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import static org.junit.jupiter.api.Assertions.*;
import java.util.Arrays;
import org.junit.jupiter.api.Test;
class ClosestDistanceTest {
@Test
void test() {
int[] x = { 0, 3 };
int[] y = { 0, 4 };
double result = 5.0;
assertEquals(result, CloestDistance.minimalDistance(x, y), 0.0001);
}
@Test
void testThreePoints() {
int[] x = { 0, 3, 5 };
int[] y = { 0, 4, 6 };
double result = 2.828427;
assertEquals(result, CloestDistance.minimalDistance(x, y), 0.0001);
}
@Test
void test1() {
int[] x = { 7, 1, 4, 7 };
int[] y = { 7, 100, 8, 7 };
double result = 0.0;
assertEquals(result, CloestDistance.minimalDistance(x, y), 0.0001);
}
@Test
void test2() {
int[] x = { 4, -2, -3, -1, 2, -4, 1, -1, 3, -4, -2 };
int[] y = { 4, -2, -4, 3, 3, 0, 1, -1, -1, 2, 4 };
double result = 1.414213;
assertEquals(result, CloestDistance.minimalDistance(x, y), 0.0001);
}
@Test
void testSortPointsArray() {
int[] x = { 4, -2, -3, -1, 2, -4, 1, -1, 3, -4, -2 };
int[] y = { 4, -2, -4, 3, 3, 0, 1, -1, -1, 2, 4 };
CloestDistance.Point[] p = new CloestDistance.Point[11];
for (int i = 0; i < p.length; i++) {
p[i] = new CloestDistance.Point(x[i], y[i]);
}
Arrays.sort(p, new CloestDistance.XComparator());
assertEquals(-4, p[0].x);
assertEquals(0, p[0].y);
Arrays.sort(p, new CloestDistance.YComparator());
assertEquals(-4, p[0].y);
assertEquals(-3, p[0].x);
assertEquals(4, p[10].y);
assertEquals(4, p[10].x);
}
@Test
void testDistance() {
CloestDistance.Point p1 = new CloestDistance.Point(0, 0);
CloestDistance.Point p2 = new CloestDistance.Point(1, 1);
double result = 1.414213;
assertEquals(result, CloestDistance.distance(p1, p2), 0.0001);
}
}
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