Mock Property Set in VB.Net Module

[Keith Knight]

Does anyone any ideas on how to mock a static property in a Vb.Net module?

I have attempted various solutions, all of which lead to JustMock throwing exceptions.

I am looking for something like:

Mock.ArrangeSet(Sub() VbModule.MyProperty = Arg.AnyString).DoNothing()
 




Any help would be appreciated.

[Ricky]

Hi Keith,

Thank you for bringing up the issue. ArrangeSet is meant to be used for setting up property assignments in C#  because Expression<TDelegate> does not support assignment inside lambda. If you notice closely, you will find that it is a simple action (only executes); thus should be used after Mock.Create / Mock.SetupStatic. But Visual Basic does not restrict this kind of operation. Therefore, you can directly do:

Mock.Arrange(Sub() VbModule.MyProperty = Arg.AnyString).DoNothing()

Since MyProperty is declared in a global scope, you can't set it up with SetupStatic. The only option is to partially mock it.

I wrote the test in the following the way and it is working fine:

<Test()>
  Public Sub ShouldAssertProperyFromModule()
      Mock.Arrange(Sub() VBModule.MyProperty = Arg.AnyString).Throws(New ArgumentException())
      Assert.Throws(Of ArgumentException)(Sub() VBModule.MyProperty = "test")
      Mock.Assert(Sub() VBModule.MyProperty = "test")
  End Sub

The test project is also attached to let you have a look. Please write back, if you are having  further issues.

Regards,
the Telerik team