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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-11-23 21:03:48 +0800 |
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committer | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-12-03 19:09:28 +0800 |
commit | 0faa8b3231ddfc15723a4bdda0b6ed7aeb742bd4 (patch) | |
tree | 1d1f4ec74287ff12e305a18fee459772345c2ff1 /contracts/test-utils/src/order_factory.ts | |
parent | 450c72035f13b02cb3cbd24f68a9fcb743aceb26 (diff) | |
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Refactor contracts-core into contracts-multisig, contracts-core and contracts-test-utils
Diffstat (limited to 'contracts/test-utils/src/order_factory.ts')
-rw-r--r-- | contracts/test-utils/src/order_factory.ts | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/contracts/test-utils/src/order_factory.ts b/contracts/test-utils/src/order_factory.ts new file mode 100644 index 000000000..2449d1a8a --- /dev/null +++ b/contracts/test-utils/src/order_factory.ts @@ -0,0 +1,38 @@ +import { generatePseudoRandomSalt, orderHashUtils } from '@0x/order-utils'; +import { Order, SignatureType, SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; + +import { getLatestBlockTimestampAsync } from './block_timestamp'; +import { constants } from './constants'; +import { signingUtils } from './signing_utils'; + +export class OrderFactory { + private readonly _defaultOrderParams: Partial<Order>; + private readonly _privateKey: Buffer; + constructor(privateKey: Buffer, defaultOrderParams: Partial<Order>) { + this._defaultOrderParams = defaultOrderParams; + this._privateKey = privateKey; + } + public async newSignedOrderAsync( + customOrderParams: Partial<Order> = {}, + signatureType: SignatureType = SignatureType.EthSign, + ): Promise<SignedOrder> { + const tenMinutesInSeconds = 10 * 60; + const currentBlockTimestamp = await getLatestBlockTimestampAsync(); + const order = ({ + senderAddress: constants.NULL_ADDRESS, + expirationTimeSeconds: new BigNumber(currentBlockTimestamp).add(tenMinutesInSeconds), + salt: generatePseudoRandomSalt(), + takerAddress: constants.NULL_ADDRESS, + ...this._defaultOrderParams, + ...customOrderParams, + } as any) as Order; + const orderHashBuff = orderHashUtils.getOrderHashBuffer(order); + const signature = signingUtils.signMessage(orderHashBuff, this._privateKey, signatureType); + const signedOrder = { + ...order, + signature: `0x${signature.toString('hex')}`, + }; + return signedOrder; + } +} |