springboot2.1.3+jacoco檢測代碼覆蓋率


關於 jacoco的介紹,不在本文中詳細描述,簡單點說,只是個代碼覆蓋率工具,想要了解具體的可以參考如下地址:

https://www.jianshu.com/p/639e51c76544

好了,閑話不多說,上代碼,先看下pom文件

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.szl.demo</groupId>
    <artifactId>szldemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>szldemo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <jacoco.version>0.8.3</jacoco.version>
    </properties>

    <dependencies>
        <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>
    </dependencies>

    <build>
        <plugins>
            
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>${jacoco.version}</version>
                <executions>
                    <execution>
                        <id>default-prepare-agent</id>
                        <goals>
                            <goal>prepare-agent</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>default-report</id>
                        <phase>test</phase>
                        <goals>
                            <goal>report</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

新建一個簡單的service類,用於后面的測試,如下:

package com.szl.demo.szldemo.service;

public class Calculator {
    public int add(int a, int b) {
        return a + b;
    }
 
    public int sub(int a, int b) {
        return a - b;
    }
}

 

寫個單元測試類,如下:

package com.szl.demo.szldemo.service;

import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
public class CalculatorTest {
    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));
    }
}

 

讓我們進入控制台輸入命令,或使用eclipse工具也可以實現,如下圖:

這樣,我們就成功生成了jacoco report了,我們可以去target/site/目錄下就可找到。

 

 打開index.html,我們就可以查看想看的內容了。

OK, 記錄結束,沒什么含金量,只是個工具而已,有需要的朋友拿去學習。


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