test/versiontest.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: versiontest.cc,v 1.3 2002/03/26 07:38:58 jgg Exp $
   4 /* ######################################################################
   5
   6    Version Test - Simple program to run through a file and comare versions.
   7
   8    Each version is compared and the result is checked against an expected
   9    result in the file. The format of the file is
  10        a b Res
  11    Where Res is -1, 1, 0. dpkg -D=1 --compare-versions a "<" b can be
  12    used to determine what Res should be. # at the start of the line
  13    is a comment and blank lines are skipped
  14
  15    ##################################################################### */
  16                                                                         /*}}}*/
  17 #define APT_COMPATIBILITY 1
  18 #include <system.h>
  19 #include <apt-pkg/error.h>
  20 #include <apt-pkg/version.h>
  21 #include <iostream>
  22 #include <fstream>
  23
  24   static int verrevcmp(const char *val, const char *ref)
  25 {
  26    int vc, rc;
  27    long vl, rl;
  28    const char *vp, *rp;
  29
  30    if (!val)
  31       val = "";
  32    if (!ref)
  33       ref = "";
  34    for (;;)
  35    {
  36       vp = val;
  37       while (*vp && !isdigit(*vp))
  38          vp++;
  39       rp = ref;
  40       while (*rp && !isdigit(*rp))
  41          rp++;
  42       for (;;)
  43       {
  44          vc= val == vp ? 0 : *val++;
  45          rc= ref == rp ? 0 : *ref++;
  46          if (!rc && !vc)
  47             break;
  48          if (vc && !isalpha(vc))
  49             vc += 256; /* assumes ASCII character set */
  50          if (rc && !isalpha(rc))
  51             rc += 256;
  52          if (vc != rc)
  53             return vc - rc;
  54       }
  55       val = vp;
  56       ref = rp;
  57       vl = 0;
  58       if (isdigit(*vp))
  59          vl = strtol(val,(char**)&val,10);
  60       rl = 0;
  61       if (isdigit(*rp))
  62          rl = strtol(ref,(char**)&ref,10);
  63       if (vl != rl)
  64          return vl - rl;
  65       if (!*val && !*ref)
  66          return 0;
  67       if (!*val)
  68          return -1;
  69       if (!*ref)
  70          return +1;
  71    }
  72 }
  73
  74 #if 0
  75 static int verrevcmp(const char *val, const char *ref)
  76 {
  77    int vc, rc;
  78    long vl, rl;
  79    const char *vp, *rp;
  80
  81    if (!val) val= "";
  82    if (!ref) ref= "";
  83    for (;;)
  84    {
  85       vp= val;  while (*vp && !isdigit(*vp) && *vp != '~') vp++;
  86       rp= ref;  while (*rp && !isdigit(*rp) && *rp != '~') rp++;
  87       for (;;)
  88       {
  89          vc= val == vp ? 0 : *val++;
  90          rc= ref == rp ? 0 : *ref++;
  91          if (!rc && !vc) break;
  92          if (vc && !isalpha(vc)) vc += 256; /* assumes ASCII character set */
  93          if (rc && !isalpha(rc)) rc += 256;
  94          if (vc != rc) return vc - rc;
  95       }
  96
  97       val= vp;
  98       ref= rp;
  99       if (*vp == '~') val++;
 100       if (*rp == '~') ref++;
 101       vl=0;  if (isdigit(*val)) vl= strtol(val,(char**)&val,10);
 102       rl=0;  if (isdigit(*ref)) rl= strtol(ref,(char**)&ref,10);
 103       if (vl == 0 && rl == 0)
 104       {
 105          if (*vp == '~' && *rp != '~') return -1;
 106          if (*vp != '~' && *rp == '~') return +1;
 107       }
 108       if (*vp == '~')
 109          vl *= -1;
 110       if (*rp == '~')
 111          rl *= -1;
 112       if (vl != rl) return vl - rl;
 113       if (!*val && !*ref) return 0;
 114       if (!*val)
 115       {
 116          if (*ref == '~')
 117             return +1;
 118          else
 119             return -1;
 120       }
 121
 122       if (!*ref)
 123       {
 124          if (*val == '~')
 125             return -1;
 126          else
 127             return +1;
 128       }
 129    }
 130 }
 131 #endif
 132
 133 bool RunTest(const char *File)
 134 {
 135    ifstream F(File,ios::in | ios::nocreate);
 136    if (!F != 0)
 137       return false;
 138
 139    char Buffer[300];
 140    int CurLine = 0;
 141
 142    while (1)
 143    {
 144       F.getline(Buffer,sizeof(Buffer));
 145       CurLine++;
 146       if (F.eof() != 0)
 147          return true;
 148       if (!F != 0)
 149          return _error->Error("Line %u in %s is too long",CurLine,File);
 150
 151       // Comment
 152       if (Buffer[0] == '#' || Buffer[0] == 0)
 153          continue;
 154
 155       // First version
 156       char *I;
 157       char *Start = Buffer;
 158       for (I = Buffer; *I != 0 && *I != ' '; I++);
 159       string A(Start, I - Start);
 160
 161       if (*I == 0)
 162          return _error->Error("Invalid line %u",CurLine);
 163
 164       // Second version
 165       I++;
 166       Start = I;
 167       for (I = Start; *I != 0 && *I != ' '; I++);
 168       string B(Start,I - Start);
 169
 170       if (*I == 0 || I[1] == 0)
 171          return _error->Error("Invalid line %u",CurLine);
 172
 173       // Result
 174       I++;
 175       int Expected = atoi(I);
 176       int Res = pkgVersionCompare(A.c_str(),B.c_str());
 177       int Res2 = verrevcmp(A.c_str(),B.c_str());
 178       cout << "'" << A << "' ? '" << B << "' = " << Res << " (= " << Expected << ") " << Res2 << endl;
 179       if (Res != Expected)
 180          _error->Error("Comparison failed on line %u. '%s' ? '%s' %i != %i",CurLine,A.c_str(),B.c_str(),Res,Expected);
 181
 182       // Check the reverse as well
 183       Expected = -1*Expected;
 184       Res = pkgVersionCompare(B.c_str(),A.c_str());
 185       Res2 = verrevcmp(B.c_str(),A.c_str());
 186       cout << "'" << B << "' ? '" << A << "' = " << Res << " (= " << Expected << ") " << Res2 << endl;
 187       if (Res != Expected)
 188          _error->Error("Comparison failed on line %u. '%s' ? '%s' %i != %i",CurLine,A.c_str(),B.c_str(),Res,Expected);
 189    }
 190 }
 191
 192 int main(int argc, char *argv[])
 193 {
 194    if (argc <= 1)
 195    {
 196       cerr << "You must specify a test file" << endl;
 197       return 0;
 198    }
 199
 200    RunTest(argv[1]);
 201
 202    // Print any errors or warnings found
 203    if (_error->empty() == false)
 204    {
 205       string Err;
 206       while (_error->empty() == false)
 207       {
 208
 209          bool Type = _error->PopMessage(Err);
 210          if (Type == true)
 211             cout << "E: " << Err << endl;
 212          else
 213             cout << "W: " << Err << endl;
 214       }
 215
 216       return 0;
 217    }
 218 }