diff --git a/spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/client/AutoConfigureMockRestServiceServerWithRootUriIntegrationTests.java b/spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/client/AutoConfigureMockRestServiceServerWithRootUriIntegrationTests.java
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index 0000000000..67c98a959e
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+++ b/spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/client/AutoConfigureMockRestServiceServerWithRootUriIntegrationTests.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2012-2021 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.test.autoconfigure.web.client;
+
+import io.micrometer.core.instrument.MeterRegistry;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.web.client.MockRestServiceServer;
+import org.springframework.web.client.RestTemplate;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
+import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
+
+/**
+ * Tests for
+ * {@link AutoConfigureMockRestServiceServer @AutoConfigureMockRestServiceServer} with a
+ * {@link RestTemplate} configured with a root URI.
+ *
+ * @author Andy Wilkinson
+ */
+@SpringBootTest(properties = "debug=true")
+@AutoConfigureMockRestServiceServer
+class AutoConfigureMockRestServiceServerWithRootUriIntegrationTests {
+
+	@Autowired
+	private RestTemplate restTemplate;
+
+	@Autowired
+	private MockRestServiceServer server;
+
+	@Autowired
+	MeterRegistry meterRegistry;
+
+	@Test
+	void whenRestTemplateAppliesARootUriThenMockServerExpecationsAreStillMatched() {
+		this.server.expect(requestTo("/test")).andRespond(withSuccess("hello", MediaType.TEXT_HTML));
+		ResponseEntity<String> entity = this.restTemplate.getForEntity("/test", String.class);
+		assertThat(entity.getBody()).isEqualTo("hello");
+		assertThat(this.meterRegistry.find("http.client.requests").tag("uri", "/rest/test").timer()).isNotNull();
+	}
+
+	@EnableAutoConfiguration(exclude = CassandraAutoConfiguration.class)
+	@Configuration(proxyBeanMethods = false)
+	static class RootUriConfiguration {
+
+		@Bean
+		RestTemplate restTemplate(RestTemplateBuilder restTemplateBuilder) {
+			return restTemplateBuilder.rootUri("/rest").build();
+		}
+
+	}
+
+}