[Settings] Rollback group UUID merging in SIM settings

Within origin design, subscriptions with same group UUID
are not merged together.

This is a fix which changing grouping by UUID part into a configurable
option which allows to be enabled in some other conditions.

Bug: 191228344
Test: local
Change-Id: I0101f4a51ec2342f059762f0e7d38bb4e93554cf

tests/unit/src/com/android/settings/network/helper/SelectableSubscriptionsTest.java

@@ -33,7 +33,6 @@ public class SelectableSubscriptionsTest {
     public void setUp() {
     }
 
-
     @Test
     public void atomicToList_nullInput_getNoneNullEmptyList() {
         List<Integer> result = SelectableSubscriptions.atomicToList(null);

tests/unit/src/com/android/settings/network/helper/SubscriptionGroupingTest.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2021 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.helper;
+
+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.when;
+
+import android.content.Context;
+import android.os.ParcelUuid;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import com.android.settings.network.helper.SubscriptionAnnotation;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+
+import java.util.Arrays;
+import java.util.List;
+
+@RunWith(AndroidJUnit4.class)
+public class SubscriptionGroupingTest {
+
+    private ParcelUuid mMockUuid;
+
+    private Context mContext;
+    private SubscriptionGrouping mTarget;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = spy(ApplicationProvider.getApplicationContext());
+        mMockUuid = ParcelUuid.fromString("1-1-1-1-1");
+        mTarget = spy(new SubscriptionGrouping());
+    }
+
+    @Test
+    public void apply_multipleEntriesWithSameGroupUuid_onlyOneLeft() {
+        SubscriptionAnnotation subAnno1 = new TestSubAnnotation(1,
+                SubscriptionAnnotation.TYPE_ESIM, true, true, mMockUuid);
+        SubscriptionAnnotation subAnno2 = new TestSubAnnotation(2,
+                SubscriptionAnnotation.TYPE_PSIM, true, true, mMockUuid);
+        SubscriptionAnnotation subAnno3 = new TestSubAnnotation(3,
+                SubscriptionAnnotation.TYPE_ESIM, true, true, mMockUuid);
+        doReturn(mMockUuid).when(mTarget).getGroupUuid(any());
+
+        List<SubscriptionAnnotation> result = mTarget
+                .apply(Arrays.asList(subAnno2, subAnno1, subAnno3));
+        assertThat(result.size()).isEqualTo(1);
+        assertThat(result.get(0)).isEqualTo(subAnno3);
+    }
+
+    @Test
+    public void apply_multipleEntriesWithSameGroupUuid_disabledOneIsAvoided() {
+        SubscriptionAnnotation subAnno1 = new TestSubAnnotation(1,
+                SubscriptionAnnotation.TYPE_ESIM, true, true, mMockUuid);
+        SubscriptionAnnotation subAnno2 = new TestSubAnnotation(2,
+                SubscriptionAnnotation.TYPE_PSIM, true, true, mMockUuid);
+        SubscriptionAnnotation subAnno3 = new TestSubAnnotation(3,
+                SubscriptionAnnotation.TYPE_ESIM, false, false, mMockUuid);
+        doReturn(mMockUuid).when(mTarget).getGroupUuid(any());
+
+        List<SubscriptionAnnotation> result = mTarget
+                .apply(Arrays.asList(subAnno2, subAnno1, subAnno3));
+        assertThat(result.size()).isEqualTo(1);
+        assertThat(result.get(0)).isEqualTo(subAnno1);
+    }
+
+    private class TestSubAnnotation extends SubscriptionAnnotation {
+        private int mSubId;
+        private int mSimType;
+        private boolean mIsActive;
+        private boolean mIsDisplayAllowed;
+        private ParcelUuid mUuid;
+
+        private TestSubAnnotation(int subId, int simType,
+                boolean isActive, boolean isDisplayAllowed, ParcelUuid guuid) {
+            super(null, -1, null, null, null, null);
+            mSubId = subId;
+            mSimType = simType;
+            mIsActive = isActive;
+            mIsDisplayAllowed = isDisplayAllowed;
+            mUuid = guuid;
+        }
+
+        @Override
+        public int getSubscriptionId() {
+            return mSubId;
+        }
+
+        @Override
+        public int getType() {
+            return mSimType;
+        }
+
+        @Override
+        public boolean isExisted() {
+            return true;
+        }
+
+        @Override
+        public boolean isActive() {
+            return mIsActive;
+        }
+
+        @Override
+        public boolean isDisplayAllowed() {
+            return mIsDisplayAllowed;
+        }
+
+        @Override
+        public ParcelUuid getGroupUuid() {
+            return mUuid;
+        }
+    }
+}