Fix test

Author: martinvisser

.mvn/maven.config

@@ -1,2 +1,3 @@
 -Dorg.slf4j.simpleLogger.showDateTime=true
 -Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss,SSS
+-ntp

README.md

@@ -37,3 +37,7 @@ This plugin is based on the [Gradle Plugin](https://github.com/Kotlin/kotlinx-ko
     </plugin>
 </plugins>
 ```
+
+### Known issues
+- During executing tests the following message might appear: `The MojoDescriptor for the goal prepare-agent cannot be null`
+  - Solved by running `mvn compile` first as it needs a `plugin.xml` in `target/classes/META-INF/maven/`.

pom.xml

@@ -22,6 +22,7 @@
         <kotest.version>5.6.1</kotest.version>
         <ktlint-maven-plugin.version>1.16.0</ktlint-maven-plugin.version>
         <maven-plugin-annotations.version>3.8.2</maven-plugin-annotations.version>
+        <maven-plugin-plugin.version>3.8.2</maven-plugin-plugin.version>
         <maven-plugin-testing-harness.version>3.3.0</maven-plugin-testing-harness.version>
         <maven-project.version>2.2.1</maven-project.version>
         <maven-source-plugin.version>3.2.1</maven-source-plugin.version>
@@ -247,6 +248,26 @@
                     </consoleOutputReporter>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-plugin-plugin</artifactId>
+                <version>${maven-plugin-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>descriptor</goal>
+                        </goals>
+                        <phase>compile</phase>
+                    </execution>
+                    <execution>
+                        <id>default-descriptor</id>
+                        <goals>
+                            <goal>descriptor</goal>
+                        </goals>
+                        <phase>none</phase>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 </project>

src/test/kotlin/io/github/mavi/kover/plugin/BaseMojoTest.kt

@@ -1,5 +1,3 @@
-@file:Suppress("DEPRECATION")
-
 package io.github.mavi.kover.plugin
 
 import io.kotest.assertions.withClue
@@ -17,6 +15,8 @@ import java.io.File
 abstract class BaseMojoTest : AbstractMojoTestCase() {
     internal lateinit var session: MavenSession
 
+    override fun getPluginDescriptorPath(): String = getBasedir() + "/target/classes/META-INF/maven/plugin.xml"
+
     override fun setUp() {
         val basedir = File("${javaClass.getResource("/")?.path}/projects/default")
         File(basedir, "target").deleteRecursively()