spring ContentNegotiatingViewResolverTests 源码

2022-08-08
浏览 (363)

spring ContentNegotiatingViewResolverTests 代码

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

/*
 * Copyright 2002-2021 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 org.springframework.web.servlet.view;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import org.springframework.http.MediaType;
import org.springframework.web.accept.ContentNegotiationManager;
import org.springframework.web.accept.FixedContentNegotiationStrategy;
import org.springframework.web.accept.HeaderContentNegotiationStrategy;
import org.springframework.web.accept.MappingMediaTypeFileExtensionResolver;
import org.springframework.web.accept.ParameterContentNegotiationStrategy;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.context.support.StaticWebApplicationContext;
import org.springframework.web.servlet.HandlerMapping;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.testfixture.servlet.MockHttpServletRequest;
import org.springframework.web.testfixture.servlet.MockHttpServletResponse;
import org.springframework.web.testfixture.servlet.MockServletContext;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;

/**
 * @author Arjen Poutsma
 */
public class ContentNegotiatingViewResolverTests {

	private ContentNegotiatingViewResolver viewResolver;

	private MockHttpServletRequest request;

	@BeforeEach
	public void createViewResolver() {
		StaticWebApplicationContext wac = new StaticWebApplicationContext();
		wac.setServletContext(new MockServletContext());
		wac.refresh();
		viewResolver = new ContentNegotiatingViewResolver();
		viewResolver.setApplicationContext(wac);
		request = new MockHttpServletRequest("GET", "/test");
		RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(request));
	}

	@AfterEach
	public void resetRequestContextHolder() {
		RequestContextHolder.resetRequestAttributes();
	}

	@Test
	public void getMediaTypeAcceptHeaderWithProduces() throws Exception {
		Set<MediaType> producibleTypes = Collections.singleton(MediaType.APPLICATION_XHTML_XML);
		request.setAttribute(HandlerMapping.PRODUCIBLE_MEDIA_TYPES_ATTRIBUTE, producibleTypes);
		request.addHeader("Accept", "text/html,application/xml;q=0.9,application/xhtml+xml,*/*;q=0.8");
		viewResolver.afterPropertiesSet();
		List<MediaType> result = viewResolver.getMediaTypes(request);
		assertThat(result.get(0)).as("Invalid content type").isEqualTo(new MediaType("application", "xhtml+xml"));
	}

	@Test
	public void resolveViewNameWithPathExtension() throws Exception {
		request.setRequestURI("/test");
		request.setParameter("format", "xls");

		String mediaType = "application/vnd.ms-excel";
		ContentNegotiationManager manager = new ContentNegotiationManager(
				new ParameterContentNegotiationStrategy(
						Collections.singletonMap("xls", MediaType.parseMediaType(mediaType))));

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setContentNegotiationManager(manager);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));
		viewResolver.afterPropertiesSet();

		View viewMock = mock(View.class, "application_xls");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(null);
		given(viewResolverMock.resolveViewName(viewName + ".xls", locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn(mediaType);

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock);
	}

	@Test
	public void resolveViewNameWithAcceptHeader() throws Exception {
		request.addHeader("Accept", "application/vnd.ms-excel");

		Map<String, MediaType> mapping = Collections.singletonMap("xls", MediaType.valueOf("application/vnd.ms-excel"));
		MappingMediaTypeFileExtensionResolver extensionsResolver = new MappingMediaTypeFileExtensionResolver(mapping);
		ContentNegotiationManager manager = new ContentNegotiationManager(new HeaderContentNegotiationStrategy());
		manager.addFileExtensionResolvers(extensionsResolver);
		viewResolver.setContentNegotiationManager(manager);

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));

		View viewMock = mock(View.class, "application_xls");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(null);
		given(viewResolverMock.resolveViewName(viewName + ".xls", locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn("application/vnd.ms-excel");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock);
	}

	@Test
	public void resolveViewNameWithInvalidAcceptHeader() throws Exception {
		request.addHeader("Accept", "application");

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));
		viewResolver.afterPropertiesSet();

		View result = viewResolver.resolveViewName("test", Locale.ENGLISH);
		assertThat(result).isNull();
	}

	@Test
	public void resolveViewNameWithRequestParameter() throws Exception {
		request.addParameter("format", "xls");

		Map<String, MediaType> mapping = Collections.singletonMap("xls", MediaType.valueOf("application/vnd.ms-excel"));
		ParameterContentNegotiationStrategy paramStrategy = new ParameterContentNegotiationStrategy(mapping);
		viewResolver.setContentNegotiationManager(new ContentNegotiationManager(paramStrategy));

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));
		viewResolver.afterPropertiesSet();

		View viewMock = mock(View.class, "application_xls");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(null);
		given(viewResolverMock.resolveViewName(viewName + ".xls", locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn("application/vnd.ms-excel");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock);
	}

	@Test
	public void resolveViewNameWithDefaultContentType() throws Exception {
		request.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");

		MediaType mediaType = new MediaType("application", "xml");
		FixedContentNegotiationStrategy fixedStrategy = new FixedContentNegotiationStrategy(mediaType);
		viewResolver.setContentNegotiationManager(new ContentNegotiationManager(fixedStrategy));

		ViewResolver viewResolverMock1 = mock(ViewResolver.class, "viewResolver1");
		ViewResolver viewResolverMock2 = mock(ViewResolver.class, "viewResolver2");
		viewResolver.setViewResolvers(Arrays.asList(viewResolverMock1, viewResolverMock2));
		viewResolver.afterPropertiesSet();

		View viewMock1 = mock(View.class, "application_xml");
		View viewMock2 = mock(View.class, "text_html");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock1.resolveViewName(viewName, locale)).willReturn(viewMock1);
		given(viewResolverMock2.resolveViewName(viewName, locale)).willReturn(viewMock2);
		given(viewMock1.getContentType()).willReturn("application/xml");
		given(viewMock2.getContentType()).willReturn("text/html;charset=ISO-8859-1");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock1);
	}

	@Test
	public void resolveViewNameAcceptHeader() throws Exception {
		request.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");

		ViewResolver viewResolverMock1 = mock(ViewResolver.class);
		ViewResolver viewResolverMock2 = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Arrays.asList(viewResolverMock1, viewResolverMock2));

		viewResolver.afterPropertiesSet();

		View viewMock1 = mock(View.class, "application_xml");
		View viewMock2 = mock(View.class, "text_html");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock1.resolveViewName(viewName, locale)).willReturn(viewMock1);
		given(viewResolverMock2.resolveViewName(viewName, locale)).willReturn(viewMock2);
		given(viewMock1.getContentType()).willReturn("application/xml");
		given(viewMock2.getContentType()).willReturn("text/html;charset=ISO-8859-1");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock2);
	}

	// SPR-9160

	@Test
	public void resolveViewNameAcceptHeaderSortByQuality() throws Exception {
		request.addHeader("Accept", "text/plain;q=0.5, application/json");

		viewResolver.setContentNegotiationManager(new ContentNegotiationManager(new HeaderContentNegotiationStrategy()));

		ViewResolver htmlViewResolver = mock(ViewResolver.class);
		ViewResolver jsonViewResolver = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Arrays.asList(htmlViewResolver, jsonViewResolver));

		View htmlView = mock(View.class, "text_html");
		View jsonViewMock = mock(View.class, "application_json");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(htmlViewResolver.resolveViewName(viewName, locale)).willReturn(htmlView);
		given(jsonViewResolver.resolveViewName(viewName, locale)).willReturn(jsonViewMock);
		given(htmlView.getContentType()).willReturn("text/html");
		given(jsonViewMock.getContentType()).willReturn("application/json");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(jsonViewMock);
	}

	// SPR-9807

	@Test
	public void resolveViewNameAcceptHeaderWithSuffix() throws Exception {
		request.addHeader("Accept", "application/vnd.example-v2+xml");

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Arrays.asList(viewResolverMock));

		viewResolver.afterPropertiesSet();

		View viewMock = mock(View.class, "application_xml");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn("application/*+xml");

		View result = viewResolver.resolveViewName(viewName, locale);

		assertThat(result).as("Invalid view").isSameAs(viewMock);
		assertThat(request.getAttribute(View.SELECTED_CONTENT_TYPE)).isEqualTo(new MediaType("application", "vnd.example-v2+xml"));
	}

	@Test
	public void resolveViewNameAcceptHeaderDefaultView() throws Exception {
		request.addHeader("Accept", "application/json");

		ViewResolver viewResolverMock1 = mock(ViewResolver.class);
		ViewResolver viewResolverMock2 = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Arrays.asList(viewResolverMock1, viewResolverMock2));

		View viewMock1 = mock(View.class, "application_xml");
		View viewMock2 = mock(View.class, "text_html");
		View viewMock3 = mock(View.class, "application_json");

		List<View> defaultViews = new ArrayList<>();
		defaultViews.add(viewMock3);
		viewResolver.setDefaultViews(defaultViews);

		viewResolver.afterPropertiesSet();

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock1.resolveViewName(viewName, locale)).willReturn(viewMock1);
		given(viewResolverMock2.resolveViewName(viewName, locale)).willReturn(viewMock2);
		given(viewMock1.getContentType()).willReturn("application/xml");
		given(viewMock2.getContentType()).willReturn("text/html;charset=ISO-8859-1");
		given(viewMock3.getContentType()).willReturn("application/json");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock3);
	}

	@Test
	@SuppressWarnings("deprecation")
	public void resolveViewNameFilename() throws Exception {
		request.setRequestURI("/test.html");

		ContentNegotiationManager manager =
				new ContentNegotiationManager(new org.springframework.web.accept.PathExtensionContentNegotiationStrategy());

		ViewResolver viewResolverMock1 = mock(ViewResolver.class, "viewResolver1");
		ViewResolver viewResolverMock2 = mock(ViewResolver.class, "viewResolver2");
		viewResolver.setContentNegotiationManager(manager);
		viewResolver.setViewResolvers(Arrays.asList(viewResolverMock1, viewResolverMock2));

		viewResolver.afterPropertiesSet();

		View viewMock1 = mock(View.class, "application_xml");
		View viewMock2 = mock(View.class, "text_html");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock1.resolveViewName(viewName, locale)).willReturn(viewMock1);
		given(viewResolverMock1.resolveViewName(viewName + ".html", locale)).willReturn(null);
		given(viewResolverMock2.resolveViewName(viewName, locale)).willReturn(null);
		given(viewResolverMock2.resolveViewName(viewName + ".html", locale)).willReturn(viewMock2);
		given(viewMock1.getContentType()).willReturn("application/xml");
		given(viewMock2.getContentType()).willReturn("text/html;charset=ISO-8859-1");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock2);
	}

	@Test
	@SuppressWarnings("deprecation")
	public void resolveViewNameFilenameDefaultView() throws Exception {
		request.setRequestURI("/test.json");

		Map<String, MediaType> mapping = Collections.singletonMap("json", MediaType.APPLICATION_JSON);
		org.springframework.web.accept.PathExtensionContentNegotiationStrategy pathStrategy =
				new org.springframework.web.accept.PathExtensionContentNegotiationStrategy(mapping);
		viewResolver.setContentNegotiationManager(new ContentNegotiationManager(pathStrategy));

		ViewResolver viewResolverMock1 = mock(ViewResolver.class);
		ViewResolver viewResolverMock2 = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Arrays.asList(viewResolverMock1, viewResolverMock2));

		View viewMock1 = mock(View.class, "application_xml");
		View viewMock2 = mock(View.class, "text_html");
		View viewMock3 = mock(View.class, "application_json");

		List<View> defaultViews = new ArrayList<>();
		defaultViews.add(viewMock3);
		viewResolver.setDefaultViews(defaultViews);

		viewResolver.afterPropertiesSet();

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock1.resolveViewName(viewName, locale)).willReturn(viewMock1);
		given(viewResolverMock1.resolveViewName(viewName + ".json", locale)).willReturn(null);
		given(viewResolverMock2.resolveViewName(viewName, locale)).willReturn(viewMock2);
		given(viewResolverMock2.resolveViewName(viewName + ".json", locale)).willReturn(null);
		given(viewMock1.getContentType()).willReturn("application/xml");
		given(viewMock2.getContentType()).willReturn("text/html;charset=ISO-8859-1");
		given(viewMock3.getContentType()).willReturn("application/json");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isSameAs(viewMock3);
	}

	@Test
	public void resolveViewContentTypeNull() throws Exception {
		request.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));

		viewResolver.afterPropertiesSet();

		View viewMock = mock(View.class, "application_xml");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn(null);

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isNull();
	}

	@Test
	public void resolveViewNameRedirectView() throws Exception {
		request.addHeader("Accept", "application/json");
		request.setRequestURI("/test");

		StaticWebApplicationContext webAppContext = new StaticWebApplicationContext();
		webAppContext.setServletContext(new MockServletContext());
		webAppContext.refresh();

		UrlBasedViewResolver urlViewResolver = new InternalResourceViewResolver();
		urlViewResolver.setApplicationContext(webAppContext);
		ViewResolver xmlViewResolver = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Arrays.<ViewResolver>asList(xmlViewResolver, urlViewResolver));

		View xmlView = mock(View.class, "application_xml");
		View jsonView = mock(View.class, "application_json");
		viewResolver.setDefaultViews(Arrays.asList(jsonView));

		viewResolver.afterPropertiesSet();

		String viewName = "redirect:anotherTest";
		Locale locale = Locale.ENGLISH;

		given(xmlViewResolver.resolveViewName(viewName, locale)).willReturn(xmlView);
		given(jsonView.getContentType()).willReturn("application/json");

		View actualView = viewResolver.resolveViewName(viewName, locale);
		assertThat(actualView.getClass()).as("Invalid view").isEqualTo(RedirectView.class);
	}

	@Test
	public void resolveViewNoMatch() throws Exception {
		request.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9");

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));

		viewResolver.afterPropertiesSet();

		View viewMock = mock(View.class, "application_xml");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn("application/pdf");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isNull();
	}

	@Test
	public void resolveViewNoMatchUseUnacceptableStatus() throws Exception {
		viewResolver.setUseNotAcceptableStatusCode(true);
		request.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9");

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));

		viewResolver.afterPropertiesSet();

		View viewMock = mock(View.class, "application_xml");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn("application/pdf");

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isNotNull();
		MockHttpServletResponse response = new MockHttpServletResponse();
		result.render(null, request, response);
		assertThat(response.getStatus()).as("Invalid status code set").isEqualTo(406);
	}

	@Test
	public void nestedViewResolverIsNotSpringBean() throws Exception {
		StaticWebApplicationContext webAppContext = new StaticWebApplicationContext();
		webAppContext.setServletContext(new MockServletContext());
		webAppContext.refresh();

		InternalResourceViewResolver nestedResolver = new InternalResourceViewResolver();
		nestedResolver.setApplicationContext(webAppContext);
		nestedResolver.setViewClass(InternalResourceView.class);
		viewResolver.setViewResolvers(new ArrayList<>(Arrays.asList(nestedResolver)));

		FixedContentNegotiationStrategy fixedStrategy = new FixedContentNegotiationStrategy(MediaType.TEXT_HTML);
		viewResolver.setContentNegotiationManager(new ContentNegotiationManager(fixedStrategy));

		viewResolver.afterPropertiesSet();

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		View result = viewResolver.resolveViewName(viewName, locale);
		assertThat(result).as("Invalid view").isNotNull();
	}

	@Test
	public void resolveQualityValue() throws Exception {
		request.addHeader("Accept", "text/html;q=0.9");

		ViewResolver viewResolverMock = mock(ViewResolver.class);
		viewResolver.setViewResolvers(Collections.singletonList(viewResolverMock));

		viewResolver.afterPropertiesSet();

		View viewMock = mock(View.class, "text_html");

		String viewName = "view";
		Locale locale = Locale.ENGLISH;

		given(viewResolverMock.resolveViewName(viewName, locale)).willReturn(viewMock);
		given(viewMock.getContentType()).willReturn("text/html");

		viewResolver.resolveViewName(viewName, locale);

		assertThat(request.getAttribute(View.SELECTED_CONTENT_TYPE)).isEqualTo(MediaType.TEXT_HTML);
	}

}

相关信息

spring 源码目录

相关文章

spring BaseViewTests 源码

spring DefaultRequestToViewNameTranslatorTests 源码

spring DummyMacroRequestContext 源码

spring InternalResourceViewTests 源码

spring RedirectViewTests 源码

spring RedirectViewUriTemplateTests 源码

spring ResourceBundleViewResolverNoCacheTests 源码

spring ResourceBundleViewResolverTests 源码

spring ViewResolverTests 源码

0 赞

所属分类： 后端技术
本文标签： Java Spring
版权声明： 原创文章如转载，请注明本文链接: https://m.seaxiang.com/blog/ecc7b59f5075434f84a0754d15cefd34

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
6、 harmony 鸿蒙初识ArkTS语言
7、 golang
8、 flink kafka connector scan.startup.mode 的几个选项
9、 openharmony
10、 Vue中input框自动聚焦

Loading...