Merge pull request #89 from whatever-mentoring/feature/jacoco-plugin

Add jacoco plugin for showing test coverage

build.gradle.kts

@@ -8,6 +8,7 @@ plugins {
     kotlin("plugin.spring") version "1.9.20"
     kotlin("plugin.jpa") version "1.9.20"
     kotlin("kapt") version "1.6.21"
+    jacoco
 }
 
 java.sourceCompatibility = JavaVersion.VERSION_17
@@ -35,6 +36,7 @@ subprojects {
     apply(plugin = "io.spring.dependency-management")
     apply(plugin = "kotlin-kapt")
     apply(plugin = "application")
+    apply(plugin = "jacoco")
 
     dependencies {
         implementation("org.springframework.boot:spring-boot-starter-web")
@@ -49,15 +51,101 @@ subprojects {
         testRuntimeOnly("com.h2database:h2")
     }
 
-    tasks.withType<KotlinCompile> {
+    jacoco {
+        toolVersion = "0.8.11"
+    }
+
+    tasks.jacocoTestReport {
+        dependsOn(tasks.test)
+        reports {
+            html.required = true
+            html.outputLocation = layout.buildDirectory.dir("reports/test-coverage.html").get().asFile
+            csv.required = false
+            xml.required = false
+        }
+
+        val excludes = listOf(
+                "com/whatever/raisedragon/config",
+                "com/whatever/raisedragon/common",
+                "com/whatever/raisedragon/infra",
+                "com/whatever/raisedragon/common/config",
+                "com/whatever/raisedragon/aws",
+                "com/whatever/raisedragon/applicationservice/*/dto"
+        )
+
+        classDirectories.setFrom(
+                sourceSets.main.get().output.asFileTree.matching {
+                    exclude(excludes)
+                }
+        )
+
+        finalizedBy(tasks.jacocoTestCoverageVerification)
+    }
+
+    tasks.jacocoTestCoverageVerification {
+        val qDomains = mutableListOf<String>()
+
+        for (qPattern in 'A'..'Z') {
+            qDomains.add("*.Q${qPattern}*")
+        }
+
+        violationRules {
+            rule {
+                enabled = true
+                element = "CLASS"
+
+                limit {
+                    counter = "BRANCH"
+                    value = "COVEREDRATIO"
+                    // TODO Fix minimum ratio after increasing test coverage ratio
+                    minimum = "0.00".toBigDecimal()
+                }
+
+                limit {
+                    counter = "LINE"
+                    value = "TOTALCOUNT"
+                    maximum = "200".toBigDecimal()
+                    // TODO Fix minimum ratio after increasing test coverage ratio
+                    minimum = "0.00".toBigDecimal()
+                }
+
+                excludes = qDomains
+            }
+        }
+
+        val excludes = listOf(
+                "com/whatever/raisedragon/config",
+                "com/whatever/raisedragon/common",
+                "com/whatever/raisedragon/infra",
+                "com/whatever/raisedragon/common/config",
+                "com/whatever/raisedragon/aws",
+                "com/whatever/raisedragon/applicationservice/*/dto"
+        )
+
+        classDirectories.setFrom(
+                sourceSets.main.get().output.asFileTree.matching {
+                    exclude(excludes)
+                }
+        )
+    }
+
+    tasks.test {
+        useJUnitPlatform()
+        finalizedBy(tasks.jacocoTestReport)
+    }
+
+    tasks.compileKotlin {
         kotlinOptions {
             freeCompilerArgs = listOf("-Xjsr305=strict")
             jvmTarget = "17"
         }
     }
 
-    tasks.withType<Test> {
-        useJUnitPlatform()
+    tasks.compileTestKotlin {
+        kotlinOptions {
+            freeCompilerArgs = listOf("-Xjsr305=strict")
+            jvmTarget = "17"
+        }
     }
 
     tasks.bootJar {