test using rand numbers

Maths/FindMin.java

@@ -1,11 +1,26 @@
 package Maths;
 
+import java.util.Arrays;
+import java.util.Random;
+
 public class FindMin {
 
-    //Driver
+    /**
+     * Driver Code
+     */
     public static void main(String[] args) {
-        int[] array = {2, 4, 9, 7, 19, 94, 5};
-        assert findMin(array) == 2;
+        Random random = new Random();
+
+        /* random size */
+        int size = random.nextInt(100) + 1;
+        int[] array = new int[size];
+
+        /* init array with random numbers */
+        for (int i = 0; i < size; i++) {
+            array[i] = random.nextInt() % 100;
+        }
+
+        assert Arrays.stream(array).min().getAsInt() == findMin(array);
     }
 
     /**