EMMA 不会涵盖我的一个项目
我对 EMMA 有一个问题，它正确地覆盖了我所有的各种 Java 项目，除了一个项目。 我很困惑为什么会发生这种情况，因为 ANT 脚本似乎是正确的。 给出以下预期输出：
[echo] c:\cc_local_home\emmadata\ProjectName
[instr] processing instrumentation path ...
[instr] instrumentation path processed in 1876 ms
[instr] [84 class(es) instrumented, 0 resource(s) copied]
[instr] metadata merged into [c:\cc_local_home\data\2008-11-17_14.35.19\coverage.emma] {in 62 ms}
上述内容由以下 ANT 脚本生成：
<target name="emma" depends="init" if="use.emma">
<echo message="${emma.bin}" />
<emma enabled="true">
<instr instrpath="${test.bin}" destdir="${emma.bin}" metadatafile="${test.data.dir}/coverage.emma" merge="true">
<filter excludes="*Test*,*test*" />
<filter excludes="*Exception" />
<filter excludes="*AppConstants" />
</instr>
</emma>
</target>
运行 JUnit 测试后，将记录以下内容。
艾玛报告： [报告]处理输入文件...
[报告] 16 毫秒内读取并合并 1 个文件
[报告]无事可做：在任何数据文件中都找不到运行时覆盖率数据
并且不会生成覆盖率报告。
我确信coverage.emma 文件已正确链接，那么为什么 EMMA 不覆盖代码？
emma.report 任务如下所示：
<target name="emma.report" if="use.emma">
<emma enabled="true">
<report sourcepath="${test.reports.dir}">
<infileset dir="${test.data.dir}" includes="*.emma" />
<html outfile="${test.reports.dir}/coverage.html" />
</report>
</emma>
</target>
I have an issue with EMMA where it is correctly covering all my various Java projects except one.
I am puzzled as to why this occurs as the ANT script appears to be correct. The following expected output is given:
[echo] c:\cc_local_home\emmadata\ProjectName
[instr] processing instrumentation path ...
[instr] instrumentation path processed in 1876 ms
[instr] [84 class(es) instrumented, 0 resource(s) copied]
[instr] metadata merged into [c:\cc_local_home\data\2008-11-17_14.35.19\coverage.emma] {in 62 ms}
The above is generated by the following piece of ANT script:
<target name="emma" depends="init" if="use.emma">
<echo message="${emma.bin}" />
<emma enabled="true">
<instr instrpath="${test.bin}" destdir="${emma.bin}" metadatafile="${test.data.dir}/coverage.emma" merge="true">
<filter excludes="*Test*,*test*" />
<filter excludes="*Exception" />
<filter excludes="*AppConstants" />
</instr>
</emma>
</target>
After the JUnit tests are run, the following is logged.
emma.report:
[report] processing input files ...
[report] 1 file(s) read and merged in 16 ms
[report] nothing to do: no runtime coverage data found in any of the data files
And no coverage report is generated.
I am certain that the coverage.emma files are being linked correctly so why is EMMA not covering the code?
The emma.report task looks like the following:
<target name="emma.report" if="use.emma">
<emma enabled="true">
<report sourcepath="${test.reports.dir}">
<infileset dir="${test.data.dir}" includes="*.emma" />
<html outfile="${test.reports.dir}/coverage.html" />
</report>
</emma>
</target>
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您可能需要查看有关此确切消息的常见问题解答：< a href="http://emma.sourceforge.net/faq.html#q.report.noop" rel="nofollow noreferrer">为什么
并且，与
Ant一样，打开-verbose并仔细检查输出。What does the
<emma.report>element look like?You may want to look at this FAQ concerning this exact message: Why does <report></report> say "nothing to do: no ...data found in any of the data files" and exit without generating anything?
And, as always with
Ant, turn on-verboseand double check the output.我会检查以确保 JUnit 目标正在运行已检测的代码，而不是运行未检测的代码（这不会产生任何覆盖率数据）。
I would check to make sure that the JUnit target is running the instrumented code, and not running non-instrumented code (which would not produce any coverage data).
当您使用错误的命令生成报告时，您会收到此错误。 大多数在线教程都提倡错误的（可能是旧的）命令，即使我在使用以下命令生成报告时遇到此错误：
{JAVA_HOME}\jre\lib\ext>java -cp emma.jar emma report - r html -incoverage.em, {ALFRESCO_HOME}\coverage.ec
EMMA：处理输入文件...
EMMA：60 毫秒内读取并合并 1 个文件
EMMA：无事可做：在任何数据文件中都找不到运行时覆盖率数据
该命令的正确用法是：
{JAVA_HOME}\jre\lib\ext>java -cp emma.jar emma report -r txt,html -in {JAVA_HOME}\jre\lib\ext\coverage.em -in C:\t1_tempSetup\Alfresco\覆盖率.ec
EMMA：处理输入文件...
EMMA：在 70 毫秒内读取并合并 2 个文件 EMMA：将 [txt] 报告写入 [{JAVA_HOME}\jre\lib\ext\coverage.txt] ...
EMMA：将 [html] 报告写入 [{JAVA_HOME}\jre\lib\ext\coverage\index.html]
You get this error when you use wrong command to generate the report. Most of the online tutorial is advocating the wrong(may by old) command, even I got this error when I used below command to generate the report:
{JAVA_HOME}\jre\lib\ext>java -cp emma.jar emma report -r html -in coverage.em, {ALFRESCO_HOME}\coverage.ec
EMMA: processing input files ...
EMMA: 1 file(s) read and merged in 60 ms
EMMA: nothing to do: no runtime coverage data found in any of the data files
Correct usage of the command is:
{JAVA_HOME}\jre\lib\ext>java -cp emma.jar emma report -r txt,html -in {JAVA_HOME}\jre\lib\ext\coverage.em -in C:\t1_tempSetup\Alfresco\coverage.ec
EMMA: processing input files ...
EMMA: 2 file(s) read and merged in 70 ms EMMA: writing [txt] report to [{JAVA_HOME}\jre\lib\ext\coverage.txt] ...
EMMA: writing [html] report to [{JAVA_HOME}\jre\lib\ext\coverage\index.html]