TestNG 并行测试配置 [英] TestNG Parallel Test Configuration

问题描述

使用 Java 6 上的 TestNG，这是我想在我的 Maven 项目中执行的操作:

With TestNG on Java 6 here's what I'd like to do in my Maven project:

1. 启动一个测试方法 (testAbc)，它可以使用基于队列的 DataProvider
运行多线程
2. 在 testAbc 的所有线程完成后，开始一个依赖于 testAbc (testXyz) 的测试

1. Kick off a test method (testAbc) that can run multi-threaded using a queue-based DataProvider
2. Kick off a test that relies on testAbc (testXyz) after all the threads from testAbc complete

我以为我已经正确配置了它，但我没有.

I thought I had it configured properly, but I do not.

目前我已将其配置为:

@Test ( singleThreaded = false )
public class AutomatedTest {

  @Test (
    alwaysRun = true,
    dataProviderClass = UseCaseProvider.class,
    dataProvider = "getUseCasesNoDependencies",
    skipFailedInvocations = false,
    threadPoolSize = 25
  )
  public void testAbc(UseCase useCase) {
    executeUseCase(useCase);
  }

  @Test (
    dependsOnMethods = {"testAbc"},
    dataProviderClass = UseCaseProvider.class,
    dataProvider = "getUseCasesDependencies",
    singleThreaded = true
  )
  public void testXyz(UseCase useCase) {
    executeUseCase(useCase);
  }
}

@DataProvider 提供的 testAbc 中的所有测试都需要很长时间才能运行，但最多可以同时运行 25 个(有几百个)其中).testXyz 中的所有内容都不能并行运行，因为不仅所有情况都依赖于 testAbc，而且处理对这样的线程池并不友好.

All of the tests in testAbc that are provided by the @DataProvider take a long time to run but can be run up to 25 simultaneously (there's a good few hundred of them). Everything in testXyz cannot be run in parallel as not only do all cases rely on testAbc, but the processing is just not friendly to thread pooling like that.

我的 Maven 配置设置如下:

My Maven configuration is setup as follows:

<build>
  <plugins>
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-surefire-plugin</artifactId>
      <configuration>
        <parallel>methods</parallel>
        <threadCount>25</threadCount>
      </configuration>
    </plugin>
  </plugins>
</build>

当我运行 mvn -U test 时，我没有看到我的测试实际上是并行运行的.帮助！

When I run mvn -U test I don't see my tests actually running in parallel. Help!

$ mvn -version
Apache Maven 2.2.1 (r801777; 2009-08-06 15:16:01-0400)
Java version: 1.6.0_35
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x" version: "10.7.5" arch: "x86_64" Family: "mac"

推荐答案

添加threadPoolSize

@Test ( singleThreaded = false, threadPoolSize = 5 )
public class AutomatedTest {
...

threadPoolSize 属性允许您指定应为此执行分配多少线程.

The threadPoolSize attribute allows you to specify how many threads should be allocated for this execution.

编辑

刚刚注意到您错过了invocationCount.请注意，如果未指定 invocationCount，则忽略 threadPoolSize.

Just noticed that you missed invocationCount. Please note that threadPoolSize is ignored if invocationCount is not specified.

所以请尝试保留类@Test 并更新testAbc

So please try leaving class @Test as it is and update testAbc

  @Test (
    alwaysRun = true,
    dataProviderClass = UseCaseProvider.class,
    dataProvider = "getUseCasesNoDependencies",
    skipFailedInvocations = false,
    threadPoolSize = 25,
    invocationCount = 25
  )
  public void testAbc(UseCase useCase) {
    executeUseCase(useCase);
  }

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