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Commons Beanutils example source code file (DynaResultSetTestCase.java)

This example Commons Beanutils source code file (DynaResultSetTestCase.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Beanutils tags/keywords

bigdecimal, did, dynabean, dynabean, exception, illegalargumentexception, illegalargumentexception, integer, iterator, math, object, object, resultsetdynaclass, string, string, util

The Commons Beanutils DynaResultSetTestCase.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ 


package org.apache.commons.beanutils;


import java.math.BigDecimal;
import java.util.Iterator;

import junit.framework.TestCase;
import junit.framework.Test;
import junit.framework.TestSuite;


/**
 * Test accessing ResultSets via DynaBeans.
 *
 * @author Craig R. McClanahan
 * @version $Revision: 556221 $ $Date: 2007-07-14 05:19:21 +0100 (Sat, 14 Jul 2007) $
 */

public class DynaResultSetTestCase extends TestCase {


    // ----------------------------------------------------- Instance Variables


    /**
     * The mock result set DynaClass to be tested.
     */
    protected ResultSetDynaClass dynaClass = null;


    /**
     * Names of the columns for this test.  Must match the order they are
     * defined in {@link TestResultSetMetaData}, and must be all lower case.
     */
    protected String columns[] =
    { "bigdecimalproperty", "booleanproperty",
      "byteproperty", "dateproperty",
      "doubleproperty", "floatproperty",
      "intproperty", "longproperty",
      "nullproperty", "shortproperty",
      "stringproperty", "timeproperty",
      "timestampproperty" };


    // ----------------------------------------------------------- Constructors


    /**
     * Construct a new instance of this test case.
     *
     * @param name Name of the test case
     */
    public DynaResultSetTestCase(String name) {

        super(name);

    }


    // --------------------------------------------------- Overall Test Methods


    /**
     * Set up instance variables required by this test case.
     */
    public void setUp() throws Exception {

        dynaClass = new ResultSetDynaClass(TestResultSet.createProxy());

    }


    /**
     * Return the tests included in this test suite.
     */
    public static Test suite() {

        return (new TestSuite(DynaResultSetTestCase.class));

    }


    /**
     * Tear down instance variables required by this test case.
     */
    public void tearDown() {

        dynaClass = null;

    }



    // ------------------------------------------------ Individual Test Methods


    public void testGetName() {

        assertEquals("DynaClass name",
                     "org.apache.commons.beanutils.ResultSetDynaClass",
                     dynaClass.getName());


    }


    public void testGetDynaProperty() {

        // Invalid argument test
        try {
            dynaClass.getDynaProperty(null);
            fail("Did not throw IllegaArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected result
        }

        // Negative test
        DynaProperty dynaProp = dynaClass.getDynaProperty("unknownProperty");
        assertTrue("unknown property returns null",
                   (dynaProp == null));

        // Positive test
        dynaProp = dynaClass.getDynaProperty("stringproperty");
        assertNotNull("string property exists", dynaProp);
        assertEquals("string property name", "stringproperty",
                     dynaProp.getName());
        assertEquals("string property class", String.class,
                     dynaProp.getType());

    }


    public void testGetDynaProperties() {

        DynaProperty dynaProps[] = dynaClass.getDynaProperties();
        assertNotNull("dynaProps exists", dynaProps);
        assertEquals("dynaProps length", columns.length, dynaProps.length);
        for (int i = 0; i < columns.length; i++) {
            assertEquals("Property " + columns[i],
                         columns[i], dynaProps[i].getName());
        }

    }


    public void testNewInstance() {

        try {
            dynaClass.newInstance();
            fail("Did not throw UnsupportedOperationException()");
        } catch (UnsupportedOperationException e) {
            // Expected result
        } catch (Exception e) {
            fail("Threw exception " + e);
        }

    }


    public void testIteratorCount() {

        Iterator rows = dynaClass.iterator();
        assertNotNull("iterator exists", rows);
        int n = 0;
        while (rows.hasNext()) {
            rows.next();
            n++;
            if (n > 10) {
                fail("Returned too many rows");
            }
        }
        assertEquals("iterator rows", 5, n);

    }


    public void testIteratorResults() {

        // Grab the third row
        Iterator rows = dynaClass.iterator();
        rows.next();
        rows.next();
        DynaBean row = (DynaBean) rows.next();

        // Invalid argument test
        try {
            row.get("unknownProperty");
            fail("Did not throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected result
        }

        // Verify property values

        Object bigDecimalProperty = row.get("bigdecimalproperty");
        assertNotNull("bigDecimalProperty exists", bigDecimalProperty);
        assertTrue("bigDecimalProperty type",
                   bigDecimalProperty instanceof BigDecimal);
        assertEquals("bigDecimalProperty value",
                     123.45,
                     ((BigDecimal) bigDecimalProperty).doubleValue(),
                     0.005);

        Object intProperty = row.get("intproperty");
        assertNotNull("intProperty exists", intProperty);
        assertTrue("intProperty type",
                   intProperty instanceof Integer);
        assertEquals("intProperty value",
                     103,
                     ((Integer) intProperty).intValue());

        Object nullProperty = row.get("nullproperty");
        assertNull("nullProperty null", nullProperty);

        Object stringProperty = row.get("stringproperty");
        assertNotNull("stringProperty exists", stringProperty);
        assertTrue("stringProperty type",
                   stringProperty instanceof String);
        assertEquals("stringProperty value",
                     "This is a string",
                     (String) stringProperty);


    }


    /**
     * Test normal case column names (i.e. not converted to lower case)
     */
    public void testIteratorResultsNormalCase() {
        ResultSetDynaClass dynaClass = null;
        try {
            dynaClass = new ResultSetDynaClass(TestResultSet.createProxy(), false);
        } catch (Exception e) {
            fail("Error creating ResultSetDynaClass: " + e);
        }

        // Grab the third row
        Iterator rows = dynaClass.iterator();
        rows.next();
        rows.next();
        DynaBean row = (DynaBean) rows.next();

        // Invalid argument test
        try {
            row.get("unknownProperty");
            fail("Did not throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // Expected result
        }

        // Verify property values

        Object bigDecimalProperty = row.get("bigDecimalProperty");
        assertNotNull("bigDecimalProperty exists", bigDecimalProperty);
        assertTrue("bigDecimalProperty type",
                   bigDecimalProperty instanceof BigDecimal);
        assertEquals("bigDecimalProperty value",
                     123.45,
                     ((BigDecimal) bigDecimalProperty).doubleValue(),
                     0.005);

        Object intProperty = row.get("intProperty");
        assertNotNull("intProperty exists", intProperty);
        assertTrue("intProperty type",
                   intProperty instanceof Integer);
        assertEquals("intProperty value",
                     103,
                     ((Integer) intProperty).intValue());

        Object nullProperty = row.get("nullProperty");
        assertNull("nullProperty null", nullProperty);

        Object stringProperty = row.get("stringProperty");
        assertNotNull("stringProperty exists", stringProperty);
        assertTrue("stringProperty type",
                   stringProperty instanceof String);
        assertEquals("stringProperty value",
                     "This is a string",
                     (String) stringProperty);


    }


}

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