/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2006-2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.test.ast;
import antlr.ASTFactory;
import antlr.collections.AST;
import org.junit.Test;
import org.hibernate.hql.internal.ast.util.ASTUtil;
import org.hibernate.testing.junit4.BaseUnitTestCase;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
/**
* Unit test for ASTUtil.
*/
public class ASTUtilTest extends BaseUnitTestCase {
private ASTFactory factory = new ASTFactory();
@Test
public void testCreate() throws Exception {
AST n = ASTUtil.create( factory, 1, "one");
assertNull( n.getFirstChild() );
assertEquals( "one", n.getText() );
assertEquals( 1, n.getType() );
}
@Test
public void testCreateTree() throws Exception {
AST[] tree = new AST[4];
AST grandparent = tree[0] = ASTUtil.create(factory, 1, "grandparent");
AST parent = tree[1] = ASTUtil.create(factory,2,"parent");
AST child = tree[2] = ASTUtil.create(factory,3,"child");
AST baby = tree[3] = ASTUtil.create(factory,4,"baby");
AST t = ASTUtil.createTree( factory, tree);
assertSame(t,grandparent);
assertSame(parent,t.getFirstChild());
assertSame(child,t.getFirstChild().getFirstChild());
assertSame( baby, t.getFirstChild().getFirstChild().getFirstChild() );
}
@Test
public void testFindPreviousSibling() throws Exception {
AST child1 = ASTUtil.create(factory,2, "child1");
AST child2 = ASTUtil.create(factory,3, "child2");
AST n = factory.make( new AST[] {
ASTUtil.create(factory, 1, "parent"),
child1,
child2,
});
assertSame(child1,ASTUtil.findPreviousSibling( n,child2));
Exception e = null;
try {
ASTUtil.findPreviousSibling(child1,null);
}
catch (Exception x) {
e = x;
}
assertNotNull(e);
}
}