130 lines
4.2 KiB
JavaScript
130 lines
4.2 KiB
JavaScript
// Copyright BigchainDB GmbH and BigchainDB contributors
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// SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
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// Code is Apache-2.0 and docs are CC-BY-4.0
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import test from 'ava'
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import cc from 'crypto-conditions'
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import { Ed25519Keypair, Transaction, ccJsonLoad } from '../../src'
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import sha256Hash from '../../src/sha256Hash'
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test('Ed25519 condition encoding', t => {
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const publicKey = '4zvwRjXUKGfvwnParsHAS3HuSVzV5cA4McphgmoCtajS'
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const target = {
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details: {
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type: 'ed25519-sha-256',
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public_key: publicKey,
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},
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uri: 'ni:///sha-256;uLdVX7FEjLWVDkAkfMAkEqPPwFqZj7qfiGE152t_x5c?fpt=ed25519-sha-256&cost=131072'
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}
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t.deepEqual(target, Transaction.makeEd25519Condition(publicKey))
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})
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test('Sha256Condition fulfillment', t => {
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const preimage = 'secret'
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const target = {
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details: {
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type_id: 0,
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bitmask: 3,
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preimage,
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type: 'fulfillment'
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},
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uri: 'ni:///sha-256;K7gNU3sdo-OL0wNhqoVWhr3g6s1xYv72ol_pe_Unols?fpt=preimage-sha-256&cost=6'
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}
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t.deepEqual(target, Transaction.makeSha256Condition(preimage))
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})
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test('Threshold condition encoding', t => {
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const publicKey = '4zvwRjXUKGfvwnParsHAS3HuSVzV5cA4McphgmoCtajS'
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const ed25519 = Transaction.makeEd25519Condition(publicKey, false)
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const condition = Transaction.makeThresholdCondition(1, [ed25519, ed25519])
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const output = Transaction.makeOutput(condition)
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const target = {
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condition: {
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details: {
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type: 'threshold-sha-256',
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threshold: 1,
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subconditions: [
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{
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type: 'ed25519-sha-256',
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public_key: publicKey,
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},
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{
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type: 'ed25519-sha-256',
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public_key: publicKey,
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}
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]
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},
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uri: 'ni:///sha-256;xTeBhQj7ae5Tym7cp83fwtkesQnhdwNwDEMIYwnf2g0?fpt=threshold-sha-256&cost=133120&subtypes=ed25519-sha-256',
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},
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amount: '1',
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public_keys: [publicKey]
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}
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t.deepEqual(target, output)
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})
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test('Fulfillment correctly formed', t => {
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const alice = new Ed25519Keypair()
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const txCreate = Transaction.makeCreateTransaction(
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{},
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{},
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[Transaction.makeOutput(Transaction.makeEd25519Condition(alice.publicKey))],
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alice.publicKey
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)
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// Sign in order to get the tx id, needed for the unique fulfillment in the transfer transaction
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const signCreateTransaction = Transaction.signTransaction(txCreate, alice.privateKey)
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const txTransfer = Transaction.makeTransferTransaction(
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[{ tx: signCreateTransaction, output_index: 0 }],
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[Transaction.makeOutput(Transaction.makeEd25519Condition(alice.publicKey))],
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{}
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)
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const txSigned = Transaction.signTransaction(txTransfer, alice.privateKey)
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// Here reconstruct the fulfillment of the transfer transaction
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// The tx is serialized, and extended with tx_id and output index, and then hashed into bytes
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const msg = Transaction.serializeTransactionIntoCanonicalString(txTransfer)
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const msgUniqueFulfillment = txTransfer.inputs[0].fulfills ? msg
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.concat(txTransfer.inputs[0].fulfills.transaction_id)
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.concat(txTransfer.inputs[0].fulfills.output_index) : msg
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const msgHash = sha256Hash(msgUniqueFulfillment)
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t.truthy(cc.validateFulfillment(
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txSigned.inputs[0].fulfillment, txCreate.outputs[0].condition.uri,
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Buffer.from(msgHash, 'hex')
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))
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})
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test('CryptoConditions JSON load', t => {
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const cond = ccJsonLoad({
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type: 'threshold-sha-256',
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threshold: 1,
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subconditions: [{
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type: 'ed25519-sha-256',
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public_key: 'a'
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},
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{
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hash: 'a'
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}],
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})
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t.truthy(cond.subconditions.length === 2)
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})
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test('CryptoConditions JSON load', t => {
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const cond = ccJsonLoad({
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type: 'threshold-sha-256',
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threshold: 1,
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subconditions: [{
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type: 'ed25519-sha-256',
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public_key: 'a'
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},
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{
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hash: 'a'
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}],
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})
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t.truthy(cond.subconditions.length === 2)
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})
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