DateConverterForApplibDateTest.java

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 *  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
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 *
 *        http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.isis.viewer.wicket.ui.components.scalars.isisapplib;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

import java.util.TimeZone;

import org.jmock.Expectations;
import org.jmock.auto.Mock;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

import org.apache.isis.applib.value.Date;
import org.apache.isis.core.unittestsupport.jmocking.JUnitRuleMockery2;
import org.apache.isis.core.unittestsupport.jmocking.JUnitRuleMockery2.Mode;
import org.apache.isis.viewer.wicket.model.isis.WicketViewerSettings;

public class DateConverterForApplibDateTest {

    @Rule
    public JUnitRuleMockery2 context = JUnitRuleMockery2.createFor(Mode.INTERFACES_AND_CLASSES);

    @Mock
    private WicketViewerSettings settings;

    private TimeZone timezone;

    @Before
    public void setUp() throws Exception {
        context.checking(new Expectations() {
            {
                allowing(settings).getDatePattern();
                will(returnValue("yyyy-MM-dd"));
            }
        });
    }
    
    @Before
    public void fixTimezone() throws Exception {
        timezone = TimeZone.getDefault();
        TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
    }
    
    @Before
    public void restoreTimezone() throws Exception {
        TimeZone.setDefault(timezone);
    }
    
    @Test
    public void roundtripWhenParsingDateFormat() {
        final DateConverterForApplibDate converter = new DateConverterForApplibDate(settings, 0);
        final Date dt = converter.convertToObject("2013-05-11", null);
        assertThat(dt, is(new Date(2013, 05, 11)));
        
        final String str = converter.convertToString(dt, null);
        assertThat(str, is("2013-05-11"));
    }

    @Test
    public void roundtripWhenParsingDateFormatWithAdjustBy() {
        final DateConverterForApplibDate converter = new DateConverterForApplibDate(settings, -1);
        final Date dt = converter.convertToObject("2013-05-11", null);
        assertThat(dt, is(new Date(2013, 05, 12)));
        
        final String str = converter.convertToString(dt, null);
        assertThat(str, is("2013-05-11"));
    }

}