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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.apache.commons.lang3.JavaVersion.JAVA_0_9;
22  import static org.apache.commons.lang3.JavaVersion.JAVA_1_1;
23  import static org.apache.commons.lang3.JavaVersion.JAVA_1_2;
24  import static org.apache.commons.lang3.JavaVersion.JAVA_1_3;
25  import static org.apache.commons.lang3.JavaVersion.JAVA_1_4;
26  import static org.apache.commons.lang3.JavaVersion.JAVA_1_5;
27  import static org.apache.commons.lang3.JavaVersion.JAVA_1_6;
28  import static org.apache.commons.lang3.JavaVersion.JAVA_1_7;
29  import static org.apache.commons.lang3.JavaVersion.JAVA_1_8;
30  import static org.apache.commons.lang3.JavaVersion.JAVA_RECENT;
31  import static org.apache.commons.lang3.JavaVersion.get;
32  import static org.apache.commons.lang3.JavaVersion.getJavaVersion;
33  import static org.junit.jupiter.api.Assertions.assertEquals;
34  import static org.junit.jupiter.api.Assertions.assertFalse;
35  import static org.junit.jupiter.api.Assertions.assertTrue;
36  
37  import org.junit.jupiter.api.Test;
38  
39  /**
40   * Unit tests {@link org.apache.commons.lang3.JavaVersion}.
41   */
42  public class JavaVersionTest extends AbstractLangTest {
43  
44      @Test
45      public void testAtLeast() {
46          assertFalse(JAVA_1_2.atLeast(JAVA_1_5), "1.2 at least 1.5 passed");
47          assertTrue(JAVA_1_5.atLeast(JAVA_1_2), "1.5 at least 1.2 failed");
48          assertFalse(JAVA_1_6.atLeast(JAVA_1_7), "1.6 at least 1.7 passed");
49  
50          assertTrue(JAVA_0_9.atLeast(JAVA_1_5), "0.9 at least 1.5 failed");
51          assertFalse(JAVA_0_9.atLeast(JAVA_1_6), "0.9 at least 1.6 passed");
52      }
53  
54      @Test
55      public void testGetJavaVersion() throws Exception {
56          assertEquals(JAVA_0_9, get("0.9"), "0.9 failed");
57          assertEquals(JAVA_1_1, get("1.1"), "1.1 failed");
58          assertEquals(JAVA_1_2, get("1.2"), "1.2 failed");
59          assertEquals(JAVA_1_3, get("1.3"), "1.3 failed");
60          assertEquals(JAVA_1_4, get("1.4"), "1.4 failed");
61          assertEquals(JAVA_1_5, get("1.5"), "1.5 failed");
62          assertEquals(JAVA_1_6, get("1.6"), "1.6 failed");
63          assertEquals(JAVA_1_7, get("1.7"), "1.7 failed");
64          assertEquals(JAVA_1_8, get("1.8"), "1.8 failed");
65  
66          int lastSupportedVersion = Integer.parseInt(JavaVersion.values()[JavaVersion.values().length - 2].toString());
67          for (int i = 9; i <= lastSupportedVersion; i++) {
68              assertEquals(JavaVersion.class.getField("JAVA_" + i).get(null), get("" + i), i + " failed");
69          }
70  
71          assertEquals(JAVA_RECENT, get("1.10"), "1.10 failed");
72          // assertNull("2.10 unexpectedly worked", get("2.10"));
73          assertEquals(get("1.5"), getJavaVersion("1.5"), "Wrapper method failed");
74          assertEquals(JAVA_RECENT, get("22"), "Unhandled"); // LANG-1384
75      }
76  
77      @Test
78      public void testToString() {
79          assertEquals("1.2", JAVA_1_2.toString());
80      }
81  
82  }