Formatting and split auto-config tests.

Until we decided what to do with the reactive and imperative auto-configuration,
we will keep both. To remove the `@Nested` annotation but keep it readable the
tests get split up into different classes.

Author: meistermeier

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/neo4j/Neo4jDataConfiguration.java

@@ -60,15 +60,13 @@ class Neo4jDataConfiguration {
 	@ConditionalOnMissingBean
 	@Order(-30)
 	DatabaseSelectionProvider staticDatabaseSelectionProvider(Neo4jDataProperties dataProperties) {
-
 		return DatabaseSelectionProvider.createStaticDatabaseSelectionProvider(dataProperties.getDatabase());
 	}
 
 	@Bean("databaseSelectionProvider")
 	@ConditionalOnMissingBean
 	@Order(-20)
 	DatabaseSelectionProvider defaultSelectionProvider() {
-
 		return DatabaseSelectionProvider.getDefaultSelectionProvider();
 	}
 
@@ -82,18 +80,15 @@ Neo4jClient neo4jClient(Driver driver) {
 	@ConditionalOnMissingBean(Neo4jOperations.class)
 	Neo4jTemplate neo4jTemplate(Neo4jClient neo4jClient, Neo4jMappingContext neo4jMappingContext,
 			DatabaseSelectionProvider databaseNameProvider) {
-
 		return new Neo4jTemplate(neo4jClient, neo4jMappingContext, databaseNameProvider);
 	}
 
 	@Bean(Neo4jRepositoryConfigurationExtension.DEFAULT_TRANSACTION_MANAGER_BEAN_NAME)
 	@ConditionalOnMissingBean(PlatformTransactionManager.class)
 	Neo4jTransactionManager transactionManager(Driver driver, DatabaseSelectionProvider databaseNameProvider,
 			ObjectProvider<TransactionManagerCustomizers> optionalCustomizers) {
-
-		final Neo4jTransactionManager transactionManager = new Neo4jTransactionManager(driver, databaseNameProvider);
+		Neo4jTransactionManager transactionManager = new Neo4jTransactionManager(driver, databaseNameProvider);
 		optionalCustomizers.ifAvailable((customizer) -> customizer.customize(transactionManager));
-
 		return transactionManager;
 	}
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/neo4j/Neo4jReactiveDataConfiguration.java

@@ -52,22 +52,20 @@
 @AutoConfigureAfter(Neo4jDriverAutoConfiguration.class)
 @AutoConfigureBefore(Neo4jReactiveRepositoriesConfiguration.class)
 @Import(Neo4jDefaultReactiveCallbacksRegistrar.class)
-final class Neo4jReactiveDataConfiguration {
+class Neo4jReactiveDataConfiguration {
 
 	@Bean("reactiveDatabaseSelectionProvider")
 	@ConditionalOnProperty(prefix = "spring.data.neo4j", name = "database")
 	@ConditionalOnMissingBean
 	@Order(-30)
 	ReactiveDatabaseSelectionProvider staticDatabaseSelectionProvider(Neo4jDataProperties dataProperties) {
-
 		return ReactiveDatabaseSelectionProvider.createStaticDatabaseSelectionProvider(dataProperties.getDatabase());
 	}
 
 	@Bean("reactiveDatabaseSelectionProvider")
 	@ConditionalOnMissingBean
 	@Order(-20)
 	ReactiveDatabaseSelectionProvider defaultSelectionProvider() {
-
 		return ReactiveDatabaseSelectionProvider.getDefaultSelectionProvider();
 	}
 
@@ -81,15 +79,13 @@ ReactiveNeo4jClient neo4jClient(Driver driver) {
 	@ConditionalOnMissingBean(ReactiveNeo4jOperations.class)
 	ReactiveNeo4jTemplate neo4jTemplate(ReactiveNeo4jClient neo4jClient, Neo4jMappingContext neo4jMappingContext,
 			ReactiveDatabaseSelectionProvider databaseNameProvider) {
-
 		return new ReactiveNeo4jTemplate(neo4jClient, neo4jMappingContext, databaseNameProvider);
 	}
 
 	@Bean(ReactiveNeo4jRepositoryConfigurationExtension.DEFAULT_TRANSACTION_MANAGER_BEAN_NAME)
 	@ConditionalOnMissingBean(ReactiveTransactionManager.class)
 	ReactiveTransactionManager transactionManager(Driver driver,
 			ReactiveDatabaseSelectionProvider databaseNameProvider) {
-
 		return new ReactiveNeo4jTransactionManager(driver, databaseNameProvider);
 	}