调用EXPECT_CALL时GTest失败

如何解决调用EXPECT_CALL时GTest失败

我正在尝试将GTest框架用于我的项目。我创建了一个示例代码以使用Test Fixture进行测试。

#include <gtest/gtest.h>
#include <gmock/gmock.h>
#include <iostream>

using testing::NiceMock;
using testing::Return;
enum class ValidationErrors : std::uint8_t
{
  kSuccess,kFailure,};
class Validation
{
 public:
  Validation(int Alg)
  {}
  virtual ValidationErrors Initialize()
  {
    std::cout << __FUNCTION__ << std::endl;
    return ValidationErrors::kSuccess;
  }
  virtual ~Validation() = default;
};
class ValidationMock : public Validation
{
 public:
  ValidationMock() : Validation(1)
  {}
  MOCK_METHOD0(Initialize,ValidationErrors());
};

class Send
{
 public:
  Send()
  {}
  Send(int id,std::unique_ptr<Validation> validator) : validator_(std::move(validator))
  {
    std::cout << __FUNCTION__ << std::endl;
  }
  void Start(const std::uint32_t& size)
  {
    std::cout << __FUNCTION__ << std::endl;
    validator_->Initialize();
  }
  std::unique_ptr<Validation> validator_;
};

using NiceValidationMock = NiceMock<ValidationMock>;
class SendTextFixture : public testing::Test
{
 public:
  SendTextFixture() : validator_(std::make_unique<NiceValidationMock>())
  {
    sendClass_ = Send(5,std::move(validator_));
  }
  std::unique_ptr<NiceValidationMock> validator_;
  Send sendClass_;
};
TEST_F(SendTextFixture,DemoTest)
{
  sendClass_.Start(1);
  EXPECT_CALL(*validator_,Initialize()).WillOnce(Return(ValidationErrors::kSuccess));
  EXPECT_TRUE(true);
}

我有Start类，它依赖于Validation类。因此，我为Validation创建了一个Mock类。在测试装置中，我试图将ValidationMock对象传递给Start类。 在ValidationMock类中，我为Initialize方法创建了一个模拟。

在TestCase中，遇到以下错误后，我尝试使用Initialize调用EXPECT_CALL方法。

1: [27630.783955]~DLT~  764~INFO     ~FIFO /tmp/dlt cannot be opened. Retrying later...
1: Running main() from gtest_main.cc
1: [==========] Running 1 test from 1 test case.
1: [----------] Global test environment set-up.
1: [----------] 1 test from SendTextFixture
1: [ RUN      ] SendTextFixture.DemoTest
1: Send
1: Start
1/1 Test #1: testpackage ......***Failed    0.32 sec

0% tests passed,1 tests failed out of 1

Total Test time (real) =   0.32 sec

我无法理解确切的问题是什么。以上测试治具方法是否存在任何错误？