Add tests to cover private constructor and strip loop condition

Author: aditya-7562

src/test/java/com/thealgorithms/randomized/RandomizedClosestPairTest.java

@@ -1,6 +1,11 @@
 package com.thealgorithms.randomized;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
 
 import com.thealgorithms.randomized.RandomizedClosestPair.Point;
 import org.junit.jupiter.api.Test;
@@ -9,22 +14,41 @@ public class RandomizedClosestPairTest {
 
     @Test
     public void testFindClosestPairDistance() {
-        Point[] points = {new Point(1, 1), new Point(2, 2), new Point(3, 3), new Point(8, 8), new Point(13, 13)};
+        Point[] points = { new Point(1, 1), new Point(2, 2), new Point(3, 3), new Point(8, 8), new Point(13, 13) };
         double result = RandomizedClosestPair.findClosestPairDistance(points);
         assertEquals(Math.sqrt(2), result, 0.00001);
     }
 
     @Test
     public void testWithIdenticalPoints() {
-        Point[] points = {new Point(0, 0), new Point(0, 0), new Point(1, 1)};
+        Point[] points = { new Point(0, 0), new Point(0, 0), new Point(1, 1) };
         double result = RandomizedClosestPair.findClosestPairDistance(points);
         assertEquals(0.0, result, 0.00001);
     }
 
     @Test
     public void testWithDistantPoints() {
-        Point[] points = {new Point(0, 0), new Point(5, 0), new Point(10, 0)};
+        Point[] points = { new Point(0, 0), new Point(5, 0), new Point(10, 0) };
         double result = RandomizedClosestPair.findClosestPairDistance(points);
         assertEquals(5.0, result, 0.00001);
     }
+
+    @Test
+    public void testPrivateConstructor() throws Exception {
+        Constructor<RandomizedClosestPair> constructor = RandomizedClosestPair.class.getDeclaredConstructor();
+        constructor.setAccessible(true);
+        assertThrows(InvocationTargetException.class, constructor::newInstance);
+    }
+
+    @Test
+    public void testStripConditionCoverage() {
+        Point[] points = {
+                new Point(0, 0),
+                new Point(0.001, 0.001),
+                new Point(0.002, 0.002)
+        };
+        double result = RandomizedClosestPair.findClosestPairDistance(points);
+        assertTrue(result < 0.01); // distance should be covered by strip logic
+    }
+
 }