impl/src/test/java/jakarta/faces/convert/DateTimeConverterTest.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.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalTime;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

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.Test;

public class DateTimeConverterTest extends AbstractFacesTestCase
{
    private DateTimeConverter mock;

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

        mock = new DateTimeConverter();
        mock.setTimeZone(TimeZone.getDefault());
        FacesContext.getCurrentInstance().getViewRoot().setLocale(Locale.GERMANY);

    }

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

        mock = null;
    }

    /*
     * Test method for 'jakarta.faces.component.UIComponentBase.getAsObject()'
     */
    @Test
    public void testGetAsObject()
    {

        UIInput input = new UIInput();

        mock.setPattern("MM/dd/yyyy");

        // should trow a ConverterException
        try
        {
            mock.getAsObject(FacesContext.getCurrentInstance(), input, "15/15/15");

            Assertions.assertTrue(false, "this date should not be parsable - and it is, so this is wrong.");
        }
        catch (ConverterException e)
        {

        }

        // should not trow a ConverterException
        try
        {
            Date date = (Date) mock.getAsObject(FacesContext.getCurrentInstance(), input, "12/01/01");

            SimpleDateFormat format = new SimpleDateFormat("MM/dd/yy");
            format.setTimeZone(TimeZone.getDefault());

            String str = format.format(date);

            Assertions.assertEquals("12/01/01", str);

            format = new SimpleDateFormat("MM/dd/yyyy");
            format.setTimeZone(TimeZone.getDefault());

            str = format.format(date);

            Assertions.assertEquals("12/01/0001", str);
        }
        catch (ConverterException e)
        {
            Assertions.assertTrue(false, "this date should not be parsable - and it is, so this is wrong.");
        }
    }

    @Test
    public void testLocalDateParsesRegularSpacesWhenLocaleUsesFixedWidthWhitespace()
    {
        UIInput input = new UIInput();
        mock.setType("localDate");
        mock.setLocale(Locale.FRANCE);
        mock.setDateStyle("short");
        LocalDate expected = LocalDate.of(2024, 6, 15);
        String formatted = mock.getAsString(facesContext, input, expected);
        String withAsciiSpaces = formatted.replace('\u202f', ' ').replace('\u00a0', ' ');
        Object parsed = mock.getAsObject(facesContext, input, withAsciiSpaces);
        Assertions.assertEquals(expected, parsed);
    }

    @Test
    public void testLocalTimeStripsZeroWidthWhitespaceFromInput()
    {
        UIInput input = new UIInput();
        mock.setType("localTime");
        mock.setLocale(Locale.GERMANY);
        mock.setTimeStyle("short");
        LocalTime expected = LocalTime.of(14, 30);
        String formatted = mock.getAsString(facesContext, input, expected);
        Assertions.assertFalse(formatted.isEmpty());
        String withZw = formatted.charAt(0) + "\u200b" + formatted.substring(1);
        Object parsed = mock.getAsObject(facesContext, input, withZw);
        Assertions.assertEquals(expected, parsed);
    }
}