如果JUnit覆盖率低于某个阈值,如何使maven构建失败

Question

我从声纳rest api获得了单元测试覆盖百分比指标.

如果构建低于定义值,如何使构建失败？

Answer 1

JaCoCo 提供该功能.

JaCoCo与配置规则

定义使用配置规则JaCoCo插件COVEREDRATIO的LINE和BRANCH:

<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选项是:

• 线
• 科
• 指令
• 复杂
• 方法
• 类

我相信INSTRUCTION会允许你进行一般检查(例如,验证整个项目的覆盖率至少为0.80).

INSTRUCTION示例 - 总体指令覆盖率为80%

此示例要求整体指令覆盖率为80%,并且不得错过任何课程:

<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>

失败的消息

如果覆盖范围不符合预期,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] ------------------------------------------------------------------------

排除

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排除.项目通常包含许多不可测试/测试的类(Spring配置,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