1 //
2 // Copyright (C) 2009 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 
17 #include "update_engine/payload_consumer/file_writer.h"
18 
19 #include <errno.h>
20 #include <string.h>
21 #include <unistd.h>
22 
23 #include <string>
24 
25 #include <brillo/secure_blob.h>
26 #include <gtest/gtest.h>
27 
28 #include "update_engine/common/test_utils.h"
29 #include "update_engine/common/utils.h"
30 
31 using std::string;
32 
33 namespace chromeos_update_engine {
34 
35 class FileWriterTest : public ::testing::Test { };
36 
37 TEST(FileWriterTest, SimpleTest) {
38   // Create a uniquely named file for testing.
39   string path;
40   ASSERT_TRUE(utils::MakeTempFile("FileWriterTest-XXXXXX", &path, nullptr));
41   ScopedPathUnlinker path_unlinker(path);
42 
43   DirectFileWriter file_writer;
44   EXPECT_EQ(0, file_writer.Open(path.c_str(),
45                                 O_CREAT | O_LARGEFILE | O_TRUNC | O_WRONLY,
46                                 0644));
47   EXPECT_TRUE(file_writer.Write("test", 4));
48   brillo::Blob actual_data;
49   EXPECT_TRUE(utils::ReadFile(path, &actual_data));
50 
51   EXPECT_FALSE(memcmp("test", actual_data.data(), actual_data.size()));
52   EXPECT_EQ(0, file_writer.Close());
53 }
54 
55 TEST(FileWriterTest, ErrorTest) {
56   DirectFileWriter file_writer;
57   const string path("/tmp/ENOENT/FileWriterTest");
58   EXPECT_EQ(-ENOENT, file_writer.Open(path.c_str(),
59                                       O_CREAT | O_LARGEFILE | O_TRUNC, 0644));
60 }
61 
62 TEST(FileWriterTest, WriteErrorTest) {
63   // Create a uniquely named file for testing.
64   string path;
65   ASSERT_TRUE(utils::MakeTempFile("FileWriterTest-XXXXXX", &path, nullptr));
66   ScopedPathUnlinker path_unlinker(path);
67 
68   DirectFileWriter file_writer;
69   EXPECT_EQ(0, file_writer.Open(path.c_str(),
70                                 O_CREAT | O_LARGEFILE | O_TRUNC | O_RDONLY,
71                                 0644));
72   EXPECT_FALSE(file_writer.Write("x", 1));
73   EXPECT_EQ(0, file_writer.Close());
74 }
75 
76 
77 }  // namespace chromeos_update_engine
78