得到“由于缺少执行数据文件而跳过JaCoCo执行".在执行JaCoCo之后

问题描述

我正在使用Maven 3.0.3，JUnit 4.8.1和Jacoco 0.6.3.201306030806，并且正在尝试创建测试覆盖率报告.

I'm using Maven 3.0.3, JUnit 4.8.1, and Jacoco 0.6.3.201306030806, and I am trying to create test coverage reports.

我有一个仅包含单元测试的项目，但是我无法运行报告，我在运行时反复遇到错误:Skipping JaCoCo execution due to missing execution data file:

I have a project with unit tests only, but I can't get reports to run, I'm repeatedly getting the error: Skipping JaCoCo execution due to missing execution data file when I run:

mvn clean install -P test-coverage

这是我的pom的配置方式:

Here is how my pom is configured:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <version>2.14.1</version>
  <configuration>
    <reuseForks>true</reuseForks>
    <argLine>-Xmx2048m</argLine>
  </configuration>
</plugin>
<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-failsafe-plugin</artifactId>
  <version>2.14.1</version>
  <configuration>
    <reuseForks>true</reuseForks>
    <argLine>-Xmx4096m -XX:MaxPermSize=512M ${itCoverageAgent}</argLine>
  </configuration>
  <executions>
    <execution>
      <goals>
        <goal>integration-test</goal>
        <goal>verify</goal>
      </goals>
    </execution>
  </executions>
</plugin>
...
<profile>
  <id>test-coverage</id>
  <build>
    <plugins>
      <plugin>
        <groupId>org.jacoco</groupId>
        <artifactId>jacoco-maven-plugin</artifactId>
        <version>0.6.3.201306030806</version>
        <configuration>
          <destfile>${basedir}/target/coverage-reports/jacoco-unit.exec</destfile>
          <datafile>${basedir}/target/coverage-reports/jacoco-unit.exec</datafile>
        </configuration>
        <executions>
          <execution>
            <id>prepare-unit-tests</id>
            <goals>
              <goal>prepare-agent</goal>
            </goals>
          </execution>
          <!-- prepare agent for measuring integration tests -->
          <execution>
            <id>prepare-integration-tests</id>
            <goals>
              <goal>prepare-agent</goal>
            </goals>
            <phase>pre-integration-test</phase>
            <configuration>
              <propertyName>itCoverageAgent</propertyName>
            </configuration>
          </execution>
          <execution>
            <id>jacoco-site</id>
            <phase>verify</phase>
            <goals>
              <goal>report</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</profile>

我所有的测试都成功运行.这是Maven的一些输出:

All my tests run successfully. Here is some of the output from Maven:

[INFO] --- jacoco-maven-plugin:0.6.2.201302030002:prepare-agent (prepare-unit-tests) @ myproject ---
[INFO] argLine set to -javaagent:/Users/davea/.m2/repository/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002-runtime.jar=destfile=/Users/davea/Dropbox/workspace/myproject/target/jacoco.exec
[INFO]
    ...
Tests run: 14, Failures: 0, Errors: 0, Skipped: 0

[INFO]
    ...
[INFO]
[INFO] --- jacoco-maven-plugin:0.6.2.201302030002:prepare-agent (prepare-integration-tests) @ myproject ---
[INFO] itCoverageAgent set to -javaagent:/Users/davea/.m2/repository/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002-runtime.jar=destfile=/Users/davea/Dropbox/workspace/myproject/target/jacoco.exec
[INFO]
[INFO] --- maven-failsafe-plugin:2.14.1:integration-test (default) @ myproject ---
[WARNING] File encoding has not been set, using platform encoding MacRoman, i.e. build is platform dependent!
[INFO]
[INFO] --- maven-failsafe-plugin:2.14.1:verify (default) @ myproject ---
[INFO] Failsafe report directory: /Users/davea/Dropbox/workspace/myproject/target/failsafe-reports
[WARNING] File encoding has not been set, using platform encoding MacRoman, i.e. build is platform dependent!
[INFO]
[INFO] --- jacoco-maven-plugin:0.6.2.201302030002:report (jacoco-site) @ myproject ---
[INFO] Skipping JaCoCo execution due to missing execution data file
[INFO]

有什么想法我缺少什么配置?

Any ideas what configuration I'm missing?

推荐答案

jacoco-maven-plugin:0.7.10-SNAPSHOT

从 jacoco:prepare-agent 看到， :

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <configuration>
    <argLine>@{argLine} -your -extra -arguments</argLine>
  </configuration>
</plugin>

请注意添加到-your -extra -arguments的@{argLine}.

感谢 Slava Semushin 注意到更改，并.

在 jacoco:prepare-agent 后面， :

• tycho.testArgLine用于包装eclipse-test-plugin和
• argLine否则.

请注意，这些属性不能被 测试配置，否则JaCoCo代理将无法连接.如果 您需要自定义参数，请附加它们.例如:

Note that these properties must not be overwritten by the test configuration, otherwise the JaCoCo agent cannot be attached. If you need custom parameters please append them. For example:

<argLine>${argLine} -your -extra -arguments</argLine>

结果 覆盖范围信息是在执行期间收集的，默认情况下是 进程终止时将其写入文件.

Resulting coverage information is collected during execution and by default written to a file when the process terminates.

您应在maven-surefire-plugin插件配置中更改以下行(请注意<argLine>内的${argLine}):

you should change the following line in maven-surefire-plugin plugin configuration from (note the ${argLine} inside <argLine>):

<argLine>-Xmx2048m</argLine>

到

<argLine>${argLine} -Xmx2048m</argLine>

还对其他插件maven-failsafe-plugin进行了必要的更改，并替换了以下内容(再次注意${argLine}):

Make also the necessary changes to the other plugin maven-failsafe-plugin and replace the following (again, notice the ${argLine}):

<argLine>-Xmx4096m -XX:MaxPermSize=512M ${itCoverageAgent}</argLine>

到

<argLine>${argLine} -Xmx4096m -XX:MaxPermSize=512M ${itCoverageAgent}</argLine>

这篇关于得到“由于缺少执行数据文件而跳过JaCoCo执行".在执行JaCoCo之后的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！