1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.lang3.function;
19
20 import static org.junit.jupiter.api.Assertions.assertTrue;
21
22 import java.util.concurrent.atomic.AtomicBoolean;
23 import java.util.function.Consumer;
24 import java.util.stream.Stream;
25
26 import org.apache.commons.lang3.AbstractLangTest;
27 import org.junit.jupiter.api.Test;
28
29 /**
30 * Tests {@link Consumers}.
31 */
32 class ConsumersTest extends AbstractLangTest {
33
34 /**
35 * Tests {@link Consumers#accept(Consumer, Object)}.
36 */
37 @Test
38 void testAccept() {
39 final AtomicBoolean bool = new AtomicBoolean();
40 Consumers.accept(bool::set, true);
41 assertTrue(bool.get());
42 Consumers.accept(null, "");
43 Consumers.accept(null, null);
44 }
45
46 /**
47 * Tests {@link Consumers#nop()}.
48 */
49 @Test
50 void testNop() {
51 Stream.of("").forEach(Consumers.nop());
52 //
53 final Consumer<?> c1 = Consumers.nop();
54 c1.accept(null);
55 final Consumer<Object> c2 = Consumers.nop();
56 c2.accept(null);
57 final Consumer<String> c3 = Consumers.nop();
58 c3.accept(null);
59 //
60 Consumers.nop().accept(null);
61 Consumers.nop().accept("");
62 }
63 }