Commons Beanutils example source code file (DoubleLocaleConverterTestCase.java)

This example Commons Beanutils source code file (DoubleLocaleConverterTestCase.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, a, b, baselocaleconvertertestcase, c, c, double, double, doublelocaleconverter, doublelocaleconverter, doublelocaleconvertertestcase, exception

The Commons Beanutils DoubleLocaleConverterTestCase.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;


/**
 * Test Case for the DoubleLocaleConverter class.
 *
 * @author Niall Pemberton
 * @version $Revision: 469728 $ $Date: 2006-11-01 01:08:34 +0000 (Wed, 01 Nov 2006) $
 */

public class DoubleLocaleConverterTestCase extends BaseLocaleConverterTestCase {



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

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

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

        super.setUp();

        defaultValue  = new Double("9.99");
        expectedValue = new Double(expectedDecimalValue);

    }

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


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

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

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


        convertValueNoPattern(converter, "(A)", localizedDecimalValue, expectedValue);
        convertValueWithPattern(converter, "(A)", localizedDecimalValue, localizedDecimalPattern, expectedValue);
        convertInvalid(converter, "(A)", defaultValue);
        convertNull(converter, "(A)", defaultValue);


        // **************************************************************************
        // Convert value in the wrong format - maybe you would expect it to throw an
        // exception and return the default - it doesn't, DecimalFormat parses it
        // quite happily turning "1,234.56" into "1.234"
        // I guess this is one of the limitations of DecimalFormat
        // **************************************************************************
        convertValueNoPattern(converter, "(B)", defaultDecimalValue, new Double("1.234"));


        // **************************************************************************
        // Convert with non-localized pattern - this causes an exception in parse()
        // but it gets swallowed in convert() method and returns default.
        //  **** IS THIS THE EXPECTED BEHAVIOUR? ****
        // Maybe if the pattern is no good, we should use a default pattern rather
        // than just returning the default value.
        // **************************************************************************
        convertValueWithPattern(converter, "(B)", localizedDecimalValue, defaultDecimalPattern, defaultValue);


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


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


        convertValueNoPattern(converter, "(C)", localizedDecimalValue, expectedValue);
        convertValueWithPattern(converter, "(C)", localizedDecimalValue, defaultDecimalPattern, 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 locale ------------
        converter = new DoubleLocaleConverter();

        // Perform Tests
        convertValueNoPattern(converter, defaultDecimalValue, expectedValue);
        convertValueWithPattern(converter, defaultDecimalValue, defaultDecimalPattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);

    }

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

        // ------------- Construct using localized pattern (default locale) --------
        converter = new DoubleLocaleConverter(true);

        // Perform Tests
        convertValueNoPattern(converter, defaultDecimalValue, expectedValue);
        convertValueWithPattern(converter, defaultDecimalValue, defaultDecimalPattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);


    }

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

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

        // Perform Tests
        convertValueNoPattern(converter, localizedDecimalValue, expectedValue);
        convertValueWithPattern(converter, localizedDecimalValue, defaultDecimalPattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);


    }


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

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

        // Perform Tests
        convertValueNoPattern(converter, localizedDecimalValue, expectedValue);
        convertValueWithPattern(converter, localizedDecimalValue, localizedDecimalPattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);


    }

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

        // ------------- Construct using specified Locale --------
        converter = new DoubleLocaleConverter(localizedLocale, defaultDecimalPattern);

        // Perform Tests
        convertValueNoPattern(converter, localizedDecimalValue, expectedValue);
        convertValueWithPattern(converter, localizedDecimalValue, defaultDecimalPattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);

    }

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

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

        // Perform Tests
        convertValueNoPattern(converter, localizedDecimalValue, expectedValue);
        convertValueWithPattern(converter, localizedDecimalValue, localizedDecimalPattern, expectedValue);
        convertInvalid(converter, null);
        convertNull(converter, null);

    }

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

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

        // Perform Tests
        convertValueNoPattern(converter, defaultDecimalValue, expectedValue);
        convertValueWithPattern(converter, defaultDecimalValue, defaultDecimalPattern, expectedValue);
        convertInvalid(converter, defaultValue);
        convertNull(converter, defaultValue);

    }

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

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

        // Perform Tests
        convertValueNoPattern(converter, defaultDecimalValue, expectedValue);
        convertValueWithPattern(converter, defaultDecimalValue, defaultDecimalPattern, expectedValue);
        convertInvalid(converter, defaultValue);
        convertNull(converter, defaultValue);

    }



}