test/versiontest.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: versiontest.cc,v 1.1 1998/11/26 23:29:20 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 #include <system.h>
  18 #include <apt-pkg/error.h>
  19 #include <apt-pkg/version.h>
  20 #include <iostream.h>
  21 #include <fstream.h>
  22
  23 static int verrevcmp(const char *val, const char *ref)
  24 {
  25    int vc, rc;
  26    long vl, rl;
  27    const char *vp, *rp;
  28
  29    if (!val)
  30       val = "";
  31    if (!ref)
  32       ref = "";
  33    for (;;)
  34    {
  35       vp = val;
  36       while (*vp && !isdigit(*vp))
  37          vp++;
  38       rp = ref;
  39       while (*rp && !isdigit(*rp))
  40          rp++;
  41       for (;;)
  42       {
  43          vc= val == vp ? 0 : *val++;
  44          rc= ref == rp ? 0 : *ref++;
  45          if (!rc && !vc)
  46             break;
  47          if (vc && !isalpha(vc))
  48             vc += 256; /* assumes ASCII character set */
  49          if (rc && !isalpha(rc))
  50             rc += 256;
  51          if (vc != rc)
  52             return vc - rc;
  53       }
  54       val = vp;
  55       ref = rp;
  56       vl = 0;
  57       if (isdigit(*vp))
  58          vl = strtol(val,(char**)&val,10);
  59       rl = 0;
  60       if (isdigit(*rp))
  61          rl = strtol(ref,(char**)&ref,10);
  62       if (vl != rl)
  63          return vl - rl;
  64       if (!*val && !*ref)
  65          return 0;
  66       if (!*val)
  67          return -1;
  68       if (!*ref)
  69          return +1;
  70    }
  71 }
  72
  73 #if 0
  74 static int verrevcmp(const char *val, const char *ref)
  75 {
  76    int vc, rc;
  77    long vl, rl;
  78    const char *vp, *rp;
  79
  80    if (!val) val= "";
  81    if (!ref) ref= "";
  82    for (;;)
  83    {
  84       vp= val;  while (*vp && !isdigit(*vp) && *vp != '~') vp++;
  85       rp= ref;  while (*rp && !isdigit(*rp) && *rp != '~') rp++;
  86       for (;;)
  87       {
  88          vc= val == vp ? 0 : *val++;
  89          rc= ref == rp ? 0 : *ref++;
  90          if (!rc && !vc) break;
  91          if (vc && !isalpha(vc)) vc += 256; /* assumes ASCII character set */
  92          if (rc && !isalpha(rc)) rc += 256;
  93          if (vc != rc) return vc - rc;
  94       }
  95
  96       val= vp;
  97       ref= rp;
  98       if (*vp == '~') val++;
  99       if (*rp == '~') ref++;
 100       vl=0;  if (isdigit(*val)) vl= strtol(val,(char**)&val,10);
 101       rl=0;  if (isdigit(*ref)) rl= strtol(ref,(char**)&ref,10);
 102       if (vl == 0 && rl == 0)
 103       {
 104          if (*vp == '~' && *rp != '~') return -1;
 105          if (*vp != '~' && *rp == '~') return +1;
 106       }
 107       if (*vp == '~')
 108          vl *= -1;
 109       if (*rp == '~')
 110          rl *= -1;
 111       if (vl != rl) return vl - rl;
 112       if (!*val && !*ref) return 0;
 113       if (!*val)
 114       {
 115          if (*ref == '~')
 116             return +1;
 117          else
 118             return -1;
 119       }
 120
 121       if (!*ref)
 122       {
 123          if (*val == '~')
 124             return -1;
 125          else
 126             return +1;
 127       }
 128    }
 129 }
 130 #endif
 131
 132 bool RunTest(const char *File)
 133 {
 134    ifstream F(File,ios::in | ios::nocreate);
 135    if (!F != 0)
 136       return false;
 137
 138    char Buffer[300];
 139    int CurLine = 0;
 140
 141    while (1)
 142    {
 143       F.getline(Buffer,sizeof(Buffer));
 144       CurLine++;
 145       if (F.eof() != 0)
 146          return true;
 147       if (!F != 0)
 148          return _error->Error("Line %u in %s is too long",CurLine,File);
 149
 150       // Comment
 151       if (Buffer[0] == '#' || Buffer[0] == 0)
 152          continue;
 153
 154       // First version
 155       char *I;
 156       char *Start = Buffer;
 157       for (I = Buffer; *I != 0 && *I != ' '; I++);
 158       string A(Start, I - Start);
 159
 160       if (*I == 0)
 161          return _error->Error("Invalid line %u",CurLine);
 162
 163       // Second version
 164       I++;
 165       Start = I;
 166       for (I = Start; *I != 0 && *I != ' '; I++);
 167       string B(Start,I - Start);
 168
 169       if (*I == 0 || I[1] == 0)
 170          return _error->Error("Invalid line %u",CurLine);
 171
 172       // Result
 173       I++;
 174       int Expected = atoi(I);
 175       int Res = pkgVersionCompare(A.c_str(),B.c_str());
 176       int Res2 = verrevcmp(A.c_str(),B.c_str());
 177       cout << "'" << A << "' ? '" << B << "' = " << Res << " (= " << Expected << ") " << Res2 << endl;
 178       if (Res != Expected)
 179          _error->Error("Comparison failed on line %u. '%s' ? '%s' %i != %i",CurLine,A.c_str(),B.c_str(),Res,Expected);
 180
 181       // Check the reverse as well
 182       Expected = -1*Expected;
 183       Res = pkgVersionCompare(B.c_str(),A.c_str());
 184       Res2 = verrevcmp(B.c_str(),A.c_str());
 185       cout << "'" << B << "' ? '" << A << "' = " << Res << " (= " << Expected << ") " << Res2 << endl;
 186       if (Res != Expected)
 187          _error->Error("Comparison failed on line %u. '%s' ? '%s' %i != %i",CurLine,A.c_str(),B.c_str(),Res,Expected);
 188    }
 189 }
 190
 191 int main(int argc, char *argv[])
 192 {
 193    if (argc <= 1)
 194    {
 195       cerr << "You must specify a test file" << endl;
 196       return 0;
 197    }
 198
 199    RunTest(argv[1]);
 200
 201    // Print any errors or warnings found
 202    if (_error->empty() == false)
 203    {
 204       string Err;
 205       while (_error->empty() == false)
 206       {
 207
 208          bool Type = _error->PopMessage(Err);
 209          if (Type == true)
 210             cout << "E: " << Err << endl;
 211          else
 212             cout << "W: " << Err << endl;
 213       }
 214
 215       return 0;
 216    }
 217 }