1 // Copyright (c) 2005, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 // 30 // Author: Greg J. Badros 31 // 32 // Unittest for scanner, especially GetNextComments and GetComments() 33 // functionality. 34 35 #ifdef HAVE_CONFIG_H 36 #include "config.h" 37 #endif 38 39 #include <stdio.h> 40 #include <string> 41 #include <vector> 42 43 #include "pcrecpp.h" 44 #include "pcre_stringpiece.h" 45 #include "pcre_scanner.h" 46 47 #define FLAGS_unittest_stack_size 49152 48 49 // Dies with a fatal error if the two values are not equal. 50 #define CHECK_EQ(a, b) do { \ 51 if ( (a) != (b) ) { \ 52 fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \ 53 __FILE__, __LINE__, #a, #b); \ 54 exit(1); \ 55 } \ 56 } while (0) 57 58 using std::vector; 59 using pcrecpp::StringPiece; 60 using pcrecpp::Scanner; 61 62 static void TestScanner() { 63 const char input[] = "\n" 64 "alpha = 1; // this sets alpha\n" 65 "bravo = 2; // bravo is set here\n" 66 "gamma = 33; /* and here is gamma */\n"; 67 68 const char *re = "(\\w+) = (\\d+);"; 69 70 Scanner s(input); 71 string var; 72 int number; 73 s.SkipCXXComments(); 74 s.set_save_comments(true); 75 vector<StringPiece> comments; 76 77 s.Consume(re, &var, &number); 78 CHECK_EQ(var, "alpha"); 79 CHECK_EQ(number, 1); 80 CHECK_EQ(s.LineNumber(), 3); 81 s.GetNextComments(&comments); 82 CHECK_EQ(comments.size(), 1); 83 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); 84 comments.resize(0); 85 86 s.Consume(re, &var, &number); 87 CHECK_EQ(var, "bravo"); 88 CHECK_EQ(number, 2); 89 s.GetNextComments(&comments); 90 CHECK_EQ(comments.size(), 1); 91 CHECK_EQ(comments[0].as_string(), " // bravo is set here\n"); 92 comments.resize(0); 93 94 s.Consume(re, &var, &number); 95 CHECK_EQ(var, "gamma"); 96 CHECK_EQ(number, 33); 97 s.GetNextComments(&comments); 98 CHECK_EQ(comments.size(), 1); 99 CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n"); 100 comments.resize(0); 101 102 s.GetComments(0, sizeof(input), &comments); 103 CHECK_EQ(comments.size(), 3); 104 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); 105 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n"); 106 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n"); 107 comments.resize(0); 108 109 s.GetComments(0, (int)(strchr(input, '/') - input), &comments); 110 CHECK_EQ(comments.size(), 0); 111 comments.resize(0); 112 113 s.GetComments((int)(strchr(input, '/') - input - 1), sizeof(input), 114 &comments); 115 CHECK_EQ(comments.size(), 3); 116 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); 117 CHECK_EQ(comments[1].as_string(), " // bravo is set here\n"); 118 CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n"); 119 comments.resize(0); 120 121 s.GetComments((int)(strchr(input, '/') - input - 1), 122 (int)(strchr(input + 1, '\n') - input + 1), &comments); 123 CHECK_EQ(comments.size(), 1); 124 CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); 125 comments.resize(0); 126 } 127 128 static void TestBigComment() { 129 string input; 130 for (int i = 0; i < 1024; ++i) { 131 char buf[1024]; // definitely big enough 132 sprintf(buf, " # Comment %d\n", i); 133 input += buf; 134 } 135 input += "name = value;\n"; 136 137 Scanner s(input.c_str()); 138 s.SetSkipExpression("\\s+|#.*\n"); 139 140 string name; 141 string value; 142 s.Consume("(\\w+) = (\\w+);", &name, &value); 143 CHECK_EQ(name, "name"); 144 CHECK_EQ(value, "value"); 145 } 146 147 // TODO: also test scanner and big-comment in a thread with a 148 // small stack size 149 150 int main(int argc, char** argv) { 151 TestScanner(); 152 TestBigComment(); 153 154 // Done 155 printf("OK\n"); 156 157 return 0; 158 } 159
