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test: PointTest.java #HSFDPMUW#6391
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package com.thealgorithms.geometry; | ||
| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
| import static org.junit.jupiter.api.Assertions.assertNotNull; | ||
| import static org.junit.jupiter.api.Assertions.assertTrue; | ||
| import org.junit.jupiter.api.Test; | ||
| public class PointTest { | ||
| @Test | ||
| void testCompareTo() { | ||
| Point p1 = new Point(1, 2); | ||
| Point p2 = new Point(5, -1); | ||
| Point p3 = new Point(3, 9); | ||
| Point p4 = new Point(3, 9); | ||
| assertEquals(1, p1.compareTo(p2)); | ||
| assertEquals(-1, p2.compareTo(p3)); | ||
| assertEquals(0, p3.compareTo(p4)); | ||
| } | ||
| @Test | ||
| void testToString() { | ||
| Point p = new Point(-3, 5); | ||
| assertEquals("(-3, 5)", p.toString()); | ||
| } | ||
| @Test | ||
| void testPolarOrder() { | ||
| Point p = new Point(0, 0); | ||
| assertNotNull(p.polarOrder()); | ||
| } | ||
| @Test | ||
| void testOrientation() { | ||
| // setup points | ||
| Point pA = new Point(0, 0); | ||
| Point pB = new Point(1, 0); | ||
| Point pC = new Point(1, 1); | ||
| // test for left curve | ||
| assertEquals(1, Point.orientation(pA, pB, pC)); | ||
| // test for right curve | ||
| pB = new Point(0, 1); | ||
| assertEquals(-1, Point.orientation(pA, pB, pC)); | ||
| // test for left curve | ||
| pC = new Point(-1, 1); | ||
| assertEquals(1, Point.orientation(pA, pB, pC)); | ||
| // test for right curve | ||
| pB = new Point(1, 0); | ||
| pC = new Point(1, -1); | ||
| assertEquals(-1, Point.orientation(pA, pB, pC)); | ||
| // test for collinearity | ||
| pB = new Point(1, 1); | ||
| pC = new Point(2, 2); | ||
| assertEquals(0, Point.orientation(pA, pB, pC)); | ||
| } | ||
| @Test | ||
| void testPolarOrderCompare() { | ||
| Point ref = new Point(0, 0); | ||
| Point pA = new Point(1, 1); | ||
| Point pB = new Point(1, -1); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| pA = new Point(3, 0); | ||
| pB = new Point(2, 0); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| pA = new Point(0, 1); | ||
| pB = new Point(-1, 1); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| pA = new Point(1, 1); | ||
| pB = new Point(2, 2); | ||
| assertEquals(0, ref.polarOrder().compare(pA, pB)); | ||
| pA = new Point(1, 2); | ||
| pB = new Point(2, 1); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) > 0); | ||
| pA = new Point(2, 1); | ||
| pB = new Point(1, 2); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| pA = new Point(-1, 0); | ||
| pB = new Point(-2, 0); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| pA = new Point(2, 3); | ||
| pB = new Point(2, 3); | ||
| assertEquals(0, ref.polarOrder().compare(pA, pB)); | ||
| pA = new Point(0, 1); | ||
| pB = new Point(0, -1); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| ref = new Point(1, 1); | ||
| pA = new Point(1, 2); | ||
| pB = new Point(2, 2); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) > 0); | ||
| pA = new Point(2, 1); | ||
| pB = new Point(2, 0); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| pA = new Point(0, 1); | ||
| pB = new Point(1, 0); | ||
| assertTrue(ref.polarOrder().compare(pA, pB) < 0); | ||
| } | ||
| } |
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