1 // Copyright (c) 2005, Google Inc.
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30 // Author: Greg J. Badros
32 // Unittest for scanner, especially GetNextComments and GetComments()
40 #include <string.h> /* for strchr */
45 #include "pcre_stringpiece.h"
46 #include "pcre_scanner.h"
48 #define FLAGS_unittest_stack_size 49152
50 // Dies with a fatal error if the two values are not equal.
51 #define CHECK_EQ(a, b) do { \
53 fprintf(stderr, "%s:%d: Check failed because %s != %s\n", \
54 __FILE__, __LINE__, #a, #b); \
60 using pcrecpp::StringPiece;
61 using pcrecpp::Scanner;
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";
69 const char *re = "(\\w+) = (\\d+);";
75 s.set_save_comments(true);
76 vector<StringPiece> comments;
78 s.Consume(re, &var, &number);
79 CHECK_EQ(var, "alpha");
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");
87 s.Consume(re, &var, &number);
88 CHECK_EQ(var, "bravo");
90 s.GetNextComments(&comments);
91 CHECK_EQ(comments.size(), 1);
92 CHECK_EQ(comments[0].as_string(), " // bravo is set here\n");
95 s.Consume(re, &var, &number);
96 CHECK_EQ(var, "gamma");
98 s.GetNextComments(&comments);
99 CHECK_EQ(comments.size(), 1);
100 CHECK_EQ(comments[0].as_string(), " /* and here is gamma */\n");
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");
110 s.GetComments(0, (int)(strchr(input, '/') - input), &comments);
111 CHECK_EQ(comments.size(), 0);
114 s.GetComments((int)(strchr(input, '/') - input - 1), sizeof(input),
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");
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");
129 static void TestBigComment() {
131 for (int i = 0; i < 1024; ++i) {
132 char buf[1024]; // definitely big enough
133 sprintf(buf, " # Comment %d\n", i);
136 input += "name = value;\n";
138 Scanner s(input.c_str());
139 s.SetSkipExpression("\\s+|#.*\n");
143 s.Consume("(\\w+) = (\\w+);", &name, &value);
144 CHECK_EQ(name, "name");
145 CHECK_EQ(value, "value");
148 // TODO: also test scanner and big-comment in a thread with a
151 int main(int argc, char** argv) {