1/*
2 * Copyright 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package androidx.recyclerview.selection;
18
19import static org.junit.Assert.assertEquals;
20
21import android.os.Bundle;
22import android.support.test.filters.SmallTest;
23import android.support.test.runner.AndroidJUnit4;
24
25import androidx.recyclerview.selection.testing.Bundles;
26import androidx.recyclerview.selection.testing.SelectionTrackers;
27
28import org.junit.Before;
29import org.junit.Test;
30import org.junit.runner.RunWith;
31
32/**
33 * Tests guaranteeing that two distinct selections can be stored side-by-side.
34 */
35@RunWith(AndroidJUnit4.class)
36@SmallTest
37public final class SelectionTracker_InstanceStateTest {
38
39    private SelectionTracker<String> mStringTracker;
40    private SelectionTracker<Long> mLongTracker;
41
42    private Bundle mBundle;
43
44    @Before
45    public void setUp() {
46        mStringTracker = SelectionTrackers.createStringTracker("tracker-isolation-strings", 100);
47        mLongTracker = SelectionTrackers.createLongTracker("tracker-isolation-longs", 1000);
48        mBundle = new Bundle();
49    }
50
51    @Test
52    public void testMaintainsDistinctSelections() {
53        mStringTracker.select("3");
54        mStringTracker.select("13");
55        mStringTracker.select("33");
56
57        mLongTracker.select(100L);
58        mLongTracker.select(200L);
59        mLongTracker.select(300L);
60
61        MutableSelection<String> origStrings = new MutableSelection<>();
62        MutableSelection<Long> origLongs = new MutableSelection<>();
63
64        mStringTracker.copySelection(origStrings);
65        mLongTracker.copySelection(origLongs);
66
67        mStringTracker.onSaveInstanceState(mBundle);
68        mLongTracker.onSaveInstanceState(mBundle);
69
70        Bundle parceled = Bundles.forceParceling(mBundle);
71
72        mStringTracker.clearSelection();
73        mLongTracker.clearSelection();
74
75        mStringTracker.onRestoreInstanceState(parceled);
76        mLongTracker.onRestoreInstanceState(parceled);
77
78        assertEquals(origStrings, mStringTracker.getSelection());
79        assertEquals(origLongs, mLongTracker.getSelection());
80    }
81}
82