// 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.
 
 
 
 
 
// Google Mock - a framework for writing C++ mock classes.
 
//
 
// This file implements the spec builder syntax (ON_CALL and
 
// EXPECT_CALL).
 
 
 
#include "gmock/gmock-spec-builders.h"
 
 
 
#include <stdlib.h>
 
#include <iostream>  // NOLINT
 
#include <map>
 
#include <set>
 
#include <string>
 
#include <vector>
 
#include "gmock/gmock.h"
 
#include "gtest/gtest.h"
 
 
 
#if GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC
 
# include <unistd.h>  // NOLINT
 
#endif
 
 
 
// Silence C4800 (C4800: 'int *const ': forcing value
 
// to bool 'true' or 'false') for MSVC 14,15
 
#ifdef _MSC_VER
 
#if _MSC_VER <= 1900
 
#  pragma warning(push)
 
#  pragma warning(disable:4800)
 
#endif
 
#endif
 
 
 
namespace testing {
 
namespace internal {
 
 
 
// Protects the mock object registry (in class Mock), all function
 
// mockers, and all expectations.
 
GTEST_API_ GTEST_DEFINE_STATIC_MUTEX_(g_gmock_mutex);
 
 
 
// Logs a message including file and line number information.
 
GTEST_API_ void LogWithLocation(testing::internal::LogSeverity severity,
 
                                const char* file, int line,
 
                                const std::string& message) {
 
  ::std::ostringstream s;
 
  s << file << ":" << line << ": " << message << ::std::endl;
 
  Log(severity, s.str(), 0);
 
}
 
 
 
// Constructs an ExpectationBase object.
 
ExpectationBase::ExpectationBase(const char* a_file, int a_line,
 
                                 const std::string& a_source_text)
 
    : file_(a_file),
 
      line_(a_line),
 
      source_text_(a_source_text),
 
      cardinality_specified_(false),
 
      cardinality_(Exactly(1)),
 
      call_count_(0),
 
      retired_(false),
 
      extra_matcher_specified_(false),
 
      repeated_action_specified_(false),
 
      retires_on_saturation_(false),
 
      last_clause_(kNone),
 
      action_count_checked_(false) {}
 
 
 
// Destructs an ExpectationBase object.
 
ExpectationBase::~ExpectationBase() {}
 
 
 
// Explicitly specifies the cardinality of this expectation.  Used by
 
// the subclasses to implement the .Times() clause.
 
void ExpectationBase::SpecifyCardinality(const Cardinality& a_cardinality) {
 
  cardinality_specified_ = true;
 
  cardinality_ = a_cardinality;
 
}
 
 
 
// Retires all pre-requisites of this expectation.
 
void ExpectationBase::RetireAllPreRequisites()
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
 
  if (is_retired()) {
 
    // We can take this short-cut as we never retire an expectation
 
    // until we have retired all its pre-requisites.
 
    return;
 
  }
 
 
 
  ::std::vector<ExpectationBase*> expectations(1, this);
 
  while (!expectations.empty()) {
 
    ExpectationBase* exp = expectations.back();
 
    expectations.pop_back();
 
 
 
    for (ExpectationSet::const_iterator it =
 
             exp->immediate_prerequisites_.begin();
 
         it != exp->immediate_prerequisites_.end(); ++it) {
 
      ExpectationBase* next = it->expectation_base().get();
 
      if (!next->is_retired()) {
 
        next->Retire();
 
        expectations.push_back(next);
 
      }
 
    }
 
  }
 
}
 
 
 
// Returns true iff all pre-requisites of this expectation have been
 
// satisfied.
 
bool ExpectationBase::AllPrerequisitesAreSatisfied() const
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
 
  g_gmock_mutex.AssertHeld();
 
  ::std::vector<const ExpectationBase*> expectations(1, this);
 
  while (!expectations.empty()) {
 
    const ExpectationBase* exp = expectations.back();
 
    expectations.pop_back();
 
 
 
    for (ExpectationSet::const_iterator it =
 
             exp->immediate_prerequisites_.begin();
 
         it != exp->immediate_prerequisites_.end(); ++it) {
 
      const ExpectationBase* next = it->expectation_base().get();
 
      if (!next->IsSatisfied()) return false;
 
      expectations.push_back(next);
 
    }
 
  }
 
  return true;
 
}
 
 
 
// Adds unsatisfied pre-requisites of this expectation to 'result'.
 
void ExpectationBase::FindUnsatisfiedPrerequisites(ExpectationSet* result) const
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
 
  g_gmock_mutex.AssertHeld();
 
  ::std::vector<const ExpectationBase*> expectations(1, this);
 
  while (!expectations.empty()) {
 
    const ExpectationBase* exp = expectations.back();
 
    expectations.pop_back();
 
 
 
    for (ExpectationSet::const_iterator it =
 
             exp->immediate_prerequisites_.begin();
 
         it != exp->immediate_prerequisites_.end(); ++it) {
 
      const ExpectationBase* next = it->expectation_base().get();
 
 
 
      if (next->IsSatisfied()) {
 
        // If *it is satisfied and has a call count of 0, some of its
 
        // pre-requisites may not be satisfied yet.
 
        if (next->call_count_ == 0) {
 
          expectations.push_back(next);
 
        }
 
      } else {
 
        // Now that we know next is unsatisfied, we are not so interested
 
        // in whether its pre-requisites are satisfied.  Therefore we
 
        // don't iterate into it here.
 
        *result += *it;
 
      }
 
    }
 
  }
 
}
 
 
 
// Describes how many times a function call matching this
 
// expectation has occurred.
 
void ExpectationBase::DescribeCallCountTo(::std::ostream* os) const
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
 
  g_gmock_mutex.AssertHeld();
 
 
 
  // Describes how many times the function is expected to be called.
 
  *os << "         Expected: to be ";
 
  cardinality().DescribeTo(os);
 
  *os << "\n           Actual: ";
 
  Cardinality::DescribeActualCallCountTo(call_count(), os);
 
 
 
  // Describes the state of the expectation (e.g. is it satisfied?
 
  // is it active?).
 
  *os << " - " << (IsOverSaturated() ? "over-saturated" :
 
                   IsSaturated() ? "saturated" :
 
                   IsSatisfied() ? "satisfied" : "unsatisfied")
 
      << " and "
 
      << (is_retired() ? "retired" : "active");
 
}
 
 
 
// Checks the action count (i.e. the number of WillOnce() and
 
// WillRepeatedly() clauses) against the cardinality if this hasn't
 
// been done before.  Prints a warning if there are too many or too
 
// few actions.
 
void ExpectationBase::CheckActionCountIfNotDone() const
 
    GTEST_LOCK_EXCLUDED_(mutex_) {
 
  bool should_check = false;
 
  {
 
    MutexLock l(&mutex_);
 
    if (!action_count_checked_) {
 
      action_count_checked_ = true;
 
      should_check = true;
 
    }
 
  }
 
 
 
  if (should_check) {
 
    if (!cardinality_specified_) {
 
      // The cardinality was inferred - no need to check the action
 
      // count against it.
 
      return;
 
    }
 
 
 
    // The cardinality was explicitly specified.
 
    const int action_count = static_cast<int>(untyped_actions_.size());
 
    const int upper_bound = cardinality().ConservativeUpperBound();
 
    const int lower_bound = cardinality().ConservativeLowerBound();
 
    bool too_many;  // True if there are too many actions, or false
 
    // if there are too few.
 
    if (action_count > upper_bound ||
 
        (action_count == upper_bound && repeated_action_specified_)) {
 
      too_many = true;
 
    } else if (0 < action_count && action_count < lower_bound &&
 
               !repeated_action_specified_) {
 
      too_many = false;
 
    } else {
 
      return;
 
    }
 
 
 
    ::std::stringstream ss;
 
    DescribeLocationTo(&ss);
 
    ss << "Too " << (too_many ? "many" : "few")
 
       << " actions specified in " << source_text() << "...\n"
 
       << "Expected to be ";
 
    cardinality().DescribeTo(&ss);
 
    ss << ", but has " << (too_many ? "" : "only ")
 
       << action_count << " WillOnce()"
 
       << (action_count == 1 ? "" : "s");
 
    if (repeated_action_specified_) {
 
      ss << " and a WillRepeatedly()";
 
    }
 
    ss << ".";
 
    Log(kWarning, ss.str(), -1);  // -1 means "don't print stack trace".
 
  }
 
}
 
 
 
// Implements the .Times() clause.
 
void ExpectationBase::UntypedTimes(const Cardinality& a_cardinality) {
 
  if (last_clause_ == kTimes) {
 
    ExpectSpecProperty(false,
 
                       ".Times() cannot appear "
 
                       "more than once in an EXPECT_CALL().");
 
  } else {
 
    ExpectSpecProperty(last_clause_ < kTimes,
 
                       ".Times() cannot appear after "
 
                       ".InSequence(), .WillOnce(), .WillRepeatedly(), "
 
                       "or .RetiresOnSaturation().");
 
  }
 
  last_clause_ = kTimes;
 
 
 
  SpecifyCardinality(a_cardinality);
 
}
 
 
 
// Points to the implicit sequence introduced by a living InSequence
 
// object (if any) in the current thread or NULL.
 
GTEST_API_ ThreadLocal<Sequence*> g_gmock_implicit_sequence;
 
 
 
// Reports an uninteresting call (whose description is in msg) in the
 
// manner specified by 'reaction'.
 
void ReportUninterestingCall(CallReaction reaction, const std::string& msg) {
 
  // Include a stack trace only if --gmock_verbose=info is specified.
 
  const int stack_frames_to_skip =
 
      GMOCK_FLAG(verbose) == kInfoVerbosity ? 3 : -1;
 
  switch (reaction) {
 
    case kAllow:
 
      Log(kInfo, msg, stack_frames_to_skip);
 
      break;
 
    case kWarn:
 
      Log(kWarning,
 
          msg +
 
              "\nNOTE: You can safely ignore the above warning unless this "
 
              "call should not happen.  Do not suppress it by blindly adding "
 
              "an EXPECT_CALL() if you don't mean to enforce the call.  "
 
              "See "
 
              "https://github.com/google/googletest/blob/master/googlemock/"
 
              "docs/CookBook.md#"
 
              "knowing-when-to-expect for details.\n",
 
          stack_frames_to_skip);
 
      break;
 
    default:  // FAIL
 
      Expect(false, NULL, -1, msg);
 
  }
 
}
 
 
 
UntypedFunctionMockerBase::UntypedFunctionMockerBase()
 
    : mock_obj_(NULL), name_("") {}
 
 
 
UntypedFunctionMockerBase::~UntypedFunctionMockerBase() {}
 
 
 
// Sets the mock object this mock method belongs to, and registers
 
// this information in the global mock registry.  Will be called
 
// whenever an EXPECT_CALL() or ON_CALL() is executed on this mock
 
// method.
 
void UntypedFunctionMockerBase::RegisterOwner(const void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
 
  {
 
    MutexLock l(&g_gmock_mutex);
 
    mock_obj_ = mock_obj;
 
  }
 
  Mock::Register(mock_obj, this);
 
}
 
 
 
// Sets the mock object this mock method belongs to, and sets the name
 
// of the mock function.  Will be called upon each invocation of this
 
// mock function.
 
void UntypedFunctionMockerBase::SetOwnerAndName(const void* mock_obj,
 
                                                const char* name)
 
    GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
 
  // We protect name_ under g_gmock_mutex in case this mock function
 
  // is called from two threads concurrently.
 
  MutexLock l(&g_gmock_mutex);
 
  mock_obj_ = mock_obj;
 
  name_ = name;
 
}
 
 
 
// Returns the name of the function being mocked.  Must be called
 
// after RegisterOwner() or SetOwnerAndName() has been called.
 
const void* UntypedFunctionMockerBase::MockObject() const
 
    GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
 
  const void* mock_obj;
 
  {
 
    // We protect mock_obj_ under g_gmock_mutex in case this mock
 
    // function is called from two threads concurrently.
 
    MutexLock l(&g_gmock_mutex);
 
    Assert(mock_obj_ != NULL, __FILE__, __LINE__,
 
           "MockObject() must not be called before RegisterOwner() or "
 
           "SetOwnerAndName() has been called.");
 
    mock_obj = mock_obj_;
 
  }
 
  return mock_obj;
 
}
 
 
 
// Returns the name of this mock method.  Must be called after
 
// SetOwnerAndName() has been called.
 
const char* UntypedFunctionMockerBase::Name() const
 
    GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
 
  const char* name;
 
  {
 
    // We protect name_ under g_gmock_mutex in case this mock
 
    // function is called from two threads concurrently.
 
    MutexLock l(&g_gmock_mutex);
 
    Assert(name_ != NULL, __FILE__, __LINE__,
 
           "Name() must not be called before SetOwnerAndName() has "
 
           "been called.");
 
    name = name_;
 
  }
 
  return name;
 
}
 
 
 
// Calculates the result of invoking this mock function with the given
 
// arguments, prints it, and returns it.  The caller is responsible
 
// for deleting the result.
 
UntypedActionResultHolderBase* UntypedFunctionMockerBase::UntypedInvokeWith(
 
    void* const untyped_args) GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
 
  // See the definition of untyped_expectations_ for why access to it
 
  // is unprotected here.
 
  if (untyped_expectations_.size() == 0) {
 
    // No expectation is set on this mock method - we have an
 
    // uninteresting call.
 
 
 
    // We must get Google Mock's reaction on uninteresting calls
 
    // made on this mock object BEFORE performing the action,
 
    // because the action may DELETE the mock object and make the
 
    // following expression meaningless.
 
    const CallReaction reaction =
 
        Mock::GetReactionOnUninterestingCalls(MockObject());
 
 
 
    // True iff we need to print this call's arguments and return
 
    // value.  This definition must be kept in sync with
 
    // the behavior of ReportUninterestingCall().
 
    const bool need_to_report_uninteresting_call =
 
        // If the user allows this uninteresting call, we print it
 
        // only when they want informational messages.
 
        reaction == kAllow ? LogIsVisible(kInfo) :
 
                           // If the user wants this to be a warning, we print
 
                           // it only when they want to see warnings.
 
            reaction == kWarn
 
                ? LogIsVisible(kWarning)
 
                :
 
                // Otherwise, the user wants this to be an error, and we
 
                // should always print detailed information in the error.
 
                true;
 
 
 
    if (!need_to_report_uninteresting_call) {
 
      // Perform the action without printing the call information.
 
      return this->UntypedPerformDefaultAction(
 
          untyped_args, "Function call: " + std::string(Name()));
 
    }
 
 
 
    // Warns about the uninteresting call.
 
    ::std::stringstream ss;
 
    this->UntypedDescribeUninterestingCall(untyped_args, &ss);
 
 
 
    // Calculates the function result.
 
    UntypedActionResultHolderBase* const result =
 
        this->UntypedPerformDefaultAction(untyped_args, ss.str());
 
 
 
    // Prints the function result.
 
    if (result != NULL)
 
      result->PrintAsActionResult(&ss);
 
 
 
    ReportUninterestingCall(reaction, ss.str());
 
    return result;
 
  }
 
 
 
  bool is_excessive = false;
 
  ::std::stringstream ss;
 
  ::std::stringstream why;
 
  ::std::stringstream loc;
 
  const void* untyped_action = NULL;
 
 
 
  // The UntypedFindMatchingExpectation() function acquires and
 
  // releases g_gmock_mutex.
 
  const ExpectationBase* const untyped_expectation =
 
      this->UntypedFindMatchingExpectation(
 
          untyped_args, &untyped_action, &is_excessive,
 
          &ss, &why);
 
  const bool found = untyped_expectation != NULL;
 
 
 
  // True iff we need to print the call's arguments and return value.
 
  // This definition must be kept in sync with the uses of Expect()
 
  // and Log() in this function.
 
  const bool need_to_report_call =
 
      !found || is_excessive || LogIsVisible(kInfo);
 
  if (!need_to_report_call) {
 
    // Perform the action without printing the call information.
 
    return
 
        untyped_action == NULL ?
 
        this->UntypedPerformDefaultAction(untyped_args, "") :
 
        this->UntypedPerformAction(untyped_action, untyped_args);
 
  }
 
 
 
  ss << "    Function call: " << Name();
 
  this->UntypedPrintArgs(untyped_args, &ss);
 
 
 
  // In case the action deletes a piece of the expectation, we
 
  // generate the message beforehand.
 
  if (found && !is_excessive) {
 
    untyped_expectation->DescribeLocationTo(&loc);
 
  }
 
 
 
  UntypedActionResultHolderBase* const result =
 
      untyped_action == NULL ?
 
      this->UntypedPerformDefaultAction(untyped_args, ss.str()) :
 
      this->UntypedPerformAction(untyped_action, untyped_args);
 
  if (result != NULL)
 
    result->PrintAsActionResult(&ss);
 
  ss << "\n" << why.str();
 
 
 
  if (!found) {
 
    // No expectation matches this call - reports a failure.
 
    Expect(false, NULL, -1, ss.str());
 
  } else if (is_excessive) {
 
    // We had an upper-bound violation and the failure message is in ss.
 
    Expect(false, untyped_expectation->file(),
 
           untyped_expectation->line(), ss.str());
 
  } else {
 
    // We had an expected call and the matching expectation is
 
    // described in ss.
 
    Log(kInfo, loc.str() + ss.str(), 2);
 
  }
 
 
 
  return result;
 
}
 
 
 
// Returns an Expectation object that references and co-owns exp,
 
// which must be an expectation on this mock function.
 
Expectation UntypedFunctionMockerBase::GetHandleOf(ExpectationBase* exp) {
 
  // See the definition of untyped_expectations_ for why access to it
 
  // is unprotected here.
 
  for (UntypedExpectations::const_iterator it =
 
           untyped_expectations_.begin();
 
       it != untyped_expectations_.end(); ++it) {
 
    if (it->get() == exp) {
 
      return Expectation(*it);
 
    }
 
  }
 
 
 
  Assert(false, __FILE__, __LINE__, "Cannot find expectation.");
 
  return Expectation();
 
  // The above statement is just to make the code compile, and will
 
  // never be executed.
 
}
 
 
 
// Verifies that all expectations on this mock function have been
 
// satisfied.  Reports one or more Google Test non-fatal failures
 
// and returns false if not.
 
bool UntypedFunctionMockerBase::VerifyAndClearExpectationsLocked()
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
 
  g_gmock_mutex.AssertHeld();
 
  bool expectations_met = true;
 
  for (UntypedExpectations::const_iterator it =
 
           untyped_expectations_.begin();
 
       it != untyped_expectations_.end(); ++it) {
 
    ExpectationBase* const untyped_expectation = it->get();
 
    if (untyped_expectation->IsOverSaturated()) {
 
      // There was an upper-bound violation.  Since the error was
 
      // already reported when it occurred, there is no need to do
 
      // anything here.
 
      expectations_met = false;
 
    } else if (!untyped_expectation->IsSatisfied()) {
 
      expectations_met = false;
 
      ::std::stringstream ss;
 
      ss  << "Actual function call count doesn't match "
 
          << untyped_expectation->source_text() << "...\n";
 
      // No need to show the source file location of the expectation
 
      // in the description, as the Expect() call that follows already
 
      // takes care of it.
 
      untyped_expectation->MaybeDescribeExtraMatcherTo(&ss);
 
      untyped_expectation->DescribeCallCountTo(&ss);
 
      Expect(false, untyped_expectation->file(),
 
             untyped_expectation->line(), ss.str());
 
    }
 
  }
 
 
 
  // Deleting our expectations may trigger other mock objects to be deleted, for
 
  // example if an action contains a reference counted smart pointer to that
 
  // mock object, and that is the last reference. So if we delete our
 
  // expectations within the context of the global mutex we may deadlock when
 
  // this method is called again. Instead, make a copy of the set of
 
  // expectations to delete, clear our set within the mutex, and then clear the
 
  // copied set outside of it.
 
  UntypedExpectations expectations_to_delete;
 
  untyped_expectations_.swap(expectations_to_delete);
 
 
 
  g_gmock_mutex.Unlock();
 
  expectations_to_delete.clear();
 
  g_gmock_mutex.Lock();
 
 
 
  return expectations_met;
 
}
 
 
 
CallReaction intToCallReaction(int mock_behavior) {
 
  if (mock_behavior >= kAllow && mock_behavior <= kFail) {
 
    return static_cast<internal::CallReaction>(mock_behavior);
 
  }
 
  return kWarn;
 
}
 
 
 
}  // namespace internal
 
 
 
// Class Mock.
 
 
 
namespace {
 
 
 
typedef std::set<internal::UntypedFunctionMockerBase*> FunctionMockers;
 
 
 
// The current state of a mock object.  Such information is needed for
 
// detecting leaked mock objects and explicitly verifying a mock's
 
// expectations.
 
struct MockObjectState {
 
  MockObjectState()
 
      : first_used_file(NULL), first_used_line(-1), leakable(false) {}
 
 
 
  // Where in the source file an ON_CALL or EXPECT_CALL is first
 
  // invoked on this mock object.
 
  const char* first_used_file;
 
  int first_used_line;
 
  ::std::string first_used_test_case;
 
  ::std::string first_used_test;
 
  bool leakable;  // true iff it's OK to leak the object.
 
  FunctionMockers function_mockers;  // All registered methods of the object.
 
};
 
 
 
// A global registry holding the state of all mock objects that are
 
// alive.  A mock object is added to this registry the first time
 
// Mock::AllowLeak(), ON_CALL(), or EXPECT_CALL() is called on it.  It
 
// is removed from the registry in the mock object's destructor.
 
class MockObjectRegistry {
 
 public:
 
  // Maps a mock object (identified by its address) to its state.
 
  typedef std::map<const void*, MockObjectState> StateMap;
 
 
 
  // This destructor will be called when a program exits, after all
 
  // tests in it have been run.  By then, there should be no mock
 
  // object alive.  Therefore we report any living object as test
 
  // failure, unless the user explicitly asked us to ignore it.
 
  ~MockObjectRegistry() {
 
    // "using ::std::cout;" doesn't work with Symbian's STLport, where cout is
 
    // a macro.
 
 
 
    if (!GMOCK_FLAG(catch_leaked_mocks))
 
      return;
 
 
 
    int leaked_count = 0;
 
    for (StateMap::const_iterator it = states_.begin(); it != states_.end();
 
         ++it) {
 
      if (it->second.leakable)  // The user said it's fine to leak this object.
 
        continue;
 
 
 
      // FIXME: Print the type of the leaked object.
 
      // This can help the user identify the leaked object.
 
      std::cout << "\n";
 
      const MockObjectState& state = it->second;
 
      std::cout << internal::FormatFileLocation(state.first_used_file,
 
                                                state.first_used_line);
 
      std::cout << " ERROR: this mock object";
 
      if (state.first_used_test != "") {
 
        std::cout << " (used in test " << state.first_used_test_case << "."
 
             << state.first_used_test << ")";
 
      }
 
      std::cout << " should be deleted but never is. Its address is @"
 
           << it->first << ".";
 
      leaked_count++;
 
    }
 
    if (leaked_count > 0) {
 
      std::cout << "\nERROR: " << leaked_count << " leaked mock "
 
                << (leaked_count == 1 ? "object" : "objects")
 
                << " found at program exit. Expectations on a mock object is "
 
                   "verified when the object is destructed. Leaking a mock "
 
                   "means that its expectations aren't verified, which is "
 
                   "usually a test bug. If you really intend to leak a mock, "
 
                   "you can suppress this error using "
 
                   "testing::Mock::AllowLeak(mock_object), or you may use a "
 
                   "fake or stub instead of a mock.\n";
 
      std::cout.flush();
 
      ::std::cerr.flush();
 
      // RUN_ALL_TESTS() has already returned when this destructor is
 
      // called.  Therefore we cannot use the normal Google Test
 
      // failure reporting mechanism.
 
      _exit(1);  // We cannot call exit() as it is not reentrant and
 
                 // may already have been called.
 
    }
 
  }
 
 
 
  StateMap& states() { return states_; }
 
 
 
 private:
 
  StateMap states_;
 
};
 
 
 
// Protected by g_gmock_mutex.
 
MockObjectRegistry g_mock_object_registry;
 
 
 
// Maps a mock object to the reaction Google Mock should have when an
 
// uninteresting method is called.  Protected by g_gmock_mutex.
 
std::map<const void*, internal::CallReaction> g_uninteresting_call_reaction;
 
 
 
// Sets the reaction Google Mock should have when an uninteresting
 
// method of the given mock object is called.
 
void SetReactionOnUninterestingCalls(const void* mock_obj,
 
                                     internal::CallReaction reaction)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  g_uninteresting_call_reaction[mock_obj] = reaction;
 
}
 
 
 
}  // namespace
 
 
 
// Tells Google Mock to allow uninteresting calls on the given mock
 
// object.
 
void Mock::AllowUninterestingCalls(const void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  SetReactionOnUninterestingCalls(mock_obj, internal::kAllow);
 
}
 
 
 
// Tells Google Mock to warn the user about uninteresting calls on the
 
// given mock object.
 
void Mock::WarnUninterestingCalls(const void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  SetReactionOnUninterestingCalls(mock_obj, internal::kWarn);
 
}
 
 
 
// Tells Google Mock to fail uninteresting calls on the given mock
 
// object.
 
void Mock::FailUninterestingCalls(const void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  SetReactionOnUninterestingCalls(mock_obj, internal::kFail);
 
}
 
 
 
// Tells Google Mock the given mock object is being destroyed and its
 
// entry in the call-reaction table should be removed.
 
void Mock::UnregisterCallReaction(const void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  g_uninteresting_call_reaction.erase(mock_obj);
 
}
 
 
 
// Returns the reaction Google Mock will have on uninteresting calls
 
// made on the given mock object.
 
internal::CallReaction Mock::GetReactionOnUninterestingCalls(
 
    const void* mock_obj)
 
        GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  return (g_uninteresting_call_reaction.count(mock_obj) == 0) ?
 
      internal::intToCallReaction(GMOCK_FLAG(default_mock_behavior)) :
 
      g_uninteresting_call_reaction[mock_obj];
 
}
 
 
 
// Tells Google Mock to ignore mock_obj when checking for leaked mock
 
// objects.
 
void Mock::AllowLeak(const void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  g_mock_object_registry.states()[mock_obj].leakable = true;
 
}
 
 
 
// Verifies and clears all expectations on the given mock object.  If
 
// the expectations aren't satisfied, generates one or more Google
 
// Test non-fatal failures and returns false.
 
bool Mock::VerifyAndClearExpectations(void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  return VerifyAndClearExpectationsLocked(mock_obj);
 
}
 
 
 
// Verifies all expectations on the given mock object and clears its
 
// default actions and expectations.  Returns true iff the
 
// verification was successful.
 
bool Mock::VerifyAndClear(void* mock_obj)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  ClearDefaultActionsLocked(mock_obj);
 
  return VerifyAndClearExpectationsLocked(mock_obj);
 
}
 
 
 
// Verifies and clears all expectations on the given mock object.  If
 
// the expectations aren't satisfied, generates one or more Google
 
// Test non-fatal failures and returns false.
 
bool Mock::VerifyAndClearExpectationsLocked(void* mock_obj)
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex) {
 
  internal::g_gmock_mutex.AssertHeld();
 
  if (g_mock_object_registry.states().count(mock_obj) == 0) {
 
    // No EXPECT_CALL() was set on the given mock object.
 
    return true;
 
  }
 
 
 
  // Verifies and clears the expectations on each mock method in the
 
  // given mock object.
 
  bool expectations_met = true;
 
  FunctionMockers& mockers =
 
      g_mock_object_registry.states()[mock_obj].function_mockers;
 
  for (FunctionMockers::const_iterator it = mockers.begin();
 
       it != mockers.end(); ++it) {
 
    if (!(*it)->VerifyAndClearExpectationsLocked()) {
 
      expectations_met = false;
 
    }
 
  }
 
 
 
  // We don't clear the content of mockers, as they may still be
 
  // needed by ClearDefaultActionsLocked().
 
  return expectations_met;
 
}
 
 
 
// Registers a mock object and a mock method it owns.
 
void Mock::Register(const void* mock_obj,
 
                    internal::UntypedFunctionMockerBase* mocker)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  g_mock_object_registry.states()[mock_obj].function_mockers.insert(mocker);
 
}
 
 
 
// Tells Google Mock where in the source code mock_obj is used in an
 
// ON_CALL or EXPECT_CALL.  In case mock_obj is leaked, this
 
// information helps the user identify which object it is.
 
void Mock::RegisterUseByOnCallOrExpectCall(const void* mock_obj,
 
                                           const char* file, int line)
 
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
 
  internal::MutexLock l(&internal::g_gmock_mutex);
 
  MockObjectState& state = g_mock_object_registry.states()[mock_obj];
 
  if (state.first_used_file == NULL) {
 
    state.first_used_file = file;
 
    state.first_used_line = line;
 
    const TestInfo* const test_info =
 
        UnitTest::GetInstance()->current_test_info();
 
    if (test_info != NULL) {
 
      // FIXME: record the test case name when the
 
      // ON_CALL or EXPECT_CALL is invoked from SetUpTestCase() or
 
      // TearDownTestCase().
 
      state.first_used_test_case = test_info->test_case_name();
 
      state.first_used_test = test_info->name();
 
    }
 
  }
 
}
 
 
 
// Unregisters a mock method; removes the owning mock object from the
 
// registry when the last mock method associated with it has been
 
// unregistered.  This is called only in the destructor of
 
// FunctionMockerBase.
 
void Mock::UnregisterLocked(internal::UntypedFunctionMockerBase* mocker)
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex) {
 
  internal::g_gmock_mutex.AssertHeld();
 
  for (MockObjectRegistry::StateMap::iterator it =
 
           g_mock_object_registry.states().begin();
 
       it != g_mock_object_registry.states().end(); ++it) {
 
    FunctionMockers& mockers = it->second.function_mockers;
 
    if (mockers.erase(mocker) > 0) {
 
      // mocker was in mockers and has been just removed.
 
      if (mockers.empty()) {
 
        g_mock_object_registry.states().erase(it);
 
      }
 
      return;
 
    }
 
  }
 
}
 
 
 
// Clears all ON_CALL()s set on the given mock object.
 
void Mock::ClearDefaultActionsLocked(void* mock_obj)
 
    GTEST_EXCLUSIVE_LOCK_REQUIRED_(internal::g_gmock_mutex) {
 
  internal::g_gmock_mutex.AssertHeld();
 
 
 
  if (g_mock_object_registry.states().count(mock_obj) == 0) {
 
    // No ON_CALL() was set on the given mock object.
 
    return;
 
  }
 
 
 
  // Clears the default actions for each mock method in the given mock
 
  // object.
 
  FunctionMockers& mockers =
 
      g_mock_object_registry.states()[mock_obj].function_mockers;
 
  for (FunctionMockers::const_iterator it = mockers.begin();
 
       it != mockers.end(); ++it) {
 
    (*it)->ClearDefaultActionsLocked();
 
  }
 
 
 
  // We don't clear the content of mockers, as they may still be
 
  // needed by VerifyAndClearExpectationsLocked().
 
}
 
 
 
Expectation::Expectation() {}
 
 
 
Expectation::Expectation(
 
    const internal::linked_ptr<internal::ExpectationBase>& an_expectation_base)
 
    : expectation_base_(an_expectation_base) {}
 
 
 
Expectation::~Expectation() {}
 
 
 
// Adds an expectation to a sequence.
 
void Sequence::AddExpectation(const Expectation& expectation) const {
 
  if (*last_expectation_ != expectation) {
 
    if (last_expectation_->expectation_base() != NULL) {
 
      expectation.expectation_base()->immediate_prerequisites_
 
          += *last_expectation_;
 
    }
 
    *last_expectation_ = expectation;
 
  }
 
}
 
 
 
// Creates the implicit sequence if there isn't one.
 
InSequence::InSequence() {
 
  if (internal::g_gmock_implicit_sequence.get() == NULL) {
 
    internal::g_gmock_implicit_sequence.set(new Sequence);
 
    sequence_created_ = true;
 
  } else {
 
    sequence_created_ = false;
 
  }
 
}
 
 
 
// Deletes the implicit sequence if it was created by the constructor
 
// of this object.
 
InSequence::~InSequence() {
 
  if (sequence_created_) {
 
    delete internal::g_gmock_implicit_sequence.get();
 
    internal::g_gmock_implicit_sequence.set(NULL);
 
  }
 
}
 
 
 
}  // namespace testing
 
 
 
#ifdef _MSC_VER
 
#if _MSC_VER <= 1900
 
#  pragma warning(pop)
 
#endif
 
#endif