[BAEL-2998] - Adding example for @DirtiesContext

testing-modules/spring-testing/pom.xml

@@ -15,18 +15,26 @@
 
     <dependencies>
 
-        <!-- test scoped -->
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>java-hamcrest</artifactId>
             <version>${hamcrest.version}</version>
         </dependency>
 
+       <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>${lombok.version}</version>
+            <scope>provided</scope>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter</artifactId>
             <version>LATEST</version>
         </dependency>
+        
+        <!-- test scoped -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

testing-modules/spring-testing/src/main/java/com/baeldung/dirtiescontext/SpringDataRestApplication.java

@@ -0,0 +1,13 @@
+package com.baeldung.dirtiescontext;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringDataRestApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringDataRestApplication.class, args);
+    }
+
+}

testing-modules/spring-testing/src/main/java/com/baeldung/dirtiescontext/User.java

@@ -0,0 +1,9 @@
+package com.baeldung.dirtiescontext;
+
+public class User {
+
+    String firstName;
+
+    String lastName;
+
+}

testing-modules/spring-testing/src/main/java/com/baeldung/dirtiescontext/UserCache.java

@@ -0,0 +1,30 @@
+package com.baeldung.dirtiescontext;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.springframework.stereotype.Component;
+
+import lombok.Getter;
+import lombok.ToString;
+
+@ToString
+@Component
+public class UserCache {
+
+    @Getter
+    private Set<String> userList = new HashSet<>();
+
+    public boolean addUser(String user) {
+        return userList.add(user);
+    }
+
+    public boolean removeUser(String user) {
+        return userList.remove(user);
+    }
+
+    public void printUserList(String message) {
+        System.out.println(message + ": " + userList);
+    }
+
+}

testing-modules/spring-testing/src/test/java/com/baeldung/dirtiescontext/DirtiesContextTest.java

@@ -0,0 +1,41 @@
+package com.baeldung.dirtiescontext;
+
+import org.junit.jupiter.api.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.annotation.DirtiesContext.MethodMode;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringBootTest(classes = SpringDataRestApplication.class)
+class DirtiesContextTest {
+
+    @Autowired
+    protected UserCache userCache;
+
+    @DirtiesContext(methodMode = MethodMode.AFTER_METHOD)
+    @Test
+    void testOne() {
+        userCache.addUser("John Doe");
+        userCache.printUserList("Test One");
+    }
+
+    @Test
+    void testTwo() {
+        userCache.printUserList("Test Two");
+    }
+
+    @Test
+    void testThree() {
+        userCache.addUser("Jane Doe");
+        userCache.printUserList("Test Three");
+    }
+
+    @Test
+    void testFour() {
+        userCache.printUserList("Test Four");
+    }
+
+}