我正在从声纳休息api获得单元测试覆盖率指标。
如果生成低于定义的值,如何使生成失败?
JaCoCo
提供了该功能。
具有配置规则的JaCoCo
使用LINE
和BRANCH
:的配置规则COVEREDRATIO
定义JaCoCo插件
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.7.201606060606</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<rules>
<rule>
<element>CLASS</element>
<limits>
<limit>
<counter>LINE</counter>
<value>COVEREDRATIO</value>
<minimum>0.80</minimum>
</limit>
<limit>
<counter>BRANCH</counter>
<value>COVEREDRATIO</value>
<minimum>0.80</minimum>
</limit>
</limits>
<excludes>
<exclude>com.xyz.ClassToExclude</exclude>
</excludes>
</rule>
</rules>
</configuration>
</execution>
</executions>
</plugin>
各种选择
支持的counter
选项包括:
- 线路
- 分支
- 指令
- 复杂性
- 方法
- 类
我相信INSTRUCTION
将允许您进行一般检查(例如,验证整个项目至少有0.80的覆盖率)。
说明示例-总说明覆盖率为80%的
此示例要求总指令覆盖率为80%必须错过类:
<rules> <rule implementation="org.jacoco.maven.RuleConfiguration"> <element>BUNDLE</element> <limits> <limit implementation="org.jacoco.report.check.Limit"> <counter>INSTRUCTION</counter> <value>COVEREDRATIO</value> <minimum>0.80</minimum> </limit> <limit implementation="org.jacoco.report.check.Limit"> <counter>CLASS</counter> <value>MISSEDCOUNT</value> <maximum>0</maximum> </limit> </limits> </rule> </rules>
故障消息
如果覆盖范围未达到预期,则会失败,并显示以下消息:
[WARNING] Rule violated for class com.sampleapp.SpringConfiguration: lines covered ratio is 0.00, but expected minimum is 0.80
[WARNING] Rule violated for class com.sampleapp.Launcher: lines covered ratio is 0.33, but expected minimum is 0.80
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
除外条款
在上面的例子中,我设置了<exclude>com.xyz.ClassToExclude</exclude>
。我想你会发现你需要添加许多除外条款。项目通常包含许多不可测试/测试的类(Spring Configuration、Java Bean…)。您也可以使用正则表达式。
来源:
- http://choudhury.com/blog/2014/02/25/enforcing-minimum-code-coverage
- http://www.eclemma.org/jacoco/trunk/doc/maven.html
- http://www.eclemma.org/jacoco/trunk/doc/check-mojo.html
如果您使用的是0.8.2或类似版本的jacoco-maven插件,请确保定义了数据文件,并对插件使用以下配置。
<execution>
<id>jacoco-check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<dataFile>${project.build.directory}/coverage-reports/jacoco.exec</dataFile>
<rules>
<rule>
<element>BUNDLE</element>
<limits>
<limit>
<counter>INSTRUCTION</counter>
<value>COVEREDRATIO</value>
<minimum>0.17</minimum>
</limit>
</limits>
</rule>
</rules>
</configuration>
</execution>
此代码确保了17%的总体覆盖率。
请使用对此进行验证
mvn干净验证
命令。
Specify the datFile location if it is not under default folder.
<execution>
<id>check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<dataFile><path-to-jacoc-ut.exec></dataFile>
<rules><rule>
<element>CLASS</element>
<limits>
<limit>
<counter>LINE</counter>
<value>COVEREDRATIO</value>
<minimum>0.80</minimum>
</limit>
<limit>
<counter>BRANCH</counter>
<value>COVEREDRATIO</value>
<minimum>0.80</minimum>
</limit>
</limits>
<excludes>
<exclude>com.xyz.ClassToExclude</exclude>
</excludes>
</rule></rules></configuration>
</execution>