test/versiontest.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: versiontest.cc,v 1.5 2003/08/18 15:55:19 mdz 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 #include <system.h>
  18 #include <apt-pkg/error.h>
  19 #include <apt-pkg/version.h>
  20 #include <apt-pkg/debversion.h>
  21 #include <iostream>
  22 #include <fstream>
  23
  24 using namespace std;
  25
  26   static int verrevcmp(const char *val, const char *ref)
  27 {
  28    int vc, rc;
  29    long vl, rl;
  30    const char *vp, *rp;
  31
  32    if (!val)
  33       val = "";
  34    if (!ref)
  35       ref = "";
  36    for (;;)
  37    {
  38       vp = val;
  39       while (*vp && !isdigit(*vp))
  40          vp++;
  41       rp = ref;
  42       while (*rp && !isdigit(*rp))
  43          rp++;
  44       for (;;)
  45       {
  46          vc= val == vp ? 0 : *val++;
  47          rc= ref == rp ? 0 : *ref++;
  48          if (!rc && !vc)
  49             break;
  50          if (vc && !isalpha(vc))
  51             vc += 256; /* assumes ASCII character set */
  52          if (rc && !isalpha(rc))
  53             rc += 256;
  54          if (vc != rc)
  55             return vc - rc;
  56       }
  57       val = vp;
  58       ref = rp;
  59       vl = 0;
  60       if (isdigit(*vp))
  61          vl = strtol(val,(char**)&val,10);
  62       rl = 0;
  63       if (isdigit(*rp))
  64          rl = strtol(ref,(char**)&ref,10);
  65       if (vl != rl)
  66          return vl - rl;
  67       if (!*val && !*ref)
  68          return 0;
  69       if (!*val)
  70          return -1;
  71       if (!*ref)
  72          return +1;
  73    }
  74 }
  75
  76 #if 0
  77 static int verrevcmp(const char *val, const char *ref)
  78 {
  79    int vc, rc;
  80    long vl, rl;
  81    const char *vp, *rp;
  82
  83    if (!val) val= "";
  84    if (!ref) ref= "";
  85    for (;;)
  86    {
  87       vp= val;  while (*vp && !isdigit(*vp) && *vp != '~') vp++;
  88       rp= ref;  while (*rp && !isdigit(*rp) && *rp != '~') rp++;
  89       for (;;)
  90       {
  91          vc= val == vp ? 0 : *val++;
  92          rc= ref == rp ? 0 : *ref++;
  93          if (!rc && !vc) break;
  94          if (vc && !isalpha(vc)) vc += 256; /* assumes ASCII character set */
  95          if (rc && !isalpha(rc)) rc += 256;
  96          if (vc != rc) return vc - rc;
  97       }
  98
  99       val= vp;
 100       ref= rp;
 101       if (*vp == '~') val++;
 102       if (*rp == '~') ref++;
 103       vl=0;  if (isdigit(*val)) vl= strtol(val,(char**)&val,10);
 104       rl=0;  if (isdigit(*ref)) rl= strtol(ref,(char**)&ref,10);
 105       if (vl == 0 && rl == 0)
 106       {
 107          if (*vp == '~' && *rp != '~') return -1;
 108          if (*vp != '~' && *rp == '~') return +1;
 109       }
 110       if (*vp == '~')
 111          vl *= -1;
 112       if (*rp == '~')
 113          rl *= -1;
 114       if (vl != rl) return vl - rl;
 115       if (!*val && !*ref) return 0;
 116       if (!*val)
 117       {
 118          if (*ref == '~')
 119             return +1;
 120          else
 121             return -1;
 122       }
 123
 124       if (!*ref)
 125       {
 126          if (*val == '~')
 127             return -1;
 128          else
 129             return +1;
 130       }
 131    }
 132 }
 133 #endif
 134
 135 bool RunTest(const char *File)
 136 {
 137    ifstream F(File,ios::in);
 138    if (!F != 0)
 139       return false;
 140
 141    char Buffer[300];
 142    int CurLine = 0;
 143
 144    while (1)
 145    {
 146       F.getline(Buffer,sizeof(Buffer));
 147       CurLine++;
 148       if (F.eof() != 0)
 149          return true;
 150       if (!F != 0)
 151          return _error->Error("Line %u in %s is too long",CurLine,File);
 152
 153       // Comment
 154       if (Buffer[0] == '#' || Buffer[0] == 0)
 155          continue;
 156
 157       // First version
 158       char *I;
 159       char *Start = Buffer;
 160       for (I = Buffer; *I != 0 && *I != ' '; I++);
 161       string A(Start, I - Start);
 162
 163       if (*I == 0)
 164          return _error->Error("Invalid line %u",CurLine);
 165
 166       // Second version
 167       I++;
 168       Start = I;
 169       for (I = Start; *I != 0 && *I != ' '; I++);
 170       string B(Start,I - Start);
 171
 172       if (*I == 0 || I[1] == 0)
 173          return _error->Error("Invalid line %u",CurLine);
 174
 175       // Result
 176       I++;
 177       int Expected = atoi(I);
 178       int Res = debVS.CmpVersion(A.c_str(), B.c_str());
 179       int Res2 = verrevcmp(A.c_str(),B.c_str());
 180       cout << "'" << A << "' ? '" << B << "' = " << Res << " (= " << Expected << ") " << Res2 << endl;
 181
 182       if (Res < 0)
 183            Res = -1;
 184       else if (Res > 0)
 185            Res = 1;
 186
 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       // Check the reverse as well
 191       Expected = -1*Expected;
 192       Res = debVS.CmpVersion(B.c_str(), A.c_str());
 193       Res2 = verrevcmp(B.c_str(),A.c_str());
 194
 195       cout << "'" << B << "' ? '" << A << "' = " << Res << " (= " << Expected << ") " << Res2 << endl;
 196
 197       if (Res < 0)
 198            Res = -1;
 199       else if (Res > 0)
 200            Res = 1;
 201
 202       if (Res != Expected)
 203          _error->Error("Comparison failed on line %u. '%s' ? '%s' %i != %i",CurLine,B.c_str(),A.c_str(),Res,Expected);
 204    }
 205 }
 206
 207 int main(int argc, char *argv[])
 208 {
 209    if (argc <= 1)
 210    {
 211       cerr << "You must specify a test file" << endl;
 212       return 0;
 213    }
 214
 215    RunTest(argv[1]);
 216
 217    // Print any errors or warnings found
 218    if (_error->empty() == false)
 219    {
 220       string Err;
 221       while (_error->empty() == false)
 222       {
 223
 224          bool Type = _error->PopMessage(Err);
 225          if (Type == true)
 226             cout << "E: " << Err << endl;
 227          else
 228             cout << "W: " << Err << endl;
 229       }
 230
 231       return 0;
 232    }
 233 }