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package org.apache.cayenne.query;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.remote.hessian.service.HessianUtil;
import org.junit.Test;
public class PrefetchTreeNodeTest {
@Test
public void testTreeSerializationWithHessian() throws Exception {
PrefetchTreeNode n1 = new PrefetchTreeNode();
PrefetchTreeNode n2 = n1.addPath("abc");
PrefetchTreeNode nc1 = (PrefetchTreeNode) HessianUtil.cloneViaClientServerSerialization(n1,
new EntityResolver());
assertNotNull(nc1);
PrefetchTreeNode nc2 = nc1.getNode("abc");
assertNotNull(nc2);
assertNotSame(nc2, n2);
assertSame(nc1, nc2.getParent());
assertEquals("abc", nc2.getName());
}
@Test
public void testSubtreeSerializationWithHessian() throws Exception {
PrefetchTreeNode n1 = new PrefetchTreeNode();
PrefetchTreeNode n2 = n1.addPath("abc");
PrefetchTreeNode n3 = n2.addPath("xyz");
// test that substree was serialized as independent tree, instead of
// sucking
PrefetchTreeNode nc2 = (PrefetchTreeNode) HessianUtil.cloneViaClientServerSerialization(n2,
new EntityResolver());
assertNotNull(nc2);
assertNull(nc2.getParent());
PrefetchTreeNode nc3 = nc2.getNode("xyz");
assertNotNull(nc3);
assertNotSame(nc3, n3);
assertSame(nc2, nc3.getParent());
assertEquals("xyz", nc3.getName());
}
@Test
public void testMerge() {
PrefetchTreeNode original = new PrefetchTreeNode();
original.addPath("a").setPhantom(true);
original.addPath("a.b").setSemantics(PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);
original.addPath("a.b").setPhantom(false);
original.addPath("c").setSemantics(PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS);
original.addPath("c").setPhantom(false);
original.addPath("f").setSemantics(PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS);
original.addPath("f").setPhantom(false);
PrefetchTreeNode toMerge = new PrefetchTreeNode();
toMerge.addPath("a").setPhantom(false);
toMerge.addPath("a.b").setSemantics(PrefetchTreeNode.DISJOINT_BY_ID_PREFETCH_SEMANTICS);
toMerge.addPath("d.e").setSemantics(PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS);
toMerge.addPath("d.e").setPhantom(false);
toMerge.addPath("c").setSemantics(PrefetchTreeNode.UNDEFINED_SEMANTICS);
original.merge(toMerge);
assertSame(original, original.getRoot());
assertEquals(4, original.getChildren().size());
PrefetchTreeNode mergedA = original.getChild("a");
assertEquals(1, mergedA.getChildren().size());
assertFalse("Phantom flag wasn't turned off", mergedA.isPhantom());
assertEquals(PrefetchTreeNode.UNDEFINED_SEMANTICS, mergedA.getSemantics());
PrefetchTreeNode mergedB = mergedA.getChild("b");
assertEquals(0, mergedB.getChildren().size());
assertFalse(mergedB.isPhantom());
assertEquals("Semantics was't merged", PrefetchTreeNode.DISJOINT_BY_ID_PREFETCH_SEMANTICS,
mergedB.getSemantics());
PrefetchTreeNode mergedC = original.getChild("c");
assertEquals(0, mergedC.getChildren().size());
assertFalse(mergedC.isPhantom());
assertEquals("Semantics was overridden to undefined", PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS,
mergedC.getSemantics());
PrefetchTreeNode mergedD = original.getChild("d");
assertEquals(1, mergedD.getChildren().size());
assertTrue(mergedD.isPhantom());
assertEquals(PrefetchTreeNode.UNDEFINED_SEMANTICS, mergedD.getSemantics());
assertNotSame("Merged node wasn't cloned", toMerge.getChild("d"), mergedD);
PrefetchTreeNode mergedE = mergedD.getChild("e");
assertEquals(0, mergedE.getChildren().size());
assertFalse(mergedE.isPhantom());
assertEquals(PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS, mergedE.getSemantics());
PrefetchTreeNode mergedF = original.getChild("f");
assertEquals(0, mergedF.getChildren().size());
assertFalse(mergedF.isPhantom());
assertEquals(PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS, mergedF.getSemantics());
}
@Test
public void testMerge_NonRoot() {
PrefetchTreeNode original = new PrefetchTreeNode();
original.addPath("a").setPhantom(true);
original.addPath("a.b").setSemantics(PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);
original.addPath("a.b").setPhantom(false);
PrefetchTreeNode toMerge = new PrefetchTreeNode(null, "a.b.c");
toMerge.setPhantom(false);
toMerge.setSemantics(PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS);
original.merge(toMerge);
assertSame(original, original.getRoot());
assertEquals(1, original.getChildren().size());
PrefetchTreeNode mergedA = original.getChild("a");
assertEquals(1, mergedA.getChildren().size());
assertTrue(mergedA.isPhantom());
assertEquals(PrefetchTreeNode.UNDEFINED_SEMANTICS, mergedA.getSemantics());
PrefetchTreeNode mergedB = mergedA.getChild("b");
assertEquals(1, mergedB.getChildren().size());
assertFalse(mergedB.isPhantom());
assertEquals(PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS, mergedB.getSemantics());
PrefetchTreeNode mergedC = mergedB.getChild("c");
assertEquals(0, mergedC.getChildren().size());
assertFalse(mergedC.isPhantom());
assertEquals(PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS, mergedC.getSemantics());
}
}