使用本机库进行Surefire JUnit测试 [英] Surefire JUnit Testing using Native Libraries

问题描述

我们在哈德森使用Maven运行Java构建过程，并使用Surefire插件执行JUnit测试，但是我遇到了一个需要本地dll的项目的单元测试问题.

We are using Maven in Hudson to run our Java build process and the Surefire plugin to execute JUnit tests however I've run into a problem with the unit tests for one project which requires native dlls.

我们看到的错误是:

测试错误:TestFormRegistrationServiceConnection(com.#productidentifierremoved#.test.RegistrationServiceTest):java.library.path中没有身份验证器

Tests in error: TestFormRegistrationServiceConnection(com.#productidentifierremoved#.test.RegistrationServiceTest): no Authenticator in java.library.path

其中Authenticator是我们需要的dll的名称. 我发现此SO帖子表示唯一设置此方法的方法是通过argLine.我们将配置修改为:

Where Authenticator is the name of the dll we require. I found this SO post which suggest that the only way to set this is through argLine. We modified our config to this:

    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-report-plugin</artifactId>
        <version>2.10</version>
        <configuration>
            <forkMode>once</forkMode>
            <argLine>-Djava.library.path=${basedir}\src\main\native\Authenticator\Release</argLine>
        </configuration>
    </plugin>

但是，如果我们包含System.out.println(System.getProperty("java.library.path"))，这仍然会产生相同的错误.我们可以看到它没有被添加到路径中.

However this still gives the same error and if we include a System.out.println(System.getProperty("java.library.path")); we can see that this is not being added to the path.

有什么想法可以解决这个问题吗?

Any ideas how we can solve this?

推荐答案

要将系统属性添加到JUnit测试中，请配置

To add a system property to the JUnit tests, configure the Maven Surefire Plugin as follows:

<build>
  <plugins>
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-surefire-plugin</artifactId>
      <configuration>
        <systemPropertyVariables>
          <java.library.path>${project.basedir}/src/main/native/Authenticator/Release</java.library.path>
        </systemPropertyVariables>
      </configuration>
    </plugin>
  </plugins>
</build>

更新:

好吧，似乎必须在具有JUnit测试的JVM启动之前设置此属性.因此，我想您在反斜杠方面遇到了问题. Java属性值中的反斜杠用于转义特殊字符，例如\t(制表符)或\r\n(Windows新行).因此，请尝试使用此方法代替您的解决方案:

Ok, it seems this property has to be set before the JVM with JUnit tests starts. So I guess that you have problem with the backslashes. Backslashes in the Java property value are used to escape special characters like \t (tabulator) or \r\n (windows new-line). So try to use this instead of your solution:

<build>
  <plugins>
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-surefire-plugin</artifactId>
      <configuration>
        <forkMode>once</forkMode>
        <argLine>-Djava.library.path=${project.basedir}/src/main/native/Authenticator/Release</argLine>
      </configuration>
    </plugin>
  </plugins>
</build>

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