559 lines
14 KiB
C++
559 lines
14 KiB
C++
// Tests of the C++ interface to POSIX functions that require mocks
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//
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// Copyright (c) 2012 - present, Victor Zverovich
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// All rights reserved.
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//
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// For the license information refer to format.h.
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// Disable bogus MSVC warnings.
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#ifndef _CRT_SECURE_NO_WARNINGS
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# define _CRT_SECURE_NO_WARNINGS
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#endif
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#include "posix-mock.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <climits>
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#include <memory>
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#include "../src/os.cc"
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#ifdef _WIN32
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# include <io.h>
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# undef max
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# undef ERROR
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#endif
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#include "gmock.h"
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#include "gtest-extra.h"
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#include "util.h"
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using fmt::buffered_file;
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using fmt::error_code;
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using testing::_;
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using testing::Return;
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using testing::StrEq;
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namespace {
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int open_count;
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int close_count;
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int dup_count;
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int dup2_count;
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int fdopen_count;
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int read_count;
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int write_count;
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int pipe_count;
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int fopen_count;
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int fclose_count;
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int fileno_count;
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size_t read_nbyte;
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size_t write_nbyte;
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bool sysconf_error;
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enum { NONE, MAX_SIZE, ERROR } fstat_sim;
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} // namespace
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#define EMULATE_EINTR(func, error_result) \
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if (func##_count != 0) { \
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if (func##_count++ != 3) { \
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errno = EINTR; \
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return error_result; \
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} \
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}
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#ifndef _MSC_VER
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int test::open(const char* path, int oflag, int mode) {
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EMULATE_EINTR(open, -1);
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return ::open(path, oflag, mode);
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}
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#else
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errno_t test::sopen_s(int* pfh, const char* filename, int oflag, int shflag,
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int pmode) {
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EMULATE_EINTR(open, EINTR);
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return _sopen_s(pfh, filename, oflag, shflag, pmode);
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}
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#endif
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#ifndef _WIN32
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long test::sysconf(int name) {
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long result = ::sysconf(name);
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if (!sysconf_error) return result;
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// Simulate an error.
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errno = EINVAL;
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return -1;
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}
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static off_t max_file_size() { return std::numeric_limits<off_t>::max(); }
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int test::fstat(int fd, struct stat* buf) {
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int result = ::fstat(fd, buf);
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if (fstat_sim == MAX_SIZE) buf->st_size = max_file_size();
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return result;
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}
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#else
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static LONGLONG max_file_size() { return std::numeric_limits<LONGLONG>::max(); }
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DWORD test::GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh) {
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if (fstat_sim == ERROR) {
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SetLastError(ERROR_ACCESS_DENIED);
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return INVALID_FILE_SIZE;
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}
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if (fstat_sim == MAX_SIZE) {
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DWORD max = std::numeric_limits<DWORD>::max();
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*lpFileSizeHigh = max >> 1;
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return max;
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}
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return ::GetFileSize(hFile, lpFileSizeHigh);
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}
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#endif
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int test::close(int fildes) {
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// Close the file first because close shouldn't be retried.
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int result = ::FMT_POSIX(close(fildes));
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EMULATE_EINTR(close, -1);
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return result;
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}
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int test::dup(int fildes) {
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EMULATE_EINTR(dup, -1);
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return ::FMT_POSIX(dup(fildes));
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}
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int test::dup2(int fildes, int fildes2) {
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EMULATE_EINTR(dup2, -1);
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return ::FMT_POSIX(dup2(fildes, fildes2));
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}
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FILE* test::fdopen(int fildes, const char* mode) {
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EMULATE_EINTR(fdopen, nullptr);
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return ::FMT_POSIX(fdopen(fildes, mode));
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}
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test::ssize_t test::read(int fildes, void* buf, test::size_t nbyte) {
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read_nbyte = nbyte;
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EMULATE_EINTR(read, -1);
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return ::FMT_POSIX(read(fildes, buf, nbyte));
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}
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test::ssize_t test::write(int fildes, const void* buf, test::size_t nbyte) {
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write_nbyte = nbyte;
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EMULATE_EINTR(write, -1);
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return ::FMT_POSIX(write(fildes, buf, nbyte));
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}
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#ifndef _WIN32
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int test::pipe(int fildes[2]) {
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EMULATE_EINTR(pipe, -1);
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return ::pipe(fildes);
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}
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#else
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int test::pipe(int* pfds, unsigned psize, int textmode) {
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EMULATE_EINTR(pipe, -1);
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return _pipe(pfds, psize, textmode);
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}
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#endif
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FILE* test::fopen(const char* filename, const char* mode) {
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EMULATE_EINTR(fopen, nullptr);
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return ::fopen(filename, mode);
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}
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int test::fclose(FILE* stream) {
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EMULATE_EINTR(fclose, EOF);
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return ::fclose(stream);
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}
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int(test::fileno)(FILE* stream) {
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EMULATE_EINTR(fileno, -1);
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#ifdef fileno
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return FMT_POSIX(fileno(stream));
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#else
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return ::FMT_POSIX(fileno(stream));
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#endif
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}
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#ifndef _WIN32
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# define EXPECT_RETRY(statement, func, message) \
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func##_count = 1; \
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statement; \
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EXPECT_EQ(4, func##_count); \
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func##_count = 0;
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# define EXPECT_EQ_POSIX(expected, actual) EXPECT_EQ(expected, actual)
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#else
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# define EXPECT_RETRY(statement, func, message) \
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func##_count = 1; \
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EXPECT_SYSTEM_ERROR(statement, EINTR, message); \
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func##_count = 0;
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# define EXPECT_EQ_POSIX(expected, actual)
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#endif
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#if FMT_USE_FCNTL
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static void write_file(fmt::cstring_view filename, fmt::string_view content) {
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fmt::buffered_file f(filename, "w");
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f.print("{}", content);
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}
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using fmt::file;
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TEST(UtilTest, GetPageSize) {
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# ifdef _WIN32
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SYSTEM_INFO si = {};
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GetSystemInfo(&si);
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EXPECT_EQ(si.dwPageSize, fmt::getpagesize());
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# else
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EXPECT_EQ(sysconf(_SC_PAGESIZE), fmt::getpagesize());
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sysconf_error = true;
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EXPECT_SYSTEM_ERROR(fmt::getpagesize(), EINVAL,
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"cannot get memory page size");
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sysconf_error = false;
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# endif
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}
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TEST(FileTest, OpenRetry) {
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write_file("temp", "there must be something here");
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std::unique_ptr<file> f{nullptr};
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EXPECT_RETRY(f.reset(new file("temp", file::RDONLY)), open,
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"cannot open file temp");
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# ifndef _WIN32
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char c = 0;
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f->read(&c, 1);
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# endif
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}
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TEST(FileTest, CloseNoRetryInDtor) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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std::unique_ptr<file> f(new file(std::move(read_end)));
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int saved_close_count = 0;
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EXPECT_WRITE(
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stderr,
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{
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close_count = 1;
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f.reset(nullptr);
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saved_close_count = close_count;
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close_count = 0;
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},
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format_system_error(EINTR, "cannot close file") + "\n");
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EXPECT_EQ(2, saved_close_count);
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}
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TEST(FileTest, CloseNoRetry) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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close_count = 1;
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EXPECT_SYSTEM_ERROR(read_end.close(), EINTR, "cannot close file");
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EXPECT_EQ(2, close_count);
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close_count = 0;
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}
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TEST(FileTest, Size) {
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std::string content = "top secret, destroy before reading";
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write_file("temp", content);
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file f("temp", file::RDONLY);
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EXPECT_GE(f.size(), 0);
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EXPECT_EQ(content.size(), static_cast<unsigned long long>(f.size()));
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# ifdef _WIN32
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fmt::memory_buffer message;
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fmt::detail::format_windows_error(message, ERROR_ACCESS_DENIED,
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"cannot get file size");
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fstat_sim = ERROR;
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EXPECT_THROW_MSG(f.size(), fmt::windows_error, fmt::to_string(message));
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fstat_sim = NONE;
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# else
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f.close();
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EXPECT_SYSTEM_ERROR(f.size(), EBADF, "cannot get file attributes");
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# endif
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}
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TEST(FileTest, MaxSize) {
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write_file("temp", "");
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file f("temp", file::RDONLY);
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fstat_sim = MAX_SIZE;
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EXPECT_GE(f.size(), 0);
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EXPECT_EQ(max_file_size(), f.size());
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fstat_sim = NONE;
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}
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TEST(FileTest, ReadRetry) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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enum { SIZE = 4 };
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write_end.write("test", SIZE);
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write_end.close();
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char buffer[SIZE];
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size_t count = 0;
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EXPECT_RETRY(count = read_end.read(buffer, SIZE), read,
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"cannot read from file");
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EXPECT_EQ_POSIX(static_cast<std::streamsize>(SIZE), count);
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}
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TEST(FileTest, WriteRetry) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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enum { SIZE = 4 };
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size_t count = 0;
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EXPECT_RETRY(count = write_end.write("test", SIZE), write,
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"cannot write to file");
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write_end.close();
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# ifndef _WIN32
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EXPECT_EQ(static_cast<std::streamsize>(SIZE), count);
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char buffer[SIZE + 1];
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read_end.read(buffer, SIZE);
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buffer[SIZE] = '\0';
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EXPECT_STREQ("test", buffer);
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# endif
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}
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# ifdef _WIN32
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TEST(FileTest, ConvertReadCount) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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char c;
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size_t size = UINT_MAX;
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if (sizeof(unsigned) != sizeof(size_t)) ++size;
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read_count = 1;
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read_nbyte = 0;
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EXPECT_THROW(read_end.read(&c, size), fmt::system_error);
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read_count = 0;
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EXPECT_EQ(UINT_MAX, read_nbyte);
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}
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TEST(FileTest, ConvertWriteCount) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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char c;
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size_t size = UINT_MAX;
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if (sizeof(unsigned) != sizeof(size_t)) ++size;
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write_count = 1;
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write_nbyte = 0;
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EXPECT_THROW(write_end.write(&c, size), fmt::system_error);
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write_count = 0;
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EXPECT_EQ(UINT_MAX, write_nbyte);
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}
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# endif
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TEST(FileTest, DupNoRetry) {
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int stdout_fd = FMT_POSIX(fileno(stdout));
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dup_count = 1;
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EXPECT_SYSTEM_ERROR(
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file::dup(stdout_fd), EINTR,
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fmt::format("cannot duplicate file descriptor {}", stdout_fd));
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dup_count = 0;
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}
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TEST(FileTest, Dup2Retry) {
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int stdout_fd = FMT_POSIX(fileno(stdout));
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file f1 = file::dup(stdout_fd), f2 = file::dup(stdout_fd);
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EXPECT_RETRY(f1.dup2(f2.descriptor()), dup2,
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fmt::format("cannot duplicate file descriptor {} to {}",
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f1.descriptor(), f2.descriptor()));
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}
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TEST(FileTest, Dup2NoExceptRetry) {
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int stdout_fd = FMT_POSIX(fileno(stdout));
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file f1 = file::dup(stdout_fd), f2 = file::dup(stdout_fd);
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error_code ec;
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dup2_count = 1;
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f1.dup2(f2.descriptor(), ec);
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# ifndef _WIN32
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EXPECT_EQ(4, dup2_count);
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# else
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EXPECT_EQ(EINTR, ec.get());
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# endif
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dup2_count = 0;
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}
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TEST(FileTest, PipeNoRetry) {
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file read_end, write_end;
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pipe_count = 1;
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EXPECT_SYSTEM_ERROR(file::pipe(read_end, write_end), EINTR,
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"cannot create pipe");
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pipe_count = 0;
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}
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TEST(FileTest, FdopenNoRetry) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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fdopen_count = 1;
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EXPECT_SYSTEM_ERROR(read_end.fdopen("r"), EINTR,
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"cannot associate stream with file descriptor");
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fdopen_count = 0;
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}
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TEST(BufferedFileTest, OpenRetry) {
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write_file("temp", "there must be something here");
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std::unique_ptr<buffered_file> f{nullptr};
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EXPECT_RETRY(f.reset(new buffered_file("temp", "r")), fopen,
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"cannot open file temp");
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# ifndef _WIN32
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char c = 0;
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if (fread(&c, 1, 1, f->get()) < 1)
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throw fmt::system_error(errno, "fread failed");
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# endif
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}
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TEST(BufferedFileTest, CloseNoRetryInDtor) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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std::unique_ptr<buffered_file> f(new buffered_file(read_end.fdopen("r")));
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int saved_fclose_count = 0;
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EXPECT_WRITE(
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stderr,
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{
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fclose_count = 1;
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f.reset(nullptr);
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saved_fclose_count = fclose_count;
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fclose_count = 0;
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},
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format_system_error(EINTR, "cannot close file") + "\n");
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EXPECT_EQ(2, saved_fclose_count);
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}
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TEST(BufferedFileTest, CloseNoRetry) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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buffered_file f = read_end.fdopen("r");
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fclose_count = 1;
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EXPECT_SYSTEM_ERROR(f.close(), EINTR, "cannot close file");
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EXPECT_EQ(2, fclose_count);
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fclose_count = 0;
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}
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TEST(BufferedFileTest, FilenoNoRetry) {
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file read_end, write_end;
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file::pipe(read_end, write_end);
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buffered_file f = read_end.fdopen("r");
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fileno_count = 1;
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EXPECT_SYSTEM_ERROR((f.fileno)(), EINTR, "cannot get file descriptor");
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EXPECT_EQ(2, fileno_count);
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fileno_count = 0;
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}
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#endif // FMT_USE_FCNTL
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struct test_mock {
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static test_mock* instance;
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} * test_mock::instance;
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TEST(ScopedMock, Scope) {
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{
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ScopedMock<test_mock> mock;
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EXPECT_EQ(&mock, test_mock::instance);
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test_mock& copy = mock;
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static_cast<void>(copy);
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}
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EXPECT_EQ(nullptr, test_mock::instance);
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}
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#ifdef FMT_LOCALE
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typedef fmt::locale::type locale_type;
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struct locale_mock {
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static locale_mock* instance;
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MOCK_METHOD3(newlocale, locale_type(int category_mask, const char* locale,
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locale_type base));
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MOCK_METHOD1(freelocale, void(locale_type locale));
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MOCK_METHOD3(strtod_l,
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double(const char* nptr, char** endptr, locale_type locale));
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} * locale_mock::instance;
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# ifdef _MSC_VER
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# pragma warning(push)
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# pragma warning(disable : 4273)
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# ifdef __clang__
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# pragma clang diagnostic push
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# pragma clang diagnostic ignored "-Winconsistent-dllimport"
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# endif
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_locale_t _create_locale(int category, const char* locale) {
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return locale_mock::instance->newlocale(category, locale, 0);
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}
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void _free_locale(_locale_t locale) {
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locale_mock::instance->freelocale(locale);
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}
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double _strtod_l(const char* nptr, char** endptr, _locale_t locale) {
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return locale_mock::instance->strtod_l(nptr, endptr, locale);
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}
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# ifdef __clang__
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# pragma clang diagnostic pop
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# endif
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# pragma warning(pop)
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# endif
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# if defined(__THROW) && FMT_GCC_VERSION > 0 && FMT_GCC_VERSION <= 408
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# define FMT_LOCALE_THROW __THROW
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# else
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# define FMT_LOCALE_THROW
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# endif
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# if defined(__APPLE__) || \
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(defined(__FreeBSD__) && __FreeBSD_version < 1200002)
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typedef int FreeLocaleResult;
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# else
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typedef void FreeLocaleResult;
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# endif
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FreeLocaleResult freelocale(locale_type locale) FMT_LOCALE_THROW {
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locale_mock::instance->freelocale(locale);
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return FreeLocaleResult();
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}
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double strtod_l(const char* nptr, char** endptr,
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locale_type locale) FMT_LOCALE_THROW {
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return locale_mock::instance->strtod_l(nptr, endptr, locale);
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}
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# undef FMT_LOCALE_THROW
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# ifndef _WIN32
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locale_t test::newlocale(int category_mask, const char* locale, locale_t base) {
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return locale_mock::instance->newlocale(category_mask, locale, base);
|
|
}
|
|
|
|
TEST(LocaleTest, LocaleMock) {
|
|
ScopedMock<locale_mock> mock;
|
|
locale_type locale = reinterpret_cast<locale_type>(11);
|
|
EXPECT_CALL(mock, newlocale(222, StrEq("foo"), locale));
|
|
FMT_SYSTEM(newlocale(222, "foo", locale));
|
|
}
|
|
# endif
|
|
|
|
TEST(LocaleTest, Locale) {
|
|
# ifndef LC_NUMERIC_MASK
|
|
enum { LC_NUMERIC_MASK = LC_NUMERIC };
|
|
# endif
|
|
ScopedMock<locale_mock> mock;
|
|
locale_type impl = reinterpret_cast<locale_type>(42);
|
|
EXPECT_CALL(mock, newlocale(LC_NUMERIC_MASK, StrEq("C"), nullptr))
|
|
.WillOnce(Return(impl));
|
|
EXPECT_CALL(mock, freelocale(impl));
|
|
fmt::locale loc;
|
|
EXPECT_EQ(impl, loc.get());
|
|
}
|
|
|
|
TEST(LocaleTest, Strtod) {
|
|
ScopedMock<locale_mock> mock;
|
|
EXPECT_CALL(mock, newlocale(_, _, _))
|
|
.WillOnce(Return(reinterpret_cast<locale_type>(42)));
|
|
EXPECT_CALL(mock, freelocale(_));
|
|
fmt::locale loc;
|
|
const char* str = "4.2";
|
|
char end = 'x';
|
|
EXPECT_CALL(mock, strtod_l(str, _, loc.get()))
|
|
.WillOnce(testing::DoAll(testing::SetArgPointee<1>(&end), Return(777)));
|
|
EXPECT_EQ(777, loc.strtod(str));
|
|
EXPECT_EQ(&end, str);
|
|
}
|
|
|
|
#endif // FMT_LOCALE
|