使用Jacoco进行集成测试的代码覆盖率 [英] Code Coverage for Integration tests using Jacoco

问题描述

我将版本0.8.1的jacocoagent.jar作为Java代理传递，以将服务器上的代码覆盖率记录到我的服务器启动脚本中.但是我发现jar中缺少Pre-main class属性，结果出现以下错误:

I am passing jacocoagent.jar of version 0.8.1 as a java agent to record the code coverage on the server to my server start-up script. But I see that Pre-main class attribute is missing in the jar, as a result, I get the following error:

Error occurred during initialization of VM
Failed to find Premain-Class manifest attribute in 
/u01/jetty_home/jacoco/jacocoagent.jar
agent library failed to init: instrument.

有人对如何解决这个问题有想法吗?

Does anyone have thoughts on how to fix this?

推荐答案

确保使用正确的JAR文件.

Make sure that you use proper JAR file.

lib/jacocoagent.jar具有以下校验和

lib/jacocoagent.jar in jacoco-0.8.1.zip that is linked from JaCoCo homepage has following checksums

$ wget http://repo1.maven.org/maven2/org/jacoco/jacoco/0.8.1/jacoco-0.8.1.zip

$ unzip jacoco-0.8.1.zip

$ md5sum lib/jacocoagent.jar
2873d7006dc9672d84981792df2c5b7a  lib/jacocoagent.jar

$ sha256sum lib/jacocoagent.jar
cd40d1c1aea4112adb82049df3f462b60380ce1bb00bdecb1cfdb862e34be8dd  lib/jacocoagent.jar

JaCoCo主页还包含 JaCoCo文档上的链接，该文档包含页面"Maven存储库" ，并解释为Maven Central存储库中的工件完全相同groupId org.jacoco，artifactId org.jacoco.agent，最重要的是分类器runtime :

JaCoCo homepage also contains link on JaCoCo documentation, which contains page "Maven Repository" with explanation that exactly the same artifact in Maven Central Repository has groupId org.jacoco, artifactId org.jacoco.agent and most importantly classifier runtime :

以下JAR文件可用:

Following JAR files are available:

Group ID   | Artifact ID      | Classifier | Description
-----------+------------------+------------+-------------
...
org.jacoco | org.jacoco.agent |            | API to get a local copy of the agent
org.jacoco | org.jacoco.agent | runtime    | Agent
...

，因此其文件名为 org.jacoco.agent-0.8.1-runtime.jar

$ wget http://repo1.maven.org/maven2/org/jacoco/org.jacoco.agent/0.8.1/org.jacoco.agent-0.8.1-runtime.jar

$ md5sum org.jacoco.agent-0.8.1-runtime.jar
2873d7006dc9672d84981792df2c5b7a  org.jacoco.agent-0.8.1-runtime.jar

$ sha256sum org.jacoco.agent-0.8.1-runtime.jar
cd40d1c1aea4112adb82049df3f462b60380ce1bb00bdecb1cfdb862e34be8dd  org.jacoco.agent-0.8.1-runtime.jar

都具有Premain-Class属性

$ unzip lib/jacocoagent.jar

$ cat META-INF/MANIFEST.MF | grep Premain
Premain-Class: org.jacoco.agent.rt.internal_c13123e.PreMain

这篇关于使用Jacoco进行集成测试的代码覆盖率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IT屋！