Setting up properly SonarQube's for Code Coverage

Question

I'm using JUnit5 on a SpringBoot backend application server using Maven. Here is the sonar-project.properties file that is at the root of the project:

sonar.host.url=https://sonarcloud.io
sonar.login=xxx
sonar.organization=xxx
sonar.projectKey=xxx

sonar.sourceEncoding=UTF-8
sonar.language=java
sonar.java.source=12

sonar.sources=src/main/java
sonar.test=src/test
sonar.java.binaries=target/classes
sonar.junit.reportPaths=target/test-results/TEST-**.xml

I use the sonar-scanner command line to run update the project after a build/test.

The Overview board on sonar-cloud looks like this:

I at least got the unit tests to be recognized, but somehow I'm still at 0% in terms of code coverage. Furthermore, here is the Measures board:

Apparently, my tests do not cover any lines whatsoever. Now, I'm aware that this means that I most probably didn't hook up the test-results properly, but I'm not sure how to do that.

What puzzles me, too, is that despite SonarQube recognizing my tests, it actually says that the lines-of-code of the tests themselves aren't tested. What is this supposed to mean?

Solution 1

From SonarQube's documentation:

SonarSource analyzers do not run your tests or generate reports. They only import pre-generated reports.

A popular library for generating code coverage for Java is Jacoco.

SonarQube provides this guide to create and import Jacoco's reports.

Solution 2

Here is the working sonar-project.properties file:

# SONAR CLOUD CONFIGS
sonar.host.url=https://sonarcloud.io
sonar.organization=xxx
sonar.projectKey=xxx
sonar.login=xxx

# SOURCES
sonar.java.source=12
sonar.sources=src/main/java
sonar.java.binaries=target/classes
sonar.sourceEncoding=UTF-8

# EXCLUSIONS
# (exclusion of Lombok-generated stuff comes from the `lombok.config` file)
sonar.coverage.exclusions = **/*Exception.java , **/MySpringBootApplication.java

# TESTS
sonar.coverage.jacoco.xmlReportPaths=target/site/jacoco/jacoco.xml
sonar.junit.reportsPath=target/surefire-reports/TEST-*.xml
sonar.tests=src/test/java

Solution 3

We have same issue. You need to add coverage blocks in your pom.xml Can refer following sample pom.xml

4.0.0 org.springframework.boot spring-boot-starter-parent 2.3.3.RELEASE com.test testapp 0.0.1-SNAPSHOT testapp Demo project for Spring Boot

<properties>
    <java.version>1.8</java.version>
    <sonar.coverage.jacoco.xmlReportPaths>../target/site/jacoco-aggregate/jacoco.xml</sonar.coverage.jacoco.xmlReportPaths>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>

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

    <dependency>
        <groupId>org.postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
        <exclusions>
            <exclusion>
                <groupId>org.junit.vintage</groupId>
                <artifactId>junit-vintage-engine</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
      <groupId>org.sonarsource.scanner.maven</groupId>
      <artifactId>sonar-maven-plugin</artifactId>
      <version>3.6.0.1398</version>
    </plugin>
    <plugin>
      <groupId>org.jacoco</groupId>
      <artifactId>jacoco-maven-plugin</artifactId>
      <version>0.8.5</version>
    </plugin>
    </plugins>
</build>

<profiles>
<profile>
  <id>coverage</id>
  <activation>
    <activeByDefault>true</activeByDefault>
  </activation>
  <build>
    <plugins>
      <plugin>
        <groupId>org.jacoco</groupId>
        <artifactId>jacoco-maven-plugin</artifactId>
        <executions>
          <execution>
            <id>prepare-agent</id>
            <goals>
              <goal>prepare-agent</goal>
            </goals>
          </execution>
          <execution>
            <id>report</id>
            <goals>
              <goal>report</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</profile>

Reference URL: https://github.com/SonarSource/sonar-scanning-examples/tree/master/sonarqube-scanner-maven/maven-basic