| /* |
| * Copyright (C) 2013 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. |
| */ |
| |
| #include "base/file.h" |
| |
| #include <gtest/gtest.h> |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| |
| #include <string> |
| |
| #include "base/test_utils.h" |
| |
| TEST(file, ReadFileToString_ENOENT) { |
| std::string s("hello"); |
| errno = 0; |
| ASSERT_FALSE(android::base::ReadFileToString("/proc/does-not-exist", &s)); |
| EXPECT_EQ(ENOENT, errno); |
| EXPECT_EQ("", s); // s was cleared. |
| } |
| |
| TEST(file, ReadFileToString_WriteStringToFile) { |
| TemporaryFile tf; |
| ASSERT_TRUE(tf.fd != -1); |
| ASSERT_TRUE(android::base::WriteStringToFile("abc", tf.path)) |
| << strerror(errno); |
| std::string s; |
| ASSERT_TRUE(android::base::ReadFileToString(tf.path, &s)) |
| << strerror(errno); |
| EXPECT_EQ("abc", s); |
| } |
| |
| // WriteStringToFile2 is explicitly for setting Unix permissions, which make no |
| // sense on Windows. |
| #if !defined(_WIN32) |
| TEST(file, WriteStringToFile2) { |
| TemporaryFile tf; |
| ASSERT_TRUE(tf.fd != -1); |
| ASSERT_TRUE(android::base::WriteStringToFile("abc", tf.path, 0660, |
| getuid(), getgid())) |
| << strerror(errno); |
| struct stat sb; |
| ASSERT_EQ(0, stat(tf.path, &sb)); |
| ASSERT_EQ(0660U, static_cast<unsigned int>(sb.st_mode & ~S_IFMT)); |
| ASSERT_EQ(getuid(), sb.st_uid); |
| ASSERT_EQ(getgid(), sb.st_gid); |
| std::string s; |
| ASSERT_TRUE(android::base::ReadFileToString(tf.path, &s)) |
| << strerror(errno); |
| EXPECT_EQ("abc", s); |
| } |
| #endif |
| |
| TEST(file, WriteStringToFd) { |
| TemporaryFile tf; |
| ASSERT_TRUE(tf.fd != -1); |
| ASSERT_TRUE(android::base::WriteStringToFd("abc", tf.fd)); |
| |
| ASSERT_EQ(0, lseek(tf.fd, 0, SEEK_SET)) << strerror(errno); |
| |
| std::string s; |
| ASSERT_TRUE(android::base::ReadFdToString(tf.fd, &s)) << strerror(errno); |
| EXPECT_EQ("abc", s); |
| } |
| |
| TEST(file, ReadFully) { |
| #ifdef _WIN32 |
| VersionFile ver; |
| ASSERT_NE(ver.filename, nullptr); |
| const char* filename = ver.filename; |
| // Note that ReadFully() does CR/LF translation, so we expect \n, not \r\n. |
| const char expected[] = "\nMicrosoft Windows"; |
| #else |
| const char* filename = "/proc/version"; |
| const char expected[] = "Linux"; |
| #endif |
| int fd = open(filename, O_RDONLY); |
| ASSERT_NE(-1, fd) << strerror(errno); |
| |
| char buf[1024]; |
| memset(buf, 0, sizeof(buf)); |
| ASSERT_TRUE(android::base::ReadFully(fd, buf, sizeof(expected) - 1)); |
| ASSERT_STREQ(expected, buf); |
| |
| ASSERT_EQ(0, lseek(fd, 0, SEEK_SET)) << strerror(errno); |
| |
| ASSERT_FALSE(android::base::ReadFully(fd, buf, sizeof(buf))); |
| |
| close(fd); |
| } |
| |
| TEST(file, WriteFully) { |
| TemporaryFile tf; |
| ASSERT_TRUE(tf.fd != -1); |
| ASSERT_TRUE(android::base::WriteFully(tf.fd, "abc", 3)); |
| std::string s; |
| ASSERT_TRUE(android::base::ReadFileToString(tf.path, &s)) |
| << strerror(errno); |
| EXPECT_EQ("abc", s); |
| } |