Harness: runner, generator, tasks T01 T13 T14 T15, CLAUDE.md

tasks/T13/spec.md

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+# 1. Goal
+Calculate a processing fee for a posted document. The posting program calls one
+event module for each document. The event module must have the same interface as
+the sample event module, because the posting program calls all event modules in
+the same way.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- Function group {{P}}FG_EVT exists in package $TMP.
+- Function module {{P}}EVT_SAMPLE exists in this group. It is the sample event
+  module. Its interface is the interface that all event modules must use.
+
+# 4. Contract
+- Create the function module {{P}}EVT_FEE in function group {{P}}FG_EVT.
+- Use exactly the interface of {{P}}EVT_SAMPLE: the same parameter names, kinds,
+  types, and exceptions.
+
+# 5. Business rules
+1. If the amount is less than 0, raise the exception INVALID_AMOUNT.
+2. Set the skip flag to false, except in rule 4.
+3. Document type IN: the fee is 2 % of the amount, rounded half up to 2
+   decimals. The minimum fee is 1.00. The maximum fee is 50.00.
+4. Document type CR: set the skip flag to true. Do not change the fee.
+5. Other document types: the fee is 0.
+
+# 6. Constraints
+- Release target: 7.58.
+- Out of scope: do not change {{P}}EVT_SAMPLE.
+
+# 7. Acceptance
+- The function module is active and has no syntax error.
+- The hidden tests pass.
+- Write ABAP Unit tests for the function module in a global test class.