我有一个控制器测试库,我用它来处理测试中的大量冗余代码。在内部,它采用通用TDataSource
参数,该参数应该是首先包含EF代码IDbSet
的接口。在运行时,测试基础使用RhinoMocks _MockDataSource = MockRepository.GenerateMock(Of TDataSource)()
构建模拟TDataSource。然后我使用反射来获取接口的所有IDbSet属性并为它们分配模拟数据库集。 (注意:这适用于虚拟类,只是接口不起作用)。
当我尝试通过调用IDbSet(Of TEntity)
设置其中一个propertyInfo.SetValue(dataSource, mockDbSet, Nothing)
属性的值时,它不会设置实际值。没有例外,它只是不起作用。我假设这是因为对象dataSource
实际上不是类型指定的TDataSource
,而是Castle.Proxies.IFakeDataSourceForTestingProxyf53f1730dba4492f8cafb9c731133d32
,它以某种方式拦截了我对SetValue
的调用。我该如何解决这个问题呢?
以下失败方法的完整代码:
Protected Sub InjectTestData(ParamArray data() As IEnumerable)
Dim dataSourceType As Type = GetType(TDataSource)
Dim dataSourceProperties() As PropertyInfo = dataSourceType.GetProperties(BindingFlags.Public Or BindingFlags.Instance)
'match up supplied data and required data sets
For i As Integer = LBound(data) To UBound(data) Step 1
Dim [set] As IEnumerable = data(i)
Dim setType As Type = [set].GetType()
If Not setType.IsGenericType Then
Throw New ArgumentException(String.Format("Parameter {0} of the data array was not a generic IEnumerable, could not add to any IDbSet.", i))
End If
Dim modelType As Type = setType.GetGenericArguments(0)
Dim dbSetType As Type = GetType(IDbSet(Of )).MakeGenericType({modelType})
Dim foundDbSet As Boolean
For Each [property] As PropertyInfo In dataSourceProperties
If dbSetType.IsAssignableFrom([property].PropertyType) Then
Dim fakeDbSet As Object = CreateFakeDbSet(modelType, [set])
[property].SetValue(_MockDataSource, fakeDbSet, Nothing)
foundDbSet = True
End If
Next
If Not foundDbSet Then Throw New ArgumentException(String.Format("Could not find an IDbSet(Of {0}) property on {1} to match parameter {2}", modelType.Name, dataSourceType.Name, i))
Next
'add empty lists to any data sets which are still null
For Each [property] As PropertyInfo In dataSourceProperties
If [property].GetValue(_MockDataSource, Nothing) Is Nothing Then
Dim modelType As Type = [property].PropertyType.GetGenericArguments(0)
Dim fakeDbSet As Object = CreateFakeDbSet(modelType)
[property].SetValue(_MockDataSource, fakeDbSet, Nothing)
End If
Next
End Sub