java 如何为线程池执行器配置(AsyncConfig)编写junit测试？

x8diyxa7 于 2023-02-28 发布在 Java

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下面是我对线程池执行器的配置-

@Configuration
@EnableAsync
public class AsyncConfig {

    @Bean(name = "asyncExecutor")
    public Executor asyncExecutor() {   //should not return null
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(30);
        executor.setMaxPoolSize(30);
        executor.setQueueCapacity(1000);
        executor.setThreadNamePrefix("Async-");
        executor.initialize();
        return executor;
    }
}

我需要写一个相同的单元测试。我知道如何写服务和控制器的单元测试，但作为一个新手，我不确定在配置的情况下测试什么。例如，在上面的代码中，我可以验证函数的返回值不为空。但我也不知道如何做，因为我在项目中没有调用“asyncExecutor”函数的位置。我所做的一切就是用

@Async("asyncExecutor")

请帮我这个，也任何其他的东西，我可以测试相同的

Java

来源：https://stackoverflow.com/questions/75578354/how-do-i-write-the-junit-test-for-a-thread-pool-executor-configuration-asynccon

1条答案

按热度按时间

nnvyjq4y1#

您可以使用JUnit和Mockito为该配置Bean编写单元测试。

import static org.junit.jupiter.api.Assertions.assertNotNull;

import java.util.concurrent.Executor;

import org.junit.jupiter.api.Test;
import org.mockito.Mockito;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

public class AsyncConfigTest {

    @Test
    public void testAsyncExecutor() {
        AsyncConfig asyncConfig = new AsyncConfig();
        Executor executor = asyncConfig.asyncExecutor();
        assertNotNull(executor);

        // Verify the executor properties
        ThreadPoolTaskExecutor threadPoolTaskExecutor = (ThreadPoolTaskExecutor) executor;
        assertEquals(30, threadPoolTaskExecutor.getCorePoolSize());
        assertEquals(30, threadPoolTaskExecutor.getMaxPoolSize());
        assertEquals(1000, threadPoolTaskExecutor.getQueueCapacity());
        assertEquals("Async-", threadPoolTaskExecutor.getThreadNamePrefix());
    }

}

莫奇托要嘲笑ThreadPoolTaskExecutor

import static org.mockito.Mockito.verify;

import org.junit.jupiter.api.Test;
import org.mockito.Mockito;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

public class MyServiceTest {

    @Test
    public void testAsyncMethod() {
        // Create a mock of ThreadPoolTaskExecutor
        ThreadPoolTaskExecutor executorMock = Mockito.mock(ThreadPoolTaskExecutor.class);
        MyService myService = new MyService(executorMock);

        // Call the async method
        myService.doAsyncTask();

        // Verify that the executor was used
        verify(executorMock).execute(Mockito.any(Runnable.class));
    }

}

在前面的测试中，您创建了一个模拟ThreadPoolTaskExecutor对象并将其传递给MyService类，然后在MyService类上调用一个异步方法并检查执行器是否用于执行异步任务。

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java 如何为线程池执行器配置(AsyncConfig)编写junit测试？

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