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feat(v0/tempo): add funding requirements and policies #469

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932dcb6
feat(tempo): add funding requirements and policies
jxom Sep 23, 2026
8377cd0
refactor(tempo): remove redundant error constructors
jxom Sep 23, 2026
b391bbf
test(tempo): move behavior cases last
jxom Sep 23, 2026
50411d0
feat(tempo): use to for funding requirement sources
jxom Sep 23, 2026
18ddbff
refactor(tempo): rename dex funding source
jxom Sep 23, 2026
c4fb80b
style(tempo): sort funding source export
jxom Sep 23, 2026
d67d87a
feat: consolidate tempo funding source API
jxom Sep 23, 2026
0b6162e
refactor: split tempo dex funding source
jxom Sep 23, 2026
5e5799f
docs: format dex funding source examples
jxom Sep 23, 2026
4c9c1f5
refactor: name dex funding data encoder
jxom Sep 23, 2026
7ef3523
feat: expose native dex source on FundingSource
jxom Sep 23, 2026
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5 changes: 5 additions & 0 deletions .changeset/tempo-funding.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"ox": patch
---

Added Tempo funding transaction codecs, committed policy rules, native DEX funding payloads, and access key funding authorization.
61 changes: 61 additions & 0 deletions src/tempo/FundingPolicy.test.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,61 @@
import { describe, expect, test } from 'vitest'
import * as FundingPolicy from './FundingPolicy.js'

const token = '0x0101010101010101010101010101010101010101' as const
const target = '0x0202020202020202020202020202020202020202' as const
const requirement = {
token,
amount: 50n,
sources: [{ target, data: '0xab' as const }],
slippageBps: 100,
}

const rules = {
maxSlippageBps: 100,
sources: { [token]: requirement.sources },
}
describe('encode', () => {
test('ABI encodes, decodes and hashes canonical rules', () => {
expect(FundingPolicy.decode(FundingPolicy.encode(rules))).toEqual(rules)
expect(FundingPolicy.hash(rules)).toMatch(/^0x[0-9a-f]{64}$/)
expect(() =>
FundingPolicy.decode(`${FundingPolicy.encode(rules)}00`),
).toThrow()
})
})

describe('hash', () => {
test('canonical token order preserves significant source order', () => {
const second = '0x0303030303030303030303030303030303030303'
const first = {
...rules,
sources: { [second]: requirement.sources, [token]: requirement.sources },
}
const reordered = {
...rules,
sources: { [token]: requirement.sources, [second]: requirement.sources },
}
expect(FundingPolicy.encode(first)).toBe(FundingPolicy.encode(reordered))
const sources = [...requirement.sources, { target, data: '0xcd' as const }]
expect(
FundingPolicy.hash({ ...rules, sources: { [token]: sources } }),
).not.toBe(
FundingPolicy.hash({
...rules,
sources: { [token]: [...sources].reverse() },
}),
)
})
})

describe('toTuple', () => {
test('rejects invalid policy IDs and admins', () => {
for (const value of [
0n,
2n ** 64n,
{ admins: [], rules },
{ admins: [token, token], rules },
])
expect(() => FundingPolicy.toTuple(value)).toThrow()
})
})
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