add withChecks into pipeline

Jenkinsfile

@@ -2,12 +2,18 @@ pipeline {
     agent any
 
     stages {
-        stage('Test') {
+        stage('build') {
             steps {
-                withChecks(name: 'Test', includeStage: true) {
-                    echo 'Testing..'
-                    sh './gradlew clean test'
+                withChecks(name: 'test-coverage', includeStage: true) {
+                    sh './gradlew clean test jacocoTestReport jacocoTestCoverageVerification'
                     junit '**/build/test-results/test/TEST-*.xml'
+                    recordCoverage(tools: [[parser: 'JACOCO']],
+                            id: 'jacoco', name: 'JaCoCo Coverage',
+                            sourceCodeRetention: 'EVERY_BUILD'
+//                             , qualityGates: [
+//                                     [threshold: 40.0, metric: 'LINE', baseline: 'PROJECT', unstable: true],
+//                                     [threshold: 40.0, metric: 'BRANCH', baseline: 'PROJECT', unstable: true]]
+                    )
                 }
             }
         }

app/build.gradle.kts

@@ -9,6 +9,7 @@
 plugins {
     // Apply the application plugin to add support for building a CLI application in Java.
     application
+    jacoco
 }
 
 repositories {
@@ -22,6 +23,7 @@ dependencies {
 
     // This dependency is used by the application.
     implementation("com.google.guava:guava:31.1-jre")
+    implementation("org.jacoco:org.jacoco.core:0.8.12")
 }
 
 // Apply a specific Java toolchain to ease working on different environments.
@@ -31,6 +33,41 @@ java {
     }
 }
 
+jacoco {
+    toolVersion = "0.8.12"
+}
+
+tasks.jacocoTestReport {
+    reports {
+        xml.required.set(true)
+        xml.outputLocation.set(file("build/reports/jacoco/test/jacoco.xml"))
+        csv.required.set(false)
+        html.required.set(true)
+    }
+}
+
+tasks.jacocoTestCoverageVerification {
+    violationRules {
+        rule {
+            limit {
+                minimum = "0.4".toBigDecimal()
+            }
+        }
+
+        rule {
+            isEnabled = true
+            element = "CLASS"
+            includes = listOf("jenkins.test.*")
+
+            limit {
+                counter = "LINE"
+                value = "TOTALCOUNT"
+                minimum = "0.3".toBigDecimal()
+            }
+        }
+    }
+}
+
 application {
     // Define the main class for the application.
     mainClass.set("jenkins.test.App")