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243 lines
8.4 KiB
ABAP
243 lines
8.4 KiB
ABAP
*&---------------------------------------------------------------------*
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*& Gilded Rose Requirements Specification
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*&---------------------------------------------------------------------*
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*&
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*& Hi and welcome to team Gilded Rose. As you know, we are a small inn with
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*& a prime location in a prominent city ran by a friendly innkeeper named
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*& Allison. We also buy and sell only the finest goods. Unfortunately, our
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*& goods are constantly degrading in quality as they approach their sell by
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*& date. We have a system in place that updates our inventory for us. It
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*& was developed by a no-nonsense type named Leeroy, who has moved on to
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*& new adventures. Your task is to add the new feature to our system so that
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*& we can begin selling a new category of items.
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*&
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*& First an introduction to our system:
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*&
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*& - All items have a Sell In value which denotes the number of
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*& days we have to sell the item
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*& - All items have a Quality value which denotes how valuable the item is
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*& - At the end of each day our system lowers both values for every item
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*&
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*& Seems pretty simple, right? Well this is where it gets interesting:
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*&
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*& - Once the sell by date has passed, Quality degrades twice as fast
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*& - The Quality of an item is never negative
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*& - "Aged Brie" actually increases in Quality the older it gets
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*& - The Quality of an item is never more than 50
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*& - "Sulfuras", being a legendary item, never has to be sold or
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*& decreases in Quality
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*& - "Backstage passes", like aged brie, increases in Quality as its
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*& Sell In value approaches; Quality increases by 2 when there
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*& are 10 days or less and by 3 when there are 5 days or less
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*& but Quality drops to 0 after the concert
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*&
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*& We have recently signed a supplier of conjured items. This requires an
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*& update to our system:
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*&
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*& - "Conjured" items degrade in Quality twice as fast as normal items
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*&
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*& Feel free to make any changes to the Update Quality method and add any new
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*& code as long as everything still works correctly. However, do not alter
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*& the Item class directly or Items table attribute as those belong to the
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*& goblin in the corner who will insta-rage and one-shot you as he doesn't
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*& believe in shared code ownership (you can make the Update Quality method
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*& and Items property static if you must, we'll cover for you).
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*&
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*& Just for clarification, an item can never have its Quality increase
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*& above 50, however "Sulfuras" is a legendary item and as such its Quality
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*& is 80 and it never alters.
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PROGRAM yy_pao_gilded_rose.
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*& Production Code - Class Library
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CLASS lcl_item DEFINITION DEFERRED.
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CLASS lcl_gilded_rose DEFINITION FINAL.
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PUBLIC SECTION.
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TYPES:
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tt_items TYPE STANDARD TABLE OF REF TO lcl_item WITH EMPTY KEY.
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METHODS:
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constructor
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IMPORTING it_items TYPE tt_items,
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update_quality.
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PRIVATE SECTION.
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DATA:
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mt_items TYPE tt_items.
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ENDCLASS.
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CLASS lcl_item DEFINITION FINAL.
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PUBLIC SECTION.
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METHODS:
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constructor
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IMPORTING iv_name TYPE string
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iv_sell_in TYPE i
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iv_quality TYPE i,
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description
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RETURNING VALUE(rv_string) TYPE string.
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DATA:
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mv_name TYPE string,
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mv_sell_in TYPE i,
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mv_quality TYPE i.
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ENDCLASS.
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CLASS lcl_gilded_rose IMPLEMENTATION.
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METHOD constructor.
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mt_items = it_items.
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ENDMETHOD.
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METHOD update_quality.
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LOOP AT mt_items INTO DATA(lo_item).
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IF lo_item->mv_name <> |Aged Brie| AND
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lo_item->mv_name <> |Backstage passes to a TAFKAL80ETC concert|.
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IF lo_item->mv_quality > 0.
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IF lo_item->mv_name <> |Sulfuras, Hand of Ragnaros|.
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lo_item->mv_quality = lo_item->mv_quality - 1.
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ENDIF.
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ENDIF.
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ELSE.
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IF lo_item->mv_quality < 50.
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lo_item->mv_quality = lo_item->mv_quality + 1.
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IF lo_item->mv_name = |Backstage passes to a TAFKAL80ETC concert|.
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IF lo_item->mv_sell_in < 11.
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IF lo_item->mv_quality < 50.
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lo_item->mv_quality = lo_item->mv_quality + 1.
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ENDIF.
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ENDIF.
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IF lo_item->mv_sell_in < 6.
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IF lo_item->mv_quality < 50.
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lo_item->mv_quality = lo_item->mv_quality + 1.
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ENDIF.
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ENDIF.
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ENDIF.
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ENDIF.
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ENDIF.
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IF lo_item->mv_name <> |Sulfuras, Hand of Ragnaros|.
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lo_item->mv_sell_in = lo_item->mv_sell_in - 1.
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ENDIF.
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IF lo_item->mv_sell_in < 0.
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IF lo_item->mv_name <> |Aged Brie|.
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IF lo_item->mv_name <> |Backstage passes to a TAFKAL80ETC concert|.
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IF lo_item->mv_quality > 0.
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IF lo_item->mv_name <> |Sulfuras, Hand of Ragnaros|.
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lo_item->mv_quality = lo_item->mv_quality - 1.
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ENDIF.
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ENDIF.
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ELSE.
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lo_item->mv_quality = lo_item->mv_quality - lo_item->mv_quality.
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ENDIF.
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ELSE.
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IF lo_item->mv_quality < 50.
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lo_item->mv_quality = lo_item->mv_quality + 1.
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ENDIF.
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ENDIF.
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ENDIF.
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ENDLOOP.
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ENDMETHOD.
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ENDCLASS.
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CLASS lcl_item IMPLEMENTATION.
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METHOD constructor.
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mv_name = iv_name.
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mv_sell_in = iv_sell_in.
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mv_quality = iv_quality.
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ENDMETHOD.
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METHOD description.
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rv_string = |{ mv_name }, { mv_sell_in }, { mv_quality }|.
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ENDMETHOD.
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ENDCLASS.
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*& Test Code - Executable Text Test Fixture
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CLASS lth_texttest_fixture DEFINITION FINAL.
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PUBLIC SECTION.
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CLASS-METHODS main.
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ENDCLASS.
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CLASS lth_texttest_fixture IMPLEMENTATION.
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METHOD main.
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DATA(lo_out) = cl_demo_output=>new( )->write_text( |OMGHAI!| ).
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DATA(lt_items) = VALUE lcl_gilded_rose=>tt_items(
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( NEW #( iv_name = |+5 Dexterity Vest|
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iv_sell_in = 10
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iv_quality = 20 ) )
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( NEW #( iv_name = |Aged Brie|
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iv_sell_in = 2
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iv_quality = 0 ) )
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( NEW #( iv_name = |Elixir of the Mongoose|
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iv_sell_in = 5
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iv_quality = 7 ) )
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( NEW #( iv_name = |Sulfuras, Hand of Ragnaros|
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iv_sell_in = 0
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iv_quality = 80 ) )
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( NEW #( iv_name = |Backstage passes to a TAFKAL80ETC concert|
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iv_sell_in = 15
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iv_quality = 20 ) )
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( NEW #( iv_name = |Backstage passes to a TAFKAL80ETC concert|
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iv_sell_in = 10
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iv_quality = 49 ) )
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( NEW #( iv_name = |Backstage passes to a TAFKAL80ETC concert|
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iv_sell_in = 5
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iv_quality = 49 ) )
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"This conjured item does not work properly yet
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( NEW #( iv_name = |Conjured Mana Cake|
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iv_sell_in = 3
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iv_quality = 6 ) ) ).
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DATA(lo_app) = NEW lcl_gilded_rose( it_items = lt_items ).
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DATA(lv_days) = 2.
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cl_demo_input=>request( EXPORTING text = |Number of Days?|
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CHANGING field = lv_days ).
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DO lv_days TIMES.
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lo_out->next_section( |-------- day { sy-index } --------| ).
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lo_out->write_text( |Name, Sell_In, Quality| ).
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LOOP AT lt_items INTO DATA(lo_item).
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lo_out->write_text( lo_item->description( ) ).
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ENDLOOP.
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lo_app->update_quality( ).
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ENDDO.
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lo_out->display( ).
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ENDMETHOD.
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ENDCLASS.
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*& Test Code - Currently Broken
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CLASS ltc_gilded_rose DEFINITION FINAL FOR TESTING RISK LEVEL HARMLESS.
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PRIVATE SECTION.
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METHODS:
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foo FOR TESTING.
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ENDCLASS.
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CLASS ltc_gilded_rose IMPLEMENTATION.
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METHOD foo.
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DATA(lt_items) = VALUE lcl_gilded_rose=>tt_items( ( NEW #( iv_name = |foo|
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iv_sell_in = 0
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iv_quality = 0 ) ) ).
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DATA(lo_app) = NEW lcl_gilded_rose( it_items = lt_items ).
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lo_app->update_quality( ).
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cl_abap_unit_assert=>assert_equals(
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act = CAST lcl_item( lt_items[ 1 ] )->mv_name
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exp = |fixme| ).
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ENDMETHOD.
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ENDCLASS.
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