1// Copyright 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5package org.chromium.base.test.util;
6
7import junit.framework.Assert;
8
9import org.chromium.base.PathUtils;
10
11/**
12 * Collection of URL utilities.
13 */
14public class UrlUtils {
15    private static final String DATA_DIR = "/chrome/test/data/";
16
17    /**
18     * Construct the full path of a test data file.
19     * @param path Pathname relative to external/chrome/testing/data
20     */
21    public static String getTestFilePath(String path) {
22        return PathUtils.getExternalStorageDirectory() + DATA_DIR + path;
23    }
24
25    /**
26     * Construct a suitable URL for loading a test data file.
27     * @param path Pathname relative to external/chrome/testing/data
28     */
29    public static String getTestFileUrl(String path) {
30        return "file://" + getTestFilePath(path);
31    }
32
33    /**
34     * Construct a data:text/html URI for loading from an inline HTML.
35     * @param html An unencoded HTML
36     * @return String An URI that contains the given HTML
37     */
38    public static String encodeHtmlDataUri(String html) {
39        try {
40            // URLEncoder encodes into application/x-www-form-encoded, so
41            // ' '->'+' needs to be undone and replaced with ' '->'%20'
42            // to match the Data URI requirements.
43            String encoded =
44                    "data:text/html;utf-8," +
45                    java.net.URLEncoder.encode(html, "UTF-8");
46            encoded = encoded.replace("+", "%20");
47            return encoded;
48        } catch (java.io.UnsupportedEncodingException e) {
49            Assert.fail("Unsupported encoding: " + e.getMessage());
50            return null;
51        }
52    }
53}
54