Add test coverage plugin to see the code coverage

build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'java'
+    id 'jacoco'
 }
 
 group 'com.github.wahyd4'
@@ -12,5 +13,17 @@ repositories {
 }
 
 dependencies {
-    testCompile group: 'junit', name: 'junit', version: '4.12'
+//    testCompile group: 'junit', name: 'junit', version: '4.12'
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.1.0'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.1.0'
 }
+
+test {
+
+    useJUnitPlatform()
+
+    testLogging {
+        events "passed", "skipped", "failed"
+    }
+
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
+#Sat Mar 21 23:13:59 AEDT 2020
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-all.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-bin.zip
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

src/test/java/com/github/wahyd4/creditcard/service/FraudCheckerTest.java

@@ -1,12 +1,12 @@
 package com.github.wahyd4.creditcard.service;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.math.BigDecimal;
 import java.util.Arrays;
 import java.util.List;
 
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class FraudCheckerTest {
 
@@ -52,5 +52,5 @@ public class FraudCheckerTest {
         List<String> strings = fraudChecker.fraudulentCreditCards(entries, threshold);
         assertEquals(Arrays.asList("10d7ce2f43e35fa57d1bbf8b1e2"), strings);
     }
-    
+
 }