}
}
- private void updateEmptyView() {
+ @VisibleForTesting
+ void updateEmptyView() {
if (mEmptyView == null) return;
if (getPreferenceScreen() != null) {
+ final View listContainer = getActivity().findViewById(android.R.id.list_container);
boolean show = (getPreferenceScreen().getPreferenceCount()
- (mHeader != null ? 1 : 0)
- - (mFooterPreferenceMixin.hasFooter() ? 1 : 0)) <= 0;
+ - (mFooterPreferenceMixin.hasFooter() ? 1 : 0)) <= 0
+ || (listContainer != null && listContainer.getVisibility() != View.VISIBLE);
mEmptyView.setVisibility(show ? View.VISIBLE : View.GONE);
} else {
mEmptyView.setVisibility(View.VISIBLE);
package com.android.settings;
+import android.app.Activity;
import android.content.Context;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceCategory;
import android.support.v7.preference.PreferenceManager;
import android.support.v7.preference.PreferenceScreen;
+import android.view.View;
import org.junit.Before;
import org.junit.Test;
import org.mockito.MockitoAnnotations;
import org.robolectric.RuntimeEnvironment;
import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;
@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
public class SettingsPreferenceFragmentTest {
+ private static final int ITEM_COUNT = 5;
+
@Mock
private PreferenceManager mPreferenceManager;
+ @Mock
+ private Activity mActivity;
+ @Mock
+ private View mListContainer;
+ @Mock
+ private PreferenceScreen mPreferenceScreen;
private Context mContext;
private TestFragment mFragment;
+ private View mEmptyView;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
mContext = RuntimeEnvironment.application;
- mFragment = new TestFragment();
+ mFragment = spy(new TestFragment());
+ doReturn(mActivity).when(mFragment).getActivity();
+
+ mEmptyView = new View(mContext);
+ ReflectionHelpers.setField(mFragment, "mEmptyView", mEmptyView);
+
+ doReturn(ITEM_COUNT).when(mPreferenceScreen).getPreferenceCount();
}
@Test
assertThat(mScreen.getPreferenceCount()).isEqualTo(1);
}
- public static final class TestFragment extends SettingsPreferenceFragment {
+ @Test
+ public void testUpdateEmptyView_containerInvisible_emptyViewVisible() {
+ doReturn(View.INVISIBLE).when(mListContainer).getVisibility();
+ doReturn(mListContainer).when(mActivity).findViewById(android.R.id.list_container);
+ doReturn(mPreferenceScreen).when(mFragment).getPreferenceScreen();
+
+ mFragment.updateEmptyView();
+
+ assertThat(mEmptyView.getVisibility()).isEqualTo(View.VISIBLE);
+ }
+
+ @Test
+ public void testUpdateEmptyView_containerNull_emptyViewGone() {
+ doReturn(mPreferenceScreen).when(mFragment).getPreferenceScreen();
+
+ mFragment.updateEmptyView();
+
+ assertThat(mEmptyView.getVisibility()).isEqualTo(View.GONE);
+ }
+
+ public static class TestFragment extends SettingsPreferenceFragment {
@Override
public int getMetricsCategory() {