Fixing and adding tests for 'exec' command.

routersploit/interpreter.py

@@ -3,7 +3,6 @@ import os
 import sys
 import traceback
 import atexit
-from subprocess import call
 
 from routersploit.exceptions import RoutersploitException
 from routersploit import utils
@@ -384,8 +383,7 @@ class RoutersploitInterpreter(BaseInterpreter):
             print("\n", self.module_help)
 
     def command_exec(self, *args, **kwargs):
-        print(' '.join(args))
-        call(' '.join(args))
+        os.system(args[0])
 
     def command_exit(self, *args, **kwargs):
         raise KeyboardInterrupt

routersploit/test/test_interpreter.py

@@ -434,5 +434,10 @@ class RoutersploitInterpreterTest(RoutersploitTestCase):
         with self.assertRaises(KeyboardInterrupt):
             self.interpreter.command_exit()
 
+    @mock.patch('os.system')
+    def test_command_exec(self, mock_system):
+        self.interpreter.command_exec("foo -bar")
+        mock_system.assert_called_once_with("foo -bar")
+
 if __name__ == '__main__':
     unittest.main()