Update BinarySearchTest.java

src/test/java/com/nbee/solution/practice/BinarySearchTest.java

@@ -2,12 +2,14 @@ package com.nbee.solution.practice;
 
 import org.junit.Assert;
 import org.junit.Test;
+import static org.junit.jupiter.api.Assertions.*;
 
 public class BinarySearchTest {
+    private int[] nums = {1, 3, 5, 7, 9};
 
     @Test
     public void testBinarySearchBasic_Found() {
-        int[] nums = {1, 3, 5, 7, 9};
+        int[] nums = {1, 3, 5, 7, 9, 11, 13};
         int target = 5;
         int result = BinarySearch.binarySearchBasic(nums, target);
         Assert.assertEquals("Element should be found at index 2", 2, result);
@@ -48,4 +50,38 @@ public class BinarySearchTest {
         int result = BinarySearch.binarySearchBasic(nums, target);
         Assert.assertEquals("Binary search should work on decreasing arrays", 2, result);
     }
+    @Test
+    public void testBinarySearchAlternativeFound() {
+        // Test that the method correctly returns the index of an existing element
+        int target = 7;
+        int result = BinarySearch.binarySearchAlternative(nums, target);
+        assertEquals(3, result, "The target should be found at index 3");
+    }
+
+    @Test
+    public void testBinarySearchAlternativeNotFound() {
+        // Test that the method correctly returns -1 when the element is not present
+        int target = 4;
+        int result = BinarySearch.binarySearchAlternative(nums, target);
+        assertEquals(-1, result, "The target should not be found");
+    }
+
+    @Test
+    public void testBinarySearchAlternativeWithEmptyArray() {
+        // Test with an empty array
+        int[] emptyNums = new int[]{};
+        int target = 1;
+        int result = BinarySearch.binarySearchAlternative(emptyNums, target);
+        assertEquals(-1, result, "The target should not be found in an empty array");
+    }
+
+    @Test
+    public void testBinarySearchAlternativeWithSingleElement() {
+        // Test with a single element array
+        int[] singleNums = new int[]{5};
+        int target = 5;
+        int result = BinarySearch.binarySearchAlternative(singleNums, target);
+        assertEquals(0, result, "The target should be found at index 0 in a single-element array");
+    }
+
 }