Tristan Matthews | 0461646 | 2013-11-14 16:09:34 -0500 | [diff] [blame] | 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.h> /* for strchr */ |
| 41 | #include <string> |
| 42 | #include <vector> |
| 43 | |
| 44 | #include "pcrecpp.h" |
| 45 | #include "pcre_stringpiece.h" |
| 46 | #include "pcre_scanner.h" |
| 47 | |
| 48 | #define FLAGS_unittest_stack_size 49152 |
| 49 | |
| 50 | // Dies with a fatal error if the two values are not equal. |
| 51 | #define CHECK_EQ(a, b) do { \ |
| 52 | if ( (a) != (b) ) { \ |
| 53 | fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \ |
| 54 | __FILE__, __LINE__, #a, #b); \ |
| 55 | exit(1); \ |
| 56 | } \ |
| 57 | } while (0) |
| 58 | |
| 59 | using std::vector; |
| 60 | using pcrecpp::StringPiece; |
| 61 | using pcrecpp::Scanner; |
| 62 | |
| 63 | static void TestScanner() { |
| 64 | const char input[] = "\n" |
| 65 | "alpha = 1; // this sets alpha\n" |
| 66 | "bravo = 2; // bravo is set here\n" |
| 67 | "gamma = 33; /* and here is gamma */\n"; |
| 68 | |
| 69 | const char *re = "(\\w+) = (\\d+);"; |
| 70 | |
| 71 | Scanner s(input); |
| 72 | string var; |
| 73 | int number; |
| 74 | s.SkipCXXComments(); |
| 75 | s.set_save_comments(true); |
| 76 | vector<StringPiece> comments; |
| 77 | |
| 78 | s.Consume(re, &var, &number); |
| 79 | CHECK_EQ(var, "alpha"); |
| 80 | CHECK_EQ(number, 1); |
| 81 | CHECK_EQ(s.LineNumber(), 3); |
| 82 | s.GetNextComments(&comments); |
| 83 | CHECK_EQ(comments.size(), 1); |
| 84 | CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); |
| 85 | comments.resize(0); |
| 86 | |
| 87 | s.Consume(re, &var, &number); |
| 88 | CHECK_EQ(var, "bravo"); |
| 89 | CHECK_EQ(number, 2); |
| 90 | s.GetNextComments(&comments); |
| 91 | CHECK_EQ(comments.size(), 1); |
| 92 | CHECK_EQ(comments[0].as_string(), " // bravo is set here\n"); |
| 93 | comments.resize(0); |
| 94 | |
| 95 | s.Consume(re, &var, &number); |
| 96 | CHECK_EQ(var, "gamma"); |
| 97 | CHECK_EQ(number, 33); |
| 98 | s.GetNextComments(&comments); |
| 99 | CHECK_EQ(comments.size(), 1); |
| 100 | CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n"); |
| 101 | comments.resize(0); |
| 102 | |
| 103 | s.GetComments(0, sizeof(input), &comments); |
| 104 | CHECK_EQ(comments.size(), 3); |
| 105 | CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); |
| 106 | CHECK_EQ(comments[1].as_string(), " // bravo is set here\n"); |
| 107 | CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n"); |
| 108 | comments.resize(0); |
| 109 | |
| 110 | s.GetComments(0, (int)(strchr(input, '/') - input), &comments); |
| 111 | CHECK_EQ(comments.size(), 0); |
| 112 | comments.resize(0); |
| 113 | |
| 114 | s.GetComments((int)(strchr(input, '/') - input - 1), sizeof(input), |
| 115 | &comments); |
| 116 | CHECK_EQ(comments.size(), 3); |
| 117 | CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); |
| 118 | CHECK_EQ(comments[1].as_string(), " // bravo is set here\n"); |
| 119 | CHECK_EQ(comments[2].as_string(), " /* and here is gamma */\n"); |
| 120 | comments.resize(0); |
| 121 | |
| 122 | s.GetComments((int)(strchr(input, '/') - input - 1), |
| 123 | (int)(strchr(input + 1, '\n') - input + 1), &comments); |
| 124 | CHECK_EQ(comments.size(), 1); |
| 125 | CHECK_EQ(comments[0].as_string(), " // this sets alpha\n"); |
| 126 | comments.resize(0); |
| 127 | } |
| 128 | |
| 129 | static void TestBigComment() { |
| 130 | string input; |
| 131 | for (int i = 0; i < 1024; ++i) { |
| 132 | char buf[1024]; // definitely big enough |
| 133 | sprintf(buf, " # Comment %d\n", i); |
| 134 | input += buf; |
| 135 | } |
| 136 | input += "name = value;\n"; |
| 137 | |
| 138 | Scanner s(input.c_str()); |
| 139 | s.SetSkipExpression("\\s+|#.*\n"); |
| 140 | |
| 141 | string name; |
| 142 | string value; |
| 143 | s.Consume("(\\w+) = (\\w+);", &name, &value); |
| 144 | CHECK_EQ(name, "name"); |
| 145 | CHECK_EQ(value, "value"); |
| 146 | } |
| 147 | |
| 148 | // TODO: also test scanner and big-comment in a thread with a |
| 149 | // small stack size |
| 150 | |
| 151 | int main(int argc, char** argv) { |
| 152 | TestScanner(); |
| 153 | TestBigComment(); |
| 154 | |
| 155 | // Done |
| 156 | printf("OK\n"); |
| 157 | |
| 158 | return 0; |
| 159 | } |