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1   package org.eclipse.aether.internal.impl;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   * 
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   * 
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import static org.junit.Assert.*;
23  
24  import org.junit.Test;
25  
26  public class PrioritizedComponentTest
27  {
28  
29      @Test
30      public void testIsDisabled()
31      {
32          assertTrue(new PrioritizedComponent<>( "", String.class, Float.NaN, 0 ).isDisabled() );
33          assertFalse(new PrioritizedComponent<>( "", String.class, 0, 0 ).isDisabled() );
34          assertFalse(new PrioritizedComponent<>( "", String.class, 1, 0 ).isDisabled() );
35          assertFalse(new PrioritizedComponent<>( "", String.class, -1, 0 ).isDisabled() );
36      }
37  
38      @Test
39      public void testCompareTo()
40      {
41          assertCompare( 0, Float.NaN, Float.NaN );
42          assertCompare( 0, 0, 0 );
43  
44          assertCompare( 1, 0, 1 );
45          assertCompare( 1, 2, Float.POSITIVE_INFINITY );
46          assertCompare( 1, Float.NEGATIVE_INFINITY, -3 );
47  
48          assertCompare( 1, Float.NaN, 0 );
49          assertCompare( 1, Float.NaN, -1 );
50          assertCompare( 1, Float.NaN, Float.NEGATIVE_INFINITY );
51          assertCompare( 1, Float.NaN, Float.POSITIVE_INFINITY );
52  
53          assertCompare( -1, Float.NaN, 0, 1 );
54          assertCompare( -1, 10, 0, 1 );
55      }
56  
57      private void assertCompare( int expected, float priority1, float priority2 )
58      {
59          PrioritizedComponent<?> one = new PrioritizedComponent<>( "", String.class, priority1, 0 );
60          PrioritizedComponent<?> two = new PrioritizedComponent<>( "", String.class, priority2, 0 );
61          assertEquals( expected, one.compareTo( two ) );
62          assertEquals( -expected, two.compareTo( one ) );
63      }
64  
65      private void assertCompare( int expected, float priority, int index1, int index2 )
66      {
67          PrioritizedComponent<?> one = new PrioritizedComponent<>( "", String.class, priority, index1 );
68          PrioritizedComponent<?> two = new PrioritizedComponent<>( "", String.class, priority, index2 );
69          assertEquals( expected, one.compareTo( two ) );
70          assertEquals( -expected, two.compareTo( one ) );
71      }
72  
73  }