问题
I am using Maven plugin to generate the code-coverage with Maven Plugin as below:
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>${jacoco.version}</version>
<executions>
<execution>
<id>pre-unit-test</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>post-unit-test</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
But this does not include any code coverage of the kotlin code in the project. I just perform coverage on Java Code.
The structure of the project is:
/projectName
/src
/main
/java
/kotlin
pom.xml
Also, in the pom, kotlin source is being compiled first (using kotlin-maven-plugin) and then the java source.
How to generate the coverage for both Java as well as Kotlin code?
回答1:
Given following src/main/java/InJava.java
class InJava {
void example() {
}
}
following src/main/kotlin/InKotlin.kt
class InKotlin {
fun example() {
}
}
following src/test/java/ExampleTest.java
public class ExampleTest {
@org.junit.Test
public void test() {
new InJava().example();
new InKotlin().example();
}
}
and pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<!--
Add "src/main/kotlin" as additional source directory,
so that kotlin-maven-plugin and jacoco-maven-plugin will look for files in it
-->
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${project.basedir}/src/main/kotlin</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>1.3.30</version>
<executions>
<execution>
<id>compile</id>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.3</version>
<executions>
<execution>
<goals>
<goal>prepare-agent</goal>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
execution of mvn verify
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------< org.example:example >-------------------------
[INFO] Building example 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- jacoco-maven-plugin:0.8.3:prepare-agent (default) @ example ---
[INFO] argLine set to -javaagent:/Users/evgeny.mandrikov/.m2/repository/org/jacoco/org.jacoco.agent/0.8.3/org.jacoco.agent-0.8.3-runtime.jar=destfile=/private/tmp/j/target/jacoco.exec
[INFO]
[INFO] --- build-helper-maven-plugin:3.0.0:add-source (add-source) @ example ---
[INFO] Source directory: /private/tmp/j/src/main/kotlin added.
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ example ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /private/tmp/j/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ example ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /private/tmp/j/target/classes
[INFO]
[INFO] --- kotlin-maven-plugin:1.3.30:compile (compile) @ example ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ example ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /private/tmp/j/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ example ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /private/tmp/j/target/test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ example ---
[INFO] Surefire report directory: /private/tmp/j/target/surefire-reports
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running ExampleTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.046 sec
Results :
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ example ---
[INFO] Building jar: /private/tmp/j/target/example-0.0.1-SNAPSHOT.jar
[INFO]
[INFO] --- jacoco-maven-plugin:0.8.3:report (default) @ example ---
[INFO] Loading execution data file /private/tmp/j/target/jacoco.exec
[INFO] Analyzed bundle 'example' with 2 classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.870 s
[INFO] Finished at: 2019-04-22T15:41:31+02:00
[INFO] ------------------------------------------------------------------------
compiles Kotlin and Java code, executes tests with JaCoCo Java Agent and generates following report in directory target/site/jacoco
which contains both Kotlin and Java code.
来源：https://stackoverflow.com/questions/55765833/code-coverage-kotlin-and-java-together-using-maven-jacoco