[Do Not Merge Yet] Spring Boot 4 compatibility

auto-configurations/common/spring-ai-autoconfigure-retry/pom.xml

@@ -62,6 +62,12 @@
 			<scope>test</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-restclient</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 		<dependency>
 			<groupId>org.mockito</groupId>
 			<artifactId>mockito-core</artifactId>

auto-configurations/common/spring-ai-autoconfigure-retry/src/main/java/org/springframework/ai/retry/autoconfigure/SpringAiRetryAutoConfiguration.java

@@ -17,7 +17,9 @@
 package org.springframework.ai.retry.autoconfigure;
 
 import java.io.IOException;
+import java.net.URI;
 import java.nio.charset.StandardCharsets;
+import java.util.concurrent.atomic.AtomicInteger;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -30,12 +32,13 @@
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
+import org.springframework.core.retry.RetryListener;
+import org.springframework.core.retry.RetryPolicy;
+import org.springframework.core.retry.RetryTemplate;
+import org.springframework.core.retry.Retryable;
+import org.springframework.http.HttpMethod;
 import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.lang.NonNull;
-import org.springframework.retry.RetryCallback;
-import org.springframework.retry.RetryContext;
-import org.springframework.retry.RetryListener;
-import org.springframework.retry.support.RetryTemplate;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.StreamUtils;
 import org.springframework.web.client.ResponseErrorHandler;
@@ -58,21 +61,25 @@ public class SpringAiRetryAutoConfiguration {
 	@Bean
 	@ConditionalOnMissingBean
 	public RetryTemplate retryTemplate(SpringAiRetryProperties properties) {
-		return RetryTemplate.builder()
+		RetryPolicy retryPolicy = RetryPolicy.builder()
 			.maxAttempts(properties.getMaxAttempts())
-			.retryOn(TransientAiException.class)
-			.exponentialBackoff(properties.getBackoff().getInitialInterval(), properties.getBackoff().getMultiplier(),
-					properties.getBackoff().getMaxInterval())
-			.withListener(new RetryListener() {
-
-				@Override
-				public <T, E extends Throwable> void onError(RetryContext context, RetryCallback<T, E> callback,
-						Throwable throwable) {
-					logger.warn("Retry error. Retry count: {}, Exception: {}", context.getRetryCount(),
-							throwable.getMessage(), throwable);
-				}
-			})
+			.includes(TransientAiException.class)
+			.delay(properties.getBackoff().getInitialInterval())
+			.multiplier(properties.getBackoff().getMultiplier())
+			.maxDelay(properties.getBackoff().getMaxInterval())
 			.build();
+
+		RetryTemplate retryTemplate = new RetryTemplate(retryPolicy);
+		retryTemplate.setRetryListener(new RetryListener() {
+			private final AtomicInteger retryCount = new AtomicInteger(0);
+
+			@Override
+			public void onRetryFailure(RetryPolicy policy, Retryable<?> retryable, Throwable throwable) {
+				int currentRetries = retryCount.incrementAndGet();
+				logger.warn("Retry error. Retry count:{}", currentRetries, throwable);
+			}
+		});
+		return retryTemplate;
 	}
 
 	@Bean
@@ -87,7 +94,8 @@ public boolean hasError(@NonNull ClientHttpResponse response) throws IOException
 			}
 
 			@Override
-			public void handleError(@NonNull ClientHttpResponse response) throws IOException {
+			public void handleError(URI url, HttpMethod method, @NonNull ClientHttpResponse response)
+					throws IOException {
 				if (!response.getStatusCode().isError()) {
 					return;
 				}

auto-configurations/common/spring-ai-autoconfigure-retry/src/test/java/org/springframework/ai/retry/autoconfigure/SpringAiRetryAutoConfigurationIT.java

@@ -19,9 +19,9 @@
 import org.junit.jupiter.api.Test;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
+import org.springframework.boot.restclient.autoconfigure.RestClientAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
-import org.springframework.retry.support.RetryTemplate;
+import org.springframework.core.retry.RetryTemplate;
 import org.springframework.web.client.ResponseErrorHandler;
 
 import static org.assertj.core.api.Assertions.assertThat;

auto-configurations/mcp/spring-ai-autoconfigure-mcp-server-webflux/src/test/java/org/springframework/ai/mcp/server/autoconfigure/McpServerSseWebFluxAutoConfigurationTests.java

@@ -16,17 +16,17 @@
 
 package org.springframework.ai.mcp.server.autoconfigure;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 import io.modelcontextprotocol.server.transport.WebFluxSseServerTransportProvider;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.ai.mcp.server.common.autoconfigure.properties.McpServerProperties;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration;
+import org.springframework.boot.jackson.autoconfigure.JacksonAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.reactive.function.server.RouterFunction;
+import tools.jackson.databind.ObjectMapper;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -46,8 +46,8 @@ void shouldConfigureWebFluxTransportWithCustomObjectMapper() {
 			ObjectMapper objectMapper = context.getBean(ObjectMapper.class);
 
 			// Verify that the ObjectMapper is configured to ignore unknown properties
-			assertThat(objectMapper.getDeserializationConfig()
-				.isEnabled(com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES)).isFalse();
+			assertThat(objectMapper.deserializationConfig()
+				.isEnabled(tools.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES)).isFalse();
 
 			// Test with a JSON payload containing unknown fields
 			// CHECKSTYLE:OFF

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-cassandra/pom.xml

@@ -53,6 +53,11 @@
 			<optional>true</optional>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-cassandra</artifactId>
+		</dependency>
+
 		<!-- Test dependencies -->
 		<dependency>
 			<groupId>org.springframework.ai</groupId>

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-cassandra/src/main/java/org/springframework/ai/model/chat/memory/repository/cassandra/autoconfigure/CassandraChatMemoryRepositoryAutoConfiguration.java

@@ -22,7 +22,7 @@
 import org.springframework.ai.chat.memory.repository.cassandra.CassandraChatMemoryRepositoryConfig;
 import org.springframework.ai.model.chat.memory.autoconfigure.ChatMemoryAutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
-import org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration;
+import org.springframework.boot.cassandra.autoconfigure.CassandraAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-cassandra/src/test/java/org/springframework/ai/model/chat/memory/repository/cassandra/autoconfigure/CassandraChatMemoryRepositoryAutoConfigurationIT.java

@@ -31,7 +31,7 @@
 import org.springframework.ai.chat.messages.MessageType;
 import org.springframework.ai.chat.messages.UserMessage;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration;
+import org.springframework.boot.cassandra.autoconfigure.CassandraAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 
 import static org.assertj.core.api.Assertions.assertThat;

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-cosmos-db/pom.xml

@@ -81,6 +81,11 @@
 			<version>${azure-identity.version}</version>
 		</dependency>
 
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>jcl-over-slf4j</artifactId>
+		</dependency>
+
         <!-- Test dependencies -->
         <dependency>
             <groupId>org.springframework.boot</groupId>

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-jdbc/pom.xml

@@ -53,13 +53,24 @@
 			<optional>true</optional>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-jdbc</artifactId>
+		</dependency>
+
 		<!-- Test dependencies -->
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-jdbc</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 		<dependency>
 			<groupId>org.postgresql</groupId>
 			<artifactId>postgresql</artifactId>

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-jdbc/src/main/java/org/springframework/ai/model/chat/memory/repository/jdbc/autoconfigure/JdbcChatMemoryRepositoryAutoConfiguration.java

@@ -24,8 +24,8 @@
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
-import org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration;
-import org.springframework.boot.autoconfigure.sql.init.OnDatabaseInitializationCondition;
+import org.springframework.boot.jdbc.autoconfigure.JdbcTemplateAutoConfiguration;
+import org.springframework.boot.sql.autoconfigure.init.OnDatabaseInitializationCondition;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Conditional;

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-jdbc/src/test/java/org/springframework/ai/model/chat/memory/repository/jdbc/autoconfigure/JdbcChatMemoryRepositoryHsqldbAutoConfigurationIT.java

@@ -29,7 +29,6 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringBootConfiguration;
 import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
-import org.springframework.boot.autoconfigure.sql.init.SqlInitializationAutoConfiguration;
 import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.context.ApplicationContext;
@@ -52,9 +51,8 @@
 @AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.ANY)
 @ImportAutoConfiguration({ org.springframework.ai.model.chat.memory.autoconfigure.ChatMemoryAutoConfiguration.class,
 		JdbcChatMemoryRepositoryAutoConfiguration.class,
-		org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration.class,
-		org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration.class,
-		SqlInitializationAutoConfiguration.class })
+		org.springframework.boot.jdbc.autoconfigure.JdbcTemplateAutoConfiguration.class,
+		org.springframework.boot.jdbc.autoconfigure.DataSourceAutoConfiguration.class })
 public class JdbcChatMemoryRepositoryHsqldbAutoConfigurationIT {
 
 	@Autowired

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-jdbc/src/test/java/org/springframework/ai/model/chat/memory/repository/jdbc/autoconfigure/JdbcChatMemoryRepositoryPostgresqlAutoConfigurationIT.java

@@ -28,8 +28,8 @@
 import org.springframework.ai.chat.messages.UserMessage;
 import org.springframework.ai.model.chat.memory.autoconfigure.ChatMemoryAutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
-import org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration;
+import org.springframework.boot.jdbc.autoconfigure.DataSourceAutoConfiguration;
+import org.springframework.boot.jdbc.autoconfigure.JdbcTemplateAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 
 import static org.assertj.core.api.Assertions.assertThat;

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-jdbc/src/test/java/org/springframework/ai/model/chat/memory/repository/jdbc/autoconfigure/JdbcChatMemoryRepositorySchemaInitializerPostgresqlTests.java

@@ -25,8 +25,8 @@
 import org.testcontainers.utility.DockerImageName;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
-import org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration;
+import org.springframework.boot.jdbc.autoconfigure.DataSourceAutoConfiguration;
+import org.springframework.boot.jdbc.autoconfigure.JdbcTemplateAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 
 import static org.assertj.core.api.Assertions.assertThat;

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-jdbc/src/test/java/org/springframework/ai/model/chat/memory/repository/jdbc/autoconfigure/JdbcChatMemoryRepositorySqlServerAutoConfigurationIT.java

@@ -33,8 +33,8 @@
 import org.springframework.ai.chat.messages.UserMessage;
 import org.springframework.ai.model.chat.memory.autoconfigure.ChatMemoryAutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
-import org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration;
+import org.springframework.boot.jdbc.autoconfigure.DataSourceAutoConfiguration;
+import org.springframework.boot.jdbc.autoconfigure.JdbcTemplateAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 
 import static org.assertj.core.api.Assertions.assertThat;

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-neo4j/pom.xml

@@ -53,6 +53,11 @@
 			<optional>true</optional>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-neo4j</artifactId>
+		</dependency>
+
 		<!-- Test dependencies -->
 		<dependency>
 			<groupId>org.springframework.ai</groupId>

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-neo4j/src/main/java/org/springframework/ai/model/chat/memory/repository/neo4j/autoconfigure/Neo4jChatMemoryRepositoryAutoConfiguration.java

@@ -24,7 +24,7 @@
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
-import org.springframework.boot.autoconfigure.neo4j.Neo4jAutoConfiguration;
+import org.springframework.boot.neo4j.autoconfigure.Neo4jAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 

auto-configurations/models/chat/memory/repository/spring-ai-autoconfigure-model-chat-memory-repository-neo4j/src/test/java/org/springframework/ai/model/chat/memory/repository/neo4j/autoconfigure/Neo4jChatMemoryRepositoryAutoConfigurationIT.java

@@ -39,7 +39,7 @@
 import org.springframework.ai.chat.messages.UserMessage;
 import org.springframework.ai.content.Media;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.neo4j.Neo4jAutoConfiguration;
+import org.springframework.boot.neo4j.autoconfigure.Neo4jAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.util.MimeType;
 

auto-configurations/models/spring-ai-autoconfigure-model-anthropic/pom.xml

@@ -72,6 +72,18 @@
 			<optional>true</optional>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-restclient</artifactId>
+			<optional>true</optional>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-webclient</artifactId>
+			<optional>true</optional>
+		</dependency>
+
 		<!-- Test dependencies -->
 		<dependency>
 			<groupId>org.springframework.ai</groupId>

auto-configurations/models/spring-ai-autoconfigure-model-anthropic/src/main/java/org/springframework/ai/model/anthropic/autoconfigure/AnthropicChatAutoConfiguration.java

@@ -33,12 +33,12 @@
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
-import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
-import org.springframework.boot.autoconfigure.web.reactive.function.client.WebClientAutoConfiguration;
+import org.springframework.boot.restclient.autoconfigure.RestClientAutoConfiguration;
+import org.springframework.boot.webclient.autoconfigure.WebClientAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
+import org.springframework.core.retry.RetryTemplate;
 import org.springframework.context.annotation.Import;
-import org.springframework.retry.support.RetryTemplate;
 import org.springframework.web.client.ResponseErrorHandler;
 import org.springframework.web.client.RestClient;
 import org.springframework.web.reactive.function.client.WebClient;

auto-configurations/models/spring-ai-autoconfigure-model-anthropic/src/test/java/org/springframework/ai/model/anthropic/autoconfigure/AnthropicPropertiesTests.java

@@ -22,7 +22,7 @@
 import org.springframework.ai.anthropic.api.AnthropicApi.ToolChoiceTool;
 import org.springframework.ai.retry.autoconfigure.SpringAiRetryAutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
+import org.springframework.boot.restclient.autoconfigure.RestClientAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 
 import static org.assertj.core.api.Assertions.assertThat;

auto-configurations/models/spring-ai-autoconfigure-model-anthropic/src/test/java/org/springframework/ai/model/anthropic/autoconfigure/BaseAnthropicIT.java

@@ -22,8 +22,8 @@
 import org.springframework.ai.model.tool.autoconfigure.ToolCallingAutoConfiguration;
 import org.springframework.ai.retry.autoconfigure.SpringAiRetryAutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
-import org.springframework.boot.autoconfigure.web.reactive.function.client.WebClientAutoConfiguration;
+import org.springframework.boot.restclient.autoconfigure.RestClientAutoConfiguration;
+import org.springframework.boot.webclient.autoconfigure.WebClientAutoConfiguration;
 
 public abstract class BaseAnthropicIT {
 

auto-configurations/models/spring-ai-autoconfigure-model-deepseek/pom.xml

@@ -72,6 +72,16 @@
 			<optional>true</optional>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-restclient</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-webclient</artifactId>
+		</dependency>
+
 		<!-- Test dependencies -->
 		<dependency>
 			<groupId>org.springframework.ai</groupId>

auto-configurations/models/spring-ai-autoconfigure-model-deepseek/src/main/java/org/springframework/ai/model/deepseek/autoconfigure/DeepSeekChatAutoConfiguration.java

@@ -34,11 +34,11 @@
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
-import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
-import org.springframework.boot.autoconfigure.web.reactive.function.client.WebClientAutoConfiguration;
+import org.springframework.boot.restclient.autoconfigure.RestClientAutoConfiguration;
+import org.springframework.boot.webclient.autoconfigure.WebClientAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
-import org.springframework.retry.support.RetryTemplate;
+import org.springframework.core.retry.RetryTemplate;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
 import org.springframework.web.client.ResponseErrorHandler;

auto-configurations/models/spring-ai-autoconfigure-model-deepseek/src/test/java/org/springframework/ai/model/deepseek/autoconfigure/BaseDeepSeekIT.java

@@ -22,8 +22,8 @@
 import org.springframework.ai.model.tool.autoconfigure.ToolCallingAutoConfiguration;
 import org.springframework.ai.retry.autoconfigure.SpringAiRetryAutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
-import org.springframework.boot.autoconfigure.web.reactive.function.client.WebClientAutoConfiguration;
+import org.springframework.boot.restclient.autoconfigure.RestClientAutoConfiguration;
+import org.springframework.boot.webclient.autoconfigure.WebClientAutoConfiguration;
 
 /**
  * Base utility class for DeepSeek integration tests.