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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cayenne;
import org.junit.Test;
import java.util.HashSet;
import java.util.Set;
import static org.junit.Assert.assertTrue;
public class ObjectIdRegressionTest {
// public void testX() {
// for (int i = 0; i < 10000; i++) {
// byte[] bytes = IDUtil.pseudoUniqueByteSequence8();
// StringBuffer buffer = new StringBuffer(16);
// for(int j = 0; j < 8; j++) {
// IDUtil.appendFormattedByte(buffer, bytes[j]);
// }
//
// System.out.println(buffer);
// }
// }
@Test
public void testIdPool() throws Exception {
// testing uniqueness of a sequence of ObjectIds generated quickly one after the
// other...
int size = 100000;
new ObjectId("Artist");
Object[] pool = new Object[size];
long t0 = System.currentTimeMillis();
// fill in
for (int i = 0; i < size; i++) {
pool[i] = new ObjectId("Artist");
}
long t1 = System.currentTimeMillis();
assertTrue("This machine is too fast to run such test!", t1 - t0 > 1);
Set idSet = new HashSet();
for (int i = 0; i < size; i++) {
assertTrue("Failed to generate unique id #" + i, idSet.add(pool[i]));
}
}
}