单元测试（三）——创建多线程单元测试

• 单元测试（一）——SpringBoot创建单元测试
• 单元测试（二）——Junit4+EasyMock创建单元测试
• 单元测试（三）——创建多线程单元测试

Junit本是不支持多线程的，一个单元测试case主进程跑完，其余new出来的线程都会GG思密达。此篇mark一份在Junit中执行多线程的方法。

方案一

• 添加依赖 pom.xml

<!-- https://mvnrepository.com/artifact/net.sourceforge.groboutils/groboutils-core -->
        <dependency>
            <groupId>net.sourceforge.groboutils</groupId>
            <artifactId>groboutils-core</artifactId>
            <version>5</version>
            <scope>test</scope>
        </dependency>

测试case

@Slf4j
public class DeviceMessageSolverTest extends JUnitBaseTest {
	/**
     * deviceInfoService <br>
     */
    @Resource
    private DeviceInfoService deviceInfoService;

    /**
     * deviceMessageSolver <br>
     */
    @Resource
    private DeviceMessageSolver deviceMessageSolver;

    /**
     * list <br>
     */
    private static List<DeviceInfoBO> list;

    /**
     * appKeyArr <br>
     */
    private final String[] appKeyArr = {
            "2e2b380a56e7464aa678294c2c345545", "e2c85a1d245844fd9bdb14f0d0fc868a", "fa58f5306eb64ce094fe65fec6261587"
    };

    /**
     * Description: 测试并发修改设备上下线<br>
     * 
     * @author xubin<br>
     * @taskId <br>
     *         <br>
     */
    @Test
    public void doStatusTest() {
	try {
            log.info("测试并发修改设备上下线");
            DeviceInfoBO bo = new DeviceInfoBO();
            bo.setAppKey(appKeyArr[0]);
            PageInfo<DeviceInfoBO> page1 = deviceInfoService.queryEntityListByPage(bo, 1, DigitConst.HUNDRED);
            bo.setAppKey(appKeyArr[1]);
            PageInfo<DeviceInfoBO> page2 = deviceInfoService.queryEntityListByPage(bo, 1, DigitConst.HUNDRED);
            bo.setAppKey(appKeyArr[2]);
            PageInfo<DeviceInfoBO> page3 = deviceInfoService.queryEntityListByPage(bo, 1, DigitConst.HUNDRED);
            list = page1.getRows();
            list.addAll(page2.getRows());
            list.addAll(page3.getRows());
            log.info("已准备初始化数据：{} 条", list.size());
            //线程数
            int n = DigitConst.TEN;
            TestRunnable[] trs = new TestRunnable[n];
            for (int i = 0; i < n; i++) {
                trs[i] = new DeviceMsgTaskRunnable();
            }
            MultiThreadedTestRunner mttr = new MultiThreadedTestRunner(trs);
            mttr.runTestRunnables();
        } catch (Throwable e) {
            log.error("测试并发修改设备上下线异常", e);
            fail("测试并发修改设备上下线异常");
        }
    }
	/**
     * <Description> 线程任务<br>
     * 
     * @author xubin<br>
     * @version 1.0<br>
     * @taskId <br>
     * @CreateDate Nov 19, 2018 <br>
     */
    class DeviceMsgTaskRunnable extends TestRunnable {
		/**
         * Description: 线程执行方法<br>
         * 
         * @author xubin<br>
         * @taskId <br>
         *         <br>
         */
        @Override
        public void runTest() {
            long startTime = System.currentTimeMillis();while (true) {
                try {
                    //组装参数
                    DeviceInfoBO db = list.get((int) (Math.random() * list.size()));
                    DeviceStatusDTO deviceStatusDTO = new DeviceStatusDTO();
                    deviceStatusDTO.setAppKey(db.getAppKey());
                    deviceStatusDTO.setTimeFlag(new Date().getTime());
                    deviceStatusDTO.setDeviceCode(db.getDeviceCode());
                    if (db.getIsOnline() == MainConstant.DEVICE_CURRENT_OFFLINE) {
                        deviceStatusDTO.setStatus(true);
                    } else {
                        deviceStatusDTO.setStatus(false);
                    }
                    log.info(JSONObject.toJSONString(deviceStatusDTO));
                    deviceMessageSolver.doStatus(deviceStatusDTO);
                } catch (Exception e) {
                    log.error("线程执行异常", e.getMessage());
                }
            }
        }
    }
}

关键代码：

1.class DeviceMsgTaskRunnable extends TestRunnable
2.TestRunnable[] trs = new TestRunnable[n];
3.for (int i = 0; i < n; i++) {
	  trs[i] = new DeviceMsgTaskRunnable();
   }
4.MultiThreadedTestRunner mttr = new MultiThreadedTestRunner(trs);
5.mttr.runTestRunnables();

• 执行结果截图