subqueriesregressiontest.java

开发MySql数据库的最新JDBC驱动。

/*
 Copyright (C) 2002-2004 MySQL AB

 This program is free software; you can redistribute it and/or modify
 it under the terms of version 2 of the GNU General Public License as 
 published by the Free Software Foundation.

 There are special exceptions to the terms and conditions of the GPL 
 as it is applied to this software. View the full text of the 
 exception in file EXCEPTIONS-CONNECTOR-J in the directory of this 
 software distribution.

 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 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



 */
package testsuite.regression;

import testsuite.BaseTestCase;

/**
 * Tests SubQueries on MySQL > 4.1
 * 
 * @author Mark Matthews
 * @version $Id: SubqueriesRegressionTest.java,v 1.1.2.1 2005/05/13 18:58:38
 *          mmatthews Exp $
 */
public class SubqueriesRegressionTest extends BaseTestCase {
	private final static int REPETITIONS = 100;

	/**
	 * 
	 */
	public SubqueriesRegressionTest(String name) {
		super(name);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see junit.framework.TestCase#setUp()
	 */
	public void setUp() throws Exception {
		// TODO Auto-generated method stub
		super.setUp();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see junit.framework.TestCase#tearDown()
	 */
	public void tearDown() throws Exception {
		// TODO Auto-generated method stub
		super.tearDown();
	}

	/**
	 * Runs all test cases in this test suite
	 * 
	 * @param args
	 */
	public static void main(String[] args) {
		junit.textui.TestRunner.run(SubqueriesRegressionTest.class);
	}

	/**
	 * DOCUMENT ME!
	 * 
	 * @throws Exception
	 *             DOCUMENT ME!
	 */
	public void testSubQuery1() throws Exception {
		if (versionMeetsMinimum(4, 1)) {
			for (int i = 0; i < REPETITIONS; i++) {
				createTables();

				try {
					this.rs = this.stmt
							.executeQuery("select t3.colA from t3, t1 where t3.colA = 'bbbb' and t3.colB = t1.colA and exists (select 'X' from t2 where t2.colB = t1.colB)");
					assertTrue(this.rs.next());
					assertTrue("bbbb".equals(this.rs.getString(1)));
					assertTrue(!this.rs.next());
				} finally {
					try {
						if (this.rs != null) {
							this.rs.close();
						}
					} finally {
						dropTables();
					}
				}
			}
		}
	}

	/**
	 * DOCUMENT ME!
	 * 
	 * @throws Exception
	 *             DOCUMENT ME!
	 */
	public void testSubQuery2() throws Exception {
		if (versionMeetsMinimum(4, 1)) {
			for (int i = 0; i < REPETITIONS; i++) {
				createTables();

				try {
					this.rs = this.stmt
							.executeQuery("select t3.colA from t3, t1 where t3.colA = 'bbbb' and t3.colB = t1.colA and exists (select 'X' from t2 where t2.colB = 2)");
					assertTrue(this.rs.next());
					assertTrue("bbbb".equals(this.rs.getString(1)));
					assertTrue(!this.rs.next());
				} finally {
					try {
						if (this.rs != null) {
							this.rs.close();
						}
					} finally {
						dropTables();
					}
				}
			}
		}
	}

	/**
	 * DOCUMENT ME!
	 * 
	 * @throws Exception
	 *             DOCUMENT ME!
	 */
	public void testSubQuery3() throws Exception {
		if (versionMeetsMinimum(4, 1)) {
			for (int i = 0; i < REPETITIONS; i++) {
				createTables();

				try {
					this.rs = this.stmt
							.executeQuery("select * from t1 where t1.colA = 'efgh' and exists (select 'X' from t2 where t2.colB = t1.colB)");
					assertTrue(this.rs.next());
					assertTrue("efgh".equals(this.rs.getString(1)));
					assertTrue("2".equals(this.rs.getString(2)));
					assertTrue(!this.rs.next());
				} finally {
					try {
						if (this.rs != null) {
							this.rs.close();
						}
					} finally {
						dropTables();
					}
				}
			}
		}
	}

	/**
	 * DOCUMENT ME!
	 * 
	 * @throws Exception
	 *             DOCUMENT ME!
	 */
	public void testSubQuery4() throws Exception {
		// not really a subquery, but we want to have this in our testsuite
		if (versionMeetsMinimum(4, 1)) {
			for (int i = 0; i < REPETITIONS; i++) {
				createTables();

				try {
					this.rs = this.stmt
							.executeQuery("select colA, '' from t2 union select colA, colB from t3");

					assertTrue(this.rs.next());
					assertTrue("type1".equals(this.rs.getString(1)));
					assertTrue("".equals(this.rs.getString(2)));

					assertTrue(this.rs.next());
					assertTrue("type2".equals(this.rs.getString(1)));
					assertTrue("".equals(this.rs.getString(2)));

					assertTrue(this.rs.next());
					assertTrue("type3".equals(this.rs.getString(1)));
					assertTrue("".equals(this.rs.getString(2)));

					assertTrue(this.rs.next());
					assertTrue("aaaa".equals(this.rs.getString(1)));
					assertTrue("'" + this.rs.getString(2)
							+ "' != expected of 'abcd'", "abcd".equals(this.rs
							.getString(2)));

					assertTrue(this.rs.next());
					assertTrue("bbbb".equals(this.rs.getString(1)));
					assertTrue("efgh".equals(this.rs.getString(2)));

					assertTrue(this.rs.next());
					assertTrue("cccc".equals(this.rs.getString(1)));
					assertTrue("'" + this.rs.getString(2)
							+ "' != expected of 'ijkl'", "ijkl".equals(this.rs
							.getString(2)));

					assertTrue(!this.rs.next());
				} finally {
					try {
						if (this.rs != null) {
							this.rs.close();
						}
					} finally {
						dropTables();
					}
				}
			}
		}
	}

	/**
	 * DOCUMENT ME!
	 * 
	 * @throws Exception
	 *             DOCUMENT ME!
	 */
	public void testSubQuery5() throws Exception {
		if (versionMeetsMinimum(4, 1)) {
			for (int i = 0; i < REPETITIONS; i++) {
				createTables();

				try {
					this.rs = this.stmt
							.executeQuery("select t1.colA from t1, t4 where t4.colA = t1.colA and exists (select 'X' from t2 where t2.colA = t4.colB)");
					assertTrue(this.rs.next());
					assertTrue("abcd".equals(this.rs.getString(1)));
					assertTrue(this.rs.next());
					assertTrue("efgh".equals(this.rs.getString(1)));
					assertTrue(this.rs.next());
					assertTrue("ijkl".equals(this.rs.getString(1)));
					assertTrue(!this.rs.next());
				} finally {
					try {
						if (this.rs != null) {
							this.rs.close();
						}
					} finally {
						dropTables();
					}
				}
			}
		}
	}

	private void createTables() throws Exception {
		this.stmt.executeUpdate("drop table if exists t1");
		this.stmt.executeUpdate("drop table if exists t1");
		this.stmt.executeUpdate("drop table if exists t2");
		this.stmt.executeUpdate("drop table if exists t3");
		this.stmt.executeUpdate("drop table if exists t4");
		this.stmt
				.executeUpdate("create table t1(colA varchar(10), colB decimal(3,0))");
		this.stmt
				.executeUpdate("create table t2(colA varchar(10), colB varchar(10))");
		this.stmt
				.executeUpdate("create table t3(colA varchar(10), colB varchar(10))");
		this.stmt
				.executeUpdate("create table t4(colA varchar(10), colB varchar(10))");
		this.stmt
				.executeUpdate("insert into t1 values ('abcd', 1), ('efgh', 2), ('ijkl', 3)");
		this.stmt
				.executeUpdate("insert into t2 values ('type1', '1'), ('type2', '2'), ('type3', '3')");
		this.stmt
				.executeUpdate("insert into t3 values ('aaaa', 'abcd'), ('bbbb', 'efgh'), ('cccc', 'ijkl')");
		this.stmt
				.executeUpdate("insert into t4 values ('abcd', 'type1'), ('efgh', 'type2'), ('ijkl', 'type3')");
	}

	private void dropTables() throws Exception {
		this.stmt.executeUpdate("drop table if exists t1");
		this.stmt.executeUpdate("drop table if exists t1");
		this.stmt.executeUpdate("drop table if exists t2");
		this.stmt.executeUpdate("drop table if exists t3");
		this.stmt.executeUpdate("drop table if exists t4");
	}
}