Merge "SliceLiveData should remove observers."

        if (sliceLiveData == null) {

            sliceLiveData = SliceLiveData.fromUri(mContext, uri);

            mSliceLiveDataMap.put(uri.toString(), sliceLiveData);

        }

        sliceLiveData.removeObservers(mLifecycleOwner);

        sliceLiveData.observe(mLifecycleOwner, slice -> {

            if (slice == null) {

                Log.w(TAG, "Slice is null");

            }

            cardHolder.sliceView.setSlice(slice);

        });

        }

        // Set this listener so we can log the interaction users make on the slice

        cardHolder.sliceView.setOnSliceActionListener(this);

import static com.google.common.truth.Truth.assertThat;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.verify;

import android.content.Context;

import android.net.Uri;

import android.view.View;

import androidx.lifecycle.LifecycleOwner;

import androidx.lifecycle.LiveData;

import androidx.recyclerview.widget.LinearLayoutManager;

import androidx.recyclerview.widget.RecyclerView;

import androidx.slice.Slice;

import com.android.settings.homepage.ContextualCard;

import com.android.settings.homepage.PersonalSettingsFragment;

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;

@RunWith(SettingsRobolectricTestRunner.class)

public class SliceContextualCardRendererTest {

    @Mock

    private LiveData<Slice> mSliceLiveData;

    private Context mContext;

    private SliceContextualCardRenderer mRenderer;

    private LifecycleOwner mLifecycleOwner;

        assertThat(mRenderer.mSliceLiveDataMap.get(sliceUri).hasObservers()).isTrue();

    }

    @Test

    public void bindview_sliceLiveDataShouldRemoveObservers() {

        final String sliceUri = "content://com.android.settings.slices/action/flashlight";

        mRenderer.mSliceLiveDataMap.put(sliceUri, mSliceLiveData);

        mRenderer.bindView(getSliceViewHolder(), buildContextualCard(sliceUri));

        verify(mSliceLiveData).removeObservers(mLifecycleOwner);

    }

    private RecyclerView.ViewHolder getSliceViewHolder() {

        final int viewType = mRenderer.getViewType();

        final RecyclerView recyclerView = new RecyclerView(mContext);