NCBI C++ Toolkit Cross Reference

C++/src/util/regexp/pcre_stringpiece_unittest.cc

  1 // Copyright 2003 and onwards Google Inc.
  2 // Author: Sanjay Ghemawat
  3 
  4 #ifdef HAVE_CONFIG_H
  5 #include "config.h"
  6 #endif
  7 
  8 #include <stdio.h>
  9 #include <map>
 10 #include <algorithm>    // for make_pair
 11 
 12 #include "pcrecpp.h"
 13 #include "pcre_stringpiece.h"
 14 
 15 // CHECK dies with a fatal error if condition is not true.  It is *not*
 16 // controlled by NDEBUG, so the check will be executed regardless of
 17 // compilation mode.  Therefore, it is safe to do things like:
 18 //    CHECK(fp->Write(x) == 4)
 19 #define CHECK(condition) do {                           \
 20   if (!(condition)) {                                   \
 21     fprintf(stderr, "%s:%d: Check failed: %s\n",        \
 22             __FILE__, __LINE__, #condition);            \
 23     exit(1);                                            \
 24   }                                                     \
 25 } while (0)
 26 
 27 using std::map;
 28 using std::make_pair;
 29 using pcrecpp::StringPiece;
 30 
 31 static void CheckSTLComparator() {
 32   string s1("foo");
 33   string s2("bar");
 34   string s3("baz");
 35 
 36   StringPiece p1(s1);
 37   StringPiece p2(s2);
 38   StringPiece p3(s3);
 39 
 40   typedef map<StringPiece, int> TestMap;
 41   TestMap map;
 42 
 43   map.insert(make_pair(p1, 0));
 44   map.insert(make_pair(p2, 1));
 45   map.insert(make_pair(p3, 2));
 46   CHECK(map.size() == 3);
 47 
 48   TestMap::const_iterator iter = map.begin();
 49   CHECK(iter->second == 1);
 50   ++iter;
 51   CHECK(iter->second == 2);
 52   ++iter;
 53   CHECK(iter->second == 0);
 54   ++iter;
 55   CHECK(iter == map.end());
 56 
 57   TestMap::iterator new_iter = map.find("zot");
 58   CHECK(new_iter == map.end());
 59 
 60   new_iter = map.find("bar");
 61   CHECK(new_iter != map.end());
 62 
 63   map.erase(new_iter);
 64   CHECK(map.size() == 2);
 65 
 66   iter = map.begin();
 67   CHECK(iter->second == 2);
 68   ++iter;
 69   CHECK(iter->second == 0);
 70   ++iter;
 71   CHECK(iter == map.end());
 72 }
 73 
 74 static void CheckComparisonOperators() {
 75 #define CMP_Y(op, x, y)                                         \
 76   CHECK( (StringPiece((x)) op StringPiece((y))));               \
 77   CHECK( (StringPiece((x)).compare(StringPiece((y))) op 0))
 78 
 79 #define CMP_N(op, x, y)                                         \
 80   CHECK(!(StringPiece((x)) op StringPiece((y))));               \
 81   CHECK(!(StringPiece((x)).compare(StringPiece((y))) op 0))
 82 
 83   CMP_Y(==, "",   "");
 84   CMP_Y(==, "a",  "a");
 85   CMP_Y(==, "aa", "aa");
 86   CMP_N(==, "a",  "");
 87   CMP_N(==, "",   "a");
 88   CMP_N(==, "a",  "b");
 89   CMP_N(==, "a",  "aa");
 90   CMP_N(==, "aa", "a");
 91 
 92   CMP_N(!=, "",   "");
 93   CMP_N(!=, "a",  "a");
 94   CMP_N(!=, "aa", "aa");
 95   CMP_Y(!=, "a",  "");
 96   CMP_Y(!=, "",   "a");
 97   CMP_Y(!=, "a",  "b");
 98   CMP_Y(!=, "a",  "aa");
 99   CMP_Y(!=, "aa", "a");
100 
101   CMP_Y(<, "a",  "b");
102   CMP_Y(<, "a",  "aa");
103   CMP_Y(<, "aa", "b");
104   CMP_Y(<, "aa", "bb");
105   CMP_N(<, "a",  "a");
106   CMP_N(<, "b",  "a");
107   CMP_N(<, "aa", "a");
108   CMP_N(<, "b",  "aa");
109   CMP_N(<, "bb", "aa");
110 
111   CMP_Y(<=, "a",  "a");
112   CMP_Y(<=, "a",  "b");
113   CMP_Y(<=, "a",  "aa");
114   CMP_Y(<=, "aa", "b");
115   CMP_Y(<=, "aa", "bb");
116   CMP_N(<=, "b",  "a");
117   CMP_N(<=, "aa", "a");
118   CMP_N(<=, "b",  "aa");
119   CMP_N(<=, "bb", "aa");
120 
121   CMP_N(>=, "a",  "b");
122   CMP_N(>=, "a",  "aa");
123   CMP_N(>=, "aa", "b");
124   CMP_N(>=, "aa", "bb");
125   CMP_Y(>=, "a",  "a");
126   CMP_Y(>=, "b",  "a");
127   CMP_Y(>=, "aa", "a");
128   CMP_Y(>=, "b",  "aa");
129   CMP_Y(>=, "bb", "aa");
130 
131   CMP_N(>, "a",  "a");
132   CMP_N(>, "a",  "b");
133   CMP_N(>, "a",  "aa");
134   CMP_N(>, "aa", "b");
135   CMP_N(>, "aa", "bb");
136   CMP_Y(>, "b",  "a");
137   CMP_Y(>, "aa", "a");
138   CMP_Y(>, "b",  "aa");
139   CMP_Y(>, "bb", "aa");
140 
141 #undef CMP_Y
142 #undef CMP_N
143 }
144 
145 int main(int argc, char** argv) {
146   CheckComparisonOperators();
147   CheckSTLComparator();
148 
149   printf("OK\n");
150   return 0;
151 }
152
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