Annotation of embedaddon/pcre/pcre_scanner_unittest.cc, revision 1.1
1.1 ! misho 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: }
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