.net 如何在NUnit测试中测试属性是否引发异常？

如何在从C++-CLI调用的NUnit测试中测试属性（通常返回浮点值）是否引发异常？我试过以下方法，感觉应该有效：

System::Type^ type = System::NotImplementedException::typeid;
NUnit::Framework::TestDelegate^ delegateToTest = gcnew NUnit::Framework::TestDelegate(this, &(MyClass::MyProperty::get));
Assert::Throws(type, delegateToTest);

…但这给了我：

error C3352: 'float MyClass::MyProperty::get(void)' : the specified function does not match the delegate type 'void (void)'

---

您可以使用Assert:：Throws方法。您必须创建一个与此委托匹配的方法

void MethodThatThrows()
{
  MyClass::MyProperty::get;
}

void Test()
{
  System::Type^ type = System::NotImplementedException::typeid;
  NUnit::Framework::TestDelegate^ delegateToTest = gcnew NUnit::Framework::TestDelegate(this, MethodThatThrows);
  Assert::Throws(type, delegateToTest);
}

---

请参阅：

您可以使用Assert:：Throws方法。您必须创建一个与此委托匹配的方法

void MethodThatThrows()
{
  MyClass::MyProperty::get;
}

void Test()
{
  System::Type^ type = System::NotImplementedException::typeid;
  NUnit::Framework::TestDelegate^ delegateToTest = gcnew NUnit::Framework::TestDelegate(this, MethodThatThrows);
  Assert::Throws(type, delegateToTest);
}

---

请参阅：

Assert:：Throws将仅与返回void的方法一起使用。您正试图将其与返回浮点的方法一起使用

简单的解决方案是将读取的属性包装到方法中，并断言包装方法引发异常

void ReadMyProperty()
{
    float ignored = this.MyProperty;
}

System::Type^ type = System::NotImplementedException::typeid;
NUnit::Framework::TestDelegate^ delegateToTest = 
    gcnew NUnit::Framework::TestDelegate(this, &(MyClass::ReadMyProperty));
Assert::Throws(type, delegateToTest);

---

Assert：：Throws只适用于返回void的方法。您正试图将其与返回浮点的方法一起使用

简单的解决方案是将读取的属性包装到方法中，并断言包装方法引发异常

void ReadMyProperty()
{
    float ignored = this.MyProperty;
}

System::Type^ type = System::NotImplementedException::typeid;
NUnit::Framework::TestDelegate^ delegateToTest = 
    gcnew NUnit::Framework::TestDelegate(this, &(MyClass::ReadMyProperty));
Assert::Throws(type, delegateToTest);