构造函数获取参数时的GTest fixture?

时间:2013-12-10 14:28:37

标签: c++ googletest armadillo

我有一个简单的示例类。它有一个数据成员,它是指向犰狳矩阵的std :: vector指针。构造函数将这样的向量作为唯一参数。这是文件TClass.cpp

#include <armadillo>
#include <vector>

class TClass {
    private: 
        std::vector<arma::mat * > mats;
    public:
        TClass(std::vector<arma::mat * > m_);
        arma::mat * GetM( int which ){ return( mats.at(which) );};

};

TClass::TClass(std::vector<arma::mat * > m_){
    mats = m_;
}

我想构建一个GTest fixture来测试成员函数GetM。这就是我所做的:

#include <gtest/gtest.h> 
#include "TClass.cpp"


class TClassTest : public ::testing::Test {
 protected:
    int n;
    int m;
    std::vector<arma::mat * > M;

  virtual void SetUp() {
      n = 3;
      m = 2;
      arma::mat M1 =  arma::randu<arma::mat>(n,m);
      arma::mat M2 =  arma::randu<arma::mat>(n,m);
      M.push_back( &M1);
      M.push_back( &M2);
  }

  // virtual void TearDown() {}

  // initiate a TClass object
  TClass T(M);
};

// my test
TEST_F(TClassTest, CanGetM1){

    EXPECT_EQ( T.GetM(0), M.at(0) );

}

int main(int argc, char **argv) { 
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}

我用g++ TClassTest.cpp -o tclass -larmadillo编译它。它告诉我TClassTest.cpp:24: error: ‘M’ is not a type。我不明白为什么我不能在夹具定义中构造TClass对象?

1 个答案:

答案 0 :(得分:4)

无法在类TClassTest的声明中初始化对象T.你最近在写Java吗? ;-)

要初始化它,您可以执行以下操作:

class TClassTest : public ::testing::Test {
  // ... (rest of code is fine as is)
  virtual void SetUp() {
    // ...
    T = new TClass(M);
  }

  virtual void TearDown() { delete T; }

  TClass *T;
};