// Test 1: GP-only actor, deduct CP**
// Actor: { pp: 0, gp: 100, ep: 0, sp: 0, cp: 0 }

const result = dnd5e.applications.CurrencyManager.getActorCurrencyUpdates(actor, 20, "cp", { makeChange: true });
// Result: remainder=0, gp=99, cp=80

// Test 2: PP-only actor, deduct SP
// Actor: { pp: 5, gp: 0, ep: 0, sp: 0, cp: 0 }

const result = dnd5e.applications.CurrencyManager.getActorCurrencyUpdates(actor, 30, "sp", { makeChange: true });
// Result: remainder=0, pp=4, sp=70

// Test 3: Without makeChange (unchanged behavior)
// Actor: { pp: 0, gp: 100, ep: 0, sp: 0, cp: 0 }

const result = dnd5e.applications.CurrencyManager.getActorCurrencyUpdates(actor, 20, "cp");
// Result: remainder=20, no coins changed