/*
* Copyright 2002-2016 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.result.method.annotation;
import java.lang.reflect.Method;
import java.net.URI;
import org.junit.Before;
import org.junit.Test;
import reactor.core.publisher.Mono;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.core.MethodParameter;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.support.GenericConversionService;
import org.springframework.http.HttpMethod;
import org.springframework.http.server.reactive.MockServerHttpRequest;
import org.springframework.http.server.reactive.MockServerHttpResponse;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.adapter.DefaultServerWebExchange;
import org.springframework.web.server.session.MockWebSessionManager;
import org.springframework.web.server.session.WebSessionManager;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Unit tests for {@link ExpressionValueMethodArgumentResolver}.
*
* @author Rossen Stoyanchev
*/
public class ExpressionValueMethodArgumentResolverTests {
private ExpressionValueMethodArgumentResolver resolver;
private ServerWebExchange exchange;
private MethodParameter paramSystemProperty;
private MethodParameter paramNotSupported;
@Before
public void setUp() throws Exception {
ConversionService conversionService = new GenericConversionService();
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
context.refresh();
this.resolver = new ExpressionValueMethodArgumentResolver(conversionService, context.getBeanFactory());
ServerHttpRequest request = new MockServerHttpRequest(HttpMethod.GET, new URI("/"));
WebSessionManager sessionManager = new MockWebSessionManager();
this.exchange = new DefaultServerWebExchange(request, new MockServerHttpResponse(), sessionManager);
Method method = getClass().getMethod("params", int.class, String.class);
this.paramSystemProperty = new MethodParameter(method, 0);
this.paramNotSupported = new MethodParameter(method, 1);
}
@Test
public void supportsParameter() throws Exception {
assertTrue(this.resolver.supportsParameter(this.paramSystemProperty));
assertFalse(this.resolver.supportsParameter(this.paramNotSupported));
}
@Test
public void resolveSystemProperty() throws Exception {
System.setProperty("systemProperty", "22");
try {
Mono<Object> mono = this.resolver.resolveArgument(this.paramSystemProperty, null, this.exchange);
Object value = mono.block();
assertEquals(22, value);
}
finally {
System.clearProperty("systemProperty");
}
}
// TODO: test with expression for ServerWebExchange
@SuppressWarnings("unused")
public void params(@Value("#{systemProperties.systemProperty}") int param1,
String notSupported) {
}
}