Question

如何在真正的分叉VM中执行测试的每个方法？ VM真正意味着关闭（并且触发了关闭挂钩），并且VM之间不共享系统属性。

我使用以下Maven surefire配置。

<configuration>
     <reuseForks>false</reuseForks>
     <parallel>methods</parallel>
     <threadCount>1</threadCount>
     <perCoreThreadCount>false</perCoreThreadCount>
 </configuration>

以下测试。

public class ConcurrentIT {

    private static void test(String counter) throws InterruptedException {
        Runtime.getRuntime().addShutdownHook(
            new Thread(() -> System.out.println("Checks if the shutdown hooks are triggered"))
        );
        System.out.println("PID is " + ManagementFactory.getRuntimeMXBean().getName()
            + " with the property before " + System.getProperty("toto"));
        System.setProperty("toto", counter);
        TimeUnit.SECONDS.sleep(1L);
        System.out.println("Counter is " + counter
            + " and the property value is " + System.getProperty("toto"));
    }

    @Test
    public void one() throws InterruptedException {
        test("1");
    }

    @Test
    public void two() throws InterruptedException {
        test("2");
    }


    @Test
    public void three() throws InterruptedException {
        test("3");
    }

    @Test
    public void four() throws InterruptedException {
        test("4");
    }
}

预期输出应如下所示（并使用Intellij的fork选项工作）。

PID is 94969@Nicolass-MacBook-Pro.local with the property before null
Counter is 1 and the property value is 1
Checks if the shutdown hooks are triggered
PID is 94971@Nicolass-MacBook-Pro.local with the property before null
Counter is 2 and the property value is 2
Checks if the shutdown hooks are triggered
PID is 94972@Nicolass-MacBook-Pro.local with the property before null
Counter is 4 and the property value is 4
Checks if the shutdown hooks are triggered
PID is 94973@Nicolass-MacBook-Pro.local with the property before null
Counter is 3 and the property value is 3
Checks if the shutdown hooks are triggered

虽然目前的输出如下。

PID is 95773@Nicolass-MacBook-Pro.local with the property before null
Counter is 1 and the property value is 1
PID is 95773@Nicolass-MacBook-Pro.local with the property before 1
Counter is 2 and the property value is 2
PID is 95773@Nicolass-MacBook-Pro.local with the property before 2
Counter is 4 and the property value is 4
PID is 95773@Nicolass-MacBook-Pro.local with the property before 4
Counter is 3 and the property value is 3

使用Maven在真正的分叉VM中执行JUnit

0 个答案: