Show how variables with names that seem redundant with their values can be very readable

ExampleWithExpliciteNamingTest

public class ExampleWithExpliciteNamingTest {
	private static final DateTime JANUARY_2 = utc(2000, 1, 2);
	private static final DateTime JANUARY_3 = utc(2000, 1, 3);
	private static final DateTime JANUARY_4 = utc(2000, 1, 4);

	@Test
	public void canGetRatioComparedToThePastNthDay() {
		assertThat(evaluator.evaluateVariationsWithPastNthDay(dailyPerformances(JANUARY_4, 10000.0, 0.0, JANUARY_3, 10000.0, 0.0, JANUARY_2, 1000.0, 0.0), 2, null).getValue()).isEqualTo(9.0);
		assertThat(evaluator.evaluateVariationsWithPastNthDay(dailyPerformances(JANUARY_3, 10000.0, 0.0, JANUARY_2, 1000.0, 0.0), 1, null).getValue()).isEqualTo(9.0);
		assertThat(evaluator.evaluateVariationsWithPastNthDay(dailyPerformances(JANUARY_4, 4000.0, 1000.0, JANUARY_3, 2000.0, 1000.0, JANUARY_2, 1000.0, 1000.0), 1, null).getValue()).isEqualTo(1.0);
		assertThat(evaluator.evaluateVariationsWithPastNthDay(dailyPerformances(JANUARY_4, 4000.0, 1000.0, JANUARY_3, 2000.0, 1000.0, JANUARY_2, 1000.0, 1000.0), 2, null).getValue()).isEqualTo(3.0);
	}

}