package org.infinispan.atomic;
import org.infinispan.atomic.impl.AtomicHashMap;
import org.infinispan.atomic.impl.AtomicHashMapDelta;
import org.infinispan.test.AbstractInfinispanTest;
import org.testng.annotations.Test;
@Test(groups = "unit", testName = "atomic.AtomicHashMapTest")
public class AtomicHashMapTest extends AbstractInfinispanTest {
public void testDeltasWithEmptyMap() {
AtomicHashMap m = new AtomicHashMap();
Delta d = m.delta();
assert d instanceof NullDelta;
AtomicHashMap newMap = new AtomicHashMap();
newMap.initForWriting();
newMap.put("k", "v");
newMap = (AtomicHashMap) d.merge(newMap);
assert newMap.containsKey("k");
assert newMap.size() == 1;
newMap = (AtomicHashMap) d.merge(null);
assert newMap.isEmpty();
}
public void testDeltasWithNoChanges() {
AtomicHashMap m = new AtomicHashMap();
m.initForWriting();
m.put("k1", "v1");
m.commit();
assert m.size() == 1;
Delta d = m.delta();
assert d instanceof NullDelta;
AtomicHashMap newMap = new AtomicHashMap();
newMap.initForWriting();
newMap.put("k", "v");
newMap = (AtomicHashMap) d.merge(newMap);
assert newMap.containsKey("k");
assert newMap.size() == 1;
newMap = (AtomicHashMap) d.merge(null);
assert newMap.isEmpty();
}
public void testDeltasWithRepeatedChanges() {
AtomicHashMap m = new AtomicHashMap();
m.initForWriting();
m.put("k1", "v1");
m.put("k1", "v2");
m.put("k1", "v3");
assert m.size() == 1;
AtomicHashMapDelta d = (AtomicHashMapDelta) m.delta();
assert d.getChangeLogSize() != 0;
AtomicHashMap newMap = new AtomicHashMap();
newMap.initForWriting();
newMap.put("k1", "v4");
newMap = (AtomicHashMap) d.merge(newMap);
assert newMap.containsKey("k1");
assert newMap.get("k1").equals("v3");
assert newMap.size() == 1;
newMap = (AtomicHashMap) d.merge(null);
assert newMap.containsKey("k1");
assert newMap.get("k1").equals("v3");
assert newMap.size() == 1;
}
}