diff --git a/spring-webflux/src/test/java/org/springframework/web/reactive/result/method/annotation/MultipartIntegrationTests.java b/spring-webflux/src/test/java/org/springframework/web/reactive/result/method/annotation/MultipartIntegrationTests.java
index 523f06f609..e5c68c84ff 100644
--- a/spring-webflux/src/test/java/org/springframework/web/reactive/result/method/annotation/MultipartIntegrationTests.java
+++ b/spring-webflux/src/test/java/org/springframework/web/reactive/result/method/annotation/MultipartIntegrationTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -119,6 +119,36 @@ public class MultipartIntegrationTests extends AbstractHttpHandlerIntegrationTes
 				.verifyComplete();
 	}
 
+	@Test
+	public void filePartsFlux() {
+		Mono<String> result = webClient
+				.post()
+				.uri("/filePartFlux")
+				.syncBody(generateBody())
+				.retrieve()
+				.bodyToMono(String.class);
+
+		StepVerifier.create(result)
+				.consumeNextWith(body -> assertEquals(
+						"[fileParts:foo.txt,fileParts:logo.png]", body))
+				.verifyComplete();
+	}
+
+	@Test
+	public void filePartsMono() {
+		Mono<String> result = webClient
+				.post()
+				.uri("/filePartMono")
+				.syncBody(generateBody())
+				.retrieve()
+				.bodyToMono(String.class);
+
+		StepVerifier.create(result)
+				.consumeNextWith(body -> assertEquals(
+						"[fileParts:foo.txt]", body))
+				.verifyComplete();
+	}
+
 	@Test
 	public void modelAttribute() {
 		Mono<String> result = webClient
@@ -160,25 +190,12 @@ public class MultipartIntegrationTests extends AbstractHttpHandlerIntegrationTes
 	static class MultipartController {
 
 		@PostMapping("/requestPart")
-		void requestPart(
-				@RequestPart FormFieldPart fieldPart,
+		void requestPart(@RequestPart FormFieldPart fieldPart,
 				@RequestPart("fileParts") FilePart fileParts,
-				@RequestPart("fileParts") Mono<FilePart> filePartsMono,
-				@RequestPart("fileParts") Flux<FilePart> filePartsFlux,
-				@RequestPart("jsonPart") Person person,
 				@RequestPart("jsonPart") Mono<Person> personMono) {
 
 			assertEquals("fieldValue", fieldPart.value());
 			assertEquals("fileParts:foo.txt", partDescription(fileParts));
-			assertEquals("Jason", person.getName());
-
-			StepVerifier.create(partFluxDescription(filePartsFlux))
-					.consumeNextWith(content -> assertEquals("[fileParts:foo.txt,fileParts:logo.png]", content))
-					.verifyComplete();
-
-			StepVerifier.create(filePartsMono)
-					.consumeNextWith(filePart -> assertEquals("fileParts:foo.txt", partDescription(filePart)))
-					.verifyComplete();
 
 			StepVerifier.create(personMono)
 					.consumeNextWith(p -> assertEquals("Jason", p.getName()))
@@ -195,6 +212,16 @@ public class MultipartIntegrationTests extends AbstractHttpHandlerIntegrationTes
 			return partFluxDescription(parts);
 		}
 
+		@PostMapping("/filePartFlux")
+		Mono<String> filePartsFlux(@RequestPart("fileParts") Flux<FilePart> parts) {
+			return partFluxDescription(parts);
+		}
+
+		@PostMapping("/filePartMono")
+		Mono<String> filePartsFlux(@RequestPart("fileParts") Mono<FilePart> parts) {
+			return partFluxDescription(Flux.from(parts));
+		}
+
 		@PostMapping("/modelAttribute")
 		String modelAttribute(@ModelAttribute FormBean formBean) {
 			return formBean.toString();