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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   https://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.commons.compress.utils;
21  
22  import static org.junit.jupiter.api.Assertions.assertEquals;
23  
24  import java.nio.charset.Charset;
25  import java.nio.charset.StandardCharsets;
26  
27  import org.junit.jupiter.api.Test;
28  
29  /**
30   * Sanity checks for {@link Charsets}.
31   */
32  class CharsetsTest {
33  
34      @Test
35      void testToCharset() {
36          assertEquals(Charset.defaultCharset(), Charsets.toCharset((String) null));
37          assertEquals(Charset.defaultCharset(), Charsets.toCharset((Charset) null));
38          assertEquals(Charset.defaultCharset(), Charsets.toCharset(Charset.defaultCharset()));
39          assertEquals(StandardCharsets.UTF_8, Charsets.toCharset(StandardCharsets.UTF_8));
40          assertEquals(StandardCharsets.UTF_8, StandardCharsets.UTF_8);
41      }
42  
43  }