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Posted to issues@commons.apache.org by "Pas Filip (JIRA)" <ji...@apache.org> on 2015/07/07 17:12:04 UTC
[jira] [Created] (LANG-1152) FastDateFormat seems to behave
differently with very large dates than simple date format
Pas Filip created LANG-1152:
-------------------------------
Summary: FastDateFormat seems to behave differently with very large dates than simple date format
Key: LANG-1152
URL: https://issues.apache.org/jira/browse/LANG-1152
Project: Commons Lang
Issue Type: Bug
Components: lang.time.*
Affects Versions: 3.x
Environment: ANY
Reporter: Pas Filip
Priority: Minor
Inconsistent behaviour compared to SimpleDateFormat.
StringIndexOutOfBoundsException using one format and no exception when using another format. (both legal).
Testcase:
import org.apache.commons.lang3.time.FastDateFormat;
import org.hamcrest.Matchers;
import org.junit.Assert;
import org.junit.Test;
import java.text.SimpleDateFormat;
import java.util.Date;
public class FastDateFormatBug {
@Test
public void testFastFormatWitLongMaxValue(){
Date date = new Date(Long.MAX_VALUE);
String dateAsString = FastDateFormat.getInstance("yyyy-MM-dd").format(date);
Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
}
@Test
public void testWeirdResultWithMaxValue(){
Date date = new Date(Long.MAX_VALUE);
String dateAsString = FastDateFormat.getInstance("dd/MM/yyyy").format(date);
Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
}
@Test
public void testSimpleFormatWithLongMaxValueWithLenientOff(){
Date date = new Date(Long.MAX_VALUE);
SimpleDateFormat fft = new SimpleDateFormat("yyyy-MM-dd");
fft.setLenient(false);
String dateAsString = fft.format(date);
Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
}
@Test
public void testSimpleFormatWithLongMaxValueWithLenientOn(){
Date date = new Date(Long.MAX_VALUE);
SimpleDateFormat fft = new SimpleDateFormat("yyyy-MM-dd");
fft.setLenient(true);
String dateAsString = fft.format(date);
Assert.assertThat(dateAsString, Matchers.equalTo("292278994-08-17"));
}
}
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