Create LineIntersectionTest.java

Author: sandeepgoudmacha

src/test/java/com/thealgorithms/geometry/LineIntersectionTest.java

@@ -0,0 +1,34 @@
+package com.thealgorithms.geometry;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class LineIntersectionTest {
+
+    @Test
+    void testIntersectingSegments() {
+        LineIntersection.Point p1 = new LineIntersection.Point(1, 1);
+        LineIntersection.Point q1 = new LineIntersection.Point(4, 4);
+        LineIntersection.Point p2 = new LineIntersection.Point(1, 4);
+        LineIntersection.Point q2 = new LineIntersection.Point(4, 1);
+        assertTrue(LineIntersection.doIntersect(p1, q1, p2, q2));
+    }
+
+    @Test
+    void testNonIntersectingSegments() {
+        LineIntersection.Point p1 = new LineIntersection.Point(1, 1);
+        LineIntersection.Point q1 = new LineIntersection.Point(2, 2);
+        LineIntersection.Point p2 = new LineIntersection.Point(3, 3);
+        LineIntersection.Point q2 = new LineIntersection.Point(4, 4);
+        assertFalse(LineIntersection.doIntersect(p1, q1, p2, q2));
+    }
+
+    @Test
+    void testCollinearOverlappingSegments() {
+        LineIntersection.Point p1 = new LineIntersection.Point(1, 1);
+        LineIntersection.Point q1 = new LineIntersection.Point(5, 5);
+        LineIntersection.Point p2 = new LineIntersection.Point(2, 2);
+        LineIntersection.Point q2 = new LineIntersection.Point(6, 6);
+        assertTrue(LineIntersection.doIntersect(p1, q1, p2, q2));
+    }
+}