1 /* 2 * Copyright (C) 2011 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.net; 18 19 import com.google.common.base.Ascii; 20 import com.google.common.base.Joiner; 21 import com.google.common.base.Splitter; 22 import com.google.common.collect.ImmutableSet; 23 import com.google.common.collect.Lists; 24 25 import junit.framework.TestCase; 26 27 import java.lang.reflect.Field; 28 import java.util.List; 29 30 /** 31 * Tests for the HttpHeaders class. 32 * 33 * @author Kurt Aflred Kluever 34 */ 35 public class HttpHeadersTest extends TestCase { 36 public void testConstantNameMatchesString() throws Exception { 37 for (Field field : HttpHeaders.class.getDeclaredFields()) { 38 /* 39 * Coverage mode generates synthetic fields. If we ever add private 40 * fields, they will cause similar problems, and we may want to switch 41 * this check to isAccessible(). 42 */ 43 if (!field.isSynthetic()) { 44 assertEquals(upperToHttpHeaderName(field.getName()), field.get(null)); 45 } 46 } 47 } 48 49 private static final ImmutableSet<String> UPPERCASE_ACRONYMS = ImmutableSet.of( 50 "ID", "DNT", "GFE", "IP", "MD5", "P3P", "TE", "UID", "URL", "WWW", "XSS"); 51 52 private static final Splitter SPLITTER = Splitter.on('_'); 53 private static final Joiner JOINER = Joiner.on('-'); 54 55 private static String upperToHttpHeaderName(String constantName) { 56 // Special case some of the weird HTTP Header names... 57 if (constantName.equals("ETAG")) { 58 return "ETag"; 59 } 60 61 List<String> parts = Lists.newArrayList(); 62 for (String part : SPLITTER.split(constantName)) { 63 if (!UPPERCASE_ACRONYMS.contains(part)) { 64 part = part.charAt(0) + Ascii.toLowerCase(part.substring(1)); 65 } 66 parts.add(part); 67 } 68 return JOINER.join(parts); 69 } 70 } 71
