Add Jackson 2 smoke tests

See gh-47688

Co-authored-by: Andy Wilkinson <andy.wilkinson@broadcom.com>

settings.gradle

@@ -414,6 +414,8 @@ include ":smoke-test:spring-boot-smoke-test-graphql"
 include ":smoke-test:spring-boot-smoke-test-hateoas"
 include ":smoke-test:spring-boot-smoke-test-hibernate"
 include ":smoke-test:spring-boot-smoke-test-integration"
+include ":smoke-test:spring-boot-smoke-test-jackson2-mixed"
+include ":smoke-test:spring-boot-smoke-test-jackson2-only"
 include ":smoke-test:spring-boot-smoke-test-jetty"
 include ":smoke-test:spring-boot-smoke-test-jetty-jsp"
 include ":smoke-test:spring-boot-smoke-test-jetty-ssl"

smoke-test/spring-boot-smoke-test-jackson2-mixed/build.gradle

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2012-present 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.
+ */
+
+plugins {
+	id "java"
+}
+
+description = "Spring Boot Jackson 2 mixed with Jackson 3 smoke test"
+
+dependencies {
+	implementation(project(":module:spring-boot-jackson2"))
+	implementation(project(":starter:spring-boot-starter-actuator"))
+	implementation(project(":starter:spring-boot-starter-webmvc"))
+
+	testImplementation(project(":starter:spring-boot-starter-test"))
+	testImplementation(project(":starter:spring-boot-starter-webmvc-test"))
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/java/smoketest/jackson2/mixed/Name.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+public record Name(String first, String last) {
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/java/smoketest/jackson2/mixed/NamesEndpoint.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import java.util.List;
+
+import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
+import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
+import org.springframework.stereotype.Component;
+
+/**
+ * Names endpoint.
+ *
+ * @author Andy Wilkinson
+ */
+@Component
+@Endpoint(id = "names")
+public class NamesEndpoint {
+
+	@ReadOperation
+	List<Name> names() {
+		return List.of(new Name("Spring", "Boot"));
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/java/smoketest/jackson2/mixed/SampleController.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import java.util.List;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class SampleController {
+
+	@GetMapping("/names")
+	List<Name> names() {
+		return List.of(new Name("Spring", "Boot"));
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/java/smoketest/jackson2/mixed/SampleJackson2MixedApplication.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SampleJackson2MixedApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SampleJackson2MixedApplication.class, args);
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/java/smoketest/jackson2/mixed/SampleJacksonComponent.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import tools.jackson.core.JacksonException;
+import tools.jackson.core.JsonGenerator;
+import tools.jackson.databind.SerializationContext;
+import tools.jackson.databind.ValueSerializer;
+
+import org.springframework.boot.jackson.JacksonComponent;
+
+@JacksonComponent
+public class SampleJacksonComponent {
+
+	public static class Serializer extends ValueSerializer<Name> {
+
+		@Override
+		public void serialize(Name value, JsonGenerator gen, SerializationContext ctxt) throws JacksonException {
+			gen.writeString("JACKSON:%s:%s".formatted(value.first(), value.last()));
+		}
+
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/java/smoketest/jackson2/mixed/SampleJsonComponent.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import java.io.IOException;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.SerializerProvider;
+
+import org.springframework.boot.jackson2.JsonComponent;
+
+@JsonComponent
+@SuppressWarnings("removal")
+public class SampleJsonComponent {
+
+	public static class Serializer extends JsonSerializer<Name> {
+
+		@Override
+		public void serialize(Name value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
+			gen.writeString("JACKSON2:%s:%s".formatted(value.first(), value.last()));
+		}
+
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/java/smoketest/jackson2/mixed/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2012-present 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.
+ */
+
+@NullMarked
+package smoketest.jackson2.mixed;
+
+import org.jspecify.annotations.NullMarked;

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/main/resources/application.properties

@@ -0,0 +1,2 @@
+management.endpoints.web.exposure.include=*
+spring.http.converters.preferred-json-mapper=jackson2

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/test/java/smoketest/jackson2/mixed/MixedJacksonPresenceTests.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.util.ClassUtils;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for the presence of mixed versions of Jackson.
+ *
+ * @author Andy Wilkinson
+ */
+class MixedJacksonPresenceTests {
+
+	@Test
+	void jackson2IsPresent() {
+		assertThat(ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", null)).isTrue();
+	}
+
+	@Test
+	void jackson3IsPresent() {
+		assertThat(ClassUtils.isPresent("tools.jackson.databind.ObjectMapper", null)).isTrue();
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/test/java/smoketest/jackson2/mixed/SampleJackson2MixedApplicationTests.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureRestTestClient;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.test.web.servlet.client.RestTestClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SampleJackson2MixedApplication}.
+ *
+ * @author Andy Wilkinson
+ */
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+@AutoConfigureRestTestClient
+class SampleJackson2MixedApplicationTests {
+
+	@Autowired
+	RestTestClient rest;
+
+	@Test
+	void jackson2IsUsedForHttpMessageConversion() {
+		this.rest.get().uri("/names").exchange().expectBody().json("[\"JACKSON2:Spring:Boot\"]");
+	}
+
+	@Test
+	void jackson2IsUsedForActuatorEndpoints() {
+		this.rest.get().uri("/actuator/names").exchange().expectBody().json("[\"JACKSON2:Spring:Boot\"]");
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void configPropsShouldReturnOk() {
+		this.rest.get()
+			.uri("/actuator/configprops")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody(Map.class)
+			.value((body) -> assertThat(body).containsOnlyKeys("contexts"));
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void actuatorLinksShouldReturnOk() {
+		this.rest.get()
+			.uri("/actuator")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody(Map.class)
+			.value((body) -> assertThat(body).containsOnlyKeys("_links"));
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-mixed/src/test/java/smoketest/jackson2/mixed/SampleJackson2MixedApplicationWithJackson3PreferredTests.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.mixed;
+
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureRestTestClient;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.test.web.servlet.client.RestTestClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SampleJackson2MixedApplication} when Jackson 3 is preferred.
+ *
+ * @author Andy Wilkinson
+ */
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT,
+		properties = "spring.http.converters.preferred-json-mapper=jackson")
+@AutoConfigureRestTestClient
+class SampleJackson2MixedApplicationWithJackson3PreferredTests {
+
+	@Autowired
+	RestTestClient rest;
+
+	@Test
+	void jacksonIsUsedForHttpMessageConversion() {
+		this.rest.get().uri("/names").exchange().expectBody().json("[\"JACKSON:Spring:Boot\"]");
+	}
+
+	@Test
+	void jacksonIsUsedForActuatorEndpoints() {
+		this.rest.get().uri("/actuator/names").exchange().expectBody().json("[\"JACKSON:Spring:Boot\"]");
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void configPropsShouldReturnOk() {
+		this.rest.get()
+			.uri("/actuator/configprops")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody(Map.class)
+			.value((body) -> assertThat(body).containsOnlyKeys("contexts"));
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void actuatorLinksShouldReturnOk() {
+		this.rest.get()
+			.uri("/actuator")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody(Map.class)
+			.value((body) -> assertThat(body).containsOnlyKeys("_links"));
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-only/build.gradle

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012-present 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.
+ */
+
+plugins {
+	id "java"
+}
+
+description = "Spring Boot Jackson 2 without Jackson 3 smoke test"
+
+dependencies {
+	implementation(project(":module:spring-boot-jackson2"))
+	implementation(project(":starter:spring-boot-starter-actuator"))
+	implementation(project(":starter:spring-boot-starter-webmvc")) {
+		exclude module: 'spring-boot-starter-jackson'
+	}
+
+	testImplementation(project(":starter:spring-boot-starter-test"))
+	testImplementation(project(":starter:spring-boot-starter-webmvc-test")) {
+		exclude module: 'spring-boot-starter-jackson'
+	}
+}

smoke-test/spring-boot-smoke-test-jackson2-only/src/main/java/smoketest/jackson2/only/SampleJackson2OnlyApplication.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.only;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SampleJackson2OnlyApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SampleJackson2OnlyApplication.class, args);
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-only/src/main/java/smoketest/jackson2/only/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2012-present 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.
+ */
+
+@NullMarked
+package smoketest.jackson2.only;
+
+import org.jspecify.annotations.NullMarked;

smoke-test/spring-boot-smoke-test-jackson2-only/src/main/resources/application.properties

@@ -0,0 +1 @@
+management.endpoints.web.exposure.include=*

smoke-test/spring-boot-smoke-test-jackson2-only/src/test/java/smoketest/jackson2/only/OnlyJackson2PresenceTests.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.only;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.util.ClassUtils;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for the presence of mixed versions of Jackson.
+ *
+ * @author Andy Wilkinson
+ */
+class OnlyJackson2PresenceTests {
+
+	@Test
+	void jackson2IsPresent() {
+		assertThat(ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", null)).isTrue();
+	}
+
+	@Test
+	void jackson3IsNotPresent() {
+		assertThat(ClassUtils.isPresent("tools.jackson.databind.ObjectMapper", null)).isFalse();
+	}
+
+}

smoke-test/spring-boot-smoke-test-jackson2-only/src/test/java/smoketest/jackson2/only/SampleJackson2OnlyApplicationTests.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2012-present 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 smoketest.jackson2.only;
+
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureRestTestClient;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.test.web.servlet.client.RestTestClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for Actuator running in {@link SampleJackson2OnlyApplication}.
+ *
+ * @author Andy Wilkinson
+ */
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+@AutoConfigureRestTestClient
+class SampleJackson2OnlyApplicationTests {
+
+	@Autowired
+	RestTestClient rest;
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void configPropsShouldReturnOk() {
+		this.rest.get()
+			.uri("/actuator/configprops")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody(Map.class)
+			.value((body) -> assertThat(body).containsOnlyKeys("contexts"));
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	void actuatorLinksShouldReturnOk() {
+		this.rest.get()
+			.uri("/actuator")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody(Map.class)
+			.value((body) -> assertThat(body).containsOnlyKeys("_links"));
+	}
+
+}