tests/phx/src/test/java/org/trafodion/phoenix/end2end/IsNullTest.java

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package test.java.org.trafodion.phoenix.end2end;

import static org.junit.Assert.*;
import org.junit.*;
import java.sql.*;
import java.util.*;

public class IsNullTest extends BaseTest {

    @BeforeClass
    public static void doTestSuiteSetup() throws Exception {
        /* List all of the object names being used in this entire class.
         * The objects are dropped with errors ignored, so it is OK if the
         * object does not exist for a particular test.
         */
        objDropList = new ArrayList<String>(
            Arrays.asList("table IntIntKeyTest"));
        doBaseTestSuiteSetup();
    }
    /* @AfterClass, @Before, @After are defined in BaseTest */

    @Test
    public void testIsNullInPk() throws Exception {
        printTestDescription();

        createTestTable("IntIntKeyTest");
        String upsert = null;
        if (tgtPH()||tgtTR()) upsert = "UPSERT INTO IntIntKeyTest VALUES(4,2)";
        else if (tgtSQ()) upsert = "INSERT INTO IntIntKeyTest VALUES(4,2)";
        PreparedStatement upsertStmt = conn.prepareStatement(upsert);
        int rowsInserted = upsertStmt.executeUpdate();
        assertEquals(1, rowsInserted);
        if (tgtPH()) upsert = "UPSERT INTO IntIntKeyTest VALUES(6)";
        else if (tgtTR()) upsert = "UPSERT INTO IntIntKeyTest VALUES(6, null)";
        else if (tgtSQ()) upsert = "INSERT INTO IntIntKeyTest VALUES(6, null)";
        upsertStmt = conn.prepareStatement(upsert);
        rowsInserted = upsertStmt.executeUpdate();
        assertEquals(1, rowsInserted);

        String select = "SELECT i/j FROM IntIntKeyTest WHERE j IS NULL";
        ResultSet rs;
        rs = conn.createStatement().executeQuery(select);
        assertTrue(rs.next());
        assertEquals(0,rs.getInt(1));
        assertTrue(rs.wasNull());
        assertFalse(rs.next());
        select = "SELECT i/j FROM IntIntKeyTest WHERE j IS NOT NULL";
        rs = conn.createStatement().executeQuery(select);
        assertTrue(rs.next());
        assertEquals(2,rs.getInt(1));
        assertFalse(rs.next());
    }
}