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Diffstat (limited to 'third_party/glog/src/demangle_unittest.cc')
| -rw-r--r-- | third_party/glog/src/demangle_unittest.cc | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/third_party/glog/src/demangle_unittest.cc b/third_party/glog/src/demangle_unittest.cc new file mode 100644 index 0000000000..be483411f1 --- /dev/null +++ b/third_party/glog/src/demangle_unittest.cc @@ -0,0 +1,168 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Author: Satoru Takabayashi +// +// Unit tests for functions in demangle.c. + +#include "utilities.h" + +#include <iostream> +#include <fstream> +#include <string> +#include "glog/logging.h" +#include "demangle.h" +#include "googletest.h" +#include "config.h" + +#ifdef HAVE_LIB_GFLAGS +#include <gflags/gflags.h> +using namespace GFLAGS_NAMESPACE; +#endif + +GLOG_DEFINE_bool(demangle_filter, false, + "Run demangle_unittest in filter mode"); + +using namespace std; +using namespace GOOGLE_NAMESPACE; + +// A wrapper function for Demangle() to make the unit test simple. +static const char *DemangleIt(const char * const mangled) { + static char demangled[4096]; + if (Demangle(mangled, demangled, sizeof(demangled))) { + return demangled; + } else { + return mangled; + } +} + +#if defined(OS_WINDOWS) + +TEST(Demangle, Windows) { + EXPECT_STREQ( + "public: static void __cdecl Foo::func(int)", + DemangleIt("?func@Foo@@SAXH@Z")); + EXPECT_STREQ( + "public: static void __cdecl Foo::func(int)", + DemangleIt("@ILT+1105(?func@Foo@@SAXH@Z)")); + EXPECT_STREQ( + "int __cdecl foobarArray(int * const)", + DemangleIt("?foobarArray@@YAHQAH@Z")); +} + +#else + +// Test corner cases of bounary conditions. +TEST(Demangle, CornerCases) { + const size_t size = 10; + char tmp[size] = { 0 }; + const char *demangled = "foobar()"; + const char *mangled = "_Z6foobarv"; + EXPECT_TRUE(Demangle(mangled, tmp, sizeof(tmp))); + // sizeof("foobar()") == size - 1 + EXPECT_STREQ(demangled, tmp); + EXPECT_TRUE(Demangle(mangled, tmp, size - 1)); + EXPECT_STREQ(demangled, tmp); + EXPECT_FALSE(Demangle(mangled, tmp, size - 2)); // Not enough. + EXPECT_FALSE(Demangle(mangled, tmp, 1)); + EXPECT_FALSE(Demangle(mangled, tmp, 0)); + EXPECT_FALSE(Demangle(mangled, NULL, 0)); // Should not cause SEGV. +} + +// Test handling of functions suffixed with .clone.N, which is used by GCC +// 4.5.x, and .constprop.N and .isra.N, which are used by GCC 4.6.x. These +// suffixes are used to indicate functions which have been cloned during +// optimization. We ignore these suffixes. +TEST(Demangle, Clones) { + char tmp[20]; + EXPECT_TRUE(Demangle("_ZL3Foov", tmp, sizeof(tmp))); + EXPECT_STREQ("Foo()", tmp); + EXPECT_TRUE(Demangle("_ZL3Foov.clone.3", tmp, sizeof(tmp))); + EXPECT_STREQ("Foo()", tmp); + EXPECT_TRUE(Demangle("_ZL3Foov.constprop.80", tmp, sizeof(tmp))); + EXPECT_STREQ("Foo()", tmp); + EXPECT_TRUE(Demangle("_ZL3Foov.isra.18", tmp, sizeof(tmp))); + EXPECT_STREQ("Foo()", tmp); + EXPECT_TRUE(Demangle("_ZL3Foov.isra.2.constprop.18", tmp, sizeof(tmp))); + EXPECT_STREQ("Foo()", tmp); + // Invalid (truncated), should not demangle. + EXPECT_FALSE(Demangle("_ZL3Foov.clo", tmp, sizeof(tmp))); + // Invalid (.clone. not followed by number), should not demangle. + EXPECT_FALSE(Demangle("_ZL3Foov.clone.", tmp, sizeof(tmp))); + // Invalid (.clone. followed by non-number), should not demangle. + EXPECT_FALSE(Demangle("_ZL3Foov.clone.foo", tmp, sizeof(tmp))); + // Invalid (.constprop. not followed by number), should not demangle. + EXPECT_FALSE(Demangle("_ZL3Foov.isra.2.constprop.", tmp, sizeof(tmp))); +} + +TEST(Demangle, FromFile) { + string test_file = FLAGS_test_srcdir + "/src/demangle_unittest.txt"; + ifstream f(test_file.c_str()); // The file should exist. + EXPECT_FALSE(f.fail()); + + string line; + while (getline(f, line)) { + // Lines start with '#' are considered as comments. + if (line.empty() || line[0] == '#') { + continue; + } + // Each line should contain a mangled name and a demangled name + // separated by '\t'. Example: "_Z3foo\tfoo" + string::size_type tab_pos = line.find('\t'); + EXPECT_NE(string::npos, tab_pos); + string mangled = line.substr(0, tab_pos); + string demangled = line.substr(tab_pos + 1); + EXPECT_EQ(demangled, DemangleIt(mangled.c_str())); + } +} + +#endif + +int main(int argc, char **argv) { +#ifdef HAVE_LIB_GFLAGS + ParseCommandLineFlags(&argc, &argv, true); +#endif + InitGoogleTest(&argc, argv); + + FLAGS_logtostderr = true; + InitGoogleLogging(argv[0]); + if (FLAGS_demangle_filter) { + // Read from cin and write to cout. + string line; + while (getline(cin, line, '\n')) { + cout << DemangleIt(line.c_str()) << endl; + } + return 0; + } else if (argc > 1) { + cout << DemangleIt(argv[1]) << endl; + return 0; + } else { + return RUN_ALL_TESTS(); + } +} |