1 // Copyright 2020 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
5 #include "gn/file_writer.h"
6
7 #include "base/files/file_path.h"
8 #include "base/files/scoped_temp_dir.h"
9 #include "gn/filesystem_utils.h"
10
11 #include "util/build_config.h"
12 #include "util/sys_info.h"
13 #include "util/test/test.h"
14
TEST(FileWriter,SingleWrite)15 TEST(FileWriter, SingleWrite) {
16 base::ScopedTempDir temp_dir;
17 ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
18
19 const std::string data = "foo";
20
21 base::FilePath file_path = temp_dir.GetPath().AppendASCII("foo.txt");
22
23 FileWriter writer;
24 EXPECT_TRUE(writer.Create(file_path));
25 EXPECT_TRUE(writer.Write(data));
26 EXPECT_TRUE(writer.Close());
27
28 EXPECT_TRUE(ContentsEqual(file_path, data));
29 }
30
TEST(FileWriter,MultipleWrites)31 TEST(FileWriter, MultipleWrites) {
32 base::ScopedTempDir temp_dir;
33 ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
34
35 const std::string data = "Hello World!";
36
37 base::FilePath file_path = temp_dir.GetPath().AppendASCII("foo.txt");
38
39 FileWriter writer;
40 EXPECT_TRUE(writer.Create(file_path));
41 EXPECT_TRUE(writer.Write("Hello "));
42 EXPECT_TRUE(writer.Write("World!"));
43 EXPECT_TRUE(writer.Close());
44
45 EXPECT_TRUE(ContentsEqual(file_path, data));
46 }
47
48 #if defined(OS_WIN)
TEST(FileWriter,LongPathWrite)49 TEST(FileWriter, LongPathWrite) {
50 if (!IsLongPathsSupportEnabled())
51 return;
52
53 base::ScopedTempDir temp_dir;
54 ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
55
56 const std::string data = "Hello World!";
57
58 base::FilePath file_path = temp_dir.GetPath().AppendASCII(std::string(255, 'A'));
59
60 EXPECT_GE(file_path.value().size(), MAX_PATH);
61
62 FileWriter writer;
63 EXPECT_TRUE(writer.Create(file_path));
64 EXPECT_TRUE(writer.Write(data));
65 EXPECT_TRUE(writer.Close());
66
67 EXPECT_TRUE(ContentsEqual(file_path, data));
68 }
69 #endif