Migrate to JUnit5

throttling/pom.xml

@@ -35,10 +35,16 @@
 
     <artifactId>throttling</artifactId>
 	<dependencies>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-		</dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <scope>test</scope>
+        </dependency>
 	</dependencies>
 
 </project>

throttling/src/test/java/com/iluwatar/throttling/AppTest.java

@@ -22,7 +22,7 @@
  */
 package com.iluwatar.throttling;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Application test

throttling/src/test/java/com/iluwatar/throttling/B2BServiceTest.java

@@ -22,11 +22,11 @@
  */
 package com.iluwatar.throttling;
 
-import org.junit.Assert;
-import org.junit.Test;
-
 import com.iluwatar.throttling.timer.ThrottleTimerImpl;
 import com.iluwatar.throttling.timer.Throttler;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * B2BServiceTest class to test the B2BService
@@ -43,6 +43,6 @@ public class B2BServiceTest {
       service.dummyCustomerApi(tenant);
     }
     long counter = CallsCount.getCount(tenant.getName());
-    Assert.assertTrue("Counter limit must be reached", counter == 2);
+    assertTrue(counter == 2, "Counter limit must be reached");
   }
 }

throttling/src/test/java/com/iluwatar/throttling/TenantTest.java

@@ -22,19 +22,21 @@
  */
 package com.iluwatar.throttling;
 
-import org.junit.Test;
-
-import com.iluwatar.throttling.Tenant;
+import org.junit.jupiter.api.Test;
 
 import java.security.InvalidParameterException;
 
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
 /**
  * TenantTest to test the creation of Tenant with valid parameters.
  */
 public class TenantTest {
 
-  @Test(expected = InvalidParameterException.class)
+  @Test
   public void constructorTest() {
-    Tenant tenant = new Tenant("FailTenant", -1);
+    assertThrows(InvalidParameterException.class, () -> {
+      Tenant tenant = new Tenant("FailTenant", -1);
+    });
   }
 }