Jacoco单元测试配置和使用

最近项目在重构。对未来的规划就是测试驱动开发。

先写单元测试,再开发代码。以单元测试的结果来判断代码实现的可用性。

因为大批量的补充之前的代码的单元测试,是一件产出大于收入的事情。

所以目前是在日常的需求周迭代中,补充了每次改动部分的单元测试。

为了客观展示单元测试补充情况,决定接入jacoco展示覆盖情况。

一.自己用maven搭建了一个springboot项目

见之前的博客:https://blog.csdn.net/third_/article/details/83659658

二.修改项目的pom.xml文件。增加对jacoco的依赖。

增加如下配置:

include部分表示查看单元测试覆盖的范围。

         <plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>${jacoco.version}</version>
                <configuration>
                    <!--<includes>-->
                        <!--<include>**/service/*</include> &lt;!&ndash; 此处表示只测service层 &ndash;&gt;-->
                    <!--</includes>-->
                </configuration>
                <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>
            </plugin>
 <jacoco.version>0.7.5.201505241946</jacoco.version>
 <junit.version>4.12</junit.version>

完整的pom文件如下:

<?xml version="1.0" encoding="UTF-8"?>
<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.kimtian</groupId>
    <artifactId>springboot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>springboot</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <jacoco.version>0.7.5.201505241946</jacoco.version>
        <junit.version>4.12</junit.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.0</version>
        </dependency>
    </dependencies>

    <build>
        <defaultGoal>compile</defaultGoal>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <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>
                <configuration>
                    <!--<includes>-->
                        <!--<include>**/service/*</include> &lt;!&ndash; 此处表示只测service层 &ndash;&gt;-->
                    <!--</includes>-->
                </configuration>
                <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>
            </plugin>
        </plugins>
    </build>
</project>

运行maven test。则在target文件下生成jacoco-ut文件夹,在文件夹下可以看到index.html文件。用浏览器打开就是单元覆盖率报告。

浏览器打开的单元测试覆盖率报告:

 我最开始一直未找到这个单元测试报告,在pom.xml配置中一定要加report部分的依赖,并指定report的位置。

另外要执行的是maven test。

执行方式可以选择package右键Run maven build。

注意:一定要BUILD SUCCESS成功。

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转载自blog.csdn.net/third_/article/details/84104239