diff --git a/spring-cloud-function-samples/function-sample-pojo/src/test/java/com/example/SampleApplicationMvcTests.java b/spring-cloud-function-samples/function-sample-pojo/src/test/java/com/example/SampleApplicationMvcTests.java
index a6f802e23..dd19815b3 100644
--- a/spring-cloud-function-samples/function-sample-pojo/src/test/java/com/example/SampleApplicationMvcTests.java
+++ b/spring-cloud-function-samples/function-sample-pojo/src/test/java/com/example/SampleApplicationMvcTests.java
@@ -51,4 +51,13 @@ public void words() throws Exception {
 			.isEqualTo("[{\"value\":\"foo\"},{\"value\":\"bar\"}]");
 	}
 
+	@Test
+	public void wordsUpperCase() throws Exception {
+		ResponseEntity<String> result = this.rest
+			.exchange(RequestEntity.get(new URI("/words|upperCase"))
+				.accept(MediaType.APPLICATION_JSON).build(), String.class);
+		assertThat(result.getBody())
+			.isEqualTo("[{\"value\":\"FOO\"},{\"value\":\"BAR\"}]");
+	}
+
 }