Merge pull request #10122 from j0rdanit0/BAEL-4590

Added code examples from the article.

persistence-modules/spring-persistence-simple/pom.xml

@@ -72,6 +72,12 @@
             <version>${org.springframework.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+            <version>${spring-boot-starter.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>

persistence-modules/spring-persistence-simple/src/test/java/com/baeldung/transactional/TransactionalDetectionUnitTest.java

@@ -0,0 +1,27 @@
+package com.baeldung.transactional;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.transaction.support.TransactionSynchronizationManager;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+@SpringBootApplication
+@RunWith(SpringJUnit4ClassRunner.class)
+public class TransactionalDetectionUnitTest {
+
+    @Test
+    @Transactional
+    public void givenTransactional_whenCheckingForActiveTransaction_thenReceiveTrue() {
+        assertTrue(TransactionSynchronizationManager.isActualTransactionActive());
+    }
+
+    @Test
+    public void givenNoTransactional_whenCheckingForActiveTransaction_thenReceiveFalse() {
+        assertFalse(TransactionSynchronizationManager.isActualTransactionActive());
+    }
+}