运行测试脚本时出现 java.util.concurrent.TimeoutException

Question

我在使用 vert.x Flamework(版本:“3.8.1”)时遇到一些问题。我在运行单元测试时遇到了 java.util.concurrent.TimeoutException 。没有什么会阻塞线程。我对此感到困惑。

TestMainVerticle.java

@ExtendWith(VertxExtension.class)
public class TestMainVerticle {

  @BeforeEach
  void deploy_verticle(Vertx vertx, VertxTestContext testContext) {
    vertx.deployVerticle(new MainVerticle(), testContext.succeeding(id -> testContext.completeNow()));
  }

  @Test
  void verticle_deployed(Vertx vertx, VertxTestContext testContext) throws Throwable {
    testContext.completeNow();
  }
}

主垂直

public class MainVerticle extends AbstractVerticle {


    @Override
    public void start(Promise<Void> startPromise) throws Exception {

    }
}

输出

The test execution timed out. Make sure your asynchronous code includes calls to either VertxTestContext#completeNow(), VertxTestContext#failNow() or Checkpoint#flag()
java.util.concurrent.TimeoutException: The test execution timed out. Make sure your asynchronous code includes calls to either VertxTestContext#completeNow(), VertxTestContext#failNow() or Checkpoint#flag()
    at io.vertx.junit5.VertxExtension.joinActiveTestContexts(VertxExtension.java:230)
    at io.vertx.junit5.VertxExtension.beforeTestExecution(VertxExtension.java:191)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeTestExecutionCallbacks$5(TestMethodTestDescriptor.java:155)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:169)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeTestExecutionCallbacks(TestMethodTestDescriptor.java:154)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:125)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
...

Answer 1

如果 promise 未完成，Verticle 部署永远不会完成:

public class MainVerticle extends AbstractVerticle {


    @Override
    public void start(Promise<Void> startPromise) throws Exception {
        // Complete the promise when the verticle is ready
        startPromise.complete();
    }
}