| /* |
| * Copyright 2017 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 androidx.recyclerview.selection.testing; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import androidx.recyclerview.selection.DefaultSelectionTracker; |
| import androidx.recyclerview.selection.Selection; |
| import androidx.recyclerview.selection.SelectionTracker; |
| |
| /** |
| * Helper class for making assertions against the state of a {@link DefaultSelectionTracker} |
| * instance and the consistency of states between {@link DefaultSelectionTracker} and |
| * {@link DefaultSelectionTracker.SelectionObserver}. |
| */ |
| public final class SelectionProbe { |
| |
| private final SelectionTracker<String> mMgr; |
| private final TestSelectionObserver<String> mSelectionListener; |
| |
| public SelectionProbe(SelectionTracker<String> mgr) { |
| mMgr = mgr; |
| mSelectionListener = new TestSelectionObserver<String>(); |
| mMgr.addObserver(mSelectionListener); |
| } |
| |
| public SelectionProbe( |
| SelectionTracker<String> mgr, TestSelectionObserver<String> selectionListener) { |
| mMgr = mgr; |
| mSelectionListener = selectionListener; |
| } |
| |
| public void assertRangeSelected(int begin, int end) { |
| for (int i = begin; i <= end; i++) { |
| assertSelected(i); |
| } |
| } |
| |
| public void assertRangeNotSelected(int begin, int end) { |
| for (int i = begin; i <= end; i++) { |
| assertNotSelected(i); |
| } |
| } |
| |
| public void assertRangeSelection(int begin, int end) { |
| assertSelectionSize(end - begin + 1); |
| assertRangeSelected(begin, end); |
| } |
| |
| public void assertSelectionSize(int expected) { |
| Selection<String> selection = mMgr.getSelection(); |
| assertEquals(selection.toString(), expected, selection.size()); |
| |
| mSelectionListener.assertSelectionSize(expected); |
| } |
| |
| public void assertNoSelection() { |
| assertSelectionSize(0); |
| |
| mSelectionListener.assertNoSelection(); |
| } |
| |
| public void assertSelection(int... ids) { |
| assertSelected(ids); |
| assertEquals(ids.length, mMgr.getSelection().size()); |
| |
| mSelectionListener.assertSelectionSize(ids.length); |
| } |
| |
| public void assertSelected(int... ids) { |
| Selection<String> sel = mMgr.getSelection(); |
| for (int id : ids) { |
| String sid = String.valueOf(id); |
| assertTrue(sid + " is not in selection " + sel, sel.contains(sid)); |
| |
| mSelectionListener.assertSelected(sid); |
| } |
| } |
| |
| public void assertNotSelected(int... ids) { |
| Selection<String> sel = mMgr.getSelection(); |
| for (int id : ids) { |
| String sid = String.valueOf(id); |
| assertFalse(sid + " is in selection " + sel, sel.contains(sid)); |
| |
| mSelectionListener.assertNotSelected(sid); |
| } |
| } |
| } |