path: root/contrib/restricted/googletest/googlemock/src/gmock-spec-builders.cc

// Copyright 2007, Google Inc. 
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// 
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// 
//     * Redistributions of source code must retain the above copyright 
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// in the documentation and/or other materials provided with the 
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// 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 
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
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// 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 <memory>
#include <set> 
#include <string> 
#include <vector>

#include "gmock/gmock.h" 
#include "gtest/gtest.h" 
#include "gtest/internal/gtest-port.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 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 << internal::FormatFileLocation(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 if and only if 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/docs/"
              "gmock_cook_book.md#"
              "knowing-when-to-expect for details.\n",
          stack_frames_to_skip); 
      break; 
    default:  // FAIL 
      Expect(false, nullptr, -1, msg);
  } 
} 
 
UntypedFunctionMockerBase::UntypedFunctionMockerBase() 
    : mock_obj_(nullptr), 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_ != nullptr, __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_ != nullptr, __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 if and only if 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 != nullptr) 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 = nullptr;
 
  // 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 != nullptr;
 
  // True if and only if 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 == nullptr
               ? 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* result = nullptr;
 
  auto perform_action = [&] {
    return untyped_action == nullptr
               ? this->UntypedPerformDefaultAction(untyped_args, ss.str())
               : this->UntypedPerformAction(untyped_action, untyped_args);
  };
  auto handle_failures = [&] {
    ss << "\n" << why.str();

    if (!found) {
      // No expectation matches this call - reports a failure.
      Expect(false, nullptr, -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);
    }
  };
#if GTEST_HAS_EXCEPTIONS
  try {
    result = perform_action();
  } catch (...) {
    handle_failures();
    throw;
  } 
#else
  result = perform_action();
#endif
 
  if (result != nullptr) result->PrintAsActionResult(&ss);
  handle_failures();
  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(nullptr), 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_suite;
  ::std::string first_used_test; 
  bool leakable;  // true if and only if 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() { 
    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_suite << "."
                  << 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 are "
                   "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 if and only if 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; 
} 
 
bool Mock::IsNaggy(void* mock_obj)
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
  return Mock::GetReactionOnUninterestingCalls(mock_obj) == internal::kWarn;
}
bool Mock::IsNice(void* mock_obj)
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
  return Mock::GetReactionOnUninterestingCalls(mock_obj) == internal::kAllow;
}
bool Mock::IsStrict(void* mock_obj)
    GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
  return Mock::GetReactionOnUninterestingCalls(mock_obj) == internal::kFail;
}

// 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 == nullptr) {
    state.first_used_file = file; 
    state.first_used_line = line; 
    const TestInfo* const test_info = 
        UnitTest::GetInstance()->current_test_info(); 
    if (test_info != nullptr) {
      state.first_used_test_suite = test_info->test_suite_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 std::shared_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() != nullptr) {
      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() == nullptr) {
    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(nullptr);
  } 
} 
 
}  // namespace testing 

#ifdef _MSC_VER
#if _MSC_VER == 1900
#  pragma warning(pop)
#endif
#endif