src/test/java/com/thinkaurelius/titan/diskstorage/cassandra/UUIDTest.java

   1 package com.thinkaurelius.titan.diskstorage.cassandra;
   2
   3 import org.apache.cassandra.db.marshal.TimeUUIDType;
   4 import org.junit.Test;
   5 import org.junit.experimental.categories.Category;
   6
   7 import com.thinkaurelius.titan.testcategory.StandaloneTests;
   8
   9 import java.nio.ByteBuffer;
  10 import java.util.UUID;
  11
  12 import static org.junit.Assert.assertEquals;
  13
  14 @Category({StandaloneTests.class})
  15 public class UUIDTest {
  16     public static final String z = "00000000-0000-1000-0000-000000000000";
  17     public static final String v = "9451e273-7753-11e0-92df-e700f669bcfc";
  18
  19     @Test
  20     public void timeUUIDComparison() {
  21         TimeUUIDType ti = TimeUUIDType.instance;
  22
  23         UUID zu = UUID.fromString(z);
  24         UUID vu = UUID.fromString(v);
  25
  26         ByteBuffer zb = ti.decompose(zu);
  27         ByteBuffer vb = ti.decompose(vu);
  28
  29         assertEquals(-1, ti.compare(zb, vb));
  30         assertEquals(1, zu.compareTo(vu));
  31         assertEquals(1, ti.compare(vb, zb));
  32         assertEquals(-1, vu.compareTo(zu));
  33     }
  34 }