Can anyone explain the difference between these two tests?
If I test the method PersistTab1 with the first Test below, it passes.
Public Function PersistTab1(ByVal validate As Boolean)
Dim entity = View.Entity
Controller.EntityDocument = entity
Return False
End Function
With this test, it passes.
<TestMethod()> Public Sub PersistTab1()
Dim mocks As New MockRepository()
Dim mockController As IController = mocks.DynamicMock(Of
IController)()
Dim mockView As IView = mocks.DynamicMock(Of IView)()
Dim fakeEntity As New EntityDocument()
fakeEntity.SampleString1 = "xxx"
' Expectations: View.Entity gets accessed to set entity var
Rhino.Mocks.Expect.Call(mockView.Entity).Return(fakeEntity)
' controller's Entity prop gets set
mockController.EntityDocument = fakeEntity
mocks.ReplayAll()
Dim target As Form1 = New Form1()
target.View = mockView
target.Controller = mockController
Dim result As Boolean = target.PersistTab1(False)
Assert.IsFalse(result)
mocks.VerifyAll()
End Sub
But if I change the code being tested to access an inner property of
the object the code uses - the Entity document, then my test fails.
The test code throws an Null Reference exceptioin where I set the
expectation for the Controller's Entity property being set. Why?
Public Function PersistTab1(ByVal validate As Boolean)
Dim entity = View.Entity
Controller.Entity.SampleString1 = entity.SampleString1
Return False
End Function
I have a feeling that this is a sign that I'm not understanding mock
objects at some basic level.
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