spring PathResourceLookupFunctionTests 源码

spring PathResourceLookupFunctionTests 代码

文件路径：/spring-webmvc/src/test/java/org/springframework/web/servlet/function/PathResourceLookupFunctionTests.java

/*
 * Copyright 2002-2020 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 org.springframework.web.servlet.function;

import java.io.File;
import java.util.Collections;
import java.util.Optional;
import java.util.function.Function;

import org.junit.jupiter.api.Test;

import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.web.servlet.handler.PathPatternsTestUtils;

import static org.assertj.core.api.Assertions.assertThat;

/**
 * @author Arjen Poutsma
 */
class PathResourceLookupFunctionTests {

	@Test
	void normal() throws Exception {
		ClassPathResource location = new ClassPathResource("org/springframework/web/servlet/function/");
		PathResourceLookupFunction function = new PathResourceLookupFunction("/resources/**", location);
		ServerRequest request = initRequest("GET", "/resources/response.txt");

		Optional<Resource> result = function.apply(request);
		assertThat(result.isPresent()).isTrue();

		File expected = new ClassPathResource("response.txt", getClass()).getFile();
		assertThat(result.get().getFile()).isEqualTo(expected);
	}

	@Test
	void subPath() throws Exception {
		ClassPathResource location = new ClassPathResource("org/springframework/web/servlet/function/");
		PathResourceLookupFunction function = new PathResourceLookupFunction("/resources/**", location);
		ServerRequest request = initRequest("GET", "/resources/child/response.txt");

		Optional<Resource> result = function.apply(request);
		assertThat(result.isPresent()).isTrue();

		File expected = new ClassPathResource("org/springframework/web/servlet/function/child/response.txt").getFile();
		assertThat(result.get().getFile()).isEqualTo(expected);
	}

	@Test
	void notFound() {
		ClassPathResource location = new ClassPathResource("org/springframework/web/reactive/function/server/");
		PathResourceLookupFunction function = new PathResourceLookupFunction("/resources/**", location);
		ServerRequest request = initRequest("GET", "/resources/foo.txt");

		Optional<Resource> result = function.apply(request);
		assertThat(result.isPresent()).isFalse();
	}

	@Test
	void composeResourceLookupFunction() throws Exception {
		ClassPathResource defaultResource = new ClassPathResource("response.txt", getClass());

		Function<ServerRequest, Optional<Resource>> lookupFunction =
				new PathResourceLookupFunction("/resources/**",
						new ClassPathResource("org/springframework/web/servlet/function/"));

		Function<ServerRequest, Optional<Resource>> customLookupFunction =
				lookupFunction.andThen((Optional<Resource> optionalResource) -> {
					if (optionalResource.isPresent()) {
						return optionalResource;
					}
					else {
						return Optional.of(defaultResource);
					}
				});

		ServerRequest request = initRequest("GET", "/resources/foo");

		Optional<Resource> result = customLookupFunction.apply(request);
		assertThat(result.isPresent()).isTrue();

		assertThat(result.get().getFile()).isEqualTo(defaultResource.getFile());
	}

	private ServerRequest initRequest(String httpMethod, String requestUri) {
		return new DefaultServerRequest(
				PathPatternsTestUtils.initRequest(httpMethod, requestUri, true),
				Collections.emptyList());
	}

}

相关信息

spring 源码目录

相关文章

spring AttributesTestVisitor 源码

spring DefaultAsyncServerResponseTests 源码

spring DefaultEntityResponseBuilderTests 源码

spring DefaultRenderingResponseTests 源码

spring DefaultServerRequestBuilderTests 源码

spring DefaultServerRequestTests 源码

spring DefaultServerResponseBuilderTests 源码

spring RequestPredicateTests 源码

spring RequestPredicatesTests 源码

spring ResourceHandlerFunctionTests 源码