Restore support for REST Assured

Closes gh-784

docs/src/test/java/com/example/restassured/RequestParameters.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2014-2021 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 com.example.restassured;
+
+import io.restassured.RestAssured;
+import io.restassured.specification.RequestSpecification;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.springframework.restdocs.request.RequestDocumentation.parameterWithName;
+import static org.springframework.restdocs.request.RequestDocumentation.requestParameters;
+import static org.springframework.restdocs.restassured.RestAssuredRestDocumentation.document;
+
+public class RequestParameters {
+
+	private RequestSpecification spec;
+
+	public void getQueryStringSnippet() throws Exception {
+		// tag::request-parameters-query-string[]
+		RestAssured.given(this.spec).filter(document("users", requestParameters(// <1>
+				parameterWithName("page").description("The page to retrieve"), // <2>
+				parameterWithName("per_page").description("Entries per page")))) // <3>
+				.when().get("/users?page=2&per_page=100") // <4>
+				.then().assertThat().statusCode(is(200));
+		// end::request-parameters-query-string[]
+	}
+
+	public void postFormDataSnippet() throws Exception {
+		// tag::request-parameters-form-data[]
+		RestAssured.given(this.spec)
+				.filter(document("create-user",
+						requestParameters(parameterWithName("username").description("The user's username"))))
+				.formParam("username", "Tester") // <1>
+				.when().post("/users") // <2>
+				.then().assertThat().statusCode(is(200));
+		// end::request-parameters-form-data[]
+	}
+
+}