New unit test format

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/ConnectorsHerokuApplication.java

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

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/book/Book.java

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+package com.baeldung.spring.cloud.connectors.heroku.book;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class Book {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String title;
+    private String author;
+
+    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 getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/book/BookController.java

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+package com.baeldung.spring.cloud.connectors.heroku.book;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/books")
+public class BookController {
+
+    private final BookService bookService;
+
+    @Autowired
+    public BookController(BookService bookService) {
+        this.bookService = bookService;
+    }
+
+    @GetMapping("/{bookId}")
+    public Book findBook(@PathVariable Long bookId) {
+        return bookService.findBookById(bookId);
+    }
+
+    @PostMapping
+    public Book createBook(@RequestBody Book book) {
+        return bookService.createBook(book);
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/book/BookRepository.java

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+package com.baeldung.spring.cloud.connectors.heroku.book;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface BookRepository extends JpaRepository<Book, Long>{
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/book/BookService.java

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+package com.baeldung.spring.cloud.connectors.heroku.book;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional(readOnly = true)
+public class BookService {
+    private final BookRepository bookRepository;
+
+    @Autowired
+    public BookService(BookRepository bookRepository) {
+        this.bookRepository = bookRepository;
+    }
+
+    public Book findBookById(Long bookId) {
+        return bookRepository.findOne(bookId);
+    }
+
+    @Transactional(propagation = Propagation.REQUIRED)
+    public Book createBook(Book book) {
+        Book newBook = new Book();
+        newBook.setTitle(book.getTitle());
+        newBook.setAuthor(book.getAuthor());
+        return bookRepository.save(newBook);
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/Product.java

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+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class Product {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long productId;
+    private String sku;
+
+    public Long getProductId() {
+        return productId;
+    }
+
+    public void setProductId(Long productId) {
+        this.productId = productId;
+    }
+
+    public String getSku() {
+        return sku;
+    }
+
+    public void setSku(String sku) {
+        this.sku = sku;
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/ProductController.java

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+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/products")
+public class ProductController {
+
+    private final ProductService productService;
+
+    @Autowired
+    public ProductController(ProductService productService) {
+        this.productService = productService;
+    }
+
+    @GetMapping("/{productId}")
+    public Product findProduct(@PathVariable Long productId) {
+        return productService.findProductById(productId);
+    }
+
+    @PostMapping
+    public Product createProduct(@RequestBody Product product) {
+        return productService.createProduct(product);
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/ProductRepository.java

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+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ProductRepository extends JpaRepository<Product, Long>{
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/ProductService.java

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+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional(readOnly = true)
+public class ProductService {
+    private final ProductRepository productRepository;
+
+    @Autowired
+    public ProductService(ProductRepository productRepository) {
+        this.productRepository = productRepository;
+    }
+
+    public Product findProductById(Long productId) {
+        return productRepository.findOne(productId);
+    }
+
+    @Transactional(propagation = Propagation.REQUIRED)
+    public Product createProduct(Product product) {
+        Product newProduct = new Product();
+        newProduct.setSku(product.getSku());
+        return productRepository.save(newProduct);
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/resources/application.properties

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+spring.datasource.driverClassName=org.postgresql.Driver
+spring.datasource.maxActive=10
+spring.datasource.maxIdle=5
+spring.datasource.minIdle=2
+spring.datasource.initialSize=5
+spring.datasource.removeAbandoned=true
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+
+spring.jpa.hibernate.ddl-auto=update

spring-cloud/spring-cloud-connectors-heroku/src/main/resources/logback.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

spring-cloud/spring-cloud-connectors-heroku/src/test/java/com/baeldung/spring/cloud/connectors/heroku/SpringContextIntegrationTest.java

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+package com.baeldung.spring.cloud.connectors.heroku;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.spring.cloud.connectors.heroku.ConnectorsHerokuApplication;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = ConnectorsHerokuApplication.class)
+public class SpringContextIntegrationTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/test/java/com/baeldung/spring/cloud/connectors/heroku/SpringContextTest.java

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+package com.baeldung.spring.cloud.connectors.heroku;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.spring.cloud.connectors.heroku.ConnectorsHerokuApplication;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = ConnectorsHerokuApplication.class)
+public class SpringContextTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/test/resources/application.properties

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+spring.jpa.hibernate.ddl-auto=create
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect