cadi/core/src/test/java/org/onap/aaf/cadi/util/test/JU_Pool.java

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  21 package org.onap.aaf.cadi.util.test;
  22
  23 import static org.junit.Assert.*;
  24
  25 import java.util.ArrayList;
  26 import java.util.List;
  27
  28 import static org.hamcrest.CoreMatchers.*;
  29 import org.junit.*;
  30 import org.onap.aaf.cadi.CadiException;
  31 import org.onap.aaf.cadi.util.Pool;
  32 import org.onap.aaf.cadi.util.Pool.*;
  33
  34 public class JU_Pool {
  35
  36         private StringBuilder sb = new StringBuilder();
  37
  38         private class IntegerCreator implements Creator<Integer> {
  39                 private int current = 0;
  40
  41                 @Override
  42                 public Integer create() {
  43                         return current++;
  44                 }
  45
  46                 @Override
  47                 public void destroy(Integer t) {
  48                         t = 0;
  49                 }
  50
  51                 @Override
  52                 public boolean isValid(Integer t) {
  53                         return (t & 0x1) == 0;
  54                 }
  55
  56                 @Override
  57                 public void reuse(Integer t) {
  58                 }
  59         }
  60
  61         private class CustomLogger implements Log {
  62                 @Override
  63                 public void log(Object... o) {
  64                         for (Object item : o) {
  65                                 sb.append(item.toString());
  66                         }
  67                 }
  68         }
  69
  70         @Test
  71         public void getTest() throws CadiException {
  72                 Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
  73
  74                 List<Pooled<Integer>> gotten = new ArrayList<Pooled<Integer>>();
  75                 for (int i = 0; i < 10; i++) {
  76                         gotten.add(intPool.get());
  77                         assertThat(gotten.get(i).content, is(i));
  78                 }
  79
  80                 gotten.get(9).done();
  81                 gotten.set(9, intPool.get());
  82                 assertThat(gotten.get(9).content, is(9));
  83
  84                 for (int i = 0; i < 10; i++) {
  85                         gotten.get(i).done();
  86                 }
  87
  88                 for (int i = 0; i < 10; i++) {
  89                         gotten.set(i, intPool.get());
  90                         if (i < 5) {
  91                                 assertThat(gotten.get(i).content, is(i));
  92                         } else {
  93                                 assertThat(gotten.get(i).content, is(i + 5));
  94                         }
  95                 }
  96
  97                 for (int i = 0; i < 10; i++) {
  98                         gotten.get(i).toss();
  99                         // Coverage calls
 100                         gotten.get(i).toss();
 101                         gotten.get(i).done();
 102
 103                         // only set some objects to null -> this is for the finalize coverage test
 104                         if (i < 5) {
 105                                 gotten.set(i, null);
 106                         }
 107                 }
 108
 109                 // Coverage of finalize()
 110                 System.gc();
 111         }
 112
 113         @Test
 114         public void bulkTest() throws CadiException {
 115                 Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
 116
 117                 intPool.prime(10);
 118                 // Remove all of the invalid items (in this case, odd numbers)
 119                 assertFalse(intPool.validate());
 120
 121                 // Make sure we got them all
 122                 assertTrue(intPool.validate());
 123
 124                 // Get an item from the pool
 125                 Pooled<Integer> gotten = intPool.get();
 126                 assertThat(gotten.content, is(0));
 127
 128                 // finalize that item, then check the next one to make sure we actually purged
 129                 // the odd numbers
 130                 gotten = intPool.get();
 131                 assertThat(gotten.content, is(2));
 132
 133                 intPool.drain();
 134
 135         }
 136
 137         @Test
 138         public void setMaxTest() {
 139                 Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
 140                 intPool.setMaxRange(10);
 141                 assertThat(intPool.getMaxRange(), is(10));
 142                 intPool.setMaxRange(-10);
 143                 assertThat(intPool.getMaxRange(), is(0));
 144         }
 145
 146         @Test
 147         public void loggingTest() {
 148                 Pool<Integer> intPool = new Pool<Integer>(new IntegerCreator());
 149
 150                 // Log to Log.NULL for coverage
 151                 intPool.log("Test log output");
 152
 153                 intPool.setLogger(new CustomLogger());
 154                 intPool.log("Test log output");
 155
 156                 assertThat(sb.toString(), is("Test log output"));
 157         }
 158
 159 }