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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @bug 8195649
* @summary Basic functional test of OptionalLong
* @author Mike Duigou
* @build ObscureException
* @run testng BasicLong
*/
import java.util.NoSuchElementException;
import java.util.OptionalLong;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.testng.Assert.*;
import org.testng.annotations.Test;
public class BasicLong {
static final long LONGVAL = 2_305_843_008_139_952_128L;
static final long UNEXPECTED = 0xFEEDBEEFCAFEBABEL;
/**
* Checks a block of assertions over an empty OptionalLong.
*/
void checkEmpty(OptionalLong empty) {
assertTrue(empty.equals(OptionalLong.empty()));
assertTrue(OptionalLong.empty().equals(empty));
assertFalse(empty.equals(OptionalLong.of(UNEXPECTED)));
assertFalse(OptionalLong.of(UNEXPECTED).equals(empty));
assertFalse(empty.equals("unexpected"));
assertFalse(empty.isPresent());
assertTrue(empty.isEmpty());
assertEquals(empty.hashCode(), 0);
assertEquals(empty.orElse(UNEXPECTED), UNEXPECTED);
assertEquals(empty.orElseGet(() -> UNEXPECTED), UNEXPECTED);
assertThrows(NoSuchElementException.class, () -> empty.getAsLong());
assertThrows(NoSuchElementException.class, () -> empty.orElseThrow());
assertThrows(ObscureException.class, () -> empty.orElseThrow(ObscureException::new));
var b = new AtomicBoolean();
empty.ifPresent(s -> b.set(true));
assertFalse(b.get());
var b1 = new AtomicBoolean(false);
var b2 = new AtomicBoolean(false);
empty.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true));
assertFalse(b1.get());
assertTrue(b2.get());
assertEquals(empty.toString(), "OptionalLong.empty");
}
/**
* Checks a block of assertions over an OptionalLong that is expected to
* have a particular value present.
*/
void checkPresent(OptionalLong opt, long expected) {
assertFalse(opt.equals(OptionalLong.empty()));
assertFalse(OptionalLong.empty().equals(opt));
assertTrue(opt.equals(OptionalLong.of(expected)));
assertTrue(OptionalLong.of(expected).equals(opt));
assertFalse(opt.equals(OptionalLong.of(UNEXPECTED)));
assertFalse(OptionalLong.of(UNEXPECTED).equals(opt));
assertFalse(opt.equals("unexpected"));
assertTrue(opt.isPresent());
assertFalse(opt.isEmpty());
assertEquals(opt.hashCode(), Long.hashCode(expected));
assertEquals(opt.orElse(UNEXPECTED), expected);
assertEquals(opt.orElseGet(() -> UNEXPECTED), expected);
assertEquals(opt.getAsLong(), expected);
assertEquals(opt.orElseThrow(), expected);
assertEquals(opt.orElseThrow(ObscureException::new), expected);
var b = new AtomicBoolean(false);
opt.ifPresent(s -> b.set(true));
assertTrue(b.get());
var b1 = new AtomicBoolean(false);
var b2 = new AtomicBoolean(false);
opt.ifPresentOrElse(s -> b1.set(true), () -> b2.set(true));
assertTrue(b1.get());
assertFalse(b2.get());
assertEquals(opt.toString(), "OptionalLong[" + expected + "]");
}
@Test(groups = "unit")
public void testEmpty() {
checkEmpty(OptionalLong.empty());
}
@Test(groups = "unit")
public void testPresent() {
checkPresent(OptionalLong.of(LONGVAL), LONGVAL);
}
@Test(groups = "unit")
public void testStreamEmpty() {
assertEquals(OptionalLong.empty().stream().toArray(), new long[] { });
}
@Test(groups = "unit")
public void testStreamPresent() {
assertEquals(OptionalLong.of(LONGVAL).stream().toArray(), new long[] { LONGVAL });
}
}
|
