1 '=============================================================================================
2 'Name:Manish Kumar Sinha
3 'Email Address: manishkumarsinha@sify.com
4 'Test Case Name: Argument passing by Optional Keyword:
5 'O.P-1.0.0: An Optional parameter must specify a constant expression to be used a replacement
6 ' value if no argument is specified.When we omit one or more optional arguments in
7 ' the argument list, you use successive commas to mark their positions.
8 ' If we don't mark commas then it produce run time error
9 '=============================================================================================
12 Imports Nunit.Framework
16 _<Test, ExpectedException (GetType (System.InvalidCastException))>
17 Sub F(ByVal telephoneNo as Long, Optional ByVal code as Integer = 080,Optional ByVal code1 As Integer = 091, Optional ByRef name As String="Sinha")
18 if (code <> 080 and code1 <> 091 and name="Sinha")
19 Throw New System.Exception("#A1, Unexcepted behaviour in string of OP1_0_0")
23 Public Sub TestForException()
24 Dim telephoneNo As Long = 9886066432
25 Dim name As String ="Manish"