Maven工程配置代碼覆蓋工具Jacoco
本篇博文咱們將給出示例理解如何在Maven工程中配置Jacoco和如何使用Jacoco查看代碼覆蓋報告~java
Jacoco是一個開源的Java代碼覆蓋率工具，Jacoco能夠嵌入到Ant 、Maven中，並提供了EclEmma Eclipse插件,也能夠使用JavaAgent技術監控Java程序。不少第三方的工具提供了對Jacoco的集成，如sonar、Jenkins等。apache
Maven工程架構
建立Maven工程併發
打開Eclipse，File->New->Project->Maven Project，新建一個Maven工程~maven
點擊「Next」按鈕，而後填寫groupId和artifactId信息後點擊"Finish"按鈕便可~高併發
groupId --> com.xxx.tutorial工具
artifactId --> jacoco-demopost
配置Jacoco單元測試
添加maven-complier-plugin測試
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.6.1</version> <configuration> <skipMain>true</skipMain> <skip>true</skip> <source>1.7</source> <target>1.7</target> </configuration> </plugin>
添加jacoco-maven-plugin
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco.version}</version>
<executions>
<execution>
<id>prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
<execution>
<id>post-unit-test</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<dataFile>target/jacoco.exec</dataFile>
<outputDirectory>target/jacoco-ut</outputDirectory>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
</plugin>
在這裏，咱們將單元測試結果的輸出目錄肯定爲target/jacoco-ut目錄下~
完整的pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.xxx.tutorial</groupId>
<artifactId>jacoco-demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<jacoco.version>0.7.5.201505241946</jacoco.version>
<junit.version>4.12</junit.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<skipMain>true</skipMain>
<skip>true</skip>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco.version}</version>
<executions>
<execution>
<id>prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
<execution>
<id>post-unit-test</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<dataFile>target/jacoco.exec</dataFile>
<outputDirectory>target/jacoco-ut</outputDirectory>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<jacoco-agent.destfile>target/jacoco.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</project>
編寫代碼
Calculator.java
package com.xxx.tutorial;
/**
*
* @author wangmengjun
*
*/
public class Calculator {
public int add(int a, int b) {
return a + b;
}
public int sub(int a, int b) {
return a - b;
}
}
Calculator_Test.java
package com.xxx.tutorial;
import org.junit.Assert;
import org.junit.Test;
/**
*
* @author wangmengjun
*
*/
public class Calculator_Test {
private Calculator instance = new Calculator();
@Test
public void testAdd() {
int a = 10;
int b = 20;
int expected = 30;
Assert.assertEquals(expected, instance.add(a, b));
}
@Test
public void testSub() {
int a = 10;
int b = 20;
int expected = -10;
Assert.assertEquals(expected, instance.sub(a, b));
}
}
代碼結構以下：
運行並查看Jacoco報告
運行Maven test
執行Maven test， 控制檯輸出以下結果：
[INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building jacoco-demo 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- jacoco-maven-plugin:0.7.5.201505241946:prepare-agent (prepare-agent) @ jacoco-demo --- [INFO] argLine set to -javaagent:D:\\java_tools\\Reponsitories\\Maven\\org\\jacoco\\org.jacoco.agent\\0.7.5.201505241946\\org.jacoco.agent-0.7.5.201505241946-runtime.jar=destfile=F:\\JavaDeveloper\\workspaces\\SpringMVCDubboExample\\jacoco-demo\\target\\jacoco.exec [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ jacoco-demo --- [WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.6.1:compile (default-compile) @ jacoco-demo --- [INFO] Not compiling main sources [INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ jacoco-demo --- [WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.6.1:testCompile (default-testCompile) @ jacoco-demo --- [INFO] Not compiling test sources [INFO] [INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ jacoco-demo --- [INFO] Surefire report directory: F:\JavaDeveloper\workspaces\SpringMVCDubboExample\jacoco-demo\target\surefire-reports ------------------------------------------------------- T E S T S ------------------------------------------------------- Running com.xxx.tutorial.Calculator_Test Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.134 sec Results : Tests run: 2, Failures: 0, Errors: 0, Skipped: 0 [INFO] [INFO] --- jacoco-maven-plugin:0.7.5.201505241946:report (post-unit-test) @ jacoco-demo --- [INFO] Analyzed bundle 'jacoco-demo' with 1 classes [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 4.972 s [INFO] Finished at: 2017-06-16T21:02:30+08:00 [INFO] Final Memory: 15M/244M [INFO] ------------------------------------------------------------------------
咱們點擊 Java高併發高可用架構：632103578 就能夠看到target目錄下，已經生成了Jacoco的單元測試結果報告~
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