Android example source code file (HttpHeaderTest.java)

This example Android source code file (HttpHeaderTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, androidtestcase, cache-control, cache-control:max-age=15, cache_control_max_age, cache_control_private, chararraybuffer, exception, fri, gmt, headers, http, httpheadertest, internet, jun, last_modified, net, network, string, test

The HttpHeaderTest.java Android example source code

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * 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 android.core;

import android.test.AndroidTestCase;
import org.apache.http.util.CharArrayBuffer;

import android.net.http.Headers;

public class HttpHeaderTest extends AndroidTestCase {

    static final String LAST_MODIFIED = "Last-Modified: Fri, 18 Jun 2010 09:56:47 GMT";
    static final String CACHE_CONTROL_MAX_AGE = "Cache-Control:max-age=15";
    static final String CACHE_CONTROL_PRIVATE = "Cache-Control: private";

    /**
     * Tests that cache control header supports multiple instances of the header,
     * according to HTTP specification.
     *
     * The HTTP specification states the following about the fields:
     * Multiple message-header fields with the same field-name MAY be present
     * in a message if and only if the entire field-value for that header field
     * is defined as a comma-separated list [i.e., #(values)]. It MUST be
     * possible to combine the multiple header fields into one "field-name:
     * field-value" pair, without changing the semantics of the message, by
     * appending each subsequent field-value to the first, each separated by a
     * comma. The order in which header fields with the same field-name are
     * received is therefore significant to the interpretation of the combined
     * field value, and thus a proxy MUST NOT change the order of these field
     * values when a message is forwarded.
     */
    public void testCacheControl() throws Exception {
        Headers h = new Headers();
        CharArrayBuffer buffer = new CharArrayBuffer(64);

        buffer.append(CACHE_CONTROL_MAX_AGE);
        h.parseHeader(buffer);

        buffer.clear();
        buffer.append(LAST_MODIFIED);
        h.parseHeader(buffer);
        assertEquals("max-age=15", h.getCacheControl());

        buffer.clear();
        buffer.append(CACHE_CONTROL_PRIVATE);
        h.parseHeader(buffer);
        assertEquals("max-age=15,private", h.getCacheControl());
    }
}