify(mSummaryTextView, never()).setMovementMethod(LinkMovementMethod.getInstance());
+    }
+
+    @Test
+    public void onBindViewHolder_linkedSummary_shouldSetMovementMethod() {
+        when(mSummaryTextView.getVisibility()).thenReturn(View.VISIBLE);
+        final CharSequence seondSummary = "secondSummary";
+        final SpannableStringBuilder summaryBuilder = new SpannableStringBuilder();
+        summaryBuilder.append(seondSummary, new URLSpan("" /* url */),
+                Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+        mPreference.setSummary(summaryBuilder);
+
+        mPreference.onBindViewHolder(mViewHolder);
+
+        verify(mSummaryTextView).setMovementMethod(any(LinkMovementMethod.class));
+    }
+}

tests/robotests/src/com/android/settings/wifi/details2/WifiSecondSummaryController2Test.java

@@ -0,0 +1,63 @@
+/*
+ * 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.details2;
+
+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.when;
+
+import com.android.wifitrackerlib.WifiEntry;
+
+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;
+
+@RunWith(RobolectricTestRunner.class)
+public class WifiSecondSummaryController2Test {
+
+    private WifiSecondSummaryController2 mController;
+    @Mock
+    private WifiEntry mWifiEntry;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mController = new WifiSecondSummaryController2(RuntimeEnvironment.application);
+    }
+
+    @Test
+    public void getAvailabilityStatus_showWhenSummaryAvailable() {
+        // Visible when summary is not empty.
+        when(mWifiEntry.getSecondSummary()).thenReturn("test");
+        mController.setWifiEntry(mWifiEntry);
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE);
+
+        // Invisible when summary is empty.
+        when(mWifiEntry.getSecondSummary()).thenReturn("");
+        mController.setWifiEntry(mWifiEntry);
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(CONDITIONALLY_UNAVAILABLE);
+    }
+}