@Test
public void lastNumberOfSmallSequence() {
Statistician s = new Statistician();
s.nextNumber(1.1);
assertEquals(1.1, s.getLastNumberOfSequence(), 0.0001);
}
@Test
public void lastNumberOfLargerSequence() {
Statistician s = new Statistician();
s.nextNumber(1.1);
s.nextNumber(5.1);
s.nextNumber(5.0);
assertEquals(5.0, s.getLastNumberOfSequence(), 0.0001);
}
@Test
public void lastNumberOfAnEmptySequence() {
Statistician s = new Statistician();
assertEquals(Double.NaN, s.getLastNumberOfSequence(), 0.0001);
}