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 // Copyright 2007, 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: wan@google.com (Zhanyong Wan)

 // Google Mock - a framework for writing C++ mock classes.

 //

 // This file defines some utilities useful for implementing Google

 // Mock.  They are subject to change without notice, so please DO NOT

 // USE THEM IN USER CODE.

 #include "gmock/internal/gmock-internal-utils.h"

 #include <ctype.h>

 #include <ostream>  // NOLINT

 #include <string>

 #include "gmock/gmock.h"

 #include "gmock/internal/gmock-port.h"

 #include "gtest/gtest.h"

 namespace testing {

 namespace internal {

 // Converts an identifier name to a space-separated list of lower-case

 // words.  Each maximum substring of the form [A-Za-z][a-z]*|\d+ is

 // treated as one word.  For example, both "FooBar123" and

 // "foo_bar_123" are converted to "foo bar 123".

 string ConvertIdentifierNameToWords(const char* id_name) {

   string result;

   char prev_char = '\0';

   for (const char* p = id_name; *p != '\0'; prev_char = *(p++)) {

     // We don't care about the current locale as the input is

     // guaranteed to be a valid C++ identifier name.

     const bool starts_new_word = IsUpper(*p) ||

         (!IsAlpha(prev_char) && IsLower(*p)) ||

         (!IsDigit(prev_char) && IsDigit(*p));

     if (IsAlNum(*p)) {

       if (starts_new_word && result != "")

         result += ' ';

       result += ToLower(*p);

     }

   }

   return result;

 }

 // This class reports Google Mock failures as Google Test failures.  A

 // user can define another class in a similar fashion if he intends to

 // use Google Mock with a testing framework other than Google Test.

 class GoogleTestFailureReporter : public FailureReporterInterface {

  public:

   virtual void ReportFailure(FailureType type, const char* file, int line,

                              const string& message) {

     AssertHelper(type == FATAL ?

                  TestPartResult::kFatalFailure :

                  TestPartResult::kNonFatalFailure,

                  file,

                  line,

                  message.c_str()) = Message();

     if (type == FATAL) {

       posix::Abort();

     }

   }

 };

 // Returns the global failure reporter.  Will create a

 // GoogleTestFailureReporter and return it the first time called.

 FailureReporterInterface* GetFailureReporter() {

   // Points to the global failure reporter used by Google Mock.  gcc

   // guarantees that the following use of failure_reporter is

   // thread-safe.  We may need to add additional synchronization to

   // protect failure_reporter if we port Google Mock to other

   // compilers.

   static FailureReporterInterface* const failure_reporter =

       new GoogleTestFailureReporter();

   return failure_reporter;

 }

 // Protects global resources (stdout in particular) used by Log().

 static GTEST_DEFINE_STATIC_MUTEX_(g_log_mutex);

 // Returns true iff a log with the given severity is visible according

 // to the --gmock_verbose flag.

 bool LogIsVisible(LogSeverity severity) {

   if (GMOCK_FLAG(verbose) == kInfoVerbosity) {

     // Always show the log if --gmock_verbose=info.

     return true;

   } else if (GMOCK_FLAG(verbose) == kErrorVerbosity) {

     // Always hide it if --gmock_verbose=error.

     return false;

   } else {

     // If --gmock_verbose is neither "info" nor "error", we treat it

     // as "warning" (its default value).

     return severity == WARNING;

   }

 }

 // Prints the given message to stdout iff 'severity' >= the level

 // specified by the --gmock_verbose flag.  If stack_frames_to_skip >=

 // 0, also prints the stack trace excluding the top

 // stack_frames_to_skip frames.  In opt mode, any positive

 // stack_frames_to_skip is treated as 0, since we don't know which

 // function calls will be inlined by the compiler and need to be

 // conservative.

 void Log(LogSeverity severity, const string& message,

          int stack_frames_to_skip) {

   if (!LogIsVisible(severity))

     return;

   // Ensures that logs from different threads don't interleave.

   MutexLock l(&g_log_mutex);

   // "using ::std::cout;" doesn't work with Symbian's STLport, where cout is a

   // macro.

   if (severity == WARNING) {

     // Prints a GMOCK WARNING marker to make the warnings easily searchable.

     std::cout << "\nGMOCK WARNING:";

   }

   // Pre-pends a new-line to message if it doesn't start with one.

   if (message.empty() || message[0] != '\n') {

     std::cout << "\n";

   }

   std::cout << message;

   if (stack_frames_to_skip >= 0) {

 #ifdef NDEBUG

     // In opt mode, we have to be conservative and skip no stack frame.

     const int actual_to_skip = 0;

 #else

     // In dbg mode, we can do what the caller tell us to do (plus one

     // for skipping this function's stack frame).

     const int actual_to_skip = stack_frames_to_skip + 1;

 #endif  // NDEBUG

     // Appends a new-line to message if it doesn't end with one.

     if (!message.empty() && *message.rbegin() != '\n') {

       std::cout << "\n";

     }

     std::cout << "Stack trace:\n"

          << ::testing::internal::GetCurrentOsStackTraceExceptTop(

              ::testing::UnitTest::GetInstance(), actual_to_skip);

   }

   std::cout << ::std::flush;

 }

 }  // namespace internal

 }  // namespace testing