如何设置Ant任务以生成Emma代码覆盖率报告?
答案 0 :(得分:14)
回答有关源和已检测目录的位置的问题(这些目录可以切换到您的标准目录结构):
<property file="build.properties" />
<property name="source" location="src/main/java" />
<property name="test.source" location="src/test/java" />
<property name="target.dir" location="target" />
<property name="target" location="${target.dir}/classes" />
<property name="test.target" location="${target.dir}/test-classes" />
<property name="instr.target" location="${target.dir}/instr-classes" />
类路径:
<path id="compile.classpath">
<fileset dir="lib/main">
<include name="*.jar" />
</fileset>
</path>
<path id="test.compile.classpath">
<path refid="compile.classpath" />
<pathelement location="lib/test/junit-4.6.jar" />
<pathelement location="${target}" />
</path>
<path id="junit.classpath">
<path refid="test.compile.classpath" />
<pathelement location="${test.target}" />
</path>
首先,您需要设置Ant可以找到Emma库的位置:
<path id="emma.lib" >
<pathelement location="${emma.dir}/emma.jar" />
<pathelement location="${emma.dir}/emma_ant.jar" />
</path>
然后导入任务:
<taskdef resource="emma_ant.properties" classpathref="emma.lib" />
然后检测代码:
<target name="coverage.instrumentation">
<mkdir dir="${instr.target}"/>
<mkdir dir="${coverage}"/>
<emma>
<instr instrpath="${target}" destdir="${instr.target}" metadatafile="${coverage}/metadata.emma" mode="copy">
<filter excludes="*Test*"/>
</instr>
</emma>
<!-- Update the that will run the instrumented code -->
<path id="test.classpath">
<pathelement location="${instr.target}"/>
<path refid="junit.classpath"/>
<pathelement location="${emma.dir}/emma.jar"/>
</path>
</target>
然后使用适当的VM参数运行目标,如:
<jvmarg value="-Demma.coverage.out.file=${coverage}/coverage.emma" />
<jvmarg value="-Demma.coverage.out.merge=true" />
最后生成您的报告:
<target name="coverage.report" depends="coverage.instrumentation">
<emma>
<report sourcepath="${source}" depth="method">
<fileset dir="${coverage}" >
<include name="*.emma" />
</fileset>
<html outfile="${coverage}/coverage.html" />
</report>
</emma>
</target>
答案 1 :(得分:2)
User Guide has a good example of how to set up your build script,这样您不仅可以将执行中的已检测代码分开,而且还包含在同一<target>
中,这样您就不必运行一系列不同的目标,但是你可以做一些像ant emma tests
这样的事情(例如ant tests
是你正常运行单位测试的方式。)
以下是他们的例子:
<target name="emma" description="turns on EMMA instrumentation/reporting" >
<property name="emma.enabled" value="true" />
<!-- EMMA instr class output directory: -->
<property name="out.instr.dir" value="${basedir}/outinstr" />
<mkdir dir="${out.instr.dir}" />
</target>
<target name="run" depends="init, compile" description="runs the examples" >
<emma enabled="${emma.enabled}" >
<instr instrpathref="run.classpath"
destdir="${out.instr.dir}"
metadatafile="${coverage.dir}/metadata.emma"
merge="true"
/>
</emma>
<!-- note from matt b: you could just as easily have a <junit> task here! -->
<java classname="Main" fork="true" >
<classpath>
<pathelement location="${out.instr.dir}" />
<path refid="run.classpath" />
<path refid="emma.lib" />
</classpath>
<jvmarg value="-Demma.coverage.out.file=${coverage.dir}/coverage.emma" />
<jvmarg value="-Demma.coverage.out.merge=true" />
</java>
<emma enabled="${emma.enabled}" >
<report sourcepath="${src.dir}" >
<fileset dir="${coverage.dir}" >
<include name="*.emma" />
</fileset>
<txt outfile="${coverage.dir}/coverage.txt" />
<html outfile="${coverage.dir}/coverage.html" />
</report>
</emma>
</target>
答案 2 :(得分:0)
Emma 2.1介绍了另一种获取运行时覆盖率信息的方法(.ec文件)。可以从运行检测应用程序的计算机的给定端口远程请求数据。所以没有必要停止VM。
要获取包含运行时覆盖率数据的文件,您需要在运行测试和生成覆盖率报告之间在Ant脚本中插入以下代码段:
<emma>
<ctl connect="${emma.rt.host}:${emma.rt.port}" >
<command name="coverage.get" args="${emma.ec.file}" />
<command name="coverage.reset" />
</ctl>
</emma>
其他步骤与Emma 2.0类似。它们在previous post
中有完美描述有关Emma 2.1功能的更多信息:http://sourceforge.net/project/shownotes.php?group_id=108932&release_id=336859