JSON content and JsonPath support for WebTestClient

Issue: SPR-15420

spring-test/src/test/java/org/springframework/test/web/reactive/server/samples/JsonContentTests.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2002-2017 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
+ *
+ *      http://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.test.web.reactive.server.samples;
+
+import org.junit.Test;
+import reactor.core.publisher.Flux;
+
+import org.springframework.http.MediaType;
+import org.springframework.test.web.reactive.server.WebTestClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * Sample tests asserting JSON response content.
+ *
+ * @author Rossen Stoyanchev
+ */
+public class JsonContentTests {
+
+	private final WebTestClient client = WebTestClient.bindToController(new PersonController()).build();
+
+
+	@Test
+	public void jsonContent() throws Exception {
+		this.client.get().uri("/persons")
+				.accept(MediaType.APPLICATION_JSON_UTF8)
+				.exchange()
+				.expectStatus().isOk()
+				.expectBody().json("[{\"name\":\"Jane\"},{\"name\":\"Jason\"},{\"name\":\"John\"}]");
+	}
+
+	@Test
+	public void jsonPathIsEqualTo() throws Exception {
+		this.client.get().uri("/persons")
+				.accept(MediaType.APPLICATION_JSON_UTF8)
+				.exchange()
+				.expectStatus().isOk()
+				.expectBody()
+				.jsonPath("$[0].name").isEqualTo("Jane")
+				.jsonPath("$[1].name").isEqualTo("Jason")
+				.jsonPath("$[2].name").isEqualTo("John");
+	}
+
+
+	@RestController
+	@SuppressWarnings("unused")
+	static class PersonController {
+
+		@GetMapping("/persons")
+		Flux<Person> getPersons() {
+			return Flux.just(new Person("Jane"), new Person("Jason"), new Person("John"));
+		}
+	}
+
+}

spring-test/src/test/java/org/springframework/test/web/reactive/server/samples/Person.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2002-2017 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
+ *
+ *      http://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.test.web.reactive.server.samples;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+class Person {
+
+	private final String name;
+
+	@JsonCreator
+	public Person(@JsonProperty("name") String name) {
+		this.name = name;
+	}
+
+	public String getName() {
+		return this.name;
+	}
+
+	@Override
+	public boolean equals(Object other) {
+		if (this == other) return true;
+		if (other == null || getClass() != other.getClass()) return false;
+		Person person = (Person) other;
+		return getName().equals(person.getName());
+	}
+
+	@Override
+	public int hashCode() {
+		return getName().hashCode();
+	}
+
+	@Override
+	public String toString() {
+		return "Person[name='" + name + "']";
+	}
+
+}

spring-test/src/test/java/org/springframework/test/web/reactive/server/samples/ResponseEntityTests.java

@@ -22,8 +22,6 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
@@ -169,36 +167,4 @@ public class ResponseEntityTests {
 		}
 	}
 
-	static class Person {
-
-		private final String name;
-
-		@JsonCreator
-		public Person(@JsonProperty("name") String name) {
-			this.name = name;
-		}
-
-		public String getName() {
-			return this.name;
-		}
-
-		@Override
-		public boolean equals(Object other) {
-			if (this == other) return true;
-			if (other == null || getClass() != other.getClass()) return false;
-			Person person = (Person) other;
-			return getName().equals(person.getName());
-		}
-
-		@Override
-		public int hashCode() {
-			return getName().hashCode();
-		}
-
-		@Override
-		public String toString() {
-			return "Person[name='" + name + "']";
-		}
-	}
-
 }