tck: HealthResult serialization (#10624)

* tck: HealthResult serialization

This pull request adds the HealthResult serialization test introduced in #10526 as a TCK test.

* Unused imports and whitespace

* Try to fix the build... Switching base seems to have broken things

---------

Co-authored-by: Tim Yates <tim.yates@gmail.com>

http-server-tck/src/main/java/io/micronaut/http/server/tck/tests/endpoints/health/HealthResultTest.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2017-2024 original 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 io.micronaut.http.server.tck.tests.endpoints.health;
+
+import io.micronaut.context.annotation.Requires;
+import io.micronaut.health.HealthStatus;
+import io.micronaut.http.HttpRequest;
+import io.micronaut.http.HttpStatus;
+import io.micronaut.http.annotation.Controller;
+import io.micronaut.http.annotation.Get;
+import io.micronaut.http.tck.AssertionUtils;
+import io.micronaut.http.tck.HttpResponseAssertion;
+import io.micronaut.json.JsonMapper;
+import io.micronaut.management.health.indicator.HealthResult;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.util.Collections;
+
+import static io.micronaut.http.tck.TestScenario.asserts;
+
+@SuppressWarnings({
+    "java:S5960", // We're allowed assertions, as these are used in tests only
+    "checkstyle:MissingJavadocType",
+    "checkstyle:DesignForExtension"
+})
+public class HealthResultTest {
+
+    private static final String SPEC_NAME = "HealthResultTest";
+
+    /**
+     * This test verifies the available JSON Mapper is able to serialize a {@link HealthResult}.
+     *
+     * @throws IOException Exception thrown while getting the server under test.
+     */
+    @Test
+    public void healthResultSerialization() throws IOException {
+        // standard header name with mixed case
+        asserts(SPEC_NAME,
+            HttpRequest.GET("/healthresult"),
+            (server, request) -> AssertionUtils.assertDoesNotThrow(server, request, HttpResponseAssertion.builder()
+                .status(HttpStatus.OK)
+                .body("{\"name\":\"db\",\"status\":\"DOWN\",\"details\":{\"foo\":\"bar\"}}")
+                .build()));
+    }
+
+    @Controller("/healthresult")
+    @Requires(property = "spec.name", value = SPEC_NAME)
+    public static class QuestionController {
+        private final JsonMapper jsonMapper;
+
+        public QuestionController(JsonMapper jsonMapper) {
+            this.jsonMapper = jsonMapper;
+        }
+
+        @Get
+        String index() throws IOException {
+            return jsonMapper.writeValueAsString(HealthResult.builder("db", HealthStatus.DOWN)
+                .details(Collections.singletonMap("foo", "bar"))
+                .build());
+        }
+    }
+}