如何用Rhino Mocks模拟IDbSet [英] How to mock IDbSet with Rhino Mocks

问题描述

我根本无法正常工作。我在测试中得到了以下代码：

I can't get this working at all. I've got this code in my test:

MockRepository repository = new MockRepository();
IDbSet<SystemUser> userSet = repository.StrictMock<IDbSet<SystemUser>>();
Expect.Call(userSet.Any(u => u.Id == "UserName")).Return(true);
// More code follows

但是它在上轰炸StrictMock 行，出现错误：

But it bombs out on the StrictMock line with the error:

System.TypeLoadException：方法'Create'on type
'来自程序集
'DynamicProxyGenAssembly2，Version = 0.0.0.0，Culture = neutral，
PublicKeyToken = a621a9e7e5c32e69的IDbSet`1Proxy1862178487664986a7bd03ad3b5c6f2c'试图隐式实现具有较弱类型参数约束的
接口方法

System.TypeLoadException: Method 'Create' on type 'IDbSet`1Proxy1862178487664986a7bd03ad3b5c6f2c' from assembly 'DynamicProxyGenAssembly2, Version=0.0.0.0, Culture=neutral, PublicKeyToken=a621a9e7e5c32e69' tried to implicitly implement an interface method with weaker type parameter constraints

有什么想法吗？

谢谢！

推荐答案

您遇到了Rhino.Mocks（版本3.6.0.0）在通用方法约束下存在的已知问题。

You have encountered a known issue that Rhino.Mocks (version 3.6.0.0) has with generic method constraints.

'Create'方法：

The 'Create' method:

TDerivedEntity Create<TDerivedEntity>() where TDerivedEntity : class, TEntity

由于约束而无法正确生成，其中TDeriv edEntity：类，TEntity 。

此处有关于此错误的更多信息：无法让RhinoMocks发出遵循通用类型限制规则的模拟

There is more information regarding the bug here : Can't get RhinoMocks to emit a mock that follows the generic type restriction rules

不幸的是，看来我们将不得不等待下一个Rhino.Mocks版本来解决此问题。

Unfortunately, it looks like we are going to have to wait for the next version of Rhino.Mocks to address the issue.

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