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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing#kwsys for details. */
#include "kwsysPrivate.h"
#if defined(_MSC_VER)
# pragma warning(disable : 4786)
#endif
#include KWSYS_HEADER(FStream.hxx)
#include <cstring>
// Work-around CMake dependency scanning limitation. This must
// duplicate the above list of headers.
#if 0
# include "FStream.hxx.in"
#endif
#include <iostream>
static int testNoFile()
{
kwsys::ifstream in_file("NoSuchFile.txt");
if (in_file) {
return 1;
}
return 0;
}
static int const num_test_files = 7;
static int const max_test_file_size = 45;
static kwsys::FStream::BOM expected_bom[num_test_files] = {
kwsys::FStream::BOM_None, kwsys::FStream::BOM_None,
kwsys::FStream::BOM_UTF8, kwsys::FStream::BOM_UTF16LE,
kwsys::FStream::BOM_UTF16BE, kwsys::FStream::BOM_UTF32LE,
kwsys::FStream::BOM_UTF32BE
};
static unsigned char expected_bom_data[num_test_files][5] = {
{ 0 },
{ 0 },
{ 3, 0xEF, 0xBB, 0xBF },
{ 2, 0xFF, 0xFE },
{ 2, 0xFE, 0xFF },
{ 4, 0xFF, 0xFE, 0x00, 0x00 },
{ 4, 0x00, 0x00, 0xFE, 0xFF },
};
static unsigned char file_data[num_test_files][max_test_file_size] = {
{ 1, 'H' },
{ 11, 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' },
{ 11, 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' },
{ 22, 0x48, 0x00, 0x65, 0x00, 0x6C, 0x00, 0x6C, 0x00, 0x6F, 0x00, 0x20,
0x00, 0x57, 0x00, 0x6F, 0x00, 0x72, 0x00, 0x6C, 0x00, 0x64, 0x00 },
{ 22, 0x00, 0x48, 0x00, 0x65, 0x00, 0x6C, 0x00, 0x6C, 0x00, 0x6F, 0x00,
0x20, 0x00, 0x57, 0x00, 0x6F, 0x00, 0x72, 0x00, 0x6C, 0x00, 0x64 },
{ 44, 0x48, 0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x6C, 0x00, 0x00,
0x00, 0x6C, 0x00, 0x00, 0x00, 0x6F, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x00, 0x57, 0x00, 0x00, 0x00, 0x6F, 0x00, 0x00, 0x00, 0x72, 0x00, 0x00,
0x00, 0x6C, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00 },
{ 44, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00,
0x6C, 0x00, 0x00, 0x00, 0x6C, 0x00, 0x00, 0x00, 0x6F, 0x00, 0x00, 0x00,
0x20, 0x00, 0x00, 0x00, 0x57, 0x00, 0x00, 0x00, 0x6F, 0x00, 0x00, 0x00,
0x72, 0x00, 0x00, 0x00, 0x6C, 0x00, 0x00, 0x00, 0x64 },
};
static int testBOM()
{
// test various encodings in binary mode
for (int i = 0; i < num_test_files; i++) {
{
kwsys::ofstream out("bom.txt", kwsys::ofstream::binary);
out.write(reinterpret_cast<char const*>(expected_bom_data[i] + 1),
*expected_bom_data[i]);
out.write(reinterpret_cast<char const*>(file_data[i] + 1),
file_data[i][0]);
}
kwsys::ifstream in("bom.txt", kwsys::ofstream::binary);
kwsys::FStream::BOM bom = kwsys::FStream::ReadBOM(in);
if (bom != expected_bom[i]) {
std::cout << "Unexpected BOM " << i << std::endl;
return 1;
}
char data[max_test_file_size];
in.read(data, file_data[i][0]);
if (!in.good()) {
std::cout << "Unable to read data " << i << std::endl;
return 1;
}
if (memcmp(data, file_data[i] + 1, file_data[i][0]) != 0) {
std::cout << "Incorrect read data " << i << std::endl;
return 1;
}
}
return 0;
}
static int testBOMIO()
{
// test various encodings in binary mode
for (int i = 0; i < num_test_files; i++) {
kwsys::fstream f("bomio.txt",
kwsys::fstream::in | kwsys::fstream::out |
kwsys::fstream::binary | kwsys::fstream::trunc);
f.write(reinterpret_cast<char const*>(expected_bom_data[i] + 1),
*expected_bom_data[i]);
f.write(reinterpret_cast<char const*>(file_data[i] + 1), file_data[i][0]);
if (!f.good()) {
std::cout << "Unable to write data " << i << std::endl;
return 1;
}
f.seekp(0);
kwsys::FStream::BOM bom = kwsys::FStream::ReadBOM(f);
if (bom != expected_bom[i]) {
std::cout << "Unexpected BOM " << i << std::endl;
return 1;
}
char data[max_test_file_size];
f.read(data, file_data[i][0]);
if (!f.good()) {
std::cout << "Unable to read data " << i << std::endl;
return 1;
}
if (memcmp(data, file_data[i] + 1, file_data[i][0]) != 0) {
std::cout << "Incorrect read data " << i << std::endl;
return 1;
}
}
return 0;
}
int testFStream(int, char*[])
{
int ret = 0;
ret |= testNoFile();
ret |= testBOM();
ret |= testBOMIO();
return ret;
}
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