testFStream.cxx 3.31 KB
Newer Older
1 2
/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing#kwsys for details.  */
3 4 5
#include "kwsysPrivate.h"

#if defined(_MSC_VER)
6
#  pragma warning(disable : 4786)
7 8 9
#endif

#include KWSYS_HEADER(FStream.hxx)
10 11
#include <string.h>
#ifdef __BORLANDC__
12
#  include <mem.h> /* memcmp */
13
#endif
14 15 16 17

// Work-around CMake dependency scanning limitation.  This must
// duplicate the above list of headers.
#if 0
18
#  include "FStream.hxx.in"
19 20
#endif

21
#include <iostream>
22 23 24 25

static int testNoFile()
{
  kwsys::ifstream in_file("NoSuchFile.txt");
26
  if (in_file) {
27
    return 1;
28
  }
29 30 31 32

  return 0;
}

33 34 35
static const int num_test_files = 7;
static const int max_test_file_size = 45;

36 37 38 39
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,
40 41 42
  kwsys::FStream::BOM_UTF32BE
};

43 44 45 46 47 48 49 50
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 },
51 52
};

53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68
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 },
69 70 71 72 73
};

static int testBOM()
{
  // test various encodings in binary mode
74
  for (int i = 0; i < num_test_files; i++) {
75 76
    {
      kwsys::ofstream out("bom.txt", kwsys::ofstream::binary);
77
      out.write(reinterpret_cast<const char*>(expected_bom_data[i] + 1),
78
                *expected_bom_data[i]);
79
      out.write(reinterpret_cast<const char*>(file_data[i] + 1),
80
                file_data[i][0]);
81
    }
82 83 84

    kwsys::ifstream in("bom.txt", kwsys::ofstream::binary);
    kwsys::FStream::BOM bom = kwsys::FStream::ReadBOM(in);
85
    if (bom != expected_bom[i]) {
86
      std::cout << "Unexpected BOM " << i << std::endl;
87
      return 1;
88
    }
89
    char data[max_test_file_size];
90
    in.read(data, file_data[i][0]);
91
    if (!in.good()) {
92
      std::cout << "Unable to read data " << i << std::endl;
93
      return 1;
94
    }
95

96
    if (memcmp(data, file_data[i] + 1, file_data[i][0]) != 0) {
97
      std::cout << "Incorrect read data " << i << std::endl;
98 99
      return 1;
    }
100
  }
101 102 103 104

  return 0;
}

105
int testFStream(int, char* [])
106 107 108 109
{
  int ret = 0;

  ret |= testNoFile();
110
  ret |= testBOM();
111 112 113

  return ret;
}