BAEL-4530: A Guide to @DynamicPropertySource in Spring (#9877)

* A Guide to @DynamicPropertySource in Spring

* Moving to a new module

* Reverting the Changes in the original module

testing-modules/spring-testing-2/src/main/java/com/baeldung/dynamicproperties/Article.java

@@ -0,0 +1,45 @@
+package com.baeldung.dynamicproperties;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+import static javax.persistence.GenerationType.IDENTITY;
+
+@Entity
+@Table(name = "articles")
+public class Article {
+
+    @Id
+    @GeneratedValue(strategy = IDENTITY)
+    private Long id;
+
+    private String title;
+
+    private String content;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+}

testing-modules/spring-testing-2/src/main/java/com/baeldung/dynamicproperties/ArticleRepository.java

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+package com.baeldung.dynamicproperties;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ArticleRepository extends JpaRepository<Article, Long> {
+}

testing-modules/spring-testing-2/src/main/java/com/baeldung/dynamicproperties/DynamicPropertiesApplication.java

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+package com.baeldung.dynamicproperties;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DynamicPropertiesApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(DynamicPropertiesApplication.class, args);
+    }
+}