Try Local Stack for testing

build.gradle

@@ -28,6 +28,7 @@ ext {
 	dynamodbLockClientVersion = '1.1.0'
 	jacksonVersion = '2.10.0'
 	servletApiVersion = '4.0.1'
+    localstackVersion = '0.1.22'
 	log4jVersion = '2.12.1'
 	springCloudAwsVersion = '2.2.0.BUILD-SNAPSHOT'
 	springIntegrationVersion = '5.2.1.BUILD-SNAPSHOT'
@@ -108,6 +109,7 @@ dependencies {
 
 	testCompile 'org.springframework.integration:spring-integration-test'
 	testCompile "org.assertj:assertj-core:$assertjVersion"
+	testCompile "cloud.localstack:localstack-utils:$localstackVersion"
 
 	testCompile ("org.awaitility:awaitility:$awaitilityVersion") {
 		exclude group: 'org.hamcrest'

src/test/java/org/springframework/integration/aws/MyCloudAppTests.java

@@ -0,0 +1,22 @@
+package org.springframework.integration.aws;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import cloud.localstack.LocalstackTestRunner;
+import cloud.localstack.TestUtils;
+import com.amazonaws.services.s3.AmazonS3;
+
+@RunWith(LocalstackTestRunner.class)
+public class MyCloudAppTests {
+
+
+	@Test
+	public void testLocalS3API() {
+		AmazonS3 s3 = TestUtils.getClientS3();
+		assertThat(s3).isNotNull();
+	}
+
+}