Installation

If you are using maven, you can add following dependency to your project.

Config

Please create unitils-local.properties, and add mail to unitils.modules. Code as following:

Example

How does it work?
There are 2 annotations:

• FixedDateTime: It freezes the date from a specific date.
• OffsetDateTime: It freezes the date from a specific amount of days/months/years from now (positive = future, negative = past).

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  @RunWith(UnitilsJUnit4TestClassRunner.class) @FixedDateTime(datetime = "30/01/2008") public class DateTimeExample1Test {         @Test     public void testTestClassDateTime() {         // the test class defines the fixed datetime as 30/01/2008, so the current datetime should be equal to that.         DateTime expected = new DateTime(2008, 1, 30, 0, 0, 0, 0);         Assert.assertEquals(expected, new DateTime());     }       @Test     @FixedDateTime     public void testFixedDateTimeDefault() throws InterruptedException {         DateTime expected = new DateTime(System.currentTimeMillis());         DateTime actual = new DateTime();           Assert.assertEquals(expected.getYear(), actual.getYear());         Assert.assertEquals(expected.getMonthOfYear(), actual.getMonthOfYear());         Assert.assertEquals(expected.getDayOfMonth(), actual.getDayOfMonth());         Assert.assertEquals(expected.getHourOfDay(), actual.getHourOfDay());         Assert.assertEquals(expected.getMinuteOfDay(), actual.getMinuteOfDay());         Assert.assertEquals(expected.getSecondOfMinute(), actual.getSecondOfMinute());       }       @Test     @FixedDateTime(datetime = "29/02/2020")     public void testTestMethodDateTime() {         // the test method defines the fixed datetime as 29/02/2020,         //so the current datetime should be equal to that.     }       @Test     @OffsetDateTime     public void testCurrentDatetime() throws InterruptedException {         //OffsetDateTime without value is the current datetime.     }       @Test     @OffsetDateTime(days = 1)     public void testOffsetDatetime() {         //the current date should be date from tomorrow.       } }