CLASS {{p}}t41_test 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 rating_and_average FOR TESTING.
ENDCLASS.


CLASS {{p}}t41_test IMPLEMENTATION.
  METHOD class_setup.
    go_env = cl_cds_test_environment=>create( i_for_entity = '{{P}}I_AIR_QUALITY' ).
  ENDMETHOD.

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

  METHOD setup.
    go_env->clear_doubles( ).
  ENDMETHOD.

  METHOD rating_and_average.
    DATA lt_sta TYPE STANDARD TABLE OF {{p}}station WITH EMPTY KEY.
    DATA lt_rea TYPE STANDARD TABLE OF {{p}}reading WITH EMPTY KEY.
    lt_sta = VALUE #( ( station_id = 'A' station_name = 'ALPHA' limit_pm = '50.0' ) ).
    lt_rea = VALUE #( ( station_id = 'A' reading_no = 1 pm_value = '10.0' )
                      ( station_id = 'A' reading_no = 2 pm_value = '20.0' ) ).
    go_env->insert_test_data( lt_sta ).
    go_env->insert_test_data( lt_rea ).
    SELECT SINGLE rating, avg_pm, deviation FROM {{p}}i_air_quality
      WHERE station_id = 'A' INTO @DATA(ls_row).
    cl_abap_unit_assert=>assert_equals( exp = 'LOW' act = ls_row-rating ).
    cl_abap_unit_assert=>assert_equals( exp = CONV decfloat34( '15.0' )
                                        act = CONV decfloat34( ls_row-avg_pm ) ).
    cl_abap_unit_assert=>assert_equals( exp = CONV decfloat34( '30.0' )
                                        act = CONV decfloat34( ls_row-deviation ) ).
  ENDMETHOD.
ENDCLASS.