// 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 tests the built-in actions.

#include "gmock/gmock-actions.h"
#include <algorithm>
#include <iterator>
#include <memory>
#include <string>
#include "gmock/gmock.h"
#include "gmock/internal/gmock-port.h"
#include "gtest/gtest.h"
#include "gtest/gtest-spi.h"

namespace {

// This list should be kept sorted.
using testing::Action;
using testing::ActionInterface;
using testing::Assign;
using testing::ByMove;
using testing::ByRef;
using testing::DefaultValue;
using testing::DoDefault;
using testing::IgnoreResult;
using testing::Invoke;
using testing::InvokeWithoutArgs;
using testing::MakePolymorphicAction;
using testing::Ne;
using testing::PolymorphicAction;
using testing::Return;
using testing::ReturnNull;
using testing::ReturnRef;
using testing::ReturnRefOfCopy;
using testing::SetArgPointee;
using testing::SetArgumentPointee;
using testing::_;
using testing::get;
using testing::internal::BuiltInDefaultValue;
using testing::internal::Int64;
using testing::internal::UInt64;
using testing::make_tuple;
using testing::tuple;
using testing::tuple_element;

#if !GTEST_OS_WINDOWS_MOBILE
using testing::SetErrnoAndReturn;
#endif

#if GTEST_HAS_PROTOBUF_
using testing::internal::TestMessage;
#endif  // GTEST_HAS_PROTOBUF_

// Tests that BuiltInDefaultValue<T*>::Get() returns NULL.
TEST(BuiltInDefaultValueTest, IsNullForPointerTypes) {
  EXPECT_TRUE(BuiltInDefaultValue<int*>::Get() == NULL);
  EXPECT_TRUE(BuiltInDefaultValue<const char*>::Get() == NULL);
  EXPECT_TRUE(BuiltInDefaultValue<void*>::Get() == NULL);
}

// Tests that BuiltInDefaultValue<T*>::Exists() return true.
TEST(BuiltInDefaultValueTest, ExistsForPointerTypes) {
  EXPECT_TRUE(BuiltInDefaultValue<int*>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<const char*>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<void*>::Exists());
}

// Tests that BuiltInDefaultValue<T>::Get() returns 0 when T is a
// built-in numeric type.
TEST(BuiltInDefaultValueTest, IsZeroForNumericTypes) {
  EXPECT_EQ(0U, BuiltInDefaultValue<unsigned char>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<signed char>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<char>::Get());
#if GMOCK_HAS_SIGNED_WCHAR_T_
  EXPECT_EQ(0U, BuiltInDefaultValue<unsigned wchar_t>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<signed wchar_t>::Get());
#endif
#if GMOCK_WCHAR_T_IS_NATIVE_
  EXPECT_EQ(0, BuiltInDefaultValue<wchar_t>::Get());
#endif
  EXPECT_EQ(0U, BuiltInDefaultValue<unsigned short>::Get());  // NOLINT
  EXPECT_EQ(0, BuiltInDefaultValue<signed short>::Get());  // NOLINT
  EXPECT_EQ(0, BuiltInDefaultValue<short>::Get());  // NOLINT
  EXPECT_EQ(0U, BuiltInDefaultValue<unsigned int>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<signed int>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<int>::Get());
  EXPECT_EQ(0U, BuiltInDefaultValue<unsigned long>::Get());  // NOLINT
  EXPECT_EQ(0, BuiltInDefaultValue<signed long>::Get());  // NOLINT
  EXPECT_EQ(0, BuiltInDefaultValue<long>::Get());  // NOLINT
  EXPECT_EQ(0U, BuiltInDefaultValue<UInt64>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<Int64>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<float>::Get());
  EXPECT_EQ(0, BuiltInDefaultValue<double>::Get());
}

// Tests that BuiltInDefaultValue<T>::Exists() returns true when T is a
// built-in numeric type.
TEST(BuiltInDefaultValueTest, ExistsForNumericTypes) {
  EXPECT_TRUE(BuiltInDefaultValue<unsigned char>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<signed char>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<char>::Exists());
#if GMOCK_HAS_SIGNED_WCHAR_T_
  EXPECT_TRUE(BuiltInDefaultValue<unsigned wchar_t>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<signed wchar_t>::Exists());
#endif
#if GMOCK_WCHAR_T_IS_NATIVE_
  EXPECT_TRUE(BuiltInDefaultValue<wchar_t>::Exists());
#endif
  EXPECT_TRUE(BuiltInDefaultValue<unsigned short>::Exists());  // NOLINT
  EXPECT_TRUE(BuiltInDefaultValue<signed short>::Exists());  // NOLINT
  EXPECT_TRUE(BuiltInDefaultValue<short>::Exists());  // NOLINT
  EXPECT_TRUE(BuiltInDefaultValue<unsigned int>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<signed int>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<int>::Exists());
  EXPECT_TRUE(BuiltInDefaultValue<unsigned long>::Exists());  // NOLINT
  EXPECT_TRUE(BuiltInDefaultValue<signed long>::Exists());  // NOLINT
  EXPECT_TRUE(BuiltInDefaultValue<long>::Exists());  // NOLINT
  EXPECT_TRUE(BuiltInDef<style>pre { line-height: 125%; margin: 0; }
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="cm">/*</span>
<span class="cm">    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio</span>

<span class="cm">    Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span>
<span class="cm">    you may not use this file except in compliance with the License.</span>
<span class="cm">    You may obtain a copy of the License at</span>

<span class="cm">        http://www.apache.org/licenses/LICENSE-2.0</span>

<span class="cm">    Unless required by applicable law or agreed to in writing, software</span>
<span class="cm">    distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span>
<span class="cm">    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<span class="cm">    See the License for the specific language governing permissions and</span>
<span class="cm">    limitations under the License.</span>
<span class="cm">*/</span>

<span class="cp">#include</span> <span class="cpf">&quot;ch.h&quot;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&quot;hal.h&quot;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&quot;ch_test.h&quot;</span><span class="cp"></span>

<span class="cm">/*</span>
<span class="cm"> * This is a periodic thread that does absolutely nothing except flashing LEDs.</span>
<span class="cm"> */</span>
<span class="k">static</span> <span class="nf">THD_WORKING_AREA</span><span class="p">(</span><span class="n">waThread1</span><span class="p">,</span> <span class="mi">128</span><span class="p">);</span>
<span class="k">static</span> <span class="nf">THD_FUNCTION</span><span class="p">(</span><span class="n">Thread1</span><span class="p">,</span> <span class="n">arg</span><span class="p">)</span> <span class="p">{</span>

  <span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">arg</span><span class="p">;</span>

  <span class="n">chRegSetThreadName</span><span class="p">(</span><span class="s">&quot;blinker&quot;</span><span class="p">);</span>
  <span class="k">while</span> <span class="p">(</span><span class="nb">true</span><span class="p">)</span> <span class="p">{</span>
    <span class="n">palClearPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED1</span><span class="p">);</span>
    <span class="n">chThdSleepMilliseconds</span><span class="p">(</span><span class="mi">250</span><span class="p">);</span>
    <span class="n">palSetPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED1</span><span class="p">);</span>
    <span class="n">palClearPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED2</span><span class="p">);</span>
    <span class="n">chThdSleepMilliseconds</span><span class="p">(</span><span class="mi">250</span><span class="p">);</span>
    <span class="n">palSetPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED2</span><span class="p">);</span>
    <span class="n">palClearPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED3</span><span class="p">);</span>
    <span class="n">chThdSleepMilliseconds</span><span class="p">(</span><span class="mi">250</span><span class="p">);</span>
    <span class="n">palSetPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED3</span><span class="p">);</span>
    <span class="n">palClearPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED4</span><span class="p">);</span>
    <span class="n">chThdSleepMilliseconds</span><span class="p">(</span><span class="mi">250</span><span class="p">);</span>
    <span class="n">palSetPad</span><span class="p">(</span><span class="n">GPIOC</span><span class="p">,</span> <span class="n">GPIOC_LED4</span><span class="p">);</span>
  <span class="p">}</span>
<span class="p">}</span>

<span class="cm">/*</span>
<span class="cm"> * Application entry point.</span>
<span class="cm"> */</span>
<span class="kt">int</span> <span class="nf">main</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span> <span class="p">{</span>

  <span class="cm">/*</span>
<span class="cm">   * System initializations.</span>
<span class="cm">   * - HAL initialization, this also initializes the configured device drivers</span>
<span class="cm">   *   and performs the board-specific initializations.</span>
<span class="cm">   * - Kernel initialization, the main() function becomes a thread and the</span>
<span class="cm">   *   RTOS is active.</span>
<span class="cm">   */</span>
  <span class="n">halInit</span><span class="p">();</span>
  <span class="n">chSysInit</span><span class="p">();</span>

  <span class="cm">/*</span>
<span class="cm">   * Activates the serial driver 2 using the default configuration, pins</span>
<span class="cm">   * are pre-configured in board.h.</span>
<span class="cm">   */</span>
  <span class="n">sdStart</span><span class="p">(</span><span class="o">&amp;</span><span class="n">SD2</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>

  <span class="cm">/*</span>
<span class="cm">   * Creates the example thread.</span>
<span class="cm">   */</span>
  <span class="n">chThdCreateStatic</span><span class="p">(</span><span class="n">waThread1</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">waThread1</span><span class="p">),</span> <span class="n">NORMALPRIO</span><span class="p">,</span> <span class="n">Thread1</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>

  <span class="cm">/*</span>
<span class="cm">   * Normal main() thread activity, in this demo it does nothing except</span>
<span class="cm">   * sleeping in a loop and check the button state, when the button is</span>
<span class="cm">   * pressed the test procedure is launched.</span>
<span class="cm">   */</span>
  <span class="k">while</span> <span class="p">(</span><span class="nb">true</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">if</span> <span class="p">(</span><span class="n">palReadPad</span><span class="p">(</span><span class="n">GPIOA</span><span class="p">,</span> <span class="n">GPIOA_WKUP_BUTTON</span><span class="p">))</span>
      <span class="n">test_execute</span><span class="p">((</span><span class="n">BaseSequentialStream</span> <span class="o">*</span><span class="p">)</span><span class="o">&amp;</span><span class="n">SD2</span><span class="p">);</span>
    <span class="n">chThdSleepMilliseconds</span><span class="p">(</span><span class="mi">500</span><span class="p">);</span>
  <span class="p">}</span>
<span class="p">}</span>
</pre></div>
</code></pre></td></tr></table>
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ullaryFunction();
  EXPECT_EQ(0, a1.Perform(make_tuple()));

  Action<void*()> a2 = ReturnZeroFromNullaryFunction();
  EXPECT_TRUE(a2.Perform(make_tuple()) == NULL);
}

// Tests that Return() works as an action for void-returning
// functions.
TEST(ReturnTest, WorksForVoid) {
  const Action<void(int)> ret = Return();  // NOLINT
  return ret.Perform(make_tuple(1));
}

// Tests that Return(v) returns v.
TEST(ReturnTest, ReturnsGivenValue) {
  Action<int()> ret = Return(1);  // NOLINT
  EXPECT_EQ(1, ret.Perform(make_tuple()));

  ret = Return(-5);
  EXPECT_EQ(-5, ret.Perform(make_tuple()));
}

// Tests that Return("string literal") works.
TEST(ReturnTest, AcceptsStringLiteral) {
  Action<const char*()> a1 = Return("Hello");
  EXPECT_STREQ("Hello", a1.Perform(make_tuple()));

  Action<std::string()> a2 = Return("world");
  EXPECT_EQ("world", a2.Perform(make_tuple()));
}

// Test struct which wraps a vector of integers. Used in
// 'SupportsWrapperReturnType' test.
struct IntegerVectorWrapper {
  std::vector<int> * v;
  IntegerVectorWrapper(std::vector<int>& _v) : v(&_v) {}  // NOLINT
};

// Tests that Return() works when return type is a wrapper type.
TEST(ReturnTest, SupportsWrapperReturnType) {
  // Initialize vector of integers.
  std::vector<int> v;
  for (int i = 0; i < 5; ++i) v.push_back(i);

  // Return() called with 'v' as argument. The Action will return the same data
  // as 'v' (copy) but it will be wrapped in an IntegerVectorWrapper.
  Action<IntegerVectorWrapper()> a = Return(v);
  const std::vector<int>& result = *(a.Perform(make_tuple()).v);
  EXPECT_THAT(result, ::testing::ElementsAre(0, 1, 2, 3, 4));
}

// Tests that Return(v) is covaraint.

struct Base {
  bool operator==(const Base&) { return true; }
};

struct Derived : public Base {
  bool operator==(const Derived&) { return true; }
};

TEST(ReturnTest, IsCovariant) {
  Base base;
  Derived derived;
  Action<Base*()> ret = Return(&base);
  EXPECT_EQ(&base, ret.Perform(make_tuple()));

  ret = Return(&derived);
  EXPECT_EQ(&derived, ret.Perform(make_tuple()));
}

// Tests that the type of the value passed into Return is converted into T
// when the action is cast to Action<T(...)> rather than when the action is
// performed. See comments on testing::internal::ReturnAction in
// gmock-actions.h for more information.
class FromType {
 public:
  explicit FromType(bool* is_converted) : converted_(is_converted) {}
  bool* converted() const { return converted_; }

 private:
  bool* const converted_;

  GTEST_DISALLOW_ASSIGN_(FromType);
};

class ToType {
 public:
  // Must allow implicit conversion due to use in ImplicitCast_<T>.
  ToType(const FromType& x) { *x.converted() = true; }  // NOLINT
};

TEST(ReturnTest, ConvertsArgumentWhenConverted) {
  bool converted = false;
  FromType x(&converted);
  Action<ToType()> action(Return(x));
  EXPECT_TRUE(converted) << "Return must convert its argument in its own "
                         << "conversion operator.";
  converted = false;
  action.Perform(tuple<>());
  EXPECT_FALSE(converted) << "Action must NOT convert its argument "
                          << "when performed.";
}

class DestinationType {};

class SourceType {
 public:
  // Note: a non-const typecast operator.
  operator DestinationType() { return DestinationType(); }
};

TEST(ReturnTest, CanConvertArgumentUsingNonConstTypeCastOperator) {
  SourceType s;
  Action<DestinationType()> action(Return(s));
}

// Tests that ReturnNull() returns NULL in a pointer-returning function.
TEST(ReturnNullTest, WorksInPointerReturningFunction) {
  const Action<int*()> a1 = ReturnNull();
  EXPECT_TRUE(a1.Perform(make_tuple()) == NULL);

  const Action<const char*(bool)> a2 = ReturnNull();  // NOLINT
  EXPECT_TRUE(a2.Perform(make_tuple(true)) == NULL);
}

#if GTEST_HAS_STD_UNIQUE_PTR_
// Tests that ReturnNull() returns NULL for shared_ptr and unique_ptr returning
// functions.
TEST(ReturnNullTest, WorksInSmartPointerReturningFunction) {
  const Action<std::unique_ptr<const int>()> a1 = ReturnNull();
  EXPECT_TRUE(a1.Perform(make_tuple()) == nullptr);

  const Action<std::shared_ptr<int>(std::string)> a2 = ReturnNull();
  EXPECT_TRUE(a2.Perform(make_tuple("foo")) == nullptr);
}
#endif  // GTEST_HAS_STD_UNIQUE_PTR_

// Tests that ReturnRef(v) works for reference types.
TEST(ReturnRefTest, WorksForReference) {
  const int n = 0;
  const Action<const int&(bool)> ret = ReturnRef(n);  // NOLINT

  EXPECT_EQ(&n, &ret.Perform(make_tuple(true)));
}

// Tests that ReturnRef(v) is covariant.
TEST(ReturnRefTest, IsCovariant) {
  Base base;
  Derived derived;
  Action<Base&()> a = ReturnRef(base);
  EXPECT_EQ(&base, &a.Perform(make_tuple()));

  a = ReturnRef(derived);
  EXPECT_EQ(&derived, &a.Perform(make_tuple()));
}

// Tests that ReturnRefOfCopy(v) works for reference types.
TEST(ReturnRefOfCopyTest, WorksForReference) {
  int n = 42;
  const Action<const int&()> ret = ReturnRefOfCopy(n);

  EXPECT_NE(&n, &ret.Perform(make_tuple()));
  EXPECT_EQ(42, ret.Perform(make_tuple()));

  n = 43;
  EXPECT_NE(&n, &ret.Perform(make_tuple()));
  EXPECT_EQ(42, ret.Perform(make_tuple()));
}

// Tests that ReturnRefOfCopy(v) is covariant.
TEST(ReturnRefOfCopyTest, IsCovariant) {
  Base base;
  Derived derived;
  Action<Base&()> a = ReturnRefOfCopy(base);
  EXPECT_NE(&base, &a.Perform(make_tuple()));

  a = ReturnRefOfCopy(derived);
  EXPECT_NE(&derived, &a.Perform(make_tuple()));
}

// Tests that DoDefault() does the default action for the mock method.

class MockClass {
 public:
  MockClass() {}

  MOCK_METHOD1(IntFunc, int(bool flag));  // NOLINT
  MOCK_METHOD0(Foo, MyNonDefaultConstructible());
#if GTEST_HAS_STD_UNIQUE_PTR_
  MOCK_METHOD0(MakeUnique, std::unique_ptr<int>());
  MOCK_METHOD0(MakeUniqueBase, std::unique_ptr<Base>());
  MOCK_METHOD0(MakeVectorUnique, std::vector<std::unique_ptr<int>>());
#endif

 private:
  GTEST_DISALLOW_COPY_AND_ASSIGN_(MockClass);
};

// Tests that DoDefault() returns the built-in default value for the
// return type by default.
TEST(DoDefaultTest, ReturnsBuiltInDefaultValueByDefault) {
  MockClass mock;
  EXPECT_CALL(mock, IntFunc(_))
      .WillOnce(DoDefault());
  EXPECT_EQ(0, mock.IntFunc(true));
}

// Tests that DoDefault() throws (when exceptions are enabled) or aborts
// the process when there is no built-in default value for the return type.
TEST(DoDefaultDeathTest, DiesForUnknowType) {
  MockClass mock;
  EXPECT_CALL(mock, Foo())
      .WillRepeatedly(DoDefault());
#if GTEST_HAS_EXCEPTIONS
  EXPECT_ANY_THROW(mock.Foo());
#else
  EXPECT_DEATH_IF_SUPPORTED({
    mock.Foo();
  }, "");
#endif
}

// Tests that using DoDefault() inside a composite action leads to a
// run-time error.

void VoidFunc(bool /* flag */) {}

TEST(DoDefaultDeathTest, DiesIfUsedInCompositeAction) {
  MockClass mock;
  EXPECT_CALL(mock, IntFunc(_))
      .WillRepeatedly(DoAll(Invoke(VoidFunc),
                            DoDefault()));

  // Ideally we should verify the error message as well.  Sadly,
  // EXPECT_DEATH() can only capture stderr, while Google Mock's
  // errors are printed on stdout.  Therefore we have to settle for
  // not verifying the message.
  EXPECT_DEATH_IF_SUPPORTED({
    mock.IntFunc(true);
  }, "");
}

// Tests that DoDefault() returns the default value set by
// DefaultValue<T>::Set() when it's not overriden by an ON_CALL().
TEST(DoDefaultTest, ReturnsUserSpecifiedPerTypeDefaultValueWhenThereIsOne) {
  DefaultValue<int>::Set(1);
  MockClass mock;
  EXPECT_CALL(mock, IntFunc(_))
      .WillOnce(DoDefault());
  EXPECT_EQ(1, mock.IntFunc(false));
  DefaultValue<int>::Clear();
}

// Tests that DoDefault() does the action specified by ON_CALL().
TEST(DoDefaultTest, DoesWhatOnCallSpecifies) {
  MockClass mock;
  ON_CALL(mock, IntFunc(_))
      .WillByDefault(Return(2));
  EXPECT_CALL(mock, IntFunc(_))
      .WillOnce(DoDefault());
  EXPECT_EQ(2, mock.IntFunc(false));
}

// Tests that using DoDefault() in ON_CALL() leads to a run-time failure.
TEST(DoDefaultTest, CannotBeUsedInOnCall) {
  MockClass mock;
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    ON_CALL(mock, IntFunc(_))
      .WillByDefault(DoDefault());
  }, "DoDefault() cannot be used in ON_CALL()");
}

// Tests that SetArgPointee<N>(v) sets the variable pointed to by
// the N-th (0-based) argument to v.
TEST(SetArgPointeeTest, SetsTheNthPointee) {
  typedef void MyFunction(bool, int*, char*);
  Action<MyFunction> a = SetArgPointee<1>(2);

  int n = 0;
  char ch = '\0';
  a.Perform(make_tuple(true, &n, &ch));
  EXPECT_EQ(2, n);
  EXPECT_EQ('\0', ch);

  a = SetArgPointee<2>('a');
  n = 0;
  ch = '\0';
  a.Perform(make_tuple(true, &n, &ch));
  EXPECT_EQ(0, n);
  EXPECT_EQ('a', ch);
}

#if !((GTEST_GCC_VER_ && GTEST_GCC_VER_ < 40000) || GTEST_OS_SYMBIAN)
// Tests that SetArgPointee<N>() accepts a string literal.
// GCC prior to v4.0 and the Symbian compiler do not support this.
TEST(SetArgPointeeTest, AcceptsStringLiteral) {
  typedef void MyFunction(std::string*, const char**);
  Action<MyFunction> a = SetArgPointee<0>("hi");
  std::string str;
  const char* ptr = NULL;
  a.Perform(make_tuple(&str, &ptr));
  EXPECT_EQ("hi", str);
  EXPECT_TRUE(ptr == NULL);

  a = SetArgPointee<1>("world");
  str = "";
  a.Perform(make_tuple(&str, &ptr));
  EXPECT_EQ("", str);
  EXPECT_STREQ("world", ptr);
}

TEST(SetArgPointeeTest, AcceptsWideStringLiteral) {
  typedef void MyFunction(const wchar_t**);
  Action<MyFunction> a = SetArgPointee<0>(L"world");
  const wchar_t* ptr = NULL;
  a.Perform(make_tuple(&ptr));
  EXPECT_STREQ(L"world", ptr);

# if GTEST_HAS_STD_WSTRING

  typedef void MyStringFunction(std::wstring*);
  Action<MyStringFunction> a2 = SetArgPointee<0>(L"world");
  std::wstring str = L"";
  a2.Perform(make_tuple(&str));
  EXPECT_EQ(L"world", str);

# endif
}
#endif

// Tests that SetArgPointee<N>() accepts a char pointer.
TEST(SetArgPointeeTest, AcceptsCharPointer) {
  typedef void MyFunction(bool, std::string*, const char**);
  const char* const hi = "hi";
  Action<MyFunction> a = SetArgPointee<1>(hi);
  std::string str;
  const char* ptr = NULL;
  a.Perform(make_tuple(true, &str, &ptr));
  EXPECT_EQ("hi", str);
  EXPECT_TRUE(ptr == NULL);

  char world_array[] = "world";
  char* const world = world_array;
  a = SetArgPointee<2>(world);
  str = "";
  a.Perform(make_tuple(true, &str, &ptr));
  EXPECT_EQ("", str);
  EXPECT_EQ(world, ptr);
}

TEST(SetArgPointeeTest, AcceptsWideCharPointer) {
  typedef void MyFunction(bool, const wchar_t**);
  const wchar_t* const hi = L"hi";
  Action<MyFunction> a = SetArgPointee<1>(hi);
  const wchar_t* ptr = NULL;
  a.Perform(make_tuple(true, &ptr));
  EXPECT_EQ(hi, ptr);

# if GTEST_HAS_STD_WSTRING

  typedef void MyStringFunction(bool, std::wstring*);
  wchar_t world_array[] = L"world";
  wchar_t* const world = world_array;
  Action<MyStringFunction> a2 = SetArgPointee<1>(world);
  std::wstring str;
  a2.Perform(make_tuple(true, &str));
  EXPECT_EQ(world_array, str);
# endif
}

#if GTEST_HAS_PROTOBUF_

// Tests that SetArgPointee<N>(proto_buffer) sets the v1 protobuf
// variable pointed to by the N-th (0-based) argument to proto_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProtoBufferType) {
  TestMessage* const msg = new TestMessage;
  msg->set_member("yes");
  TestMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, TestMessage*)> a = SetArgPointee<1>(*msg);
  // SetArgPointee<N>(proto_buffer) makes a copy of proto_buffer
  // s.t. the action works even when the original proto_buffer has
  // died.  We ensure this behavior by deleting msg before using the
  // action.
  delete msg;

  TestMessage dest;
  EXPECT_FALSE(orig_msg.Equals(dest));
  a.Perform(make_tuple(true, &dest));
  EXPECT_TRUE(orig_msg.Equals(dest));
}

// Tests that SetArgPointee<N>(proto_buffer) sets the
// ::ProtocolMessage variable pointed to by the N-th (0-based)
// argument to proto_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProtoBufferBaseType) {
  TestMessage* const msg = new TestMessage;
  msg->set_member("yes");
  TestMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, ::ProtocolMessage*)> a = SetArgPointee<1>(*msg);
  // SetArgPointee<N>(proto_buffer) makes a copy of proto_buffer
  // s.t. the action works even when the original proto_buffer has
  // died.  We ensure this behavior by deleting msg before using the
  // action.
  delete msg;

  TestMessage dest;
  ::ProtocolMessage* const dest_base = &dest;
  EXPECT_FALSE(orig_msg.Equals(dest));
  a.Perform(make_tuple(true, dest_base));
  EXPECT_TRUE(orig_msg.Equals(dest));
}

// Tests that SetArgPointee<N>(proto2_buffer) sets the v2
// protobuf variable pointed to by the N-th (0-based) argument to
// proto2_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProto2BufferType) {
  using testing::internal::FooMessage;
  FooMessage* const msg = new FooMessage;
  msg->set_int_field(2);
  msg->set_string_field("hi");
  FooMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, FooMessage*)> a = SetArgPointee<1>(*msg);
  // SetArgPointee<N>(proto2_buffer) makes a copy of
  // proto2_buffer s.t. the action works even when the original
  // proto2_buffer has died.  We ensure this behavior by deleting msg
  // before using the action.
  delete msg;

  FooMessage dest;
  dest.set_int_field(0);
  a.Perform(make_tuple(true, &dest));
  EXPECT_EQ(2, dest.int_field());
  EXPECT_EQ("hi", dest.string_field());
}

// Tests that SetArgPointee<N>(proto2_buffer) sets the
// proto2::Message variable pointed to by the N-th (0-based) argument
// to proto2_buffer.
TEST(SetArgPointeeTest, SetsTheNthPointeeOfProto2BufferBaseType) {
  using testing::internal::FooMessage;
  FooMessage* const msg = new FooMessage;
  msg->set_int_field(2);
  msg->set_string_field("hi");
  FooMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, ::proto2::Message*)> a = SetArgPointee<1>(*msg);
  // SetArgPointee<N>(proto2_buffer) makes a copy of
  // proto2_buffer s.t. the action works even when the original
  // proto2_buffer has died.  We ensure this behavior by deleting msg
  // before using the action.
  delete msg;

  FooMessage dest;
  dest.set_int_field(0);
  ::proto2::Message* const dest_base = &dest;
  a.Perform(make_tuple(true, dest_base));
  EXPECT_EQ(2, dest.int_field());
  EXPECT_EQ("hi", dest.string_field());
}

#endif  // GTEST_HAS_PROTOBUF_

// Tests that SetArgumentPointee<N>(v) sets the variable pointed to by
// the N-th (0-based) argument to v.
TEST(SetArgumentPointeeTest, SetsTheNthPointee) {
  typedef void MyFunction(bool, int*, char*);
  Action<MyFunction> a = SetArgumentPointee<1>(2);

  int n = 0;
  char ch = '\0';
  a.Perform(make_tuple(true, &n, &ch));
  EXPECT_EQ(2, n);
  EXPECT_EQ('\0', ch);

  a = SetArgumentPointee<2>('a');
  n = 0;
  ch = '\0';
  a.Perform(make_tuple(true, &n, &ch));
  EXPECT_EQ(0, n);
  EXPECT_EQ('a', ch);
}

#if GTEST_HAS_PROTOBUF_

// Tests that SetArgumentPointee<N>(proto_buffer) sets the v1 protobuf
// variable pointed to by the N-th (0-based) argument to proto_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProtoBufferType) {
  TestMessage* const msg = new TestMessage;
  msg->set_member("yes");
  TestMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, TestMessage*)> a = SetArgumentPointee<1>(*msg);
  // SetArgumentPointee<N>(proto_buffer) makes a copy of proto_buffer
  // s.t. the action works even when the original proto_buffer has
  // died.  We ensure this behavior by deleting msg before using the
  // action.
  delete msg;

  TestMessage dest;
  EXPECT_FALSE(orig_msg.Equals(dest));
  a.Perform(make_tuple(true, &dest));
  EXPECT_TRUE(orig_msg.Equals(dest));
}

// Tests that SetArgumentPointee<N>(proto_buffer) sets the
// ::ProtocolMessage variable pointed to by the N-th (0-based)
// argument to proto_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProtoBufferBaseType) {
  TestMessage* const msg = new TestMessage;
  msg->set_member("yes");
  TestMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, ::ProtocolMessage*)> a = SetArgumentPointee<1>(*msg);
  // SetArgumentPointee<N>(proto_buffer) makes a copy of proto_buffer
  // s.t. the action works even when the original proto_buffer has
  // died.  We ensure this behavior by deleting msg before using the
  // action.
  delete msg;

  TestMessage dest;
  ::ProtocolMessage* const dest_base = &dest;
  EXPECT_FALSE(orig_msg.Equals(dest));
  a.Perform(make_tuple(true, dest_base));
  EXPECT_TRUE(orig_msg.Equals(dest));
}

// Tests that SetArgumentPointee<N>(proto2_buffer) sets the v2
// protobuf variable pointed to by the N-th (0-based) argument to
// proto2_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProto2BufferType) {
  using testing::internal::FooMessage;
  FooMessage* const msg = new FooMessage;
  msg->set_int_field(2);
  msg->set_string_field("hi");
  FooMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, FooMessage*)> a = SetArgumentPointee<1>(*msg);
  // SetArgumentPointee<N>(proto2_buffer) makes a copy of
  // proto2_buffer s.t. the action works even when the original
  // proto2_buffer has died.  We ensure this behavior by deleting msg
  // before using the action.
  delete msg;

  FooMessage dest;
  dest.set_int_field(0);
  a.Perform(make_tuple(true, &dest));
  EXPECT_EQ(2, dest.int_field());
  EXPECT_EQ("hi", dest.string_field());
}

// Tests that SetArgumentPointee<N>(proto2_buffer) sets the
// proto2::Message variable pointed to by the N-th (0-based) argument
// to proto2_buffer.
TEST(SetArgumentPointeeTest, SetsTheNthPointeeOfProto2BufferBaseType) {
  using testing::internal::FooMessage;
  FooMessage* const msg = new FooMessage;
  msg->set_int_field(2);
  msg->set_string_field("hi");
  FooMessage orig_msg;
  orig_msg.CopyFrom(*msg);

  Action<void(bool, ::proto2::Message*)> a = SetArgumentPointee<1>(*msg);
  // SetArgumentPointee<N>(proto2_buffer) makes a copy of
  // proto2_buffer s.t. the action works even when the original
  // proto2_buffer has died.  We ensure this behavior by deleting msg
  // before using the action.
  delete msg;

  FooMessage dest;
  dest.set_int_field(0);
  ::proto2::Message* const dest_base = &dest;
  a.Perform(make_tuple(true, dest_base));
  EXPECT_EQ(2, dest.int_field());
  EXPECT_EQ("hi", dest.string_field());
}

#endif  // GTEST_HAS_PROTOBUF_

// Sample functions and functors for testing Invoke() and etc.
int Nullary() { return 1; }

class NullaryFunctor {
 public:
  int operator()() { return 2; }
};

bool g_done = false;
void VoidNullary() { g_done = true; }

class VoidNullaryFunctor {
 public:
  void operator()() { g_done = true; }
};

class Foo {
 public:
  Foo() : value_(123) {}

  int Nullary() const { return value_; }

 private:
  int value_;
};

// Tests InvokeWithoutArgs(function).
TEST(InvokeWithoutArgsTest, Function) {
  // As an action that takes one argument.
  Action<int(int)> a = InvokeWithoutArgs(Nullary);  // NOLINT
  EXPECT_EQ(1, a.Perform(make_tuple(2)));

  // As an action that takes two arguments.
  Action<int(int, double)> a2 = InvokeWithoutArgs(Nullary);  // NOLINT
  EXPECT_EQ(1, a2.Perform(make_tuple(2, 3.5)));

  // As an action that returns void.
  Action<void(int)> a3 = InvokeWithoutArgs(VoidNullary);  // NOLINT
  g_done = false;
  a3.Perform(make_tuple(1));
  EXPECT_TRUE(g_done);
}

// Tests InvokeWithoutArgs(functor).
TEST(InvokeWithoutArgsTest, Functor) {
  // As an action that takes no argument.
  Action<int()> a = InvokeWithoutArgs(NullaryFunctor());  // NOLINT
  EXPECT_EQ(2, a.Perform(make_tuple()));

  // As an action that takes three arguments.
  Action<int(int, double, char)> a2 =  // NOLINT
      InvokeWithoutArgs(NullaryFunctor());
  EXPECT_EQ(2, a2.Perform(make_tuple(3, 3.5, 'a')));

  // As an action that returns void.
  Action<void()> a3 = InvokeWithoutArgs(VoidNullaryFunctor());
  g_done = false;
  a3.Perform(make_tuple());
  EXPECT_TRUE(g_done);
}

// Tests InvokeWithoutArgs(obj_ptr, method).
TEST(InvokeWithoutArgsTest, Method) {
  Foo foo;
  Action<int(bool, char)> a =  // NOLINT
      InvokeWithoutArgs(&foo, &Foo::Nullary);
  EXPECT_EQ(123, a.Perform(make_tuple(true, 'a')));
}

// Tests using IgnoreResult() on a polymorphic action.
TEST(IgnoreResultTest, PolymorphicAction) {
  Action<void(int)> a = IgnoreResult(Return(5));  // NOLINT
  a.Perform(make_tuple(1));
}

// Tests using IgnoreResult() on a monomorphic action.

int ReturnOne() {
  g_done = true;
  return 1;
}

TEST(IgnoreResultTest, MonomorphicAction) {
  g_done = false;
  Action<void()> a = IgnoreResult(Invoke(ReturnOne));
  a.Perform(make_tuple());
  EXPECT_TRUE(g_done);
}

// Tests using IgnoreResult() on an action that returns a class type.

MyNonDefaultConstructible ReturnMyNonDefaultConstructible(double /* x */) {
  g_done = true;
  return MyNonDefaultConstructible(42);
}

TEST(IgnoreResultTest, ActionReturningClass) {
  g_done = false;
  Action<void(int)> a =
      IgnoreResult(Invoke(ReturnMyNonDefaultConstructible));  // NOLINT
  a.Perform(make_tuple(2));
  EXPECT_TRUE(g_done);
}

TEST(AssignTest, Int) {
  int x = 0;
  Action<void(int)> a = Assign(&x, 5);
  a.Perform(make_tuple(0));
  EXPECT_EQ(5, x);
}

TEST(AssignTest, String) {
  ::std::string x;
  Action<void(void)> a = Assign(&x, "Hello, world");
  a.Perform(make_tuple());
  EXPECT_EQ("Hello, world", x);
}

TEST(AssignTest, CompatibleTypes) {
  double x = 0;
  Action<void(int)> a = Assign(&x, 5);
  a.Perform(make_tuple(0));
  EXPECT_DOUBLE_EQ(5, x);
}

#if !GTEST_OS_WINDOWS_MOBILE

class SetErrnoAndReturnTest : public testing::Test {
 protected:
  virtual void SetUp() { errno = 0; }
  virtual void TearDown() { errno = 0; }
};

TEST_F(SetErrnoAndReturnTest, Int) {
  Action<int(void)> a = SetErrnoAndReturn(ENOTTY, -5);
  EXPECT_EQ(-5, a.Perform(make_tuple()));
  EXPECT_EQ(ENOTTY, errno);
}

TEST_F(SetErrnoAndReturnTest, Ptr) {
  int x;
  Action<int*(void)> a = SetErrnoAndReturn(ENOTTY, &x);
  EXPECT_EQ(&x, a.Perform(make_tuple()));
  EXPECT_EQ(ENOTTY, errno);
}

TEST_F(SetErrnoAndReturnTest, CompatibleTypes) {
  Action<double()> a = SetErrnoAndReturn(EINVAL, 5);
  EXPECT_DOUBLE_EQ(5.0, a.Perform(make_tuple()));
  EXPECT_EQ(EINVAL, errno);
}

#endif  // !GTEST_OS_WINDOWS_MOBILE

// Tests ByRef().

// Tests that ReferenceWrapper<T> is copyable.
TEST(ByRefTest, IsCopyable) {
  const std::string s1 = "Hi";
  const std::string s2 = "Hello";

  ::testing::internal::ReferenceWrapper<const std::string> ref_wrapper =
      ByRef(s1);
  const std::string& r1 = ref_wrapper;
  EXPECT_EQ(&s1, &r1);

  // Assigns a new value to ref_wrapper.
  ref_wrapper = ByRef(s2);
  const std::string& r2 = ref_wrapper;
  EXPECT_EQ(&s2, &r2);

  ::testing::internal::ReferenceWrapper<const std::string> ref_wrapper1 =
      ByRef(s1);
  // Copies ref_wrapper1 to ref_wrapper.
  ref_wrapper = ref_wrapper1;
  const std::string& r3 = ref_wrapper;
  EXPECT_EQ(&s1, &r3);
}

// Tests using ByRef() on a const value.
TEST(ByRefTest, ConstValue) {
  const int n = 0;
  // int& ref = ByRef(n);  // This shouldn't compile - we have a
                           // negative compilation test to catch it.
  const int& const_ref = ByRef(n);
  EXPECT_EQ(&n, &const_ref);
}

// Tests using ByRef() on a non-const value.
TEST(ByRefTest, NonConstValue) {
  int n = 0;

  // ByRef(n) can be used as either an int&,
  int& ref = ByRef(n);
  EXPECT_EQ(&n, &ref);

  // or a const int&.
  const int& const_ref = ByRef(n);
  EXPECT_EQ(&n, &const_ref);
}

// Tests explicitly specifying the type when using ByRef().
TEST(ByRefTest, ExplicitType) {
  int n = 0;
  const int& r1 = ByRef<const int>(n);
  EXPECT_EQ(&n, &r1);

  // ByRef<char>(n);  // This shouldn't compile - we have a negative
                      // compilation test to catch it.

  Derived d;
  Derived& r2 = ByRef<Derived>(d);
  EXPECT_EQ(&d, &r2);

  const Derived& r3 = ByRef<const Derived>(d);
  EXPECT_EQ(&d, &r3);

  Base& r4 = ByRef<Base>(d);
  EXPECT_EQ(&d, &r4);

  const Base& r5 = ByRef<const Base>(d);
  EXPECT_EQ(&d, &r5);

  // The following shouldn't compile - we have a negative compilation
  // test for it.
  //
  // Base b;
  // ByRef<Derived>(b);
}

// Tests that Google Mock prints expression ByRef(x) as a reference to x.
TEST(ByRefTest, PrintsCorrectly) {
  int n = 42;
  ::std::stringstream expected, actual;
  testing::internal::UniversalPrinter<const int&>::Print(n, &expected);
  testing::internal::UniversalPrint(ByRef(n), &actual);
  EXPECT_EQ(expected.str(), actual.str());
}

#if GTEST_HAS_STD_UNIQUE_PTR_

std::unique_ptr<int> UniquePtrSource() {
  return std::unique_ptr<int>(new int(19));
}

std::vector<std::unique_ptr<int>> VectorUniquePtrSource() {
  std::vector<std::unique_ptr<int>> out;
  out.emplace_back(new int(7));
  return out;
}

TEST(MockMethodTest, CanReturnMoveOnlyValue_Return) {
  MockClass mock;
  std::unique_ptr<int> i(new int(19));
  EXPECT_CALL(mock, MakeUnique()).WillOnce(Return(ByMove(std::move(i))));
  EXPECT_CALL(mock, MakeVectorUnique())
      .WillOnce(Return(ByMove(VectorUniquePtrSource())));
  Derived* d = new Derived;
  EXPECT_CALL(mock, MakeUniqueBase())
      .WillOnce(Return(ByMove(std::unique_ptr<Derived>(d))));

  std::unique_ptr<int> result1 = mock.MakeUnique();
  EXPECT_EQ(19, *result1);

  std::vector<std::unique_ptr<int>> vresult = mock.MakeVectorUnique();
  EXPECT_EQ(1u, vresult.size());
  EXPECT_NE(nullptr, vresult[0]);
  EXPECT_EQ(7, *vresult[0]);

  std::unique_ptr<Base> result2 = mock.MakeUniqueBase();
  EXPECT_EQ(d, result2.get());
}

TEST(MockMethodTest, CanReturnMoveOnlyValue_DoAllReturn) {
  testing::MockFunction<void()> mock_function;
  MockClass mock;
  std::unique_ptr<int> i(new int(19));
  EXPECT_CALL(mock_function, Call());
  EXPECT_CALL(mock, MakeUnique()).WillOnce(DoAll(
      InvokeWithoutArgs(&mock_function, &testing::MockFunction<void()>::Call),
      Return(ByMove(std::move(i)))));

  std::unique_ptr<int> result1 = mock.MakeUnique();
  EXPECT_EQ(19, *result1);
}

TEST(MockMethodTest, CanReturnMoveOnlyValue_Invoke) {
  MockClass mock;

  // Check default value
  DefaultValue<std::unique_ptr<int>>::SetFactory([] {
    return std::unique_ptr<int>(new int(42));
  });
  EXPECT_EQ(42, *mock.MakeUnique());

  EXPECT_CALL(mock, MakeUnique()).WillRepeatedly(Invoke(UniquePtrSource));
  EXPECT_CALL(mock, MakeVectorUnique())
      .WillRepeatedly(Invoke(VectorUniquePtrSource));
  std::unique_ptr<int> result1 = mock.MakeUnique();
  EXPECT_EQ(19, *result1);
  std::unique_ptr<int> result2 = mock.MakeUnique();
  EXPECT_EQ(19, *result2);
  EXPECT_NE(result1, result2);

  std::vector<std::unique_ptr<int>> vresult = mock.MakeVectorUnique();
  EXPECT_EQ(1u, vresult.size());
  EXPECT_NE(nullptr, vresult[0]);
  EXPECT_EQ(7, *vresult[0]);
}

#endif  // GTEST_HAS_STD_UNIQUE_PTR_

}  // Unnamed namespace