PointTest.java

package com.github.davidmoten.rtree.geometry;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.Test;

public class PointTest {

	private static final double PRECISION = 0.000001;

	@Test
	public void testCoordinates() {
		Point point = Geometries.point(1, 2);
		assertEquals(1, point.x(), PRECISION);
		assertEquals(2, point.y(), PRECISION);
	}

	@Test
	public void testDistanceToRectangle() {
		Point p1 = Geometries.point(1, 2);
		Rectangle r = Geometries.rectangle(4, 6, 4, 6);
		assertEquals(5, p1.distance(r), PRECISION);
	}

	@Test
	public void testDistanceToPoint() {
		Point p1 = Geometries.point(1, 2);
		Point p2 = Geometries.point(4, 6);
		assertEquals(5, p1.distance(p2), PRECISION);
	}

	@Test
	public void testMbr() {
		Point p = Geometries.point(1, 2);
		Point p2 = Geometries.point(1, 2);
		assertEquals(p, p2);
	}

	@Test
	public void testPointIntersectsItself() {
		Point p = Geometries.point(1, 2);
		assertTrue(p.distance(p.mbr()) == 0);
	}

	@Test
	public void testIntersectIsFalseWhenPointsDiffer() {
		Point p1 = Geometries.point(1, 2);
		Point p2 = Geometries.point(1, 2.000001);
		assertFalse(p1.distance(p2.mbr()) == 0);
	}

	@Test
	public void testEquality() {
		Point p1 = Geometries.point(1, 2);
		Point p2 = Geometries.point(1, 2);
		assertTrue(p1.equals(p2));
	}

	@Test
	public void testInequality() {
		Point p1 = Geometries.point(1, 2);
		Point p2 = Geometries.point(1, 3);
		assertFalse(p1.equals(p2));
	}

	@Test
	public void testInequalityToNull() {
		Point p1 = Geometries.point(1, 2);
		assertFalse(p1.equals(null));
	}

	@Test
	public void testHashCode() {
		Point p = Geometries.point(1, 2);
		assertEquals(-260045887, p.hashCode());
	}

	@Test
	public void testDoesNotContain() {
		Point p = Geometries.point(1, 2);
		assertFalse(p.contains(1, 3));
	}
	
	@Test
	public void testContains() {
		Point p = Geometries.point(1, 2);
		assertTrue(p.contains(1, 2));
	}
}