ceph/src/test/common/test_back_trace.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #include <boost/algorithm/string.hpp>
   5 // std::regex support in libstdc++ 4.8 is incomplete, so let's stick to
   6 // boost::regex now.
   7 #include <boost/regex.hpp>
   8 #include <gtest/gtest.h>
   9 #include <sstream>
  10 #include <string>
  11
  12 #include "common/BackTrace.h"
  13 #include "common/version.h"
  14
  15 // a dummy function, so we can check "foo" in the backtrace.
  16 // do not mark this function as static or put it into an anonymous namespace,
  17 // otherwise it's function name will be removed in the backtrace.
  18 std::string foo()
  19 {
  20   std::ostringstream oss;
  21   oss << ceph::BackTrace(1);
  22   return oss.str();
  23 }
  24
  25 // a typical backtrace looks like:
  26 //
  27 // ceph version Development (no_version)
  28 // 1: (foo[abi:cxx11]()+0x4a) [0x5562231cf22a]
  29 // 2: (BackTrace_Basic_Test::TestBody()+0x28) [0x5562231cf2fc]
  30 TEST(BackTrace, Basic) {
  31   std::string bt = foo();
  32   std::vector<std::string> lines;
  33   boost::split(lines, bt, boost::is_any_of("\n"));
  34   const unsigned lineno = 1;
  35   ASSERT_GT(lines.size(), lineno);
  36   ASSERT_EQ(lines[0].find(pretty_version_to_str()), 1U);
  37   boost::regex e{"^ 1: "
  38 #ifdef __FreeBSD__
  39                  "<foo.*>\\s"
  40                  "at\\s.*$"};
  41 #else
  42                  "\\(foo.*\\)\\s"
  43                  "\\[0x[[:xdigit:]]+\\]$"};
  44 #endif
  45   EXPECT_TRUE(boost::regex_match(lines[lineno], e));
  46 }