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tests date without time

This commit is contained in:
Marcos Lopez Gonzalez 2018-06-24 20:23:43 +02:00
parent 914859d629
commit 6f125f2fe2
1 changed files with 30 additions and 18 deletions
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48
core-java/src/test/java/com/baeldung/date/DateWithoutTimeUnitTest.java
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@ -6,12 +6,11 @@ import org.junit.Test;
import java.text.ParseException;
import java.time.LocalDate;
import java.time.OffsetDateTime;
import java.time.temporal.TemporalField;
import java.util.Calendar;
import java.util.Date;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertNotEquals;
public class DateWithoutTimeUnitTest {
@ -30,18 +29,21 @@ public class DateWithoutTimeUnitTest {
assertEquals(0, calendar.get(Calendar.SECOND));
assertEquals(0, calendar.get(Calendar.MILLISECOND));
// now check the difference with the current Date with time is less than a day.
assertTrue(new Date().getTime() - dateWithoutTime.getTime() < MILLISECONDS_PER_DAY);
// we get the day of the date
int day = calendar.get(Calendar.DAY_OF_MONTH);
// if we add the mills of one day minus 1 we should get the same day
calendar.setTimeInMillis(dateWithoutTime.getTime() + MILLISECONDS_PER_DAY - 1);
assertEquals(day, calendar.get(Calendar.DAY_OF_MONTH));
// if we add one full day in millis we should get a different day
calendar.setTimeInMillis(dateWithoutTime.getTime() + MILLISECONDS_PER_DAY);
assertNotEquals(day, calendar.get(Calendar.DAY_OF_MONTH));
}
@Test
public void whenGettingDateWithoutTimeUsingFormat_thenReturnDateWithoutTime() {
Date dateWithoutTime = null;
try {
dateWithoutTime = DateWithoutTime.getDateWithoutTimeUsingFormat();
} catch (ParseException e) {
Assert.fail();
}
public void whenGettingDateWithoutTimeUsingFormat_thenReturnDateWithoutTime() throws ParseException {
Date dateWithoutTime = DateWithoutTime.getDateWithoutTimeUsingFormat();
// first check the time is set to 0
Calendar calendar = Calendar.getInstance();
@ -52,8 +54,16 @@ public class DateWithoutTimeUnitTest {
assertEquals(0, calendar.get(Calendar.SECOND));
assertEquals(0, calendar.get(Calendar.MILLISECOND));
// now check the difference with the current Date with time is less than a day.
assertTrue(new Date().getTime() - dateWithoutTime.getTime() < MILLISECONDS_PER_DAY);
// we get the day of the date
int day = calendar.get(Calendar.DAY_OF_MONTH);
// if we add the mills of one day minus 1 we should get the same day
calendar.setTimeInMillis(dateWithoutTime.getTime() + MILLISECONDS_PER_DAY - 1);
assertEquals(day, calendar.get(Calendar.DAY_OF_MONTH));
// if we add one full day in millis we should get a different day
calendar.setTimeInMillis(dateWithoutTime.getTime() + MILLISECONDS_PER_DAY);
assertNotEquals(day, calendar.get(Calendar.DAY_OF_MONTH));
}
@Test
@ -69,12 +79,14 @@ public class DateWithoutTimeUnitTest {
.getOffset())
.toEpochMilli();
Calendar calendar = Calendar.getInstance();
// if we add the millis of one day minus 1 we should get the same day
calendar.setTimeInMillis(millisLocalDate + MILLISECONDS_PER_DAY - 1);
assertEquals(localDate.getDayOfMonth(), calendar.get(Calendar.DAY_OF_MONTH));
// get current millis from Date with time
long millisDate = new Date().getTime();
// the difference in time has to be less than a day
assertTrue(millisDate - millisLocalDate < MILLISECONDS_PER_DAY);
// if we add one full day in millis we should get a different day
calendar.setTimeInMillis(millisLocalDate + MILLISECONDS_PER_DAY);
assertNotEquals(localDate.getDayOfMonth(), calendar.get(Calendar.DAY_OF_MONTH));
}
}