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Niket Agrawal 2024-01-18 10:53:08 +05:30
parent 75951a207f
commit aee45fb149
2 changed files with 126 additions and 0 deletions
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12
core-java-modules/core-java-datetime-string-2/pom.xml
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@ -13,6 +13,14 @@
<version>0.0.1-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
@ -22,4 +30,8 @@
</plugins>
</build>
<properties>
<joda-time.version>2.12.5</joda-time.version>
</properties>
</project>

114
core-java-modules/core-java-datetime-string-2/src/test/java/com/baeldung/timestamp/CurrentTimeAsFileNameUnitTest.java Normal file
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@ -0,0 +1,114 @@
package com.baeldung.timestamp;
import static org.junit.Assert.assertTrue;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.Calendar;
import java.util.Date;
import java.util.regex.Pattern;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.junit.Test;
public class CurrentTimeAsFileNameUnitTest {
static final String TIMESTAMP_FORMAT = "yyyyMMddHHmmss";
static final DateTimeFormatter DATETIME_FORMATTER = DateTimeFormatter.ofPattern(TIMESTAMP_FORMAT);
static final SimpleDateFormat SIMPLEDATE_FORMAT = new SimpleDateFormat(TIMESTAMP_FORMAT);
@Test
public void whenUsingCalendar_thenCurrentTimeAsFileName() {
String currentTime = SIMPLEDATE_FORMAT.format(Calendar.getInstance().getTime());
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
@Test
public void whenUsingDate_thenCurrentTimeAsFileName() {
String currentTime = SIMPLEDATE_FORMAT.format(new Date());
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
@Test
public void whenUsingInstant_thenCurrentTimeAsFileName() {
String currentTime = Instant
.now()
.truncatedTo(ChronoUnit.SECONDS)
.toString()
.replaceAll("[:TZ-]", "");
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
@Test
public void whenUsingLocalDateTime_thenCurrentTimeAsFileName() {
String currentTime = LocalDateTime.now().format(DATETIME_FORMATTER);
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
@Test
public void whenUsingZonedDateTime_thenCurrentTimeAsFileName() {
String currentTime = ZonedDateTime
.now(ZoneId.of("Europe/Paris"))
.format(DATETIME_FORMATTER);
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
@Test
public void whenUsingOffsetDateTime_thenCurrentTimeAsFileName() {
String currentTime = OffsetDateTime
.of(LocalDateTime.now(), ZoneOffset.of("+01:00"))
.format(DATETIME_FORMATTER);
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
@Test
public void whenUsingJodaDateTime_thenCurrentTimeAsFileName() {
String currentTime = DateTime.now().toString(TIMESTAMP_FORMAT);
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
@Test
public void whenUsingJodaInstant_thenCurrentTimeAsFileName() {
String currentTime = DateTimeFormat
.forPattern(TIMESTAMP_FORMAT)
.print(org.joda.time.Instant.now()
.toDateTime());
String fileName = getFileName(currentTime);
assertTrue(verifyFileName(fileName));
}
String getFileName(String currentTime) {
return MessageFormat.format("{0}.txt", currentTime);
}
boolean verifyFileName(String fileName) {
return Pattern
.compile("[0-9]{14}+\\.txt", Pattern.CASE_INSENSITIVE)
.matcher(fileName)
.matches();
}
}