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MIME4J-315 Test suite for DateTime
This is a copy of LenientDateTimeFieldTest
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chibenwa committed May 27, 2022
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package org.apache.james.mime4j.field;

import java.io.ByteArrayInputStream;
import java.nio.charset.StandardCharsets;
import java.util.Date;

import org.apache.james.mime4j.MimeException;
import org.apache.james.mime4j.dom.datetime.DateTime;
import org.apache.james.mime4j.dom.field.DateTimeField;
import org.apache.james.mime4j.field.datetime.parser.DateTimeParser;
import org.apache.james.mime4j.stream.RawField;
import org.apache.james.mime4j.stream.RawFieldParser;
import org.apache.james.mime4j.util.ByteSequence;
import org.apache.james.mime4j.util.ContentUtil;
import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;

public class DateTimeTest {

static Date parse(final String s) throws MimeException {
ByteArrayInputStream stream = new ByteArrayInputStream(s.getBytes(StandardCharsets.US_ASCII));
return DateTime.parse(stream).asDate();
}

@Test
public void testDateDST() throws Exception {
Date f = parse("Wed, 16 Jul 2008 17:12:33 +0200");
Assert.assertEquals(new Date(1216221153000L), f);
}

@Test
public void extraPDTShouldBeTolerated() throws Exception {
Date f = parse("Wed, 16 Jul 2008 17:12:33 +0200 (PDT)");
Assert.assertEquals(new Date(1216221153000L), f);
}

@Ignore
@Test
public void extraCharsShouldBeTolerated() throws Exception {
Date f = parse("Thu, 4 Oct 2001 20:12:26 -0700 (PDT),Thu, 4 Oct 2001 20:12:26 -0700");
Assert.assertEquals(new Date(1002251546000L), f);
}

@Test
public void parseShouldSupportPartialYears() throws Exception {
Date f = parse("Wed, 16 Jul 08 17:12:33 +0200");
Assert.assertEquals(new Date(1216221153000L), f);
}

@Test
public void parseShouldSupportPartialYearsFromLastCentury() throws Exception {
Date field1 = parse("16 Jul 99 17:12:33 +0200");
Date field2 = parse("16 Jul 1999 17:12:33 +0200");
Assert.assertEquals(field2.getDate(), field1.getDate());
}

@Test
public void testDateDSTNoDayOfWeek() throws Exception {
Date f = parse("16 Jul 2008 17:12:33 +0200");
Assert.assertEquals(new Date(1216221153000L), f);
}

@Test
public void testdd() throws Exception {
Date f = parse("Thu, 01 Jan 1970 12:00:00 +0000");
Assert.assertEquals(43200000L, f.getTime());
}

@Test
public void parseShouldAcceptWrongDayOfWeek() throws Exception {
// Should be Thu
Date f = parse("Fri, 01 Jan 1970 12:00:00 +0000");
Assert.assertEquals(43200000L, f.getTime());
}

@Ignore
@Test
public void testMime4j219() throws Exception {
Date f = parse("Tue, 17 Jul 2012 22:23:35.882 0000");
Assert.assertEquals(1342563815882L, f.getTime());
}

@Test
public void testDateWithExtraLeadingWhiteSpace() throws Exception {
Date f = parse(" Wed, 28 Mar 2007 13:32:39 +1000");
Assert.assertEquals(1175052759000L, f.getTime());
}

@Test
public void testDateWhenGeneralTimezone() throws Exception {
Date f = parse("Fri, 05 Jan 2018 16:18:28 Z");
Assert.assertEquals(1515169108000L, f.getTime());
}

}

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