64 lines
2.6 KiB
Markdown
64 lines
2.6 KiB
Markdown
# 1. Goal
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A quarry sells gravel to building companies. A sales program calls the price
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calculation for each order. Calculate the net amount of one gravel order.
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# 2. Open questions
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None.
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# 3. Context
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- The table {{P}}GRV_ORD exists in package $TMP. It contains the gravel orders.
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The columns are:
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- ORDER_ID (CHAR 10): the order number.
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- GRADE (CHAR 1): the gravel grade.
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- TONNES (INT4): the order quantity in whole tonnes.
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- CUSTOMER (CHAR 30): the name of the customer.
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- The seed class {{P}}SEED_GRV fills the table with test data.
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# 4. Contract
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- Create the class {{P}}GRAVEL_PRICER in package $TMP.
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- The class is public, final, and has a public constructor without parameters.
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- Define these public types:
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- TY_ORDER_ID TYPE c LENGTH 10.
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- TY_GRADE TYPE c LENGTH 1.
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- TY_TONNES TYPE i.
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- TY_AMOUNT TYPE p LENGTH 8 DECIMALS 2.
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- TY_REASON TYPE c LENGTH 10.
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- TY_RESULT: a structure with the components NET_AMOUNT (TYPE ty_amount) and
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REASON (TYPE ty_reason).
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- Define the public constant structure C_REASON with these components of type
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TY_REASON: OK, NOT_FOUND, GRADE, QUANTITY.
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- Define one public method:
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PRICE_ORDER
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IMPORTING iv_order_id TYPE ty_order_id
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RETURNING VALUE(rs_result) TYPE ty_result.
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- Do not add other public methods.
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# 5. Business rules
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Apply the rules in this sequence. Return the reason of the first rule that fails.
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1. Read the order with the number iv_order_id from the table {{P}}GRV_ORD. If
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the table has no order with this number, return NOT_FOUND.
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2. The grade must be F (fine), M (medium) or C (coarse). If the grade is not
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one of these three letters, return GRADE.
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3. The quantity must be greater than zero. If the quantity is zero or negative,
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return QUANTITY.
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4. The base price of one tonne is 42.00 EUR for grade F, 36.00 EUR for grade M
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and 30.00 EUR for grade C.
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5. The discount depends on the order quantity:
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- An order of up to 4 tonnes gets no discount.
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- An order of 6 to 19 tonnes gets a discount of 5 percent.
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- An order of 20 tonnes or more gets a discount of 10 percent.
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6. The net amount is the base price multiplied by the quantity, less the
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discount. Round the net amount to 2 decimals. Return OK.
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# 6. Constraints
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- Release target: SAP_BASIS 816.
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- Coding standards: Clean ABAP. Method length below 40 statements. No global
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variables. No comment that restates the code.
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- Out of scope: do not change the table {{P}}GRV_ORD and the seed class
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{{P}}SEED_GRV.
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# 7. Acceptance
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- The class is active and has no syntax error.
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- The hidden tests pass.
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- Write your own ABAP Unit tests for the class.
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