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.text.lookup;
19
20 import org.junit.jupiter.api.Assertions;
21 import org.junit.jupiter.api.Test;
22
23 /**
24 * Tests {@link StringLookupFactory#INSTANCE_NULL}.
25 */
26 class NullStringLookupTest {
27
28 @Test
29 void test() {
30 Assertions.assertNull(StringLookupFactory.INSTANCE_NULL.apply("EverythingIsNull"));
31 Assertions.assertNull(StringLookupFactory.INSTANCE_NULL.apply(null));
32 }
33
34 @Test
35 void testToString() {
36 // does not blow up and gives some kind of string.
37 Assertions.assertFalse(StringLookupFactory.INSTANCE_NULL.toString().isEmpty());
38 }
39
40 }