impl/src/test/java/jakarta/faces/convert/NumberConverterTest.java

/*
 * 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 jakarta.faces.convert;

import java.math.BigInteger;
import java.util.Locale;
import jakarta.el.ValueExpression;
import jakarta.faces.component.UIInput;
import jakarta.faces.context.FacesContext;
import org.apache.myfaces.test.base.junit.AbstractFacesTestCase;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;

public class NumberConverterTest extends AbstractFacesTestCase
{
    private NumberConverter mock;

    @Override
    @BeforeEach
    public void setUp() throws Exception
    {
        super.setUp();

        mock = new NumberConverter();
    }

    @Override
    @AfterEach
    public void tearDown() throws Exception
    {
        super.tearDown();

        mock = null;
    }

    /**
     * Requires JDK locale data consistent with the hard-coded input (historically {@code java.locale.providers=COMPAT};
     * COMPAT is unavailable on newer JDKs).
     */
    @Test
    @Disabled("French currency input vs JDK locale data; enable when expectations match the runtime")
    public void testFranceLocaleWithNonBreakingSpace()
    {
        mock.setLocale(Locale.FRANCE);
        FacesContext.getCurrentInstance().getViewRoot().setLocale(Locale.GERMANY);
        UIInput input = new UIInput();
        mock.setType("currency");
        String stringValue = mock.getAsString(facesContext, input, new Double(12345.68d));
        Number number = (Number) mock.getAsObject(FacesContext.getCurrentInstance(), input, "12\u00a0345,68 \u20AC");
        Assertions.assertNotNull(number);
    }

    @Test
    @Disabled("French currency input vs JDK locale data; enable when expectations match the runtime")
    public void testFranceLocaleWithoutNonBreakingSpace()
    {
        mock.setLocale(Locale.FRANCE);
        FacesContext.getCurrentInstance().getViewRoot().setLocale(Locale.GERMANY);
        UIInput input = new UIInput();
        mock.setType("currency");
        Number number = (Number) mock.getAsObject(FacesContext.getCurrentInstance(), input, "12 345,68 \u20AC");
        Assertions.assertNotNull(number);
    }
    
    /**
     * EUR12,345.68 
     */
    @Test
    public void testUSLocaleUsingEURCurrencyCode()
    {
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.US);
        UIInput input = new UIInput();
        mock.setType("currency");
        mock.setCurrencyCode("EUR");
        Number testValue = 12345.68d;
        String stringValue = mock.getAsString(facesContext, input, testValue);
        Number number = (Number) mock.getAsObject(facesContext, input, stringValue);
        Assertions.assertNotNull(number);
        Assertions.assertEquals(testValue, number);
    }

    /**
     * 12,345.68
     */
    @Test
    public void testUKLocaleUsingEURCurrencyCode()
    {
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.UK);
        UIInput input = new UIInput();
        mock.setType("currency");
        mock.setCurrencyCode("EUR");
        Number testValue = 12345.68d;
        String stringValue = mock.getAsString(facesContext, input, testValue);
        Number number = (Number) mock.getAsObject(facesContext, input, stringValue);
        Assertions.assertNotNull(number);
        Assertions.assertEquals(testValue, number);
    }
    
    /**
     * 12.345,68 
     */
    @Test
    public void testGermanyLocaleUsingEURCurrencyCode()
    {
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.GERMANY);
        UIInput input = new UIInput();
        mock.setType("currency");
        mock.setCurrencyCode("EUR");
        Number testValue = 12345.68d;
        String stringValue = mock.getAsString(facesContext, input, testValue);
        Number number = (Number) mock.getAsObject(facesContext, input, stringValue);
        Assertions.assertNotNull(number);
        Assertions.assertEquals(testValue, number);
    }
    
    @Test
    public void testCurrencyPattern()
    {
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.US);
        UIInput input = new UIInput();
        mock.setPattern("\u00A4 ###,###.###");
        Number testValue = 12345.68d;
        String stringValue = mock.getAsString(facesContext, input, testValue);
        Number number = (Number) mock.getAsObject(facesContext, input, stringValue);
        Assertions.assertNotNull(number);
        Assertions.assertEquals(testValue, number);        
    }

    @Test
    public void testCurrencyPattern2()
    {
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.GERMANY);
        UIInput input = new UIInput();
        mock.setPattern("\u00A4 ###,###.###");
        mock.setCurrencyCode("USD"); //Since currency is EUR, but we are using USD currency code, the output is USD 12.345,68
        Number testValue = 12345.68d;
        String stringValue = mock.getAsString(facesContext, input, testValue);
        Number number = (Number) mock.getAsObject(facesContext, input, stringValue);
        Assertions.assertNotNull(number);
        Assertions.assertEquals(testValue, number);        
    }
    
    @Test
    public void testCzechLocaleWithNonBreakingSpace()
    {
        mock.setLocale(new Locale("cs"));
        mock.setIntegerOnly(true);
        mock.setGroupingUsed(true);
        FacesContext.getCurrentInstance().getViewRoot().setLocale(new Locale("cs"));
        UIInput input = new UIInput();
        String stringValue = mock.getAsString(facesContext, input, new Long(7000));
        Assertions.assertEquals("7\u00a0000", stringValue, "must return 7&NBSP000");
        
        Number number = (Number) mock.getAsObject(FacesContext.getCurrentInstance(), input, stringValue);
        Assertions.assertNotNull(number);
        Assertions.assertEquals(new Long(7000), number);
    }

    @Test
    public void testGetAsObjectWithBigInteger()
    {
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.GERMANY);
        mock.setIntegerOnly(true);
        mock.setGroupingUsed(false);
        UIInput input = new UIInput();
        facesContext.getELContext().getELResolver().setValue(facesContext.getELContext(), null,
            "bigInteger", BigInteger.ONE);
        ValueExpression valueExpression =application
            .getExpressionFactory()
            .createValueExpression(facesContext.getELContext(), "#{bigInteger}", BigInteger.class);
        input.setValueExpression("value", valueExpression);
        
        Number number = (Number) mock.getAsObject(FacesContext.getCurrentInstance(), input, "1");
        
        Assertions.assertNotNull(number);
        Assertions.assertTrue(number instanceof BigInteger);
        Assertions.assertEquals(BigInteger.ONE, number);
    }
    
    @Test
    public void testGetAsObjectWithBigIntegerAndParsePosition()
    {
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.GERMANY);
        // mock.setIntegerOnly(true); MYFACES-4508
        mock.setGroupingUsed(false);
        UIInput input = new UIInput();
        facesContext.getELContext().getELResolver().setValue(facesContext.getELContext(), null,
            "bigInteger", BigInteger.ONE);
        ValueExpression valueExpression = application
            .getExpressionFactory()
            .createValueExpression(facesContext.getELContext(), "#{bigInteger}", BigInteger.class);
        input.setValueExpression("value", valueExpression);
        
        try
        {
            Number number = (Number) mock.getAsObject(FacesContext.getCurrentInstance(), input, "1,0.0,00.00");
            Assertions.fail();
        }
        catch (ConverterException e)
        {
            // expected
        }
    }

    @Test
    public void testCzechLocaleNbspGroupingStripsZeroWidthWhitespace()
    {
        mock.setLocale(new Locale("cs"));
        mock.setIntegerOnly(true);
        mock.setGroupingUsed(true);
        FacesContext.getCurrentInstance().getViewRoot().setLocale(new Locale("cs"));
        UIInput input = new UIInput();
        Number number = (Number) mock.getAsObject(FacesContext.getCurrentInstance(), input,
                "7\u200b\u00a0000");
        Assertions.assertNotNull(number);
        Assertions.assertEquals(7000L, number.longValue());
    }

    @Test
    public void testGetAsObjectParseIntOnly(){
        facesContext.getViewRoot().setLocale(Locale.US);
        mock.setLocale(Locale.US);
        mock.setIntegerOnly(true);
        UIInput input = new UIInput();
        
        try
        {
            Number number = (Number) mock.getAsObject(FacesContext.getCurrentInstance(), input, "1,234.56");
            Assertions.assertEquals(number.intValue(), 1234);
        }
        catch (ConverterException e)
        {
            Assertions.fail();
        }
    }
}