Aprog/test/net/sourceforge/aprog/tools/SystemPropertiesTest.java

   1 /*
   2  *  The MIT License
   3  *
   4  *  Copyright 2010 Codist Monk.
   5  *
   6  *  Permission is hereby granted, free of charge, to any person obtaining a copy
   7  *  of this software and associated documentation files (the "Software"), to deal
   8  *  in the Software without restriction, including without limitation the rights
   9  *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  *  copies of the Software, and to permit persons to whom the Software is
  11  *  furnished to do so, subject to the following conditions:
  12  *
  13  *  The above copyright notice and this permission notice shall be included in
  14  *  all copies or substantial portions of the Software.
  15  *
  16  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  *  THE SOFTWARE.
  23  */
  24
  25 package net.sourceforge.aprog.tools;
  26
  27 import static org.junit.Assert.*;
  28
  29 import java.lang.reflect.Field;
  30 import java.util.HashSet;
  31 import java.util.Set;
  32
  33 import net.sourceforge.aprog.tools.SystemProperties.MaybeNull;
  34
  35 import org.junit.Test;
  36
  37 /**
  38  * Automated tests using JUnit 4 for {@link SystemProperties}.
  39  *
  40  * @author codistmonk (creation 2010-10-24)
  41  */
  42 public final class SystemPropertiesTest {
  43
  44     @Test
  45     public final void testKeys() throws Exception {
  46         final Set<String> keys = new HashSet<String>();
  47
  48         for (final Field field : SystemProperties.class.getFields()) {
  49             if (String.class.equals(field.getType()) && field.getAnnotation(MaybeNull.class) == null) {
  50                 final String key = field.get(null).toString();
  51                 final String fieldSummary = field.getName() + " " + key;
  52
  53                 assertTrue("Duplicate property " + fieldSummary, !keys.contains(key));
  54
  55                 keys.add(key);
  56
  57                 assertNotNull("Null property " + fieldSummary, System.getProperty(key));
  58             }
  59         }
  60     }
  61
  62     @Test
  63     public final void testGetAvailableProcessorCount() {
  64         final int processorCount = SystemProperties.getAvailableProcessorCount();
  65
  66         assertTrue("Processor count " + processorCount, 0 <= SystemProperties.getAvailableProcessorCount());
  67     }
  68
  69     @Test
  70     public final void testGetJavaIOTemporaryDirectory() {
  71         assertNotNull(SystemProperties.getJavaIOTemporaryDirectory());
  72     }
  73
  74     @Test
  75     public final void testGetFilePathSeparator() {
  76         assertNotNull(SystemProperties.getFilePathSeparator());
  77     }
  78
  79     @Test
  80     public final void testGetFileSeparator() {
  81         assertNotNull(SystemProperties.getFileSeparator());
  82     }
  83
  84     @Test
  85     public final void testGetLineSeparator() {
  86         assertNotNull(SystemProperties.getLineSeparator());
  87     }
  88
  89     @Test
  90     public final void testGetOSName() {
  91         assertNotNull(SystemProperties.getOSName());
  92     }
  93
  94 }