Jacoco 输掉了测试。覆盖率始终为 0

Question

Jacoco 插件丢失 JUnit 测试，报告始终为 0%，但测试存在。我认为问题是我的pom.xml。帮我找出错误。

可能与checkstyle插件冲突？

Jacoco 设置部分：

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-site-plugin</artifactId>
            <version>3.9.1</version>
        </plugin>
        <plugin>
            <groupId>org.sonarsource.scanner.maven</groupId>
            <artifactId>sonar-maven-plugin</artifactId>
            <version>3.7.0.1746</version>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.22.2</version>
            <configuration>
                <reportFormat>plain</reportFormat>
                <includes>
                    <include>**/*Test*.java</include>
                    <include>**/*IT*.java</include>
                </includes>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>${jacoco.version}</version>
            <executions>
                <execution>
                    <goals>
                        <goal>prepare-agent</goal>
                    </goals>
                </execution>
                <execution>
                    <id>report</id>
                    <phase>test</phase>
                    <goals>
                        <goal>report</goal>
                    </goals>
                </execution>
                <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>0.0</minimum>
                                    </limit>
                                </limits>
                            </rule>
                        </rules>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

<reporting>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-project-info-reports-plugin</artifactId>
            <version>3.1.1</version>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-checkstyle-plugin</artifactId>
            <version>${checkstyle.version}</version>
            <configuration>
                <configLocation>checkstyle.xml</configLocation>
            </configuration>
            <reportSets>
                <reportSet>
                    <reports>
                        <report>checkstyle</report>
                    </reports>
                </reportSet>
            </reportSets>
        </plugin>
    </plugins>
</reporting>

Answer 1

没有执行测试，所以没有覆盖。

在build log你有

[INFO] Tests are skipped.

这可能是由于您的 .github/workflows/build.yml

中的 -DskipTests

run: mvn -B clean package -DskipTests

执行mvn test产生

[INFO] --- maven-surefire-plugin:2.22.2:test (default-test) @ bridge ---
[INFO]
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

因为你有 junit-jupiter 依赖项，但没有 junit-vintage-engine（请参阅 mvn dependency:tree 的输出），而您的测试是使用 JUnit 4 编写的。

以下排除junit-vintage-engine

后

             <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>
+            -->

执行mvn test产生

[INFO] Tests run: 47, Failures: 0, Errors: 0, Skipped: 0

和以下报告

Jacoco 输掉了测试。覆盖率始终为 0

Jacoco lost test. Coverage always 0

java

maven

jacoco

jacoco-maven-plugin