Question

我有一个使用this driver进行串行通信的Java项目。驱动程序在Windows下使用dll来创建串行端口。

该项目包含几个JUnit测试，这些测试使用“Run as - ＆gt; JUnit Test”成功完成。但是，引用本机库的测试在运行ant时失败（以及不引用本机库传递的测试）。

到目前为止，我最好的猜测是将包含本机库的目录添加到java.library.path中，但是我没有成功通过build.xml文件这样做。

有人可以讲一个（干净的）解决方案吗？

这是我的build.xml：

<path id="compile.classpath">
    <fileset dir="${lib}">
        <include name="**/*.jar"/>
    </fileset>
    <fileset dir="${junit_home}">
        <include name="**/*.jar"/>
    </fileset>
</path>

<path id="test.classpath">
    <pathelement location="${bin}" />
    <fileset dir="${lib}">
         <include name="**/*.jar"/>
     </fileset>
    <fileset dir="${junit_home}">
        <include name="**/*.jar"/>
    </fileset>
</path>

<target name="compile">
    <mkdir dir="${bin}" />
    <echo Message="Compiling src folder..." />
    <javac includeantruntime="no" classpathref="compile.classpath" srcdir="${src}" destdir="${bin}" />
    <echo Message="Compiling test folder..." />
    <javac includeantruntime="no" classpathref="compile.classpath" srcdir="${test}" destdir="${bin}" />
</target>

<target name="test">
    <mkdir dir="${test.reports}" />
    <junit fork="yes" printsummary="yes" haltonfailure="yes">
        <test name="${test.class.name}" todir="${test.reports}" />
        <formatter type="xml" />
        <classpath refid="test.classpath" />
    </junit>
</target>

以下是测试报告的一部分（XML格式）：

    <testcase classname="nl.timo.comport.test.buildservertests.ComportFactoryTest" name="testGetInstance" time="0.0" />
  <testcase classname="nl.timo.comport.test.buildservertests.ComportFactoryTest" name="testCreateDefaultComport" time="0.016">
    <error message="giovynet.nativelink.SerialPort.getStateSerialPortC(Ljava/lang/String;)Ljava/lang/String;" type="java.lang.UnsatisfiedLinkError">java.lang.UnsatisfiedLinkError: giovynet.nativelink.SerialPort.getStateSerialPortC(Ljava/lang/String;)Ljava/lang/String;
    at giovynet.nativelink.SerialPort.getStateSerialPortC(Native Method)
    at giovynet.nativelink.SerialPort.getFreeSerialPort(SerialPort.java:50)
    at package.comport.GioComport.getFreeSerialPorts(Unknown Source)
    at package.comport.GioComport.findDevice(Unknown Source)
    at package.comport.GioComport.&lt;init&gt;(Unknown Source)
    at package.comport.ComportFactory.createNewPort(Unknown Source)
    at package.comport.ComportFactory.createComport(Unknown Source)
    at package.comport.test.buildservertests.ComportFactoryTest.testCreateDefaultComport(Unknown Source)
</error>
  </testcase>
  <testcase classname="nl.timo.comport.test.buildservertests.ComportFactoryTest" name="testCreateComportWithWrongSettings" time="0.0">
    <error message="giovynet.nativelink.SerialPort.getStateSerialPortC(Ljava/lang/String;)Ljava/lang/String;" type="java.lang.UnsatisfiedLinkError">java.lang.UnsatisfiedLinkError: giovynet.nativelink.SerialPort.getStateSerialPortC(Ljava/lang/String;)Ljava/lang/String;
    at giovynet.nativelink.SerialPort.getStateSerialPortC(Native Method)
    at giovynet.nativelink.SerialPort.getFreeSerialPort(SerialPort.java:50)
    at package.comport.GioComport.getFreeSerialPorts(Unknown Source)
    at package.comport.GioComport.findDevice(Unknown Source)
    at package.comport.GioComport.&lt;init&gt;(Unknown Source)
    at package.comport.ComportFactory.createNewPort(Unknown Source)
    at package.comport.ComportFactory.createComport(Unknown Source)
    at package.comport.test.buildservertests.ComportFactoryTest.testCreateComportWithWrongSettings(Unknown Source)
</error>
  </testcase>
  <system-out><![CDATA[]]></system-out>
  <system-err><![CDATA[java.lang.UnsatisfiedLinkError: no libSerialPort in java.library.path
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1738)

Answer 1

junit task in Ant，允许设置系统属性，就像其他一些任务一样。您需要将java.library.path嵌套元素中的sysproperty值指定为：

<junit fork="yes" printsummary="yes" haltonfailure="yes">
    <test name="${test.class.name}" todir="${test.reports}" />
    <formatter type="xml" />
    <classpath refid="test.classpath" />
    <sysproperty key="java.library.path" value="put your library path here"/>
</junit>

Answer 2

使用jvmarg设置库加载路径：

<junit>
  <jvmarg value="-Djava.library.path=/blah/YOURPATH"/>

如果要将目录添加到现有路径，则需要使用Ant's ability to use environment variables：

<property environment="env"/>
<junit>
  <jvmarg value="-Djava.library.path=${env.path}${path.separator}/blah/PATH"/>

如何将本机库路径添加到JUNIT任务？

2 个答案: