package org.infinispan.util;
import org.infinispan.commons.hash.Hash;
import org.infinispan.commons.hash.MurmurHash2;
import org.infinispan.commons.hash.MurmurHash2Compat;
import org.infinispan.commons.hash.MurmurHash3;
import org.infinispan.test.AbstractInfinispanTest;
import org.testng.annotations.Test;
@Test(testName = "util.HashFunctionTest", groups = "unit")
public class HashFunctionTest extends AbstractInfinispanTest {
public void testMurmurHash2Consistency() {
testHashConsistency(new MurmurHash2());
}
public void testMurmurHash2CompatConsistency() {
testHashConsistency(new MurmurHash2Compat());
}
public void testMurmurHash3Consistency() {
testHashConsistency(new MurmurHash3());
}
private void testHashConsistency(Hash hash) {
Object o = new Object();
int i1 = hash.hash(o);
int i2 = hash.hash(o);
int i3 = hash.hash(o);
assert i1 == i2: "i1 and i2 are not the same: " + i1 + ", " + i2;
assert i3 == i2: "i3 and i2 are not the same: " + i2 + ", " + i3;
assert i1 == i3: "i1 and i3 are not the same: " + i1 + ", " + i3;
}
}