Writing method of JUnit multithreading

Junit Multithreading itself is not supported , You can use a third-party tool GroboUtils Realization .

The specific code is as follows ：

 

@Test

publicvoidLessThanLimit()throwsInterruptedException{

// Construct a Runner

TestRunnable runner =newTestRunnable(){

@Override

publicvoid runTest()throwsThrowable{

// What to do

AccessId accessId =newAccessId(serviceId,group, version);// Provide the three elements of the service to be invoked

responeData =RPCConsumer.invoke(accessId, DATA);// Call the service

System.out.println(" The response message is ："+ responeData);

}

};

int runnerCount =5;

// Rnner Array , How many concurrent .

TestRunnable[] trs =newTestRunnable[runnerCount];

for(int i =0; i < runnerCount; i++){

trs[i]= runner;

}

// For executing multithreaded test cases Runner, Put the previously defined single Runner An array of components is passed in

MultiThreadedTestRunner mttr =newMultiThreadedTestRunner(trs);

try{

// Develop and execute the contents defined in the array concurrently

mttr.runTestRunnables();

}catch(Throwable e){

e.printStackTrace();

// You can judge the abnormal information here

}

// You can judge the return value of the code here

Assert.assertEquals(DATA, responeData);

}

 

Depend on GroboUtils Two of the packages

1、 download GroboUtils The toolkit Zip Package decompression , The directory structure after decompression is as follows

2、 Copy GroboUtils-5-core.jar、core In the directory GroboTestingJUnit-1.2.1-core.jar Two jar Package to local project for dependency

 

Java Multithreading  

2018 year 11 month 5 Japan

17:36

 

java Multithreading is implemented in many ways , Once again, only one , By inheritance thread Class .

 

package test;

 

// By inheritance Thread Type implements multithreaded methods

public class ThreadDemo extends Thread {

    static int result = 0;

    public static void main(String[] args) throws InterruptedException {

        // Initialize instance , And implement run Method ,start Is to perform run Method

        ThreadDemo thread = new ThreadDemo();

        thread.start();

        // join Method means to wait for the thread to end

        thread.join();

        // The following code can achieve the same effect as the above two lines , If not run Method , Write the method name directly

        ThreadDemo thread2 = new ThreadDemo();

        thread2.start();

        thread2.join();

        System.out.println(result);

    }

 

    public void run1() {

        for (int i = 0; i < 10000; i++) {

            result = result + i;

        }

    }

 

    @Override

    public void run() {

        for (int i = 0; i < 10000; i++) {

            result = result + i;

        }

    }

}

 

Method 2

public class Test {

 

    public static void main(String[] args) {

        Thread t1 = new Thread(new Runnable() {

            @Override

            public void run() {

                // TODO

            }

        });

        Thread t2 = new Thread(new Runnable() {

            @Override

            public void run() {

                // TODO

            }

        });

        t1.start();

        t2.start();

    }

 

}

 

 

Method 3：

ExecutorService executorService = Executors.newFixedThreadPool(3);

executorService.submit(new Runnable() {

@Override

public void run() {

}

});

executorService.submit(new Runnable() {

@Override

public void run() {

}

});