Add JSON serialization scenario

Part of test development to QUARKUS-1075.
Covers one of the advanced topics of the test plan.
https://github.com/quarkus-qe/quarkus-test-plans/blob/main/QUARKUS-1075.md

README.md

@@ -155,6 +155,7 @@ RESTEasy Reactive equivalent of `http/jaxrs`. Tests simple and multipart endpoin
 Additional coverage:
 - Execution model (blocking vs. non-blocking) of endpoints based on method signature.
 - HTTP Caching features.
+- Advanced JSON serialization.
 
 ### `http/rest-client`
 Verifies Rest Client configuration using `quarkus-rest-client-jaxb` (XML support) and `quarkus-rest-client-jsonb` (JSON support).

http/jaxrs-reactive/pom.xml

@@ -13,7 +13,7 @@
     <dependencies>
         <dependency>
             <groupId>io.quarkus</groupId>
-            <artifactId>quarkus-resteasy-reactive</artifactId>
+            <artifactId>quarkus-resteasy-reactive-jackson</artifactId>
         </dependency>
         <dependency>
             <groupId>commons-io</groupId>

http/jaxrs-reactive/src/main/java/io/quarkus/ts/jaxrs/reactive/json/JsonResource.java

@@ -0,0 +1,42 @@
+package io.quarkus.ts.jaxrs.reactive.json;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+import io.quarkus.resteasy.reactive.jackson.CustomSerialization;
+
+@Path("/json")
+public class JsonResource {
+    public static final Integer USER_ID = 1;
+    public static final String USER_NAME = "testUser";
+
+    @JsonView(Views.Public.class)
+    @GET
+    @Path("/public")
+    public User userPublic() {
+        return testUser();
+    }
+
+    @JsonView(Views.Private.class)
+    @GET
+    @Path("/private")
+    public User userPrivate() {
+        return testUser();
+    }
+
+    @CustomSerialization(UnquotedFields.class)
+    @GET
+    @Path("/custom")
+    public User userCustom() {
+        return testUser();
+    }
+
+    private User testUser() {
+        User user = new User();
+        user.id = USER_ID;
+        user.name = USER_NAME;
+        return user;
+    }
+}

http/jaxrs-reactive/src/main/java/io/quarkus/ts/jaxrs/reactive/json/UnquotedFields.java

@@ -0,0 +1,18 @@
+package io.quarkus.ts.jaxrs.reactive.json;
+
+import java.lang.reflect.Type;
+import java.util.function.BiFunction;
+
+import com.fasterxml.jackson.core.json.JsonWriteFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectWriter;
+
+import io.quarkus.runtime.annotations.RegisterForReflection;
+
+@RegisterForReflection
+public class UnquotedFields implements BiFunction<ObjectMapper, Type, ObjectWriter> {
+    @Override
+    public ObjectWriter apply(ObjectMapper objectMapper, Type type) {
+        return objectMapper.writer().without(JsonWriteFeature.QUOTE_FIELD_NAMES);
+    }
+}

http/jaxrs-reactive/src/main/java/io/quarkus/ts/jaxrs/reactive/json/User.java

@@ -0,0 +1,12 @@
+package io.quarkus.ts.jaxrs.reactive.json;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+public class User {
+
+    @JsonView(Views.Private.class)
+    public Integer id;
+
+    @JsonView(Views.Public.class)
+    public String name;
+}

http/jaxrs-reactive/src/main/java/io/quarkus/ts/jaxrs/reactive/json/Views.java

@@ -0,0 +1,10 @@
+package io.quarkus.ts.jaxrs.reactive.json;
+
+public class Views {
+
+    public static class Public {
+    }
+
+    public static class Private extends Public {
+    }
+}

http/jaxrs-reactive/src/test/java/io/quarkus/ts/jaxrs/reactive/json/JsonResourceIT.java

@@ -0,0 +1,54 @@
+package io.quarkus.ts.jaxrs.reactive.json;
+
+import static io.restassured.RestAssured.given;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+import org.apache.http.HttpStatus;
+import org.junit.jupiter.api.Tag;
+import org.junit.jupiter.api.Test;
+
+import io.quarkus.test.scenarios.QuarkusScenario;
+import io.restassured.http.ContentType;
+import io.restassured.response.ValidatableResponse;
+
+@Tag("QUARKUS-1075")
+@QuarkusScenario
+public class JsonResourceIT {
+    private static final String BASE_PATH = "/json";
+    private static final String CUSTOM_JSON = String.format("{id:%d,name:\"%s\"}", JsonResource.USER_ID,
+            JsonResource.USER_NAME);
+
+    @Test
+    public void shouldGetUserPublic() {
+        final User user = getUser("/public");
+        assertNull(user.id);
+    }
+
+    @Test
+    public void shouldGetUserPrivate() {
+        final User user = getUser("/private");
+        assertNotNull(user.id);
+    }
+
+    @Test
+    public void shouldGetCustomJson() {
+        final String stringBody = whenGet("/custom").extract().body().asString();
+        assertEquals(CUSTOM_JSON, stringBody);
+    }
+
+    private User getUser(String path) {
+        final User user = whenGet(path).extract().body().as(User.class);
+        assertNotNull(user.name);
+        return user;
+    }
+
+    private ValidatableResponse whenGet(String path) {
+        return given()
+                .get(BASE_PATH + path)
+                .then()
+                .statusCode(HttpStatus.SC_OK)
+                .contentType(ContentType.JSON);
+    }
+}

http/jaxrs-reactive/src/test/java/io/quarkus/ts/jaxrs/reactive/json/OpenShiftJsonResourceIT.java

@@ -0,0 +1,7 @@
+package io.quarkus.ts.jaxrs.reactive.json;
+
+import io.quarkus.test.scenarios.OpenShiftScenario;
+
+@OpenShiftScenario
+public class OpenShiftJsonResourceIT extends JsonResourceIT {
+}