| /* |
| * Copyright (C) 2015 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.documentsui.dirlist; |
| |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.support.v7.widget.RecyclerView; |
| import android.test.AndroidTestCase; |
| import android.test.suitebuilder.annotation.SmallTest; |
| import android.util.SparseArray; |
| import android.view.ViewGroup; |
| |
| import com.android.documentsui.State; |
| |
| import java.util.List; |
| |
| @SmallTest |
| public class ModelBackedDocumentsAdapterTest extends AndroidTestCase { |
| |
| private static final String AUTHORITY = "test_authority"; |
| private static final String[] NAMES = new String[] { |
| "4", |
| "foo", |
| "1", |
| "bar", |
| "*(Ljifl;a", |
| "0", |
| "baz", |
| "2", |
| "3", |
| "%$%VD" |
| }; |
| |
| private TestModel mModel; |
| private ModelBackedDocumentsAdapter mAdapter; |
| |
| public void setUp() { |
| |
| final Context testContext = TestContext.createStorageTestContext(getContext(), AUTHORITY); |
| mModel = new TestModel(testContext, AUTHORITY); |
| mModel.update(NAMES); |
| |
| DocumentsAdapter.Environment env = new TestEnvironment(testContext); |
| |
| mAdapter = new ModelBackedDocumentsAdapter( |
| env, new IconHelper(testContext, State.MODE_GRID)); |
| mAdapter.onModelUpdate(mModel); |
| } |
| |
| // Tests that the item count is correct. |
| public void testItemCount() { |
| assertEquals(mModel.getItemCount(), mAdapter.getItemCount()); |
| } |
| |
| // Tests that the item count is correct. |
| public void testHide_ItemCount() { |
| List<String> ids = mModel.getModelIds(); |
| mAdapter.hide(ids.get(0), ids.get(1)); |
| assertEquals(mModel.getItemCount() - 2, mAdapter.getItemCount()); |
| } |
| |
| // Tests that the items can be hidden and unhidden. |
| public void testUnhide_ItemCount() { |
| List<String> ids = mModel.getModelIds(); |
| SparseArray<String> hidden = mAdapter.hide(ids.toArray(new String[ids.size()])); |
| mAdapter.unhide(hidden); |
| assertEquals(mModel.getItemCount(), mAdapter.getItemCount()); |
| } |
| |
| // Tests that the items can be hidden and unhidden. |
| public void testUnhide_PreservesOrder() { |
| List<String> ids = mModel.getModelIds(); |
| SparseArray<String> hidden = mAdapter.hide( |
| ids.get(0), ids.get(1), ids.get(5), ids.get(9)); |
| mAdapter.unhide(hidden); |
| |
| // Finally ensure the restored items are in the original order |
| // by checking them against the model. |
| for (int i = 0; i < mAdapter.getItemCount(); i++) { |
| assertEquals(mModel.idForPosition(i), mAdapter.getModelId(i)); |
| } |
| } |
| |
| private final class TestEnvironment implements DocumentsAdapter.Environment { |
| private final Context testContext; |
| |
| private TestEnvironment(Context testContext) { |
| this.testContext = testContext; |
| } |
| |
| @Override |
| public boolean isSelected(String id) { |
| return false; |
| } |
| |
| @Override |
| public boolean isDocumentEnabled(String mimeType, int flags) { |
| return true; |
| } |
| |
| @Override |
| public void initDocumentHolder(DocumentHolder holder) {} |
| |
| @Override |
| public Model getModel() { |
| return mModel; |
| } |
| |
| @Override |
| public State getDisplayState() { |
| return null; |
| } |
| |
| @Override |
| public Context getContext() { |
| return testContext; |
| } |
| |
| @Override |
| public int getColumnCount() { |
| return 4; |
| } |
| |
| @Override |
| public void onBindDocumentHolder(DocumentHolder holder, Cursor cursor) {} |
| } |
| |
| private static class DummyListener implements Model.UpdateListener { |
| public void onModelUpdate(Model model) {} |
| public void onModelUpdateFailed(Exception e) {} |
| } |
| |
| private static class DummyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { |
| public int getItemCount() { return 0; } |
| public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {} |
| public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { |
| return null; |
| } |
| } |
| } |