Randomly call some methods

When testing a WebService project in the past few days, you need to write a testing tool that simulates client concurrency. It can be used to call one of the methods randomly,
In fact, the idea is very simple. First, take the random integer in [0... n], n indicates the number of all random methods, and then call
Example:

Random Methods: A, B, C, D, E, F

1system. Random random = new random ();
2int I = random. Next (1, 6 );
3 Switch (I)
4 {
5 case 1:
6 ();
7 break;
8
9 case 6:
10 F ();
11 break;
12 default:
13 break;
14}