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handle stakeable locktimes for building utxo bytes #309

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Merged
merged 2 commits into from
Nov 26, 2025
Merged

handle stakeable locktimes for building utxo bytes #309

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86defc9
handle stakeable locktimes for building utxo bytes
rajranjan0608 Nov 26, 2025
41ea817
stakeable locktime test
rajranjan0608 Nov 26, 2025
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26 changes: 26 additions & 0 deletions client/src/utils/buildUtxoBytes.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -157,6 +157,32 @@ describe("buildUtxoBytes", () => {
expect(parsedUtxo).toBeDefined();
});

test("handles stakeable locktime", () => {
const txHash = "2R5bJqAd6evMJAuV4TYGqfaHkdCEQfYUx4GoHpJZxsFeor6wMi";
const outputIndex = 0;
const assetId = "U8iRqJoiJm8xZHAacmvYyZVwqQx6uDNtQeP3CQ6fcgQk3JqnK";
const amount = "50000000000";
const addresses = [account1.getXPAddress("P", "fuji")];
const threshold = 1;
const locktime = "1672531200"; // Some future timestamp
const stakeableLocktime = "1672531200"; // Some future timestamp

const result = buildUtxoBytes(
txHash,
outputIndex,
assetId,
amount,
addresses,
locktime,
threshold,
stakeableLocktime
);

expect(result).toMatch(/^0x/);
const parsedUtxo = getUtxoFromBytes(result, "P");
expect(parsedUtxo).toBeDefined();
});

test("handles different thresholds", () => {
const txHash = "2R5bJqAd6evMJAuV4TYGqfaHkdCEQfYUx4GoHpJZxsFeor6wMi";
const outputIndex = 0;
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12 changes: 10 additions & 2 deletions client/src/utils/buildUtxoBytes.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import {
Id,
Int,
OutputOwners,
pvmSerial,
Short,
TransferOutput,
utils,
Expand All @@ -19,6 +20,7 @@ import {
* @param addresses - The addresses who can sign the transaction for consuming this output.
* @param locktime - The UNIX timestamp in seconds after which this output can be consumed.
* @param threshold - The threshold of the addresses who can sign the transaction for consuming this output.
* @param stakeableLocktime - The stakeable locktime in seconds before which this output can only be used as staking input.
* @returns The UTXO hex string.
*
* @example
Expand All @@ -42,7 +44,8 @@ export function buildUtxoBytes(
amount: string,
addresses: string[],
locktime: string,
threshold: number
threshold: number,
stakeableLocktime = '0',
): `0x${string}` {
const transferOutput = new TransferOutput(
new BigIntPr(BigInt(amount)),
Expand All @@ -60,10 +63,15 @@ export function buildUtxoBytes(
)
);

const stakeableLockOut = new pvmSerial.StakeableLockOut(
new BigIntPr(BigInt(stakeableLocktime ?? 0)),
transferOutput,
);

const utxo = new Utxo(
new avaxSerial.UTXOID(Id.fromString(txHash), new Int(outputIndex)),
Id.fromString(assetId),
transferOutput
stakeableLocktime !== '0' ? stakeableLockOut : transferOutput
);

return utils.bufferToHex(
Expand Down