import org.fest.assertions.api.JodaTimeAssertions; import org.joda.time.DateTime; DateTime dateTime = new DateTime(); JodaTimeAssertions.assertThat(dateTime).isToday(); import org.fest.assertions.api.JodaTimeAssertions; import org.joda.time.DateTime; DateTime dateTime = new DateTime(); JodaTimeAssertions.assertThat(dateTime).isToday(); JodaTimeAssertions.assertThat(dateTime).isAfterOrEqualTo(DateTime.now().minusHours(1)); JodaTimeAssertions.assertThat(dateTime).isBeforeOrEqualTo(DateTime.now().plusDays(3)); import org.fest.assertions.api.JodaTimeAssertions; import org.joda.time.DateTime; public class CustomAssertions { public static void assertIsLeapYear(DateTime dateTime) { JodaTimeAssertions.assertThat(dateTime).isExactlyInstanceOf(DateTime.class); JodaTimeAssertions.assertThat(dateTime.getYear() % 4).isEqualTo(0); } } DateTime dateTime = new DateTime().withYear(2020); CustomAssertions.assertIsLeapYear(dateTime); <dependency> <groupId>org.easytesting</groupId> <artifactId>fest-assert</artifactId> <version>1.4</version> <scope>test</scope> </dependency> <dependency> <groupId>org.easytesting</groupId> <artifactId>fest-assert-joda-time</artifactId> <version>2.0M10</version> <scope>test</scope> </dependency> import org.fest.assertions.api.JodaTimeAssertions; import org.joda.time.DateTime;