107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "base/file.h"
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string>
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#include "test_utils.h"
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TEST(file, ReadFileToString_ENOENT) {
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std::string s("hello");
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errno = 0;
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ASSERT_FALSE(android::base::ReadFileToString("/proc/does-not-exist", &s));
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EXPECT_EQ(ENOENT, errno);
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EXPECT_EQ("", s); // s was cleared.
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}
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TEST(file, ReadFileToString_success) {
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std::string s("hello");
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ASSERT_TRUE(android::base::ReadFileToString("/proc/version", &s)) << errno;
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EXPECT_GT(s.length(), 6U);
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EXPECT_EQ('\n', s[s.length() - 1]);
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s[5] = 0;
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EXPECT_STREQ("Linux", s.c_str());
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}
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TEST(file, WriteStringToFile) {
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TemporaryFile tf;
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ASSERT_TRUE(tf.fd != -1);
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ASSERT_TRUE(android::base::WriteStringToFile("abc", tf.filename)) << errno;
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std::string s;
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ASSERT_TRUE(android::base::ReadFileToString(tf.filename, &s)) << errno;
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EXPECT_EQ("abc", s);
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}
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TEST(file, WriteStringToFile2) {
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TemporaryFile tf;
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ASSERT_TRUE(tf.fd != -1);
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ASSERT_TRUE(android::base::WriteStringToFile("abc", tf.filename, 0660,
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getuid(), getgid()))
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<< errno;
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struct stat sb;
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ASSERT_EQ(0, stat(tf.filename, &sb));
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ASSERT_EQ(0660U, static_cast<unsigned int>(sb.st_mode & ~S_IFMT));
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ASSERT_EQ(getuid(), sb.st_uid);
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ASSERT_EQ(getgid(), sb.st_gid);
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std::string s;
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ASSERT_TRUE(android::base::ReadFileToString(tf.filename, &s)) << errno;
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EXPECT_EQ("abc", s);
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}
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TEST(file, WriteStringToFd) {
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TemporaryFile tf;
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ASSERT_TRUE(tf.fd != -1);
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ASSERT_TRUE(android::base::WriteStringToFd("abc", tf.fd));
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ASSERT_EQ(0, lseek(tf.fd, 0, SEEK_SET)) << errno;
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std::string s;
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ASSERT_TRUE(android::base::ReadFdToString(tf.fd, &s)) << errno;
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EXPECT_EQ("abc", s);
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}
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TEST(file, ReadFully) {
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int fd = open("/proc/version", O_RDONLY);
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ASSERT_NE(-1, fd) << strerror(errno);
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char buf[1024];
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memset(buf, 0, sizeof(buf));
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ASSERT_TRUE(android::base::ReadFully(fd, buf, 5));
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ASSERT_STREQ("Linux", buf);
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ASSERT_EQ(0, lseek(fd, 0, SEEK_SET)) << strerror(errno);
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ASSERT_FALSE(android::base::ReadFully(fd, buf, sizeof(buf)));
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close(fd);
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}
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TEST(file, WriteFully) {
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TemporaryFile tf;
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ASSERT_TRUE(tf.fd != -1);
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ASSERT_TRUE(android::base::WriteFully(tf.fd, "abc", 3));
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std::string s;
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ASSERT_TRUE(android::base::ReadFileToString(tf.filename, &s)) << errno;
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EXPECT_EQ("abc", s);
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}
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