1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "SkOSFile.h"
9#include "SkString.h"
10#include "Test.h"
11
12/**
13 *  Test SkPathJoin and SkBasename.
14 *  Will use SkPathJoin to append filename to dir, test that it works correctly,
15 *  and tests using SkBasename on the result.
16 *  @param reporter Reporter for test conditions.
17 *  @param dir String representing the path to a folder. May or may not
18 *      end with SkPATH_SEPARATOR.
19 *  @param filename String representing the basename of a file. Must NOT
20 *      contain SkPATH_SEPARATOR.
21 */
22static void test_dir_with_file(skiatest::Reporter* reporter, SkString dir,
23                               SkString filename) {
24    // If filename contains SkPATH_SEPARATOR, the tests will fail.
25    SkASSERT(!filename.contains(SkPATH_SEPARATOR));
26
27    // Tests for SkOSPath::SkPathJoin and SkOSPath::SkBasename
28
29    // fullName should be "dir<SkPATH_SEPARATOR>file"
30    SkString fullName = SkOSPath::SkPathJoin(dir.c_str(), filename.c_str());
31
32    // fullName should be the combined size of dir and file, plus one if
33    // dir did not include the final path separator.
34    size_t expectedSize = dir.size() + filename.size();
35    if (!dir.endsWith(SkPATH_SEPARATOR)) {
36        expectedSize++;
37    }
38    REPORTER_ASSERT(reporter, fullName.size() == expectedSize);
39
40    SkString basename = SkOSPath::SkBasename(fullName.c_str());
41
42    // basename should be the same as filename
43    REPORTER_ASSERT(reporter, basename.equals(filename));
44
45    // basename will not contain a path separator
46    REPORTER_ASSERT(reporter, !basename.contains(SkPATH_SEPARATOR));
47
48    // Now take the basename of filename, which should be the same as filename.
49    basename = SkOSPath::SkBasename(filename.c_str());
50    REPORTER_ASSERT(reporter, basename.equals(filename));
51}
52
53DEF_TEST(OSPath, reporter) {
54    SkString dir("dir");
55    SkString filename("file");
56    test_dir_with_file(reporter, dir, filename);
57
58    // Now make sure this works with a path separator at the end of dir.
59    dir.appendUnichar(SkPATH_SEPARATOR);
60    test_dir_with_file(reporter, dir, filename);
61
62    // Test using no filename.
63    test_dir_with_file(reporter, dir, SkString());
64
65    // Testing using no directory.
66    test_dir_with_file(reporter, SkString(), filename);
67
68    // Test with a sub directory.
69    dir.append("subDir");
70    test_dir_with_file(reporter, dir, filename);
71
72    // Basename of a directory with a path separator at the end is empty.
73    dir.appendUnichar(SkPATH_SEPARATOR);
74    SkString baseOfDir = SkOSPath::SkBasename(dir.c_str());
75    REPORTER_ASSERT(reporter, baseOfDir.size() == 0);
76
77    // Basename of NULL is an empty string.
78    SkString empty = SkOSPath::SkBasename(NULL);
79    REPORTER_ASSERT(reporter, empty.size() == 0);
80
81    // Test that NULL can be used for the directory and filename.
82    SkString emptyPath = SkOSPath::SkPathJoin(NULL, NULL);
83    REPORTER_ASSERT(reporter, emptyPath.size() == 1);
84    REPORTER_ASSERT(reporter, emptyPath.contains(SkPATH_SEPARATOR));
85}
86