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Diffstat (limited to 'packages/asset-buyer/src/utils/assert.ts')
-rw-r--r-- | packages/asset-buyer/src/utils/assert.ts | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/packages/asset-buyer/src/utils/assert.ts b/packages/asset-buyer/src/utils/assert.ts new file mode 100644 index 000000000..edc90608c --- /dev/null +++ b/packages/asset-buyer/src/utils/assert.ts @@ -0,0 +1,44 @@ +import { assert as sharedAssert } from '@0xproject/assert'; +import { schemas } from '@0xproject/json-schemas'; +import { SignedOrder } from '@0xproject/types'; +import * as _ from 'lodash'; + +import { BuyQuote, OrderFetcher, OrderFetcherRequest } from '../types'; + +export const assert = { + ...sharedAssert, + isValidBuyQuote(variableName: string, buyQuote: BuyQuote): void { + sharedAssert.isHexString(`${variableName}.assetData`, buyQuote.assetData); + sharedAssert.doesConformToSchema(`${variableName}.orders`, buyQuote.orders, schemas.signedOrdersSchema); + sharedAssert.doesConformToSchema(`${variableName}.feeOrders`, buyQuote.feeOrders, schemas.signedOrdersSchema); + sharedAssert.isBigNumber(`${variableName}.minRate`, buyQuote.minRate); + sharedAssert.isBigNumber(`${variableName}.maxRate`, buyQuote.maxRate); + sharedAssert.isBigNumber(`${variableName}.assetBuyAmount`, buyQuote.assetBuyAmount); + if (!_.isUndefined(buyQuote.feePercentage)) { + sharedAssert.isNumber(`${variableName}.feePercentage`, buyQuote.feePercentage); + } + }, + isValidOrderFetcher(variableName: string, orderFetcher: OrderFetcher): void { + sharedAssert.isFunction(`${variableName}.fetchOrdersAsync`, orderFetcher.fetchOrdersAsync); + }, + isValidOrderFetcherRequest(variableName: string, orderFetcherRequest: OrderFetcherRequest): void { + sharedAssert.isHexString(`${variableName}.makerAssetData`, orderFetcherRequest.makerAssetData); + sharedAssert.isHexString(`${variableName}.takerAssetData`, orderFetcherRequest.takerAssetData); + sharedAssert.isNumber(`${variableName}.networkId`, orderFetcherRequest.networkId); + }, + areValidProvidedOrders(variableName: string, orders: SignedOrder[]): void { + if (orders.length === 0) { + return; + } + const makerAssetData = orders[0].makerAssetData; + const takerAssetData = orders[0].takerAssetData; + const filteredOrders = _.filter( + orders, + order => order.makerAssetData === makerAssetData && order.takerAssetData === takerAssetData, + ); + sharedAssert.assert( + orders.length === filteredOrders.length, + `Expected all orders in ${variableName} to have the same makerAssetData and takerAssetData.`, + ); + }, +}; |