| /* |
| * Copyright (C) 2008 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 android.widget.cts; |
| |
| |
| import android.database.DataSetObserver; |
| import android.test.AndroidTestCase; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.BaseAdapter; |
| |
| /** |
| * Test {@link BaseAdapter}. |
| */ |
| public class BaseAdapterTest extends AndroidTestCase { |
| public void testHasStableIds() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| assertFalse(baseAdapter.hasStableIds()); |
| } |
| |
| public void testDataSetObserver() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| MockDataSetObserver dataSetObserver = new MockDataSetObserver(); |
| |
| assertFalse(dataSetObserver.hasCalledOnChanged()); |
| baseAdapter.notifyDataSetChanged(); |
| assertFalse(dataSetObserver.hasCalledOnChanged()); |
| |
| baseAdapter.registerDataSetObserver(dataSetObserver); |
| baseAdapter.notifyDataSetChanged(); |
| assertTrue(dataSetObserver.hasCalledOnChanged()); |
| |
| dataSetObserver.reset(); |
| assertFalse(dataSetObserver.hasCalledOnChanged()); |
| baseAdapter.unregisterDataSetObserver(dataSetObserver); |
| baseAdapter.notifyDataSetChanged(); |
| assertFalse(dataSetObserver.hasCalledOnChanged()); |
| } |
| |
| public void testNotifyDataSetInvalidated() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| MockDataSetObserver dataSetObserver = new MockDataSetObserver(); |
| |
| assertFalse(dataSetObserver.hasCalledOnInvalidated()); |
| baseAdapter.notifyDataSetInvalidated(); |
| assertFalse(dataSetObserver.hasCalledOnInvalidated()); |
| |
| baseAdapter.registerDataSetObserver(dataSetObserver); |
| baseAdapter.notifyDataSetInvalidated(); |
| assertTrue(dataSetObserver.hasCalledOnInvalidated()); |
| } |
| |
| public void testAreAllItemsEnabled() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| assertTrue(baseAdapter.areAllItemsEnabled()); |
| } |
| |
| public void testIsEnabled() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| assertTrue(baseAdapter.isEnabled(0)); |
| } |
| |
| public void testGetDropDownView() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| assertNull(baseAdapter.getDropDownView(0, null, null)); |
| } |
| |
| public void testGetItemViewType() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| assertEquals(0, baseAdapter.getItemViewType(0)); |
| } |
| |
| public void testGetViewTypeCount() { |
| BaseAdapter baseAdapter = new MockBaseAdapter(); |
| assertEquals(1, baseAdapter.getViewTypeCount()); |
| } |
| |
| public void testIsEmpty() { |
| MockBaseAdapter baseAdapter = new MockBaseAdapter(); |
| |
| baseAdapter.setCount(0); |
| assertTrue(baseAdapter.isEmpty()); |
| |
| baseAdapter.setCount(1); |
| assertFalse(baseAdapter.isEmpty()); |
| } |
| |
| private static class MockBaseAdapter extends BaseAdapter { |
| private int mCount = 0; |
| |
| public void setCount(int count) { |
| mCount = count; |
| } |
| |
| public int getCount() { |
| return mCount; |
| } |
| |
| public Object getItem(int position) { |
| return null; |
| } |
| |
| public long getItemId(int position) { |
| return 0; |
| } |
| |
| public View getView(int position, View convertView, ViewGroup parent) { |
| return null; |
| } |
| } |
| |
| private static class MockDataSetObserver extends DataSetObserver { |
| private boolean mCalledOnChanged = false; |
| private boolean mCalledOnInvalidated = false; |
| |
| @Override |
| public void onChanged() { |
| super.onChanged(); |
| mCalledOnChanged = true; |
| } |
| |
| public boolean hasCalledOnChanged() { |
| return mCalledOnChanged; |
| } |
| |
| @Override |
| public void onInvalidated() { |
| super.onInvalidated(); |
| mCalledOnInvalidated = true; |
| } |
| |
| public boolean hasCalledOnInvalidated() { |
| return mCalledOnInvalidated; |
| } |
| |
| public void reset() { |
| mCalledOnChanged = false; |
| mCalledOnInvalidated = false; |
| } |
| } |
| } |