1 /* 2 * Copyright (C) 2010 The Android Open Source Project 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 package android.core; 17 18 import android.test.AndroidTestCase; 19 import org.apache.http.util.CharArrayBuffer; 20 21 import android.net.http.Headers; 22 import android.util.Log; 23 24 public class HttpHeaderTest extends AndroidTestCase { 25 26 static final String LAST_MODIFIED = "Last-Modified: Fri, 18 Jun 2010 09:56:47 GMT"; 27 static final String CACHE_CONTROL_MAX_AGE = "Cache-Control:max-age=15"; 28 static final String CACHE_CONTROL_PRIVATE = "Cache-Control: private"; 29 static final String CACHE_CONTROL_COMPOUND = "Cache-Control: no-cache, max-age=200000"; 30 static final String CACHE_CONTROL_COMPOUND2 = "Cache-Control: max-age=200000, no-cache"; 31 32 /** 33 * Tests that cache control header supports multiple instances of the header, 34 * according to HTTP specification. 35 * 36 * The HTTP specification states the following about the fields: 37 * Multiple message-header fields with the same field-name MAY be present 38 * in a message if and only if the entire field-value for that header field 39 * is defined as a comma-separated list [i.e., #(values)]. It MUST be 40 * possible to combine the multiple header fields into one "field-name: 41 * field-value" pair, without changing the semantics of the message, by 42 * appending each subsequent field-value to the first, each separated by a 43 * comma. The order in which header fields with the same field-name are 44 * received is therefore significant to the interpretation of the combined 45 * field value, and thus a proxy MUST NOT change the order of these field 46 * values when a message is forwarded. 47 */ 48 public void testCacheControl() throws Exception { 49 Headers h = new Headers(); 50 CharArrayBuffer buffer = new CharArrayBuffer(64); 51 52 buffer.append(CACHE_CONTROL_MAX_AGE); 53 h.parseHeader(buffer); 54 55 buffer.clear(); 56 buffer.append(LAST_MODIFIED); 57 h.parseHeader(buffer); 58 assertEquals("max-age=15", h.getCacheControl()); 59 60 buffer.clear(); 61 buffer.append(CACHE_CONTROL_PRIVATE); 62 h.parseHeader(buffer); 63 assertEquals("max-age=15,private", h.getCacheControl()); 64 } 65 66 } 67
