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 *
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 * This program is also distributed with certain software (including but not
 * limited to OpenSSL) that is licensed under separate terms, as designated in a
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 * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
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 */

package testsuite.regression;

import testsuite.BaseTestCase;

/**
 * Tests SubQueries
 */
public class SubqueriesRegressionTest extends BaseTestCase {
    private final static int REPETITIONS = 100;

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

    @Override
    public void setUp() throws Exception {
        super.setUp();

        createTables();
    }

    @Override
    public void tearDown() throws Exception {
        super.tearDown();
    }

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

    public void testSubQuery1() throws Exception {
        for (int i = 0; i < REPETITIONS; i++) {

            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());
        }
    }

    public void testSubQuery2() throws Exception {
        for (int i = 0; i < REPETITIONS; i++) {

            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());

        }
    }

    public void testSubQuery3() throws Exception {
        for (int i = 0; i < REPETITIONS; i++) {

            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());

        }
    }

    public void testSubQuery4() throws Exception {
        // not really a subquery, but we want to have this in our testsuite
        for (int i = 0; i < REPETITIONS; i++) {
            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());
        }
    }

    public void testSubQuery5() throws Exception {
        for (int i = 0; i < REPETITIONS; i++) {

            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());

        }
    }

    private void createTables() throws Exception {
        createTable("t1", "(colA varchar(10), colB decimal(3,0))");
        createTable("t2", "(colA varchar(10), colB varchar(10))");
        createTable("t3", "(colA varchar(10), colB varchar(10))");
        createTable("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')");
    }

}
