1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright (C) 2017-2022 Sebastiano Vigna
*
* 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 it.unimi.dsi.fastutil.ints;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import org.junit.Test;
import it.unimi.dsi.fastutil.ints.Int2IntMap.Entry;
import it.unimi.dsi.fastutil.objects.ObjectIterable;
import it.unimi.dsi.fastutil.objects.ObjectIterator;
public class Int2IntMapsTest {
@SuppressWarnings("boxing")
@Test
public void testSingletonMapEqualsShouldCheckTheTypeOfParamters() {
final Int2IntMap map = Int2IntMaps.singleton(1, 2);
assertFalse(map.equals(Collections.singletonMap(null, 2)));
assertFalse(map.equals(Collections.singletonMap(1, null)));
assertFalse(map.equals(Collections.singletonMap("foo", 2)));
assertFalse(map.equals(Collections.singletonMap(1, "foo")));
}
@Test
public void testToArrayShouldNullElementAfterLastEntry() {
final Int2IntMap map = Int2IntMaps.EMPTY_MAP;
final Object[] values = new Object[] { "test" };
map.int2IntEntrySet().toArray(values);
assertNull(values[0]);
}
@Test
public void testReadingDefaultReturnValueFromUnmodifiableMap() {
final Int2IntMap map = Int2IntMaps.unmodifiable(Int2IntMaps.EMPTY_MAP);
assert(map.defaultReturnValue() == 0);
}
@Test
public void testFastIteratorHelpers() {
final Int2IntMap m = new Int2IntOpenHashMap();
m.put(0, 0);
m.put(1, 1);
ObjectIterator<Entry> fastIterator = Int2IntMaps.fastIterator(m);
Entry e = fastIterator.next();
assertSame(e, fastIterator.next());
final ObjectIterable<Entry> fastIterable = Int2IntMaps.fastIterable(m);
fastIterator = fastIterable.iterator();
e = fastIterator.next();
assertSame(e, fastIterator.next());
final Set<Entry> s = new HashSet<>();
Int2IntMaps.fastIterable(m).forEach(s::add);
assertEquals(1, s.size()); // Should be always the same entry, mutated
}
}
|
