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
132
133
134
135
136
137
138
139
140
141
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.commons.lang3.function;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
import java.util.function.Supplier;
import org.apache.commons.lang3.AbstractLangTest;
import org.junit.jupiter.api.Test;
public class ObjectsTest extends AbstractLangTest {
public static class TestableFailableSupplier<O, E extends Exception> implements FailableSupplier<O, E> {
private final FailableSupplier<O, E> supplier;
private boolean invoked;
TestableFailableSupplier(final FailableSupplier<O, E> pSupplier) {
this.supplier = pSupplier;
}
@Override
public O get() throws E {
invoked = true;
return supplier.get();
}
public boolean isInvoked() {
return invoked;
}
}
public static class TestableSupplier<O> implements Supplier<O> {
private final Supplier<O> supplier;
private boolean invoked;
TestableSupplier(final Supplier<O> pSupplier) {
this.supplier = pSupplier;
}
@Override
public O get() {
invoked = true;
return supplier.get();
}
public boolean isInvoked() {
return invoked;
}
}
@Test
void testRequireNonNullObject() {
assertSame("foo", Objects.requireNonNull("foo"));
try {
Objects.requireNonNull(null);
fail("Expected Exception");
} catch (final NullPointerException e) {
assertEquals("The value must not be null.", e.getMessage());
}
}
@Test
void testRequireNonNullObjectFailableSupplierString() {
final TestableFailableSupplier<String, ?> supplier = new TestableFailableSupplier<>(() -> null);
assertSame("foo", Objects.requireNonNull("foo", supplier));
assertFalse(supplier.isInvoked());
try {
Objects.requireNonNull(null, supplier);
fail("Expected Exception");
} catch (final NullPointerException e) {
assertEquals("The supplier must not return null.", e.getMessage());
assertTrue(supplier.isInvoked());
}
final TestableFailableSupplier<String, ?> supplier2 = new TestableFailableSupplier<>(() -> null);
try {
Objects.requireNonNull(null, supplier2);
fail("Expected Exception");
} catch (final NullPointerException e) {
assertEquals("The supplier must not return null.", e.getMessage());
assertTrue(supplier2.isInvoked());
}
final TestableFailableSupplier<String, ?> supplier3 = new TestableFailableSupplier<>(() -> "bar");
assertSame("bar", Objects.requireNonNull(null, supplier3));
final RuntimeException rte = new RuntimeException();
final TestableFailableSupplier<String, ?> supplier4 = new TestableFailableSupplier<>(() -> {
throw rte;
});
try {
Objects.requireNonNull(null, supplier4);
fail("Expected Exception");
} catch (final RuntimeException e) {
assertSame(rte, e);
assertTrue(supplier4.isInvoked());
}
}
@Test
void testRequireNonNullObjectString() {
assertSame("foo", Objects.requireNonNull("foo", "bar"));
try {
Objects.requireNonNull(null, "bar");
fail("Expected Exception");
} catch (final NullPointerException e) {
assertEquals("bar", e.getMessage());
}
}
@Test
void testRequireNonNullObjectSupplierString() {
final TestableSupplier<String> supplier = new TestableSupplier<>(() -> "bar");
assertSame("foo", Objects.requireNonNull("foo", supplier));
assertFalse(supplier.isInvoked());
try {
Objects.requireNonNull(null, supplier);
fail("Expected Exception");
} catch (final NullPointerException e) {
assertEquals("bar", e.getMessage());
assertTrue(supplier.isInvoked());
}
}
}
|
