tests: silentpayments: deduplicate setup code #1972

pull ViniciusCestarii wants to merge 3 commits into bitcoin-core:master from ViniciusCestarii:deduplicate-sp-tests changing 1 files +40 −42

ViniciusCestarii commented at 6:13 PM on October 21, 2026: contributor
Deduplicates code in silent payments as suggested by @theStack at #1943#pullrequestreview-5578778611.
- Turns output_tweak into a reusable constant.
- Adds function labels_cache_set_neg_output_tweak for setting the cache for negated OUTPUT_TWEAK.
- Adds function prevouts_summary_create_bob for creating secp256k1_silentpayments_prevouts_summary with bob's first address key.
tests: silentpayments: deduplicate output tweak 9c6ece8bdd
tests: silentpayments: deduplicate label cache setup 67916d9bbc
tests: silentpayments: deduplicate prevouts summary setup 70f321c334

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