Added another type of test environment

PART_1/prep_env

@@ -25,8 +25,12 @@ def create_testfiles_rand(dir):
 
 def create_testfiles_diff(dir):
         for x in range(1, 6):
-                filename = 'test' + str(x) + '.txt'
-                with open(os.path.join(dir, filename), 'w'):
+		dir1 = ''.join(random.sample((string.ascii_uppercase+string.digits),6))
+                finaldir = os.path.join(dir, dir1)
+		if not os.path.exists(finaldir):
+                	os.makedirs(finaldir)
+		filename = 'test'
+                with open(os.path.join(finaldir, filename), 'w'):
                         pass
 
 if __name__=="__main__":
@@ -38,5 +42,5 @@ if __name__=="__main__":
 		create_testfiles_seq(testdir)
 	if args.type == 'rand':
                 create_testfiles_rand(testdir)
-	if args.type == 'seq':
+	if args.type == 'diff':
                 create_testfiles_diff(testdir)