/**
* The front has the points [0.1, 0.9], [0.2, 0.8], [0.3, 0.7], [0.4, 0.6]. The inverted front is
* [0.9, 0.1], [0.8, 0.2], [0.7, 0.3], [0.6, 0.4]
*/
@Test
public void shouldGetInvertedFrontReturnTheCorrectFrontIfItComposedOfFourPoints() {
int numberOfDimensions = 2;
int numberOfPoints = 4;
Point point1 = new ArrayPoint(numberOfDimensions);
point1.setDimensionValue(0, 0.1);
point1.setDimensionValue(1, 0.9);
Point point2 = new ArrayPoint(numberOfDimensions);
point2.setDimensionValue(0, 0.2);
point2.setDimensionValue(1, 0.8);
Point point3 = new ArrayPoint(numberOfDimensions);
point3.setDimensionValue(0, 0.3);
point3.setDimensionValue(1, 0.7);
Point point4 = new ArrayPoint(numberOfDimensions);
point4.setDimensionValue(0, 0.4);
point4.setDimensionValue(1, 0.6);
Front front = new ArrayFront(numberOfPoints, numberOfDimensions);
front.setPoint(0, point1);
front.setPoint(1, point2);
front.setPoint(2, point3);
front.setPoint(3, point4);
Front newFront = FrontUtils.getInvertedFront(front);
assertEquals(0.9, newFront.getPoint(0).getDimensionValue(0), EPSILON);
assertEquals(0.1, newFront.getPoint(0).getDimensionValue(1), EPSILON);
assertEquals(0.8, newFront.getPoint(1).getDimensionValue(0), EPSILON);
assertEquals(0.2, newFront.getPoint(1).getDimensionValue(1), EPSILON);
assertEquals(0.7, newFront.getPoint(2).getDimensionValue(0), EPSILON);
assertEquals(0.3, newFront.getPoint(2).getDimensionValue(1), EPSILON);
assertEquals(0.6, newFront.getPoint(3).getDimensionValue(0), EPSILON);
assertEquals(0.4, newFront.getPoint(3).getDimensionValue(1), EPSILON);
}
/** Case C: the front has the point [3.0, -2.0]. The inverted front is [0.0, 1.0] */
@Test
public void shouldGetInvertedFrontReturnTheCorrectFrontIfItComposedOfOnePointCaseC() {
int numberOfDimensions = 2;
int numberOfPoints = 1;
Point point1 = new ArrayPoint(numberOfDimensions);
point1.setDimensionValue(0, 3.0);
point1.setDimensionValue(1, -2.0);
Front front = new ArrayFront(numberOfPoints, numberOfDimensions);
front.setPoint(0, point1);
Front newFront = FrontUtils.getInvertedFront(front);
assertEquals(0.0, newFront.getPoint(0).getDimensionValue(0), EPSILON);
assertEquals(1.0, newFront.getPoint(0).getDimensionValue(1), EPSILON);
}