What if parameters passed don't matter?

To ignore the actual parameter when checking the number of times it was called:

​<TestMethod()>
Public Sub verifyCalledWithParams_TimesCalled_IgnorParams()

    Dim a As New AClass
    Isolate.WhenCalled(Sub() a.DoWorkWithParams(Nothing)).CallOriginal()

    a.DoWorkWithParams(0)
    a.DoWorkWithParams(1)
    a.DoWorkWithParams(15)

    Dim timesCallsd = Isolate.Verify.GetTimesCalled(Sub() a.DoWorkWithParams(Nothing))

    Assert.AreEqual(3, timesCallsd)

End Sub

To Check if a method was called regardless to parameters just use WasCalledWithAnyArguments:

<TestMethod()>
Public Sub verifyCalledWithParams_IgnorParams()

    Dim a As New AClass
    Isolate.WhenCalled(Sub() a.DoWorkWithParams(Nothing)).CallOriginal()

    a.DoWorkWithParams(0)

    Isolate.Verify.WasCalledWithAnyArguments(Sub() a.DoWorkWithParams(Nothing))

End Sub