64 lines
2.7 KiB
Markdown
64 lines
2.7 KiB
Markdown
# 1. Goal
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A rope access company checks a work permit before a technician starts a job on a
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building. The permit desk calls one check for each job. The check returns one
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reason code for each job.
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# 2. Open questions
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None.
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# 3. Context
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- All objects are in package $TMP.
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- The interface {{P}}IF_ROPE_CHECK does not exist yet. You create it.
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- The interface contains the type TY_REASON (character, length 10), the type
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TY_TICKET (character, length 10), the constant structure C_REASON with the
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components OK, EMPTY, TICKET, AGE, HOURS and HEIGHT, the constant structure
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C_TICKET with the components LEVEL_1, LEVEL_2 and LEVEL_3, and one method:
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CHECK IMPORTING iv_ticket TYPE ty_ticket iv_height_m TYPE i
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iv_logged_hours TYPE i iv_age TYPE i
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RETURNING VALUE(rv_reason) TYPE ty_reason.
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# 4. Contract
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- Create the interface {{P}}IF_ROPE_CHECK in package $TMP with the types, the
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constants and the method of section 3.
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- Create the class {{P}}ROPE_CHECKER in package $TMP.
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- The class is public and final. It has a public constructor without parameters.
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- The class implements {{P}}IF_ROPE_CHECK.
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- Do not add other public methods to the class.
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- The values of the constants:
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C_REASON-OK = 'OK'. C_REASON-EMPTY = 'EMPTY'. C_REASON-TICKET = 'TICKET'.
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C_REASON-AGE = 'AGE'. C_REASON-HOURS = 'HOURS'.
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C_REASON-HEIGHT = 'HEIGHT'.
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C_TICKET-LEVEL_1 = 'LEVEL_1'. C_TICKET-LEVEL_2 = 'LEVEL_2'.
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C_TICKET-LEVEL_3 = 'LEVEL_3'.
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# 5. Business rules
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Apply the rules in this sequence. Return the reason code of the first rule that
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fails.
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1. Remove all spaces from iv_ticket. Convert all letters to upper case. The
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result is the ticket.
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2. If the ticket is empty, return EMPTY.
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3. The ticket must be the value of one component of C_TICKET. If not, return
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TICKET.
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4. The tickets have these limits:
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LEVEL_1: minimum age 18, minimum logged hours 0, maximum height 30.
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LEVEL_2: minimum age 18, minimum logged hours 500, maximum height 60.
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LEVEL_3: minimum age 21, minimum logged hours 1000, maximum height 120.
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If iv_age is less than the minimum age of the ticket, return AGE.
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5. If iv_logged_hours is less than the minimum logged hours of the ticket,
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return HOURS.
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6. If iv_height_m is greater than the maximum height of the ticket, return
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HEIGHT.
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7. Else return OK.
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# 6. Constraints
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- Release target: SAP_BASIS 816 (ABAP Platform 2025).
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- Coding standards: Clean ABAP. A method has less than 40 statements. No global
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variables. No comment that restates the code. Pass large parameters by
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reference.
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- Out of scope: do not change objects that are not in the contract.
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# 7. Acceptance
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- The interface and the class are active and have 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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