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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   * http://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  package org.apache.commons.lang3;
20  
21  import static org.junit.jupiter.api.Assertions.assertEquals;
22  import static org.junit.jupiter.api.Assertions.assertFalse;
23  import static org.junit.jupiter.api.Assertions.assertTrue;
24  
25  import org.junit.jupiter.api.Test;
26  
27  /**
28   * Unit tests {@link JavaVersion}.
29   */
30  public class JavaVersionTest extends AbstractLangTest {
31  
32      @Test
33      public void testAtLeast() {
34          assertFalse(JavaVersion.JAVA_1_2.atLeast(JavaVersion.JAVA_1_5), "1.2 at least 1.5 passed");
35          assertTrue(JavaVersion.JAVA_1_5.atLeast(JavaVersion.JAVA_1_2), "1.5 at least 1.2 failed");
36          assertFalse(JavaVersion.JAVA_1_6.atLeast(JavaVersion.JAVA_1_7), "1.6 at least 1.7 passed");
37  
38          assertTrue(JavaVersion.JAVA_0_9.atLeast(JavaVersion.JAVA_1_5), "0.9 at least 1.5 failed");
39          assertFalse(JavaVersion.JAVA_0_9.atLeast(JavaVersion.JAVA_1_6), "0.9 at least 1.6 passed");
40      }
41  
42      @Test
43      public void testGetJavaVersion() throws Exception {
44          assertEquals(JavaVersion.JAVA_0_9, JavaVersion.get("0.9"), "0.9 failed");
45          assertEquals(JavaVersion.JAVA_1_1, JavaVersion.get("1.1"), "1.1 failed");
46          assertEquals(JavaVersion.JAVA_1_2, JavaVersion.get("1.2"), "1.2 failed");
47          assertEquals(JavaVersion.JAVA_1_3, JavaVersion.get("1.3"), "1.3 failed");
48          assertEquals(JavaVersion.JAVA_1_4, JavaVersion.get("1.4"), "1.4 failed");
49          assertEquals(JavaVersion.JAVA_1_5, JavaVersion.get("1.5"), "1.5 failed");
50          assertEquals(JavaVersion.JAVA_1_6, JavaVersion.get("1.6"), "1.6 failed");
51          assertEquals(JavaVersion.JAVA_1_7, JavaVersion.get("1.7"), "1.7 failed");
52          assertEquals(JavaVersion.JAVA_1_8, JavaVersion.get("1.8"), "1.8 failed");
53          assertEquals(JavaVersion.JAVA_9, JavaVersion.get("9"));
54          assertEquals(JavaVersion.JAVA_10, JavaVersion.get("10"));
55          assertEquals(JavaVersion.JAVA_11, JavaVersion.get("11"));
56          assertEquals(JavaVersion.JAVA_12, JavaVersion.get("12"));
57          assertEquals(JavaVersion.JAVA_13, JavaVersion.get("13"));
58          assertEquals(JavaVersion.JAVA_14, JavaVersion.get("14"));
59          assertEquals(JavaVersion.JAVA_15, JavaVersion.get("15"));
60          assertEquals(JavaVersion.JAVA_16, JavaVersion.get("16"));
61          assertEquals(JavaVersion.JAVA_17, JavaVersion.get("17"));
62          assertEquals(JavaVersion.JAVA_18, JavaVersion.get("18"));
63          assertEquals(JavaVersion.JAVA_19, JavaVersion.get("19"));
64          assertEquals(JavaVersion.JAVA_20, JavaVersion.get("20"));
65          assertEquals(JavaVersion.JAVA_21, JavaVersion.get("21"));
66          assertEquals(JavaVersion.JAVA_22, JavaVersion.get("22"));
67  
68          assertEquals(JavaVersion.JAVA_RECENT, JavaVersion.get("1.10"), "1.10 failed");
69          // assertNull("2.10 unexpectedly worked", JavaVersion.get("2.10"));
70          assertEquals(JavaVersion.get("1.5"), JavaVersion.getJavaVersion("1.5"), "Wrapper method failed");
71          assertEquals(JavaVersion.JAVA_RECENT, JavaVersion.get("23"), "Unhandled"); // LANG-1384
72      }
73  
74      @Test
75      public void testToString() {
76          assertEquals("1.2", JavaVersion.JAVA_1_2.toString());
77      }
78  
79  }