Test a Houdini token payout to an address

[j0ntz]

Technical Design Document

stealth-send-swap.md

CHANGELOG

Does this branch warrant an entry to the CHANGELOG?

• Yes
• No

Dependencies

none

Description

Asana task

Test only. A HoudiniSwap swap-to-address order had fixture coverage for chain coins and none for a token payout.

The new case, "orders a token payout to a pasted address", records TRX to USDT on Tron against the live API. It checks that the token is resolved by contract address from the synthetic destination wallet, that the order pays the pasted address, and that the saved action names the token.

The plugin code is unchanged: token payouts already worked, and the app could not ask for one until it had Houdini's token list (the edge-info-server and edge-react-gui PRs of this task).

Testing: test/houdini.test.ts passes with the four new fixtures.

---

Note

Low Risk
Changes are limited to Houdini acceptance tests and HTTP fixtures; no production swap or wallet logic is modified.

Overview
Test-only: adds acceptance coverage for Houdini swap-to-address when the payout is a token (not just a chain coin).

makeFakeSyntheticDestination now accepts optional tokens on currencyConfig.allTokens, matching how core backs synthetic destination wallets with the chain token list. A new case orders a token payout to a pasted address runs TRX → USDT (Tron) through quote and create-exchange: it asserts the destination token is resolved by contract on the synthetic wallet, addressTo is the pasted Tron address, amounts match the recorded order, and the saved action is swapSend with toAsset.tokenId set to the USDT contract.

Four cached test/houdiniFixtures/ JSON files were added so the flow replays without live API calls. No Houdini plugin or app production code changes.

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[j0ntz]

This branch was self-reviewed before the PR opened (code-review at high effort, then curated).

Fixed before review (1)

• test/houdini.test.ts:466: toNativeAmount was asserted only as a non-zero string, which a wrong-unit conversion of 6-decimal USDT would pass. It is asserted equal to '325587589' (fixture outAmount 325.587589). Folded into "Test a Houdini token payout to an address".