Add jacoco plugin

Author: Jegors Čemisovs

algorithm/build.gradle

@@ -2,6 +2,7 @@ plugins {
     id 'groovy'
     id 'java-library'
     id 'maven-publish'
+    id 'jacoco'
     id 'org.sonarqube' version '3.3'
 }
 
@@ -68,4 +69,15 @@ dependencies {
 
 test {
     useJUnitPlatform()
+    finalizedBy jacocoTestReport
+}
+
+jacocoTestReport {
+    dependsOn test
+
+    reports {
+        xml.required = true
+        csv.required = false
+        html.outputLocation = layout.buildDirectory.dir('jacocoHtml')
+    }
 }