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我想用 NUnit 测试我的混合代码 C++ dll (/clr)，我已经创建了一个测试项目，但出现了链接器错误：

error LNK2028: unresolved token (0A00057B) "public: __thiscall UtilityFunctions::UtilityFunctions(void)" (??0UtilityFunctions@@$$FQAE@XZ) referenced in function "public: __clrcall TestUtilityFunctions::TestUtilityFunctions(void)" (??0TestUtilityFunctions@@$$FQ$AAM@XZ)
error LNK2028: unresolved token (0A00057C) "public: int __thiscall UtilityFunctions::StringToInt(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)" (?StringToInt@UtilityFunctions@@$$FQAEHAAV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function "public: void __clrcall TestUtilityFunctions::Test_StringToInt(void)" (?Test_StringToInt@TestUtilityFunctions@@$$FQ$AAMXXZ)

-> 在 UnitTest dll 中添加要测试的混合模式 dll 作为参考

TestUtilityFunctions.h

#include <string>
#include <sstream>
#include <msclr/marshal.h>
#include <msclr/marshal_cppstd.h>

using namespace System::Text;
using namespace System::Collections::Generic;
using namespace msclr::interop;
using namespace NUnit::Framework;

using namespace IsoModuleTest;

using namespace std;

#pragma unmanaged
#include "UtilityFunctions.h"
#pragma managed

[TestFixture]
public ref class TestUtilityFunctions
{
public:
    TestUtilityFunctions()
    {   
        m_utilFunctions = new UtilityFunctions();
    }
    ~TestUtilityFunctions()
    {
        delete m_utilFunctions;
    }

    [Test]
    void Test_StringToInt()
    {                           
        Assert::AreEqual(m_utilFunctions->StringToInt((std::string)"12"), 12);
    }
private:    
    UtilityFunctions *m_utilFunctions;
};

这里需要任何其他步骤或有什么问题吗？

谢谢！

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