build.gradle.kts

@@ -41,6 +41,7 @@ dependencies {
 
 	testImplementation("org.springframework.boot:spring-boot-starter-test")
 	testImplementation("org.springframework.security:spring-security-test")
+	testImplementation("org.assertj:assertj-core")
 
 	testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }

src/main/java/de/mlessmann/certassist/config/DatabaseConfig.java

@@ -16,10 +16,14 @@ import java.util.Properties;
 
 @Configuration
 @RequiredArgsConstructor
-//@EnableJpaRepositories(basePackages = "de.mlessmann.certassist.repositories")
+@EnableJpaRepositories(basePackages = "de.mlessmann.certassist.repositories")
 @PropertySource("classpath:persistence.properties")
 public class DatabaseConfig {
 
+    private static final String HIBERNATE_DIALECT_PROPERTY = "hibernate.dialect";
+    private static final String HIBERNATE_HBM_2_DDL_AUTO_PROPERTY = "hibernate.hbm2ddl.auto";
+    private static final String HIBERNATE_SHOW_SQL_PROPERTY = "hibernate.show_sql";
+
     final Environment env;
 
     @Bean
@@ -36,7 +40,7 @@ public class DatabaseConfig {
     public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
         final LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
         entityManagerFactory.setDataSource(dataSource());
-        //entityManagerFactory.setPackagesToScan("de.mlessmann.certassist.models");
+        entityManagerFactory.setPackagesToScan("de.mlessmann.certassist.models");
         entityManagerFactory.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
         entityManagerFactory.setJpaProperties(additionalProperties());
         return entityManagerFactory;
@@ -44,15 +48,16 @@ public class DatabaseConfig {
 
     final Properties additionalProperties() {
         final Properties hibernateProperties = new Properties();
-        if (env.getProperty("hibernate.hbm2ddl.auto") != null) {
+        if (env.getProperty(HIBERNATE_HBM_2_DDL_AUTO_PROPERTY) != null) {
-            hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
+            hibernateProperties.setProperty(HIBERNATE_HBM_2_DDL_AUTO_PROPERTY, env.getProperty(HIBERNATE_HBM_2_DDL_AUTO_PROPERTY));
         }
-        if (env.getProperty("hibernate.dialect") != null) {
+        if (env.getProperty(HIBERNATE_DIALECT_PROPERTY) != null) {
-            hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
+            hibernateProperties.setProperty(HIBERNATE_DIALECT_PROPERTY, env.getProperty(HIBERNATE_DIALECT_PROPERTY));
         }
-        if (env.getProperty("hibernate.show_sql") != null) {
+        if (env.getProperty(HIBERNATE_SHOW_SQL_PROPERTY) != null) {
-            hibernateProperties.setProperty("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
+            hibernateProperties.setProperty(HIBERNATE_SHOW_SQL_PROPERTY, env.getProperty(HIBERNATE_SHOW_SQL_PROPERTY));
         }
+
         return hibernateProperties;
     }
 

src/main/java/de/mlessmann/certassist/models/User.java

@@ -0,0 +1,20 @@
+package de.mlessmann.certassist.models;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.Getter;
+import lombok.Setter;
+
+@Entity
+@Getter
+public class User {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.SEQUENCE)
+    private Long id;
+
+    @Setter
+    private String username;
+}

src/main/java/de/mlessmann/certassist/repositories/UserRepository.java

@@ -0,0 +1,11 @@
+package de.mlessmann.certassist.repositories;
+
+import de.mlessmann.certassist.models.User;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface UserRepository extends CrudRepository<User, Long> {
+
+    User findUserById(long id);
+}

src/test/java/de/mlessmann/certassist/repositories/UserRepositoryTest.java

@@ -0,0 +1,24 @@
+package de.mlessmann.certassist.repositories;
+
+import de.mlessmann.certassist.models.User;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@SpringBootTest
+class UserRepositoryTest {
+
+    @Autowired
+    private UserRepository userRepository;
+
+    @Test
+    void findUserById() {
+        final User user = new User();
+        user.setUsername("test");
+        userRepository.save(user);
+
+        assertThat(userRepository.findUserById(user.getId()).getUsername()).isEqualTo("test");
+    }
+}