CLASS {{p}}t20_hidden DEFINITION PUBLIC FINAL CREATE PUBLIC
  FOR TESTING DURATION SHORT RISK LEVEL HARMLESS.
  PRIVATE SECTION.
    CLASS-DATA go_env TYPE REF TO if_cds_test_environment.
    CLASS-METHODS class_setup.
    CLASS-METHODS class_teardown.
    METHODS setup.
    METHODS revenue_in_period FOR TESTING.
    METHODS sold_quantity_in_period FOR TESTING.
    METHODS books_in_period FOR TESTING.
    METHODS title_and_category FOR TESTING.
    METHODS revenue_has_two_decimals FOR TESTING.
    METHODS period_limits_included FOR TESTING.
    METHODS empty_period FOR TESTING.
    METHODS book_outside_period_hidden FOR TESTING.
ENDCLASS.


CLASS {{p}}t20_hidden IMPLEMENTATION.
  METHOD class_setup.
    go_env = cl_cds_test_environment=>create( i_for_entity = '{{P}}I_BOOK_REVENUE' ).
  ENDMETHOD.

  METHOD class_teardown.
    go_env->destroy( ).
  ENDMETHOD.

  METHOD setup.
    DATA lt_book TYPE STANDARD TABLE OF {{p}}book WITH EMPTY KEY.
    DATA lt_sale TYPE STANDARD TABLE OF {{p}}sale WITH EMPTY KEY.
    go_env->clear_doubles( ).
    lt_book = VALUE #(
      ( book_id = 'B1' title = 'ABAP Basics'  category = 'TECH'    price = '40.00' )
      ( book_id = 'B2' title = 'SQL Guide'    category = 'TECH'    price = '25.50' )
      ( book_id = 'B3' title = 'Cooking Fun'  category = 'HOME'    price = '15.00' )
      ( book_id = 'B4' title = 'Space Novel'  category = 'FICTION' price = '9.99' )
      ( book_id = 'B5' title = 'Old Book'     category = 'TECH'    price = '5.00' ) ).
    lt_sale = VALUE #(
      ( book_id = 'B1' sale_date = '20240110' quantity = 2 )
      ( book_id = 'B1' sale_date = '20240215' quantity = 1 )
      ( book_id = 'B1' sale_date = '20240601' quantity = 5 )
      ( book_id = 'B2' sale_date = '20240120' quantity = 4 )
      ( book_id = 'B3' sale_date = '20240305' quantity = 3 )
      ( book_id = 'B4' sale_date = '20240201' quantity = 1 )
      ( book_id = 'B4' sale_date = '20240202' quantity = 2 )
      ( book_id = 'B5' sale_date = '20240615' quantity = 7 ) ).
    go_env->insert_test_data( lt_book ).
    go_env->insert_test_data( lt_sale ).
  ENDMETHOD.

  METHOD revenue_in_period.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240101'.
    lv_to = '20240331'.
    SELECT SINGLE revenue
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      WHERE book_id = 'B1'
      INTO @DATA(lv_revenue).
    cl_abap_unit_assert=>assert_equals(
      exp = CONV decfloat34( '120.00' )
      act = CONV decfloat34( lv_revenue ) ).
  ENDMETHOD.

  METHOD sold_quantity_in_period.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240101'.
    lv_to = '20240331'.
    SELECT SINGLE sold_quantity
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      WHERE book_id = 'B1'
      INTO @DATA(lv_sold).
    cl_abap_unit_assert=>assert_equals( exp = 3 act = CONV i( lv_sold ) ).
  ENDMETHOD.

  METHOD books_in_period.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240101'.
    lv_to = '20240331'.
    SELECT COUNT(*)
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      INTO @DATA(lv_rows).
    cl_abap_unit_assert=>assert_equals( exp = 4 act = lv_rows ).
  ENDMETHOD.

  METHOD title_and_category.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240101'.
    lv_to = '20240331'.
    SELECT SINGLE title, category
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      WHERE book_id = 'B2'
      INTO @DATA(ls_row).
    cl_abap_unit_assert=>assert_equals( exp = 'SQL Guide' act = ls_row-title ).
    cl_abap_unit_assert=>assert_equals( exp = 'TECH' act = ls_row-category ).
  ENDMETHOD.

  METHOD revenue_has_two_decimals.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240101'.
    lv_to = '20240331'.
    SELECT SINGLE revenue
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      WHERE book_id = 'B4'
      INTO @DATA(lv_revenue).
    cl_abap_unit_assert=>assert_equals(
      exp = CONV decfloat34( '29.97' )
      act = CONV decfloat34( lv_revenue ) ).
  ENDMETHOD.

  METHOD period_limits_included.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240110'.
    lv_to = '20240110'.
    SELECT SINGLE sold_quantity
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      WHERE book_id = 'B1'
      INTO @DATA(lv_sold_b1).
    cl_abap_unit_assert=>assert_equals( exp = 2 act = CONV i( lv_sold_b1 ) ).

    lv_from = '20240305'.
    lv_to = '20240305'.
    SELECT SINGLE sold_quantity
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      WHERE book_id = 'B3'
      INTO @DATA(lv_sold_b3).
    cl_abap_unit_assert=>assert_equals( exp = 3 act = CONV i( lv_sold_b3 ) ).
  ENDMETHOD.

  METHOD empty_period.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240501'.
    lv_to = '20240531'.
    SELECT COUNT(*)
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      INTO @DATA(lv_rows).
    cl_abap_unit_assert=>assert_equals( exp = 0 act = lv_rows ).
  ENDMETHOD.

  METHOD book_outside_period_hidden.
    DATA lv_from TYPE d.
    DATA lv_to TYPE d.
    lv_from = '20240101'.
    lv_to = '20240331'.
    SELECT SINGLE book_id
      FROM {{p}}i_book_revenue( p_from = @lv_from, p_to = @lv_to )
      WHERE book_id = 'B5'
      INTO @DATA(lv_book).
    cl_abap_unit_assert=>assert_initial( lv_book ).
  ENDMETHOD.
ENDCLASS.