03ab36149e
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014aUaQeLnwbb1zTpN7kHeat
72 lines
2.6 KiB
Markdown
72 lines
2.6 KiB
Markdown
# 1. Goal
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Calculate the price of a hotel stay. A booking program calls the calculation
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before it shows the price to the guest. The program needs one reason code for
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each invalid input.
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# 2. Open questions
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None.
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# 3. Context
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- The interface {{P}}IF_HOTEL_RATE exists in package $TMP. It is active.
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- The interface has these types:
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- TY_CATEGORY: character, length 1.
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- TY_REASON: character, length 10.
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- TY_AMOUNT: packed number, length 10, 2 decimals.
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- TY_RESULT: structure with the components REASON (TY_REASON) and
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PRICE (TY_AMOUNT).
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- The interface has these constants:
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- C_REASON: OK, NIGHTS, GUESTS, CATEGORY.
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- C_CATEGORY: BASIC 'S', COMFORT 'C', SUITE 'U'.
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- The interface has one method:
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CALCULATE
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IMPORTING iv_category TYPE ty_category
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iv_nights TYPE i
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iv_guests TYPE i
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iv_breakfast TYPE abap_bool
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RETURNING VALUE(rs_result) TYPE ty_result.
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# 4. Contract
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- Create the class {{P}}HOTEL_RATE in package $TMP.
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- The class is public, final, and has a public constructor without parameters.
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- The class implements {{P}}IF_HOTEL_RATE.
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- Do not add other public methods.
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# 5. Business rules
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Check the input in this sequence. Return the reason of the first check that
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fails and the price 0.
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1. If IV_NIGHTS is less than 1, return NIGHTS.
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2. If IV_GUESTS is less than 1, return GUESTS.
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3. If IV_CATEGORY is not BASIC, COMFORT or SUITE, return CATEGORY.
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4. Else return OK and calculate the price.
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Calculate the price in this sequence:
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1. One room takes at most 2 guests. The number of rooms is the number of guests
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divided by 2, rounded up.
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2. The price of one room for one night is 90.00 for BASIC, 140.00 for COMFORT
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and 260.00 for SUITE.
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3. The room total is the number of rooms multiplied by the number of nights
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multiplied by the price of one room for one night.
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4. Long stay discount on the room total:
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- 28 nights or more: 20 %
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- 14 nights or more: 15 %
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- 7 nights or more: 10 %
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- less than 7 nights: no discount
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The discounted room total is the room total minus the discount.
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5. Breakfast costs 12.50 for one guest for one night. Add it if IV_BREAKFAST is
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true.
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6. City tax costs 3.00 for one guest for one night. Add it always.
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7. The price is the discounted room total plus breakfast plus city tax.
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All amounts are exact to two decimals.
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# 6. Constraints
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- Release target: 8.16.
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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 {{P}}IF_HOTEL_RATE.
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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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