Fix failing test

Reason:
- Endpoint override conditions are added as else if blocks
- Removed the Disable test annotation as added correct test for validating aws connection details with s3 presigner.

spring-cloud-aws-autoconfigure/src/main/java/io/awspring/cloud/autoconfigure/s3/S3AutoConfiguration.java

@@ -56,6 +56,7 @@
  *
  * @author Maciej Walkowiak
  * @author Matej Nedic
+ * @author Kunal Varpe
  */
 @AutoConfiguration
 @ConditionalOnClass({ S3Client.class, S3OutputStreamProvider.class })
@@ -110,9 +111,16 @@ S3Presigner s3Presigner(S3Properties properties, AwsProperties awsProperties,
 				.credentialsProvider(credentialsProvider).region(AwsClientBuilderConfigurer.resolveRegion(properties,
 						connectionDetails.getIfAvailable(), regionProvider));
 
-		Optional.ofNullable(properties.getEndpoint()).ifPresent(builder::endpointOverride);
-		Optional.ofNullable(awsProperties.getEndpoint()).ifPresent(builder::endpointOverride);
-		Optional.ofNullable(connectionDetails.getIfAvailable()).map(AwsConnectionDetails::getEndpoint).ifPresent(builder::endpointOverride);
+		if (properties.getEndpoint() != null) {
+			builder.endpointOverride(properties.getEndpoint());
+		}
+		else if (awsProperties.getEndpoint() != null) {
+			builder.endpointOverride(awsProperties.getEndpoint());
+		}
+		else if (connectionDetails.getIfAvailable() != null
+				&& connectionDetails.getIfAvailable().getEndpoint() != null) {
+			builder.endpointOverride(connectionDetails.getIfAvailable().getEndpoint());
+		}
 		Optional.ofNullable(awsProperties.getFipsEnabled()).ifPresent(builder::fipsEnabled);
 		Optional.ofNullable(awsProperties.getDualstackEnabled()).ifPresent(builder::dualstackEnabled);
 		return builder.build();

spring-cloud-aws-testcontainers/src/test/java/io/awspring/cloud/testcontainers/AwsContainerConnectionDetailsFactoryTest.java

@@ -28,7 +28,7 @@
 import io.awspring.cloud.autoconfigure.ses.SesAutoConfiguration;
 import io.awspring.cloud.autoconfigure.sns.SnsAutoConfiguration;
 import io.awspring.cloud.autoconfigure.sqs.SqsAutoConfiguration;
-import org.junit.jupiter.api.Disabled;
+import java.time.Duration;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
@@ -42,13 +42,10 @@
 import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
 import software.amazon.awssdk.services.s3.S3Client;
 import software.amazon.awssdk.services.s3.presigner.S3Presigner;
-import software.amazon.awssdk.services.s3.presigner.model.GetObjectPresignRequest;
 import software.amazon.awssdk.services.ses.SesClient;
 import software.amazon.awssdk.services.sns.SnsClient;
 import software.amazon.awssdk.services.sqs.SqsAsyncClient;
 
-import java.time.Duration;
-
 @SpringJUnitConfig
 @Testcontainers(disabledWithoutDocker = true)
 class AwsContainerConnectionDetailsFactoryTest {
@@ -94,11 +91,9 @@ void configuresS3ClientWithServiceConnection(@Autowired S3Client client) {
 	}
 
 	@Test
-	@Disabled
 	void configuresS3PresignerWithServiceConnection(@Autowired S3Presigner s3Presigner) {
 		assertThatCode(() -> s3Presigner.presignGetObject(req1 -> req1.signatureDuration(Duration.ofSeconds(2))
-			.getObjectRequest(req2 -> req2.bucket("my-bucket").build())))
-			.doesNotThrowAnyException();
+				.getObjectRequest(req2 -> req2.bucket("my-bucket").key("test").build()))).doesNotThrowAnyException();
 	}
 
 	@Configuration(proxyBeanMethods = false)