blob: 5445a0dd02831db1d3cf54f70bf870c1f455230a [file] [log] [blame]
/*
* 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 "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_success) {
std::string s("hello");
ASSERT_TRUE(android::base::ReadFileToString("/proc/version", &s)) << errno;
EXPECT_GT(s.length(), 6U);
EXPECT_EQ('\n', s[s.length() - 1]);
s[5] = 0;
EXPECT_STREQ("Linux", s.c_str());
}
TEST(file, WriteStringToFile) {
TemporaryFile tf;
ASSERT_TRUE(tf.fd != -1);
ASSERT_TRUE(android::base::WriteStringToFile("abc", tf.filename)) << errno;
std::string s;
ASSERT_TRUE(android::base::ReadFileToString(tf.filename, &s)) << errno;
EXPECT_EQ("abc", s);
}
TEST(file, WriteStringToFile2) {
TemporaryFile tf;
ASSERT_TRUE(tf.fd != -1);
ASSERT_TRUE(android::base::WriteStringToFile("abc", tf.filename, 0660,
getuid(), getgid()))
<< errno;
struct stat sb;
ASSERT_EQ(0, stat(tf.filename, &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.filename, &s)) << errno;
EXPECT_EQ("abc", s);
}
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)) << errno;
std::string s;
ASSERT_TRUE(android::base::ReadFdToString(tf.fd, &s)) << errno;
EXPECT_EQ("abc", s);
}
TEST(file, ReadFully) {
int fd = open("/proc/version", O_RDONLY);
ASSERT_NE(-1, fd) << strerror(errno);
char buf[1024];
memset(buf, 0, sizeof(buf));
ASSERT_TRUE(android::base::ReadFully(fd, buf, 5));
ASSERT_STREQ("Linux", 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.filename, &s)) << errno;
EXPECT_EQ("abc", s);
}