Added tests for comb_sort.cpp

sorting/comb_sort.cpp

@@ -17,6 +17,7 @@
 
 #include <algorithm>
 #include <iostream>
+#include <cassert>
 
 /**
  *
@@ -69,8 +70,26 @@ void CombSort(int *arr, int l, int r) {
     }
 }
 
+void tests() {
+  /// Test 1
+  int arr1[10] = {34, 56, 6, 23, 76, 34, 76, 343, 4, 76};
+  CombSort(arr1, 0, 10);
+  assert(std::is_sorted(arr1, arr1 + 10));
+  std::cout << "Test 1 passed\n";
+
+  /// Test 2
+  int arr2[8] = {-6, 56, -45, 56, 0, -1, 8, 8};
+  CombSort(arr2, 0, 8);
+  assert(std::is_sorted(arr2, arr2 + 8));
+  std::cout << "Test 2 Passed\n";
+}
+
 /** Main function */
 int main() {
+  /// Running predefined tests
+  tests();
+
+  /// For user interaction
   int n;
   std::cin >> n;
   int *arr = new int[n];