/*
* Copyright 2002-2012 the original author or authors.
*
* Licensed 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 org.springframework.format.datetime.standard;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.util.Locale;
import java.util.TimeZone;
import org.junit.Test;
import org.springframework.format.annotation.DateTimeFormat.ISO;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
/**
* @author Phillip Webb
* @author Sam Brannen
*/
public class DateTimeFormatterFactoryTests {
// Potential test timezone, both have daylight savings on October 21st
private static final TimeZone ZURICH = TimeZone.getTimeZone("Europe/Zurich");
private static final TimeZone NEW_YORK = TimeZone.getTimeZone("America/New_York");
// Ensure that we are testing against a timezone other than the default.
private static final TimeZone TEST_TIMEZONE = ZURICH.equals(TimeZone.getDefault()) ? NEW_YORK : ZURICH;
private DateTimeFormatterFactory factory = new DateTimeFormatterFactory();
private LocalDateTime dateTime = LocalDateTime.of(2009, 10, 21, 12, 10, 00, 00);
@Test
public void createDateTimeFormatter() throws Exception {
assertThat(factory.createDateTimeFormatter().toString(), is(equalTo(DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM).toString())));
}
@Test
public void createDateTimeFormatterWithPattern() throws Exception {
factory = new DateTimeFormatterFactory("yyyyMMddHHmmss");
DateTimeFormatter formatter = factory.createDateTimeFormatter();
assertThat(formatter.format(dateTime), is("20091021121000"));
}
@Test
public void createDateTimeFormatterWithNullFallback() throws Exception {
DateTimeFormatter formatter = factory.createDateTimeFormatter(null);
assertThat(formatter, is(nullValue()));
}
@Test
public void createDateTimeFormatterWithFallback() throws Exception {
DateTimeFormatter fallback = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG);
DateTimeFormatter formatter = factory.createDateTimeFormatter(fallback);
assertThat(formatter, is(sameInstance(fallback)));
}
@Test
public void createDateTimeFormatterInOrderOfPropertyPriority() throws Exception {
factory.setStylePattern("SS");
assertThat(applyLocale(factory.createDateTimeFormatter()).format(dateTime), is("10/21/09 12:10 PM"));
factory.setIso(ISO.DATE);
assertThat(applyLocale(factory.createDateTimeFormatter()).format(dateTime), is("2009-10-21"));
factory.setPattern("yyyyMMddHHmmss");
assertThat(factory.createDateTimeFormatter().format(dateTime), is("20091021121000"));
}
@Test
public void createDateTimeFormatterWithTimeZone() throws Exception {
factory.setPattern("yyyyMMddHHmmss Z");
factory.setTimeZone(TEST_TIMEZONE);
ZoneId dateTimeZone = TEST_TIMEZONE.toZoneId();
ZonedDateTime dateTime = ZonedDateTime.of(2009, 10, 21, 12, 10, 00, 00, dateTimeZone);
String offset = (TEST_TIMEZONE.equals(NEW_YORK) ? "-0400" : "+0200");
assertThat(factory.createDateTimeFormatter().format(dateTime), is("20091021121000 " + offset));
}
private DateTimeFormatter applyLocale(DateTimeFormatter dateTimeFormatter) {
return dateTimeFormatter.withLocale(Locale.US);
}
}