jacoco统计server端功能测试覆盖率

Posted 2020-09-27 每天1990

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jacoco可以统计，功能测试时，server代码调用的覆盖情况。这里对服务器端的java代码进行统计。

操作步骤如下：

第一步：更改server的启动脚本，使用jacocoagent.jar启动服务

1.下载jacocoagent.jar

http://www.jacoco.org/jacoco/index.html

jacocoagent.jar在下载的zip的./lib/目录下，使用方法-javaagent:[yourpath/]jacocoagent.jar=[option1]=[value1],[option2]=[value2]

2.修改启动server的参数，使用jacocoagent.jar记录服务的操作数据

启动项增加下面内容：

-javaagent:/opt/soft/jacoco/lib/jacocoagent.jar=destfile=/home/work/jacoco/${SERVICE_NAME}/${SERVICE_NAME}jacoco.exec,append=true,classdumpdir=/home/work/jacoco/${SERVICE_NAME/class/,includes=com.*,excludes=*.scf.*:*.entity.*:*.entitys.*,output=file"

说明：

1.javaagent:后面跟jacocoagent.jar的地址

2.destfile为输出的exec的保存地址，exec文件是用来分析覆盖率的

3.classdumpdir：agent调用到的所有class文件存储的位置

更多jacocoagent.jar的参数详见官网：http://www.eclemma.org/jacoco/trunk/doc/agent.html

第二步：生成覆盖率报告

1.下载jacoco的包（这里是使用maven进行下载）

<dependencies>
<!-- https://mvnrepository.com/artifact/org.jacoco/jacoco-maven-plugin -->
<dependency>
    <groupId>org.jacoco</groupId>
    <artifactId>jacoco-maven-plugin</artifactId>
    <version>0.7.9</version>
</dependency>
</dependencies>

2.从服务器上拿生成的exec文件放到要生成报告的机器上

exec地址为启动脚本中destfile指定的文件

理论上不用杀server进程就可以直接copy到最新的exec文件，但是如果遇到报告结果是空的情况，可以考虑先kill server进程，再拷贝exec文件

3.创建工程，新建java类ReportGenerator，用来生成报告

import java.io.File;
import java.io.IOException;

import org.jacoco.core.analysis.Analyzer;
import org.jacoco.core.analysis.CoverageBuilder;
import org.jacoco.core.analysis.IBundleCoverage;
import org.jacoco.core.tools.ExecFileLoader;
import org.jacoco.report.DirectorySourceFileLocator;
import org.jacoco.report.FileMultiReportOutput;
import org.jacoco.report.IReportVisitor;
import org.jacoco.report.html.HTMLFormatter;
 
public class testjacoco {

    private final String title;

    private final File executionDataFile;
    private final File classesDirectory;
    private final File sourceDirectory;
    private final File reportDirectory;

    private ExecFileLoader execFileLoader;
    public testjacoco(final File projectDirectory ) {
        this.title = projectDirectory.getName();
        this.executionDataFile = new File(projectDirectory, "scfzzpostjacoco.exec");//覆盖率的exec文件地址
        this.classesDirectory = new File(projectDirectory, "/");//目录下必须包含源码编译过的class文件,用来统计覆盖率。所以这里用server打出的jar包地址即可
//        this.sourceDirectory =null;
        this.sourceDirectory = new File("/opt/RD_Code/server/zhuanzhuan_scf_zzpost_4-0-38_BRANCH/service/", "src/main/java");//源码的/src/main/java,只有写了源码地址覆盖率报告才能打开到代码层。使用jar只有数据结果
        this.reportDirectory = new File(projectDirectory, "coveragereport");//要保存报告的地址
    }

   
    public void create() throws IOException {
        loadExecutionData();
 
        final IBundleCoverage bundleCoverage = analyzeStructure();

        createReport(bundleCoverage);

    }

    private void createReport(final IBundleCoverage bundleCoverage)
            throws IOException {
        final HTMLFormatter htmlFormatter = new HTMLFormatter();
        final IReportVisitor visitor = htmlFormatter
                .createVisitor(new FileMultiReportOutput(reportDirectory));
 
        visitor.visitInfo(execFileLoader.getSessionInfoStore().getInfos(),
                execFileLoader.getExecutionDataStore().getContents());
        visitor.visitBundle(bundleCoverage, new DirectorySourceFileLocator(
                sourceDirectory, "utf-8", 4));
        visitor.visitEnd();

    }

    private void loadExecutionData() throws IOException {
        execFileLoader = new ExecFileLoader();
        execFileLoader.load(executionDataFile);
    }

    private IBundleCoverage analyzeStructure() throws IOException {
        final CoverageBuilder coverageBuilder = new CoverageBuilder();
        final Analyzer analyzer = new Analyzer(
                execFileLoader.getExecutionDataStore(), coverageBuilder);

        analyzer.analyzeAll(classesDirectory);

        return coverageBuilder.getBundle(title);
    }
 
    public static void main(final String[] args) throws IOException {
        testjacoco generator = new testjacoco(new File("/opt/RD_Code/server/untitled/"));//传递工程目录
            generator.create();
    }
}