jacoco plugin - Build Quality Enforcement

Giriş

jacoco:check diye yeni bir goal tanımlanır. check aşamasında belirtilen kapsama yüzdeleri tutmuyorsa build fail eder. chck için rule tanımlanır. Açıklaması şöyle

The rule is given in the rule tag. You have the flexibility to specify more than one rule.

Element tag: This tag specifies the element on which the rule has to be applied.

Limit tag: Tags like counter, value, minimum, etc., are used to limit the code coverage percentage. A command like mvn clean verify can be used for ensuring whether the rule is followed or not.

Counter olarak şunlar kullanılabilir

CLASS

LINE

PACKAGE

INSTRUCTION

Örnek - LINE

Şöyle yaparız %90 Line Coverage ister

<execution>
  <id>jacoco-check</id>
  <goals>
    <goal>check</goal>
  </goals>
  <configuration>
    ...
    <rules>
      <rule>
        <element>PACKAGE</element>
        <limits>
          <limit>
            <counter>LINE</counter>
            <value>COVEREDRATIO</value>
            <minimum>0.9</minimum>
          </limit>
        </limits>
      </rule>
    </rules>
  </configuration>
</execution>

Örnek - LINE

Şöyle yaparız. %50 Line Coverage ister

<plugin>
  ... 
  <executions>
    ...
    <execution>
      <id>jacoco-check</id>
      <goals>
        <goal>check</goal>
      </goals>
      <configuration>
        <rules>
          <rule>
            <element>PACKAGE</element>
            <limits>
               <limit>
                <counter>LINE</counter>
                <value>COVEREDRATIO</value>
                <minimum>0.50</minimum>
              </limit>
            </limits>
          </rule>
        </rules>
      </configuration>
    </execution>
  </executions>
</plugin>

Örnek - INSTRUCTION, CLASS, LINE, BRANCH, METHOD

Şöyle yaparız. 

<execution>
  <id>check</id>
  <goals>
    <goal>check</goal>
  </goals>
  <configuration>
    <rules>
      <rule>
        <element>BUNDLE</element>
        <limits>
          <limit>
            <counter>INSTRUCTION</counter>
            <value>COVEREDRATIO</value>
            <minimum>${coverage.instruction.threshold}</minimum>
          </limit>
          <limit>
            <counter>CLASS</counter>
            <value>COVEREDRATIO</value>
            <minimum>${coverage.class.threshold}</minimum>
          </limit>
          <limit>
            <counter>LINE</counter>
            <value>COVEREDRATIO</value>
            <minimum>${coverage.line.threshold}</minimum>
          </limit>
          <limit>
          ...