METHOD configuration_variants.

    DATA:  lo_currency_converter_double TYPE REF TO      if_td_currency_converter,
          lo_expense_manager          TYPE REF TO      cl_td_expense_manager,
          lv_total_expense            TYPE              i.

*create test double object
    lo_currency_converter_double ?= cl_abap_testdouble=>create( ‘if_td_currency_converter’ ).

*eg1: configuration for exporting parameters
    cl_abap_testdouble=>configure_call( lo_currency_converter_double )->set_parameter( name = ‘base_currency’  value = ‘EUR’
                                                                    )->set_parameter( name = ‘base_curr_amount’  value = 80 ).

    lo_currency_converter_double->convert_to_base_currency(
      EXPORTING
        amount          = 100
        source_currency = ‘USD’
    ).

*eg2: configuration ignoring one parameter. 55 gets returned if source currency = ‘USD’ , target currency = ‘EUR’ and any value  for amount.
    cl_abap_testdouble=>configure_call( lo_currency_converter_double )->returning( 55 )->ignore_parameter( ‘amount’ ).
    lo_currency_converter_double->convert(
      EXPORTING
        amount          = 0 “dummy value because amount is a non optional parameter
        source_currency = ‘USD’
        target_currency = ‘EUR’
    ).

*eg3: configuration ignoring all parameters. 55 gets returned for any input
    cl_abap_testdouble=>configure_call( lo_currency_converter_double )->returning( 55 )->ignore_all_parameters( ).
    lo_currency_converter_double->convert(
      EXPORTING
        amount          = 0 “dummy value
        source_currency = ‘USD’ “dummy value
        target_currency = ‘EUR’ “dummy value
    ).

  ENDMETHOD.