The use of invocationcount, threadpoolsize, timeout of concurrent tests in TestNG

stay testng The following annotations are used in the annotation to achieve the purpose of concurrent testing , For example, secsha, etc ：

invocationCount---- Indicates the number of executions

threadPoolSize----- Indicates the number of threads in the thread pool

timeOut------- Timeout time - millisecond

Code ：

import org.testng.annotations.Test;

public class mumu {
    private static int i = 0;

    @Test(threadPoolSize = 1, invocationCount = 10, timeOut = 1000)
    public void ThreadTest() {
        ++i;
        System.out.println("the i is -->" + i);
    }

}

What is set here is that the threads in each thread pool are 1, But the number of threads depends on CPU The number of

change

threadPoolSize =4

result ：

the i is -->3

the i is -->1
the i is -->1
the i is -->2

the i is -->7

the i is -->4

the i is -->5

the i is -->6
the i is -->8
the i is -->9