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Commons Beanutils example source code file (DateLocaleConverterTestCase.java)

This example Commons Beanutils source code file (DateLocaleConverterTestCase.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

a, c, conversionexception, could, could, datelocaleconverter, datelocaleconverter, error, feb, feb, parseexception, simpledateformat, string, string, text, util

The Commons Beanutils DateLocaleConverterTestCase.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.locale.converters;

import java.text.SimpleDateFormat;
import java.text.ParseException;
import java.text.DateFormatSymbols;

import java.util.Locale;

import org.apache.commons.beanutils.ConversionException;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;

/**
 * Test Case for the DateLocaleConverter class.
 *
 * @author Robert Burrell Donkin
 * @author Niall Pemberton
 * @version $Revision: 812183 $ $Date: 2009-09-07 16:08:54 +0100 (Mon, 07 Sep 2009) $
 */

public class DateLocaleConverterTestCase extends BaseLocaleConverterTestCase {

    /** All logging goes through this logger */
    private Log log = LogFactory.getLog(DateLocaleConverterTestCase.class);

    protected String localizedDatePattern; 
    protected String localizedDateValue;
    protected String localizedShortDateValue;
    protected String defaultDatePattern; 
    protected String defaultDateValue;
    protected String defaultShortDateValue;

    protected boolean validLocalDateSymbols;

    // ------------------------------------------------------------------------

    public DateLocaleConverterTestCase(String name) {
        super(name);
    }
    
    // -------------------------------------------------- Overall Test Methods

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

        super.setUp();

        String version = System.getProperty("java.specification.version");
        log.debug("JDK Version "+version);


        try {
            SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
            expectedValue      = format.parse("20041001");
            defaultValue       = format.parse("19670316");
        } catch (Exception ex) {
            log.error("Error creating expected/default dates", ex);
        }

        // Default Locale (Use US)
        defaultLocale           = Locale.US;
        defaultDatePattern      = "d MMMM yyyy";
        defaultDateValue        = "1 October 2004";
        defaultShortDateValue   = "10/01/04";

        // Use German Locale
//        localizedLocale         = Locale.GERMAN;  // N.B. doesn't work for dates
//        localizedLocale         = Locale.GERMANY; // N.B. doesn't work for dates
        localizedLocale         = new Locale("de", "AT"); // Austria/German works
        localizedDatePattern    = "t MMMM uuuu";
        localizedDateValue      = "1 Oktober 2004";
        localizedShortDateValue = "01.10.04";

        // Test whether the "local pattern characters" are what we
        // are expecting - Locale.GERMAN and Locale.GERMANY, Locale.FRENCH all
        // returned the standard "English" pattern characters on my machine
        // for JDK 1.4 (JDK 1.3 was OK). The Austria/German locale was OK though
        String expectedChars = "GuMtkHmsSEDFwWahKzZ";
        DateFormatSymbols localizedSymbols = new DateFormatSymbols(localizedLocale);
        String localChars    = localizedSymbols.getLocalPatternChars();

        // different JDK versions seem to have different numbers of pattern characters 
        int lth = localChars.length() > expectedChars.length() ? expectedChars.length() :
                     localChars.length() < expectedChars.length() ? localChars.length() : expectedChars.length();
        validLocalDateSymbols = expectedChars.substring(0, lth).equals(localChars.substring(0, lth));

    }

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


    // ------------------------------------------------------------------------

    public void testSetLenient() {
        // make sure that date format works as expected
        SimpleDateFormat dateFormat = new SimpleDateFormat("MMM dd, yyyy", Locale.UK);
        
        // test with no leniency
        dateFormat.setLenient(false);
        
        try {
            
            dateFormat.parse("Feb 10, 2001");
            
        } catch (ParseException e) {
            fail("Could not parse date (1) - " + e.getMessage());
        }
        
        try {
        
            dateFormat.parse("Feb 31, 2001");
            fail("Parsed illegal date (1)");
        
        } catch (ParseException e) {
            // that's what we expected
        }
        
        // test with leniency
        dateFormat.setLenient(true);
        
        try {
            
            dateFormat.parse("Feb 10, 2001");
            
        } catch (ParseException e) {
            fail("Could not parse date (2) - " + e.getMessage());
        }
        
        try {
        
            dateFormat.parse("Feb 31, 2001");
        
        } catch (ParseException e) {
            fail("Could not parse date (3) - " + e.getMessage());
        }
        
        // now repeat tests for converter
        DateLocaleConverter converter = new DateLocaleConverter(Locale.UK, "MMM dd, yyyy");
        
        // test with no leniency
        converter.setLenient(false);
        assertEquals("Set lenient failed", converter.isLenient(), false);
        
        try {
            
            converter.convert("Feb 10, 2001");
            
        } catch (ConversionException e) {
            fail("Could not parse date (4) - " + e.getMessage());
        }
        
        try {
        
            converter.convert("Feb 31, 2001");
            assertEquals("Set lenient failed", converter.isLenient(), false);
            fail("Parsed illegal date (2)");
        
        } catch (ConversionException e) {
            // that's what we expected
        }
        
        // test with leniency
        converter.setLenient(true);
        assertEquals("Set lenient failed", converter.isLenient(), true);
        
        try {
            
            converter.convert("Feb 10, 2001");
            
        } catch (ConversionException e) {
            fail("Could not parse date (5) - " + e.getMessage());
        }
        
        try {
        
            converter.convert("Feb 31, 2001");
        
        } catch (ConversionException e) {
            fail("Could not parse date (6) - " + e.getMessage());
        }
    }

    /**
     * Test Converter(defaultValue, locale, pattern, localizedPattern) constructor
     */
    public void testConstructorMain() {

        // Skip this test if no valid symbols for the locale
        if (!validLocalDateSymbols) {
            log.error("Invalid locale symbols *** skipping testConstructorMain() **");
            return;
        } 

        // ------------- Construct with localized pattern ------------
        converter = new DateLocaleConverter(defaultValue,
                                            localizedLocale,
                                            localizedDatePattern,
                                            true);


        convertValueNoPattern(converter, "(A)", localizedDateValue, expectedValue);
        convertValueWithPattern(converter, "(A)", localizedDateValue, localizedDatePattern, expectedValue);
        convertInvalid(converter, "(A)", defaultValue);
        convertNull(converter, "(A)", defaultValue);


        // Convert value in the wrong format - should return default value
        convertValueNoPattern(converter, "(B)", defaultDateValue, defaultValue);

        // Convert with non-localized pattern - should return default value
        convertValueWithPattern(converter, "(B)", localizedDateValue, defaultDatePattern, defaultValue);

        // **************************************************************************
        // Convert with specified type
        // 
        // BaseLocaleConverter completely ignores the type - so even if we specify
        // Double.class here it still returns a Date.
        //  **** SHOULD IMPLEMENT THIS BEHAVIOUR ****
        // **************************************************************************
        convertValueToType(converter, "(B)", String.class, localizedDateValue, localizedDatePattern, expectedValue);


        // ------------- Construct with non-localized pattern ------------
        converter = new DateLocaleConverter(defaultValue,
                                            localizedLocale,
                                            defaultDatePattern,
                                            false);


        convertValueNoPattern(converter, "(C)", localizedDateValue, expectedValue);
        convertValueWithPattern(converter, "(C)", localizedDateValue, defaultDatePattern, expectedValue);
        convertInvalid(converter, "(C)", defaultValue);
        convertNull(converter, "(C)", defaultValue);

    }

    /**
     * Test Converter() constructor
     * 
     * Uses the default locale, no default value
     * 
     */
    public void testConstructor_2() {

        // ------------- Construct using default pattern & default locale ------------
        converter = new DateLocaleConverter();

        // Perform Tests
        convertValueNoPattern(converter, defaultShortDateValue, expectedValue);
        convertValueWithPattern(converter, defaultDateValue, defaultDatePattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);

    }

    /**
     * Test Converter(locPattern) constructor
     * 
     * Uses the default locale, no default value
     * 
     */
    public void testConstructor_3() {

        // ------------- Construct using default pattern & default locale --------
        converter = new DateLocaleConverter(true);

        // Perform Tests
        convertValueNoPattern(converter, defaultShortDateValue, expectedValue);
        convertValueWithPattern(converter, defaultDateValue, defaultDatePattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);


    }

    /**
     * Test Converter(Locale) constructor
     */
    public void testConstructor_4() {

        // ------------- Construct using specified Locale --------
        converter = new DateLocaleConverter(localizedLocale);

        // Perform Tests
        convertValueNoPattern(converter, localizedShortDateValue, expectedValue);
        convertValueWithPattern(converter, localizedDateValue, defaultDatePattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);


    }


    /**
     * Test Converter(Locale, locPattern) constructor
     */
    public void testConstructor_5() {

        // Skip this test if no valid symbols for the locale
        if (!validLocalDateSymbols) {
            log.error("Invalid locale symbols *** skipping testConstructor_5() **");
            return;
        } 

        // ------------- Construct using specified Locale --------
        converter = new DateLocaleConverter(localizedLocale, true);

        // Perform Tests
        convertValueNoPattern(converter, localizedShortDateValue, expectedValue);
        convertValueWithPattern(converter, localizedDateValue, localizedDatePattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);


    }

    /**
     * Test Converter(Locale, pattern) constructor
     */
    public void testConstructor_6() {

        // ------------- Construct using specified Locale --------
        converter = new DateLocaleConverter(localizedLocale, defaultDatePattern);

        // Perform Tests
        convertValueNoPattern(converter, localizedDateValue, expectedValue);
        convertValueWithPattern(converter, localizedDateValue, defaultDatePattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);

    }

    /**
     * Test Converter(Locale, pattern, locPattern) constructor
     */
    public void testConstructor_7() {

        // Skip this test if no valid symbols for the locale
        if (!validLocalDateSymbols) {
            log.error("Invalid locale symbols *** skipping testConstructor_7() **");
            return;
        } 

        // ------------- Construct using specified Locale --------
        converter = new DateLocaleConverter(localizedLocale, localizedDatePattern, true);

        // Perform Tests
        convertValueNoPattern(converter, localizedDateValue, expectedValue);
        convertValueWithPattern(converter, localizedDateValue, localizedDatePattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);

    }

    /**
     * Test Converter(defaultValue) constructor
     */
    public void testConstructor_8() {

        // ------------- Construct using specified Locale --------
        converter = new DateLocaleConverter(defaultValue);

        // Perform Tests
        convertValueNoPattern(converter, defaultShortDateValue, expectedValue);
        convertValueWithPattern(converter, defaultDateValue, defaultDatePattern, expectedValue);
        convertInvalid(converter, defaultValue);
        convertNull(converter, defaultValue);

    }

    /**
     * Test Converter(defaultValue, locPattern) constructor
     */
    public void testConstructor_9() {

        // ------------- Construct using specified Locale --------
        converter = new DateLocaleConverter(defaultValue, true);

        // Perform Tests
        convertValueNoPattern(converter, defaultShortDateValue, expectedValue);
        convertValueWithPattern(converter, defaultDateValue, defaultDatePattern, expectedValue);
        convertInvalid(converter, defaultValue);
        convertNull(converter, defaultValue);

    }

    /**
     * Test invalid date
     */
    public void testInvalidDate() {

        converter = new DateLocaleConverter(defaultLocale);

        try {
            converter.convert("01/10/2004", "dd-MM-yyyy");
        } catch (ConversionException e) {
            assertEquals("Parse Error", "Error parsing date '01/10/2004' at position=2", e.getMessage());
        }

        try {
            converter.convert("01-10-2004X", "dd-MM-yyyy");
        } catch (ConversionException e) {
            assertEquals("Parse Length", "Date '01-10-2004X' contains unparsed characters from position=10", e.getMessage());
        }

    }

    /**
     * Test java.util.Date
     */
    public void testDateObject() {
        converter = new DateLocaleConverter(defaultLocale);
        assertEquals("java.util.Date", expectedValue, converter.convert(expectedValue));
    }

    /**
     * Test Calendar
     */
    public void testCalendarObject() {
        converter = new DateLocaleConverter(defaultLocale);
        java.util.Calendar calendar = java.util.Calendar.getInstance();
        calendar.setTime((java.util.Date)expectedValue);
        assertEquals("java.util.Calendar", expectedValue, converter.convert(calendar));
    }

}

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