32f03fcad4
- generator: budget floor (2x oracle activations, 3x calls), static checks for CDS $parameters and UNION annotation - harness/mutation.py: deterministic mutants of the reference; hidden tests must fail - G0022 revalidated with harness fixes: oracle 100, null 0 - results in docs/faz1-tasarim.md 11f Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
82 lines
3.4 KiB
Markdown
82 lines
3.4 KiB
Markdown
# 1. Goal
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Calculate the price of a finished car-sharing rental. A booking program calls
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one function module for each finished rental. The function module must have
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the same interface as the sample function module, because the booking program
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calls all pricing modules in the same way.
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# 2. Open questions
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None.
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# 3. Context
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- Function group {{P}}FG_RENT exists in package $TMP.
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- Function module {{P}}RENT_SAMPLE exists in this function group. It is the
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sample pricing module. Its interface is the interface that all pricing
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modules must use.
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- All rental data is in the input parameters. No database access is necessary.
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# 4. Contract
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Create the function module {{P}}RENT_PRICE in function group {{P}}FG_RENT.
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The interface is:
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IMPORTING
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iv_vehicle_class TYPE string
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iv_minutes TYPE i
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iv_km TYPE i
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iv_member TYPE abap_bool
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iv_weekend TYPE abap_bool
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EXPORTING
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ev_time_fee TYPE decfloat34
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ev_distance_fee TYPE decfloat34
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ev_surcharge TYPE decfloat34
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ev_discount TYPE decfloat34
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ev_total TYPE decfloat34
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EXCEPTIONS
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invalid_duration
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invalid_distance
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invalid_class
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This interface is the same as the interface of {{P}}RENT_SAMPLE.
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Put the calculation logic in a new class in package $TMP. The function module
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must only call this class. The function module must not contain the
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calculation itself. The class is your own design decision. The function module
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maps the result of the class to its exporting parameters and exceptions.
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# 5. Business rules
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1. Check the input in this sequence:
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a. If iv_minutes is less than 1, raise INVALID_DURATION.
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b. If iv_km is less than 0, raise INVALID_DISTANCE.
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c. If iv_vehicle_class is not 'S', not 'M' and not 'L', raise INVALID_CLASS.
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2. Charge the rental duration in started 15-minute blocks. A duration of 15
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minutes is one block. A duration of 16 minutes is two blocks.
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3. The price of one block depends on the vehicle class: 'S' costs 3.00, 'M'
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costs 5.00 and 'L' costs 8.00. The time fee is the number of blocks
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multiplied by the block price.
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4. The first 10 kilometres of a rental are free. Each further kilometre costs
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0.25. The distance fee is the number of kilometres above 10 multiplied by
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0.25.
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5. If iv_weekend is true, the weekend surcharge is 25 % of the time fee.
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Otherwise the weekend surcharge is 0.
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6. The gross amount is the time fee plus the distance fee plus the weekend
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surcharge.
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7. If iv_member is true, the member discount is 15 % of the gross amount.
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Otherwise the member discount is 0.
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8. The total price is the gross amount minus the member discount. If this
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value is less than 5.00, the total price is 5.00.
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9. Round the weekend surcharge, the member discount and the total price half
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up to 2 decimals.
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10. Return the time fee in ev_time_fee, the distance fee in ev_distance_fee,
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the weekend surcharge in ev_surcharge, the member discount in ev_discount
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and the total price in ev_total.
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# 6. Constraints
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- Release target: ABAP Platform 2025 (SAP_BASIS 816).
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- Coding standards: Clean ABAP. Keep every method below 40 statements.
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- Out of scope: do not change {{P}}RENT_SAMPLE.
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# 7. Acceptance
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- The function module {{P}}RENT_PRICE is active and has no syntax error.
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- The hidden tests pass.
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- Write ABAP Unit tests for the new class as local test classes.
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- Write ABAP Unit tests for the function module in a global test class.
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