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30 // Author: Satoru Takabayashi
32 // Unit tests for functions in demangle.c.
34 #include "utilities.h"
39 #include "glog/logging.h"
41 #include "googletest.h"
44 GLOG_DEFINE_bool(demangle_filter, false,
45 "Run demangle_unittest in filter mode");
48 using namespace GOOGLE_NAMESPACE;
50 // A wrapper function for Demangle() to make the unit test simple.
51 static const char *DemangleIt(const char * const mangled) {
52 static char demangled[4096];
53 if (Demangle(mangled, demangled, sizeof(demangled))) {
60 // Test corner cases of bounary conditions.
61 TEST(Demangle, CornerCases) {
63 EXPECT_TRUE(Demangle("_Z6foobarv", tmp, sizeof(tmp)));
64 // sizeof("foobar()") == 9
65 EXPECT_STREQ("foobar()", tmp);
66 EXPECT_TRUE(Demangle("_Z6foobarv", tmp, 9));
67 EXPECT_STREQ("foobar()", tmp);
68 EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 8)); // Not enough.
69 EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 1));
70 EXPECT_FALSE(Demangle("_Z6foobarv", tmp, 0));
71 EXPECT_FALSE(Demangle("_Z6foobarv", NULL, 0)); // Should not cause SEGV.
74 TEST(Demangle, FromFile) {
75 string test_file = FLAGS_test_srcdir + "/src/demangle_unittest.txt";
76 ifstream f(test_file.c_str()); // The file should exist.
77 EXPECT_FALSE(f.fail());
80 while (getline(f, line)) {
81 // Lines start with '#' are considered as comments.
82 if (line.empty() || line[0] == '#') {
85 // Each line should contain a mangled name and a demangled name
86 // separated by '\t'. Example: "_Z3foo\tfoo"
87 string::size_type tab_pos = line.find('\t');
88 EXPECT_NE(string::npos, tab_pos);
89 string mangled = line.substr(0, tab_pos);
90 string demangled = line.substr(tab_pos + 1);
91 EXPECT_EQ(demangled, DemangleIt(mangled.c_str()));
95 int main(int argc, char **argv) {
96 #ifdef HAVE_LIB_GFLAGS
97 ParseCommandLineFlags(&argc, &argv, true);
99 InitGoogleTest(&argc, argv);
101 FLAGS_logtostderr = true;
102 InitGoogleLogging(argv[0]);
103 if (FLAGS_demangle_filter) {
104 // Read from cin and write to cout.
106 while (getline(cin, line, '\n')) {
107 cout << DemangleIt(line.c_str()) << endl;
110 } else if (argc > 1) {
111 cout << DemangleIt(argv[1]) << endl;
114 return RUN_ALL_TESTS();