Commons Beanutils example source code file (BaseLocaleConverterTestCase.java)

This example Commons Beanutils source code file (BaseLocaleConverterTestCase.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

baselocaleconverter, baselocaleconvertertestcase, check, check, class, exception, exception, expected, locale, object, object, pattern, string, string, util

The Commons Beanutils BaseLocaleConverterTestCase.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 junit.framework.TestCase;
import java.util.Locale;
import org.apache.commons.beanutils.locale.BaseLocaleConverter;

/**
 * Base Test Case for the DecimalLocaleConverter classes. This class doesn't
 * define any real tests; it just provides useful methods for the real
 * test case classes to inherit.
 *
 * @author Niall Pemberton
 * @version $Revision: 469728 $ $Date: 2006-11-01 01:08:34 +0000 (Wed, 01 Nov 2006) $
 */

public class BaseLocaleConverterTestCase extends TestCase {


    // Original Default Locale
    protected Locale origLocale;

    // Converter
    protected BaseLocaleConverter converter;
    protected Object result;
    protected Object defaultValue;
    protected Object expectedValue;


    // Localized values
    protected Locale localizedLocale;
    protected String localizedDecimalPattern; 
    protected String localizedIntegerPattern; 
    protected String localizedDecimalValue;
    protected String localizedIntegerValue;

    // Locale values
    protected Locale defaultLocale;
    protected String defaultDecimalPattern; 
    protected String defaultIntegerPattern; 
    protected String defaultDecimalValue;
    protected String defaultIntegerValue;


    // Expected values
    protected String expectedDecimalValue;
    protected String expectedIntegerValue;

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

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

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

        // Default Locale (Use US)
        defaultLocale           = Locale.US;
        defaultDecimalPattern   = "#,###.00";
        defaultIntegerPattern   = "#,###";
        defaultDecimalValue     = "1,234.56";
        defaultIntegerValue     = "1,234";

        // Use German Locale (uses different separators to US)
        localizedLocale         = Locale.GERMAN;
        localizedDecimalPattern = "#.###,00";
        localizedIntegerPattern = "#.###";
        localizedDecimalValue   = "1.234,56";
        localizedIntegerValue   = "1.234";

        // Expected Values
        expectedDecimalValue    = "1234.56";
        expectedIntegerValue    = "1234";

        // Reset default to the one specified
        origLocale = Locale.getDefault();

        // Initialize
        converter = null;
        result = null;
        defaultValue = null;
        expectedValue= null;

        if (defaultLocale.equals(origLocale)) {
            origLocale = null;
        } else {
            // System.out.println("Changing default locale from " + origLocale + " to " + defaultLocale);
            Locale.setDefault(defaultLocale);
        }


    }

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

        converter = null;
        result = null;
        defaultValue = null;
        expectedValue= null;

        // Set the Default Locale back to the original value 
        if (origLocale != null) {
            // System.out.println("Restoring default locale to " + origLocale);
            Locale.setDefault(origLocale);
        }

    }


    // -------------------------------------------------- Generic Test Methods

    /**
     * Test Converting Value WITH a pattern
     */
    protected void convertValueWithPattern(BaseLocaleConverter converter, Object value, String pattern, Object expectedValue) {
        convertValueWithPattern(converter, "", value, pattern, expectedValue);
    }

    /**
     * Test Converting Value WITH a pattern
     */
    protected void convertValueWithPattern(BaseLocaleConverter converter, String msgId, Object value, String pattern, Object expectedValue) {

        // Convert value with no pattern
        try {
            result = converter.convert(value, pattern);
        } catch (Exception e) {
            fail("Pattern conversion threw " + msgId + " threw " + e);
        }
        assertEquals("Check conversion value with pattern " + msgId, expectedValue, result);

    }

    /**
     * Test Converting Value WITHOUT a pattern
     */
    protected void convertValueNoPattern(BaseLocaleConverter converter, Object value, Object expectedValue) {
        convertValueNoPattern(converter, "", value, expectedValue);
    }

    /**
     * Test Converting Value WITHOUT a pattern
     */
    protected void convertValueNoPattern(BaseLocaleConverter converter, String msgId, Object value, Object expectedValue) {

        // Convert value with no pattern
        try {
            result = converter.convert(value);
        } catch (Exception e) {
            fail("No Pattern conversion threw " + msgId + " threw " + e);
        }
        assertEquals("Check conversion value without pattern " + msgId, expectedValue, result);


    }

    /**
     * Test Converting Value To a spcified Type
     */
    protected void convertValueToType(BaseLocaleConverter converter, Class clazz, Object value, String pattern, Object expectedValue) {
        convertValueToType(converter, "", clazz, value, pattern, expectedValue);
    }

    /**
     * Test Converting Value To a spcified Type
     */
    protected void convertValueToType(BaseLocaleConverter converter, String msgId, Class clazz, Object value, String pattern, Object expectedValue) {

        // Convert value with no pattern
        try {
            result = converter.convert(clazz, value, pattern);
        } catch (Exception e) {
            fail("Type  conversion threw " + msgId + " threw " + e);
        }
        assertEquals("Check conversion value to type " + msgId, expectedValue, result);

    }

    /**
     * Test Converting Null value.
     */
    protected void convertNull(BaseLocaleConverter converter, Object expectedValue) {
        convertNull(converter, "", expectedValue);
    }

    /**
     * Test Converting Null value.
     */
    protected void convertNull(BaseLocaleConverter converter, String msgId, Object expectedValue) {

        // Convert value with no pattern
        try {
            result = converter.convert(null);
        } catch (Exception e) {
            fail("Null conversion " + msgId + " threw " + e);
        }

        if (expectedValue == null) {
            assertNull("Check null conversion is null " + msgId + " result="+result, result);
        } else {
            assertEquals("Check null conversion is default " + msgId, expectedValue, result);
        }

    }

    /**
     * Test Converting an invalid value.
     */
    protected void convertInvalid(BaseLocaleConverter converter, Object expectedValue) {
        convertInvalid(converter, "", expectedValue);
    }

    /**
     * Test Converting an invalid value.
     */
    protected void convertInvalid(BaseLocaleConverter converter, String msgId, Object expectedValue) {

        // Convert value with no pattern
        try {
            result = converter.convert("xyz");
            if (expectedValue == null) {
                fail("Expected ConversionException if no default value " + msgId);
            }
        } catch (Exception e) {
            if (expectedValue != null) {
                fail("Expected default value " + msgId + " threw " + e);
            }
        }

        if (expectedValue != null) {
            assertEquals("Check invalid conversion is default " + msgId, expectedValue, result);
        }

    }

    /**
     * This class isn't intended to perform any real tests; it just provides
     * methods for the real test cases to inherit. However junit complains
     * if a class named ..TestCase contains no test methods, so here we
     * define a dummy one to keep it happy.
     */
    public void testNothing() {
    }
}