/**
* Confirm that the equals method can distinguish all the required fields.
*/
public void testEquals() {
XYInterval i1 = new XYInterval(1.0, 2.0, 3.0, 2.5, 3.5);
XYInterval i2 = new XYInterval(1.0, 2.0, 3.0, 2.5, 3.5);
assertEquals(i1, i2);
i1 = new XYInterval(1.1, 2.0, 3.0, 2.5, 3.5);
assertFalse(i1.equals(i2));
i2 = new XYInterval(1.1, 2.0, 3.0, 2.5, 3.5);
assertTrue(i1.equals(i2));
i1 = new XYInterval(1.1, 2.2, 3.0, 2.5, 3.5);
assertFalse(i1.equals(i2));
i2 = new XYInterval(1.1, 2.2, 3.0, 2.5, 3.5);
assertTrue(i1.equals(i2));
i1 = new XYInterval(1.1, 2.2, 3.3, 2.5, 3.5);
assertFalse(i1.equals(i2));
i2 = new XYInterval(1.1, 2.2, 3.3, 2.5, 3.5);
assertTrue(i1.equals(i2));
i1 = new XYInterval(1.1, 2.2, 3.3, 2.6, 3.5);
assertFalse(i1.equals(i2));
i2 = new XYInterval(1.1, 2.2, 3.3, 2.6, 3.5);
assertTrue(i1.equals(i2));
i1 = new XYInterval(1.1, 2.2, 3.3, 2.6, 3.6);
assertFalse(i1.equals(i2));
i2 = new XYInterval(1.1, 2.2, 3.3, 2.6, 3.6);
assertTrue(i1.equals(i2));
}