/*
* 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.result.method.annotation;
import java.lang.reflect.Method;
import java.time.Instant;
import java.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.core.MethodParameter;
import org.springframework.core.ReactiveAdapterRegistry;
import org.springframework.core.annotation.SynthesizingMethodParameter;
import org.springframework.format.support.DefaultFormattingConversionService;
import org.springframework.mock.http.server.reactive.test.MockServerHttpRequest;
import org.springframework.mock.http.server.reactive.test.MockServerWebExchange;
import org.springframework.util.ReflectionUtils;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.support.ConfigurableWebBindingInitializer;
import org.springframework.web.reactive.BindingContext;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.ServerWebInputException;
import static org.junit.Assert.*;
/**
* Unit tests for {@link RequestHeaderMethodArgumentResolver}.
*
* @author Rossen Stoyanchev
*/
public class RequestHeaderMethodArgumentResolverTests {
private RequestHeaderMethodArgumentResolver resolver;
private BindingContext bindingContext;
private MethodParameter paramNamedDefaultValueStringHeader;
private MethodParameter paramNamedValueStringArray;
private MethodParameter paramSystemProperty;
private MethodParameter paramResolvedNameWithExpression;
private MethodParameter paramResolvedNameWithPlaceholder;
private MethodParameter paramNamedValueMap;
private MethodParameter paramDate;
private MethodParameter paramInstant;
private MethodParameter paramMono;
@Before
public void setup() throws Exception {
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
context.refresh();
ReactiveAdapterRegistry adapterRegistry = new ReactiveAdapterRegistry();
this.resolver = new RequestHeaderMethodArgumentResolver(context.getBeanFactory(), adapterRegistry);
ConfigurableWebBindingInitializer initializer = new ConfigurableWebBindingInitializer();
initializer.setConversionService(new DefaultFormattingConversionService());
this.bindingContext = new BindingContext(initializer);
Method method = ReflectionUtils.findMethod(getClass(), "params", (Class<?>[]) null);
this.paramNamedDefaultValueStringHeader = new SynthesizingMethodParameter(method, 0);
this.paramNamedValueStringArray = new SynthesizingMethodParameter(method, 1);
this.paramSystemProperty = new SynthesizingMethodParameter(method, 2);
this.paramResolvedNameWithExpression = new SynthesizingMethodParameter(method, 3);
this.paramResolvedNameWithPlaceholder = new SynthesizingMethodParameter(method, 4);
this.paramNamedValueMap = new SynthesizingMethodParameter(method, 5);
this.paramDate = new SynthesizingMethodParameter(method, 6);
this.paramInstant = new SynthesizingMethodParameter(method, 7);
this.paramMono = new SynthesizingMethodParameter(method, 8);
}
@Test
public void supportsParameter() {
assertTrue("String parameter not supported", resolver.supportsParameter(paramNamedDefaultValueStringHeader));
assertTrue("String array parameter not supported", resolver.supportsParameter(paramNamedValueStringArray));
assertFalse("non-@RequestParam parameter supported", resolver.supportsParameter(paramNamedValueMap));
try {
this.resolver.supportsParameter(this.paramMono);
fail();
}
catch (IllegalStateException ex) {
assertTrue("Unexpected error message:\n" + ex.getMessage(),
ex.getMessage().startsWith(
"RequestHeaderMethodArgumentResolver doesn't support reactive type wrapper"));
}
}
@Test
public void resolveStringArgument() throws Exception {
String expected = "foo";
ServerWebExchange exchange = MockServerHttpRequest.get("/").header("name", expected).toExchange();
Mono<Object> mono = this.resolver.resolveArgument(
this.paramNamedDefaultValueStringHeader, this.bindingContext, exchange);
Object result = mono.block();
assertTrue(result instanceof String);
assertEquals(expected, result);
}
@Test
public void resolveStringArrayArgument() throws Exception {
ServerWebExchange exchange = MockServerHttpRequest.get("/").header("name", "foo", "bar").toExchange();
Mono<Object> mono = this.resolver.resolveArgument(
this.paramNamedValueStringArray, this.bindingContext, exchange);
Object result = mono.block();
assertTrue(result instanceof String[]);
assertArrayEquals(new String[] {"foo", "bar"}, (String[]) result);
}
@Test
public void resolveDefaultValue() throws Exception {
MockServerWebExchange exchange = MockServerHttpRequest.get("/").toExchange();
Mono<Object> mono = this.resolver.resolveArgument(
this.paramNamedDefaultValueStringHeader, this.bindingContext, exchange);
Object result = mono.block();
assertTrue(result instanceof String);
assertEquals("bar", result);
}
@Test
public void resolveDefaultValueFromSystemProperty() throws Exception {
System.setProperty("systemProperty", "bar");
try {
Mono<Object> mono = this.resolver.resolveArgument(
this.paramSystemProperty, this.bindingContext,
MockServerHttpRequest.get("/").toExchange());
Object result = mono.block();
assertTrue(result instanceof String);
assertEquals("bar", result);
}
finally {
System.clearProperty("systemProperty");
}
}
@Test
public void resolveNameFromSystemPropertyThroughExpression() throws Exception {
String expected = "foo";
ServerWebExchange exchange = MockServerHttpRequest.get("/").header("bar", expected).toExchange();
System.setProperty("systemProperty", "bar");
try {
Mono<Object> mono = this.resolver.resolveArgument(
this.paramResolvedNameWithExpression, this.bindingContext, exchange);
Object result = mono.block();
assertTrue(result instanceof String);
assertEquals(expected, result);
}
finally {
System.clearProperty("systemProperty");
}
}
@Test
public void resolveNameFromSystemPropertyThroughPlaceholder() throws Exception {
String expected = "foo";
ServerWebExchange exchange = MockServerHttpRequest.get("/").header("bar", expected).toExchange();
System.setProperty("systemProperty", "bar");
try {
Mono<Object> mono = this.resolver.resolveArgument(
this.paramResolvedNameWithPlaceholder, this.bindingContext, exchange);
Object result = mono.block();
assertTrue(result instanceof String);
assertEquals(expected, result);
}
finally {
System.clearProperty("systemProperty");
}
}
@Test
public void notFound() throws Exception {
Mono<Object> mono = resolver.resolveArgument(
this.paramNamedValueStringArray, this.bindingContext,
MockServerHttpRequest.get("/").toExchange());
StepVerifier.create(mono)
.expectNextCount(0)
.expectError(ServerWebInputException.class)
.verify();
}
@Test
@SuppressWarnings("deprecation")
public void dateConversion() throws Exception {
String rfc1123val = "Thu, 21 Apr 2016 17:11:08 +0100";
ServerWebExchange exchange = MockServerHttpRequest.get("/").header("name", rfc1123val).toExchange();
Mono<Object> mono = this.resolver.resolveArgument(this.paramDate, this.bindingContext, exchange);
Object result = mono.block();
assertTrue(result instanceof Date);
assertEquals(new Date(rfc1123val), result);
}
@Test
public void instantConversion() throws Exception {
String rfc1123val = "Thu, 21 Apr 2016 17:11:08 +0100";
ServerWebExchange exchange = MockServerHttpRequest.get("/").header("name", rfc1123val).toExchange();
Mono<Object> mono = this.resolver.resolveArgument(this.paramInstant, this.bindingContext, exchange);
Object result = mono.block();
assertTrue(result instanceof Instant);
assertEquals(Instant.from(DateTimeFormatter.RFC_1123_DATE_TIME.parse(rfc1123val)), result);
}
public void params(
@RequestHeader(name = "name", defaultValue = "bar") String param1,
@RequestHeader("name") String[] param2,
@RequestHeader(name = "name", defaultValue="#{systemProperties.systemProperty}") String param3,
@RequestHeader("#{systemProperties.systemProperty}") String param4,
@RequestHeader("${systemProperty}") String param5,
@RequestHeader("name") Map<?, ?> unsupported,
@RequestHeader("name") Date dateParam,
@RequestHeader("name") Instant instantParam,
@RequestHeader Mono<String> alsoNotSupported) {
}
}