CLASS {{p}}t_dive_stats_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 one_row_per_diver FOR TESTING.
    METHODS dive_count_all_dives FOR TESTING.
    METHODS deepest_of_diver FOR TESTING.
    METHODS diver_without_dives FOR TESTING.
    METHODS dive_without_site_counts FOR TESTING.
    METHODS diver_name_shown FOR TESTING.
ENDCLASS.

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

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

  METHOD setup.
    DATA lt_diver TYPE STANDARD TABLE OF {{p}}diver WITH EMPTY KEY.
    DATA lt_site TYPE STANDARD TABLE OF {{p}}site WITH EMPTY KEY.
    DATA lt_dive TYPE STANDARD TABLE OF {{p}}dive WITH EMPTY KEY.
    go_env->clear_doubles( ).
    lt_diver = VALUE #(
      ( diver_id = 'D1' diver_name = 'Alice' )
      ( diver_id = 'D2' diver_name = 'Bob' )
      ( diver_id = 'D3' diver_name = 'Carol' ) ).
    lt_site = VALUE #(
      ( site_id = 'S1' site_name = 'Reef'  depth_m = 10 )
      ( site_id = 'S2' site_name = 'Wreck' depth_m = 30 )
      ( site_id = 'S3' site_name = 'Cave'  depth_m = 20 ) ).
    lt_dive = VALUE #(
      ( dive_id = 'V1' diver_id = 'D1' site_id = 'S1' dive_date = '20250101' )
      ( dive_id = 'V2' diver_id = 'D1' site_id = 'S2' dive_date = '20250102' )
      ( dive_id = 'V3' diver_id = 'D1' site_id = 'S3' dive_date = '20250103' )
      ( dive_id = 'V4' diver_id = 'D2' site_id = 'S1' dive_date = '20250104' )
      ( dive_id = 'V5' diver_id = 'D2' site_id = 'S9' dive_date = '20250105' ) ).
    go_env->insert_test_data( lt_diver ).
    go_env->insert_test_data( lt_site ).
    go_env->insert_test_data( lt_dive ).
  ENDMETHOD.

  METHOD one_row_per_diver.
    SELECT COUNT(*) FROM {{p}}i_dive_stats INTO @DATA(lv_rows).
    cl_abap_unit_assert=>assert_equals( exp = 2 act = lv_rows ).
  ENDMETHOD.

  METHOD dive_count_all_dives.
    SELECT SINGLE dive_count FROM {{p}}i_dive_stats WHERE diver_id = 'D1' INTO @DATA(lv_count).
    cl_abap_unit_assert=>assert_equals( exp = 3 act = lv_count ).
  ENDMETHOD.

  METHOD deepest_of_diver.
    SELECT SINGLE deepest_m FROM {{p}}i_dive_stats WHERE diver_id = 'D1' INTO @DATA(lv_depth).
    cl_abap_unit_assert=>assert_equals( exp = 30 act = lv_depth ).
  ENDMETHOD.

  METHOD diver_without_dives.
    SELECT COUNT(*) FROM {{p}}i_dive_stats WHERE diver_id = 'D3' INTO @DATA(lv_rows).
    cl_abap_unit_assert=>assert_equals( exp = 0 act = lv_rows ).
  ENDMETHOD.

  METHOD dive_without_site_counts.
    SELECT SINGLE dive_count FROM {{p}}i_dive_stats WHERE diver_id = 'D2' INTO @DATA(lv_count).
    cl_abap_unit_assert=>assert_equals( exp = 2 act = lv_count ).
  ENDMETHOD.

  METHOD diver_name_shown.
    SELECT SINGLE diver_name FROM {{p}}i_dive_stats WHERE diver_id = 'D1' INTO @DATA(lv_name).
    cl_abap_unit_assert=>assert_equals( exp = 'Alice' act = lv_name ).
  ENDMETHOD.
ENDCLASS.