/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 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.dialect;

import java.sql.Types;

import org.junit.Test;

import org.hibernate.mapping.Column;
import org.hibernate.testing.TestForIssue;
import org.hibernate.testing.junit4.BaseUnitTestCase;

import static org.junit.Assert.assertEquals;

/**
 * DB2 dialect related test cases
 *
 * @author Hardy Ferentschik
 */

public class DB2DialectTestCase extends BaseUnitTestCase {
	private final DB2Dialect dialect = new DB2Dialect();

	@Test
	@TestForIssue(jiraKey = "HHH-6866")
	public void testGetDefaultBinaryTypeName() {
		String actual = dialect.getTypeName( Types.BINARY );
		assertEquals(
				"The default column length is 255, but char length on DB2 is limited to 254",
				"varchar($l) for bit data",
				actual
		);
	}

	@Test
	@TestForIssue(jiraKey = "HHH-6866")
	public void testGetExplicitBinaryTypeName() {
		// lower bound
		String actual = dialect.getTypeName( Types.BINARY, 1, Column.DEFAULT_PRECISION, Column.DEFAULT_SCALE );
		assertEquals(
				"Wrong binary type",
				"char(1) for bit data",
				actual
		);

		// upper bound
		actual = dialect.getTypeName( Types.BINARY, 254, Column.DEFAULT_PRECISION, Column.DEFAULT_SCALE );
		assertEquals(
				"Wrong binary type. 254 is the max length in DB2",
				"char(254) for bit data",
				actual
		);

		// exceeding upper bound
		actual = dialect.getTypeName( Types.BINARY, 255, Column.DEFAULT_PRECISION, Column.DEFAULT_SCALE );
		assertEquals(
				"Wrong binary type. Should be varchar for length > 254",
				"varchar(255) for bit data",
				actual
		);
	}
}