/*
* 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.web.reactive.function.server;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicBoolean;
import org.junit.Test;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.HttpHandler;
import org.springframework.mock.http.server.reactive.test.MockServerHttpRequest;
import org.springframework.mock.http.server.reactive.test.MockServerHttpResponse;
import org.springframework.web.server.ResponseStatusException;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
/**
* @author Arjen Poutsma
* @since 5.0
*/
@SuppressWarnings("unchecked")
public class RouterFunctionsTests {
@Test
public void routeMatch() throws Exception {
HandlerFunction<ServerResponse> handlerFunction = request -> ServerResponse.ok().build();
MockServerRequest request = MockServerRequest.builder().build();
RequestPredicate requestPredicate = mock(RequestPredicate.class);
when(requestPredicate.test(request)).thenReturn(true);
RouterFunction<ServerResponse>
result = RouterFunctions.route(requestPredicate, handlerFunction);
assertNotNull(result);
Mono<HandlerFunction<ServerResponse>> resultHandlerFunction = result.route(request);
StepVerifier.create(resultHandlerFunction)
.expectNext(handlerFunction)
.expectComplete()
.verify();
}
@Test
public void routeNoMatch() throws Exception {
HandlerFunction<ServerResponse> handlerFunction = request -> ServerResponse.ok().build();
MockServerRequest request = MockServerRequest.builder().build();
RequestPredicate requestPredicate = mock(RequestPredicate.class);
when(requestPredicate.test(request)).thenReturn(false);
RouterFunction<ServerResponse> result = RouterFunctions.route(requestPredicate, handlerFunction);
assertNotNull(result);
Mono<HandlerFunction<ServerResponse>> resultHandlerFunction = result.route(request);
StepVerifier.create(resultHandlerFunction)
.expectComplete()
.verify();
}
@Test
public void nestMatch() throws Exception {
HandlerFunction<ServerResponse> handlerFunction = request -> ServerResponse.ok().build();
RouterFunction<ServerResponse> routerFunction = request -> Mono.just(handlerFunction);
MockServerRequest request = MockServerRequest.builder().build();
RequestPredicate requestPredicate = mock(RequestPredicate.class);
when(requestPredicate.nest(request)).thenReturn(Optional.of(request));
RouterFunction<ServerResponse> result = RouterFunctions.nest(requestPredicate, routerFunction);
assertNotNull(result);
Mono<HandlerFunction<ServerResponse>> resultHandlerFunction = result.route(request);
StepVerifier.create(resultHandlerFunction)
.expectNext(handlerFunction)
.expectComplete()
.verify();
}
@Test
public void nestNoMatch() throws Exception {
HandlerFunction<ServerResponse> handlerFunction = request -> ServerResponse.ok().build();
RouterFunction<ServerResponse> routerFunction = request -> Mono.just(handlerFunction);
MockServerRequest request = MockServerRequest.builder().build();
RequestPredicate requestPredicate = mock(RequestPredicate.class);
when(requestPredicate.nest(request)).thenReturn(Optional.empty());
RouterFunction<ServerResponse> result = RouterFunctions.nest(requestPredicate, routerFunction);
assertNotNull(result);
Mono<HandlerFunction<ServerResponse>> resultHandlerFunction = result.route(request);
StepVerifier.create(resultHandlerFunction)
.expectComplete()
.verify();
}
@Test
public void toHttpHandlerNormal() throws Exception {
HandlerFunction<ServerResponse> handlerFunction = request -> ServerResponse.accepted().build();
RouterFunction<ServerResponse> routerFunction =
RouterFunctions.route(RequestPredicates.all(), handlerFunction);
HttpHandler result = RouterFunctions.toHttpHandler(routerFunction);
assertNotNull(result);
MockServerHttpRequest httpRequest = MockServerHttpRequest.get("http://localhost").build();
MockServerHttpResponse httpResponse = new MockServerHttpResponse();
result.handle(httpRequest, httpResponse).block();
assertEquals(HttpStatus.ACCEPTED, httpResponse.getStatusCode());
}
@Test
public void toHttpHandlerHandlerThrowsException() throws Exception {
HandlerFunction<ServerResponse> handlerFunction =
request -> {
throw new IllegalStateException();
};
RouterFunction<ServerResponse> routerFunction =
RouterFunctions.route(RequestPredicates.all(), handlerFunction);
HttpHandler result = RouterFunctions.toHttpHandler(routerFunction);
assertNotNull(result);
MockServerHttpRequest httpRequest = MockServerHttpRequest.get("http://localhost").build();
MockServerHttpResponse httpResponse = new MockServerHttpResponse();
result.handle(httpRequest, httpResponse).block();
assertEquals(HttpStatus.INTERNAL_SERVER_ERROR, httpResponse.getStatusCode());
}
@Test
public void toHttpHandlerHandlerReturnsException() throws Exception {
HandlerFunction<ServerResponse> handlerFunction =
request -> Mono.error(new IllegalStateException());
RouterFunction<ServerResponse> routerFunction =
RouterFunctions.route(RequestPredicates.all(), handlerFunction);
HttpHandler result = RouterFunctions.toHttpHandler(routerFunction);
assertNotNull(result);
MockServerHttpRequest httpRequest = MockServerHttpRequest.get("http://localhost").build();
MockServerHttpResponse httpResponse = new MockServerHttpResponse();
result.handle(httpRequest, httpResponse).block();
assertEquals(HttpStatus.INTERNAL_SERVER_ERROR, httpResponse.getStatusCode());
}
@Test
public void toHttpHandlerHandlerResponseStatusException() throws Exception {
HandlerFunction<ServerResponse> handlerFunction =
request -> Mono.error(new ResponseStatusException(HttpStatus.NOT_FOUND, "Not found"));
RouterFunction<ServerResponse> routerFunction =
RouterFunctions.route(RequestPredicates.all(), handlerFunction);
HttpHandler result = RouterFunctions.toHttpHandler(routerFunction);
assertNotNull(result);
MockServerHttpRequest httpRequest = MockServerHttpRequest.get("http://localhost").build();
MockServerHttpResponse httpResponse = new MockServerHttpResponse();
result.handle(httpRequest, httpResponse).block();
assertEquals(HttpStatus.NOT_FOUND, httpResponse.getStatusCode());
}
@Test
public void toHttpHandlerHandlerReturnResponseStatusExceptionInResponseWriteTo() throws Exception {
HandlerFunction<ServerResponse> handlerFunction =
// Mono.<ServerResponse> is required for compilation in Eclipse
request -> Mono.<ServerResponse> just(new ServerResponse() {
@Override
public HttpStatus statusCode() {
return HttpStatus.OK;
}
@Override
public HttpHeaders headers() {
return new HttpHeaders();
}
@Override
public Mono<Void> writeTo(ServerWebExchange exchange,
HandlerStrategies strategies) {
return Mono.error(new ResponseStatusException(HttpStatus.NOT_FOUND, "Not found"));
}
});
RouterFunction<ServerResponse> routerFunction =
RouterFunctions.route(RequestPredicates.all(), handlerFunction);
HttpHandler result = RouterFunctions.toHttpHandler(routerFunction);
assertNotNull(result);
MockServerHttpRequest httpRequest = MockServerHttpRequest.get("http://localhost").build();
MockServerHttpResponse httpResponse = new MockServerHttpResponse();
result.handle(httpRequest, httpResponse).block();
assertEquals(HttpStatus.NOT_FOUND, httpResponse.getStatusCode());
}
@Test
public void toHttpHandlerHandlerThrowResponseStatusExceptionInResponseWriteTo() throws Exception {
HandlerFunction<ServerResponse> handlerFunction =
// Mono.<ServerResponse> is required for compilation in Eclipse
request -> Mono.<ServerResponse> just(new ServerResponse() {
@Override
public HttpStatus statusCode() {
return HttpStatus.OK;
}
@Override
public HttpHeaders headers() {
return new HttpHeaders();
}
@Override
public Mono<Void> writeTo(ServerWebExchange exchange,
HandlerStrategies strategies) {
throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Not found");
}
});
RouterFunction<ServerResponse> routerFunction =
RouterFunctions.route(RequestPredicates.all(), handlerFunction);
HttpHandler result = RouterFunctions.toHttpHandler(routerFunction);
assertNotNull(result);
MockServerHttpRequest httpRequest = MockServerHttpRequest.get("http://localhost").build();
MockServerHttpResponse httpResponse = new MockServerHttpResponse();
result.handle(httpRequest, httpResponse).block();
assertEquals(HttpStatus.NOT_FOUND, httpResponse.getStatusCode());
}
@Test
public void toHttpHandlerWebFilter() throws Exception {
AtomicBoolean filterInvoked = new AtomicBoolean();
WebFilter webFilter = new WebFilter() {
@Override
public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
filterInvoked.set(true);
return chain.filter(exchange);
}
};
HandlerFunction<ServerResponse> handlerFunction = request -> ServerResponse.accepted().build();
RouterFunction<ServerResponse> routerFunction =
RouterFunctions.route(RequestPredicates.all(), handlerFunction);
HandlerStrategies handlerStrategies = HandlerStrategies.builder()
.webFilter(webFilter).build();
HttpHandler result = RouterFunctions.toHttpHandler(routerFunction, handlerStrategies);
assertNotNull(result);
MockServerHttpRequest httpRequest = MockServerHttpRequest.get("http://localhost").build();
MockServerHttpResponse httpResponse = new MockServerHttpResponse();
result.handle(httpRequest, httpResponse).block();
assertEquals(HttpStatus.ACCEPTED, httpResponse.getStatusCode());
assertTrue(filterInvoked.get());
}
}