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.assertFalse;
21 import static org.junit.jupiter.api.Assertions.assertTrue;
22
23 import java.util.function.Predicate;
24
25 import org.junit.jupiter.api.Test;
26
27 /**
28 * Tests {@link Predicates}.
29 */
30 class PredicatesTest {
31
32 @Test
33 void testFalsePredicate() {
34 assertFalse(Predicates.falsePredicate().test(null));
35 assertFalse(Predicates.falsePredicate().test(new Object()));
36 final Predicate<String> stringPredicate = Predicates.falsePredicate();
37 assertFalse(stringPredicate.test(null));
38 assertFalse(stringPredicate.test(""));
39 }
40
41 @Test
42 void testTruePredicate() {
43 assertTrue(Predicates.truePredicate().test(null));
44 assertTrue(Predicates.truePredicate().test(new Object()));
45 final Predicate<String> stringPredicate = Predicates.truePredicate();
46 assertTrue(stringPredicate.test(null));
47 assertTrue(stringPredicate.test(""));
48 }
49 }