Updated update-method module to JUnit 5 (#1542)

* Updated saga to JUnit 5

* Update fix for CI job in trampoline module

* Updated update-method module to JUnit 5

* Upgraded to latest JUnit Jupiter
JUnit 4 is not needed when using JUnit-Vintage

* Reverted change to access modifier on Trampoline

* Cleanup to resolve code smells

* Formatting

* Formatting

Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>

pom.xml

@@ -41,8 +41,8 @@
         <spring-data.version>2.0.14.RELEASE</spring-data.version>
         <h2.version>1.4.190</h2.version>
         <junit.version>4.12</junit.version>
-        <junit-jupiter.version>5.5.2</junit-jupiter.version>
-        <junit-vintage.version>${junit.version}.2</junit-vintage.version>
+        <junit-jupiter.version>5.7.1</junit-jupiter.version>
+        <junit-vintage.version>${junit-jupiter.version}</junit-vintage.version>
         <sping-test-junit5.version>1.0.2</sping-test-junit5.version>
         <compiler.version>3.8.1</compiler.version>
         <jacoco.version>0.8.6</jacoco.version>
@@ -274,12 +274,6 @@
                 <artifactId>camel-stream</artifactId>
                 <version>${camel.version}</version>
             </dependency>
-            <dependency>
-                <groupId>junit</groupId>
-                <artifactId>junit</artifactId>
-                <version>${junit.version}</version>
-                <scope>test</scope>
-            </dependency>
             <dependency>
                 <groupId>org.junit.jupiter</groupId>
                 <artifactId>junit-jupiter-api</artifactId>

saga/pom.xml

@@ -35,11 +35,6 @@
 
     <artifactId>saga</artifactId>
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>

saga/src/test/java/com/iluwatar/saga/choreography/SagaApplicationTest.java

@@ -23,18 +23,19 @@
 
 package com.iluwatar.saga.choreography;
 
-import com.iluwatar.saga.orchestration.SagaApplication;
-import org.junit.Test;
-
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 
+import com.iluwatar.saga.orchestration.SagaApplication;
+import org.junit.jupiter.api.Test;
+
 
 /***
  * empty test
  */
-public class SagaApplicationTest {
+class SagaApplicationTest {
+
   @Test
-  public void shouldExecuteWithoutException() {
+  void shouldExecuteWithoutException() {
     assertDoesNotThrow(() -> SagaApplication.main(new String[]{}));
   }
 }

saga/src/test/java/com/iluwatar/saga/choreography/SagaChoreographyTest.java

@@ -23,24 +23,25 @@
 
 package com.iluwatar.saga.choreography;
 
-import org.junit.Assert;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * test to check choreography saga
  */
-public class SagaChoreographyTest {
+class SagaChoreographyTest {
 
 
   @Test
-  public void executeTest() {
+  void executeTest() {
     var sd = serviceDiscovery();
     var service = sd.findAny();
     var badOrderSaga = service.execute(newSaga("bad_order"));
     var goodOrderSaga = service.execute(newSaga("good_order"));
 
-    Assert.assertEquals(badOrderSaga.getResult(), Saga.SagaResult.ROLLBACKED);
-    Assert.assertEquals(goodOrderSaga.getResult(), Saga.SagaResult.FINISHED);
+    assertEquals(Saga.SagaResult.ROLLBACKED, badOrderSaga.getResult());
+    assertEquals(Saga.SagaResult.FINISHED, goodOrderSaga.getResult());
   }
 
   private static Saga newSaga(Object value) {

saga/src/test/java/com/iluwatar/saga/orchestration/SagaApplicationTest.java

@@ -23,15 +23,15 @@
 
 package com.iluwatar.saga.orchestration;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * empty test
  */
-public class SagaApplicationTest {
+class SagaApplicationTest {
 
   @Test
-  public void mainTest() {
+  void mainTest() {
     SagaApplication.main(new String[]{});
   }
 }

saga/src/test/java/com/iluwatar/saga/orchestration/SagaOrchestratorInternallyTest.java

@@ -23,28 +23,30 @@
 
 package com.iluwatar.saga.orchestration;
 
+import org.junit.jupiter.api.Test;
+
 import static com.iluwatar.saga.orchestration.Saga.Result;
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.ArrayList;
 import java.util.List;
-import org.junit.Assert;
-import org.junit.Test;
 
 /**
  * test to test orchestration logic
  */
-public class SagaOrchestratorInternallyTest {
+class SagaOrchestratorInternallyTest {
 
   private final List<String> records = new ArrayList<>();
 
   @Test
-  public void executeTest() {
+  void executeTest() {
     var sagaOrchestrator = new SagaOrchestrator(newSaga(), serviceDiscovery());
     var result = sagaOrchestrator.execute(1);
-    Assert.assertEquals(result, Result.ROLLBACK);
-    Assert.assertArrayEquals(
-        records.toArray(new String[]{}),
-        new String[]{"+1", "+2", "+3", "+4", "-4", "-3", "-2", "-1"});
+    assertEquals(Result.ROLLBACK, result);
+    assertArrayEquals(
+            new String[]{"+1", "+2", "+3", "+4", "-4", "-3", "-2", "-1"},
+            records.toArray(new String[]{}));
   }
 
   private static Saga newSaga() {

saga/src/test/java/com/iluwatar/saga/orchestration/SagaOrchestratorTest.java

@@ -23,22 +23,23 @@
 
 package com.iluwatar.saga.orchestration;
 
-import org.junit.Assert;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * test to check general logic
  */
-public class SagaOrchestratorTest {
+class SagaOrchestratorTest {
 
   @Test
-  public void execute() {
+  void execute() {
     SagaOrchestrator sagaOrchestrator = new SagaOrchestrator(newSaga(), serviceDiscovery());
     Saga.Result badOrder = sagaOrchestrator.execute("bad_order");
     Saga.Result crashedOrder = sagaOrchestrator.execute("crashed_order");
 
-    Assert.assertEquals(badOrder, Saga.Result.ROLLBACK);
-    Assert.assertEquals(crashedOrder, Saga.Result.CRASHED);
+    assertEquals(Saga.Result.ROLLBACK, badOrder);
+    assertEquals(Saga.Result.CRASHED, crashedOrder);
   }
 
   private static Saga newSaga() {

trampoline/src/main/java/com/iluwatar/trampoline/Trampoline.java

@@ -98,7 +98,7 @@ public interface Trampoline<T> {
         return trampoline(this);
       }
 
-      private T trampoline(final Trampoline<T> trampoline) {
+      T trampoline(final Trampoline<T> trampoline) {
         return Stream.iterate(trampoline, Trampoline::jump)
             .filter(Trampoline::complete)
             .findFirst()

update-method/pom.xml

@@ -35,10 +35,6 @@
 
     <artifactId>update-method</artifactId>
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>

update-method/src/test/java/com/iluwatar/updatemethod/AppTest.java

@@ -23,14 +23,14 @@
 
 package com.iluwatar.updatemethod;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 
-public class AppTest {
+class AppTest {
 
   @Test
-  public void shouldExecuteApplicationWithoutException() {
+  void shouldExecuteApplicationWithoutException() {
     assertDoesNotThrow(() -> App.main(new String[]{}));
   }
 }

update-method/src/test/java/com/iluwatar/updatemethod/SkeletonTest.java

@@ -23,56 +23,60 @@
 
 package com.iluwatar.updatemethod;
 
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
 
-public class SkeletonTest {
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
-  private Skeleton skeleton;
 
-  @Before
-  public void setup() {
+class SkeletonTest {
+
+  private static Skeleton skeleton;
+
+  @BeforeAll
+  public static void setup() {
     skeleton = new Skeleton(1);
   }
 
-  @After
-  public void tearDown() {
+  @AfterAll
+  public static void tearDown() {
     skeleton = null;
   }
 
   @Test
-  public void testUpdateForPatrollingLeft() {
+  void testUpdateForPatrollingLeft() {
     skeleton.patrollingLeft = true;
     skeleton.setPosition(50);
     skeleton.update();
-    Assert.assertEquals(49, skeleton.getPosition());
+    assertEquals(49, skeleton.getPosition());
   }
 
   @Test
-  public void testUpdateForPatrollingRight() {
+  void testUpdateForPatrollingRight() {
     skeleton.patrollingLeft = false;
     skeleton.setPosition(50);
     skeleton.update();
-    Assert.assertEquals(51, skeleton.getPosition());
+    assertEquals(51, skeleton.getPosition());
   }
 
   @Test
-  public void testUpdateForReverseDirectionFromLeftToRight() {
+  void testUpdateForReverseDirectionFromLeftToRight() {
     skeleton.patrollingLeft = true;
     skeleton.setPosition(1);
     skeleton.update();
-    Assert.assertEquals(0, skeleton.getPosition());
-    Assert.assertEquals(false, skeleton.patrollingLeft);
+    assertEquals(0, skeleton.getPosition());
+    assertFalse(skeleton.patrollingLeft);
   }
 
   @Test
-  public void testUpdateForReverseDirectionFromRightToLeft() {
+  void testUpdateForReverseDirectionFromRightToLeft() {
     skeleton.patrollingLeft = false;
     skeleton.setPosition(99);
     skeleton.update();
-    Assert.assertEquals(100, skeleton.getPosition());
-    Assert.assertEquals(true, skeleton.patrollingLeft);
+    assertEquals(100, skeleton.getPosition());
+    assertTrue(skeleton.patrollingLeft);
   }
 }

update-method/src/test/java/com/iluwatar/updatemethod/StatueTest.java

@@ -23,36 +23,37 @@
 
 package com.iluwatar.updatemethod;
 
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
 
-public class StatueTest {
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-  private Statue statue;
+class StatueTest {
 
-  @Before
-  public void setup() {
+  private static Statue statue;
+
+  @BeforeAll
+  public static void setup() {
     statue = new Statue(1, 20);
   }
 
-  @After
-  public void tearDown() {
+  @AfterAll
+  public static void tearDown() {
     statue = null;
   }
 
   @Test
-  public void testUpdateForPendingShoot() {
+  void testUpdateForPendingShoot() {
     statue.frames = 10;
     statue.update();
-    Assert.assertEquals(11, statue.frames);
+    assertEquals(11, statue.frames);
   }
 
   @Test
-  public void testUpdateForShooting() {
+  void testUpdateForShooting() {
     statue.frames = 19;
     statue.update();
-    Assert.assertEquals(0, statue.frames);
+    assertEquals(0, statue.frames);
   }
 }

update-method/src/test/java/com/iluwatar/updatemethod/WorldTest.java

@@ -23,41 +23,44 @@
 
 package com.iluwatar.updatemethod;
 
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
 
-public class WorldTest {
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
-  private World world;
+class WorldTest {
 
-  @Before
-  public void setup() {
+  private static World world;
+
+  @BeforeAll
+  public static void setup() {
     world = new World();
   }
 
-  @After
-  public void tearDown() {
+  @AfterAll
+  public static void tearDown() {
     world = null;
   }
 
   @Test
-  public void testRun() {
+  void testRun() {
     world.run();
-    Assert.assertEquals(true, world.isRunning);
+    assertTrue(world.isRunning);
   }
 
   @Test
-  public void testStop() {
+  void testStop() {
     world.stop();
-    Assert.assertEquals(false, world.isRunning);
+    assertFalse(world.isRunning);
   }
 
   @Test
-  public void testAddEntity() {
+  void testAddEntity() {
     var entity = new Skeleton(1);
     world.addEntity(entity);
-    Assert.assertEquals(entity, world.entities.get(0));
+    assertEquals(entity, world.entities.get(0));
   }
 }