diff options
Diffstat (limited to 'packages/0x.js/test/utils')
4 files changed, 66 insertions, 2 deletions
diff --git a/packages/0x.js/test/utils/constants.ts b/packages/0x.js/test/utils/constants.ts index 212abf4d6..75fdf49c9 100644 --- a/packages/0x.js/test/utils/constants.ts +++ b/packages/0x.js/test/utils/constants.ts @@ -8,4 +8,5 @@ export const constants = { KOVAN_RPC_URL: 'https://kovan.infura.io', ROPSTEN_RPC_URL: 'https://ropsten.infura.io', ZRX_DECIMALS: 18, + GAS_ESTIMATE: 500000, }; diff --git a/packages/0x.js/test/utils/subproviders/empty_wallet_subprovider.ts b/packages/0x.js/test/utils/subproviders/empty_wallet_subprovider.ts new file mode 100644 index 000000000..e5e279873 --- /dev/null +++ b/packages/0x.js/test/utils/subproviders/empty_wallet_subprovider.ts @@ -0,0 +1,27 @@ +import {JSONRPCPayload} from '../../../src/types'; + +/* + * This class implements the web3-provider-engine subprovider interface and returns + * that the provider has no addresses when queried. + * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js + */ +export class EmptyWalletSubprovider { + // This method needs to be here to satisfy the interface but linter wants it to be static. + // tslint:disable-next-line:prefer-function-over-method + public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error|null, result: any) => void) { + switch (payload.method) { + case 'eth_accounts': + end(null, []); + return; + + default: + next(); + return; + } + } + // Required to implement this method despite not needing it for this subprovider + // tslint:disable-next-line:prefer-function-over-method + public setEngine(engine: any) { + // noop + } +} diff --git a/packages/0x.js/test/utils/subproviders/fake_gas_estimate_subprovider.ts b/packages/0x.js/test/utils/subproviders/fake_gas_estimate_subprovider.ts new file mode 100644 index 000000000..059163f2e --- /dev/null +++ b/packages/0x.js/test/utils/subproviders/fake_gas_estimate_subprovider.ts @@ -0,0 +1,34 @@ +import {JSONRPCPayload} from '../../../src/types'; + +/* + * This class implements the web3-provider-engine subprovider interface and returns + * the constant gas estimate when queried. + * HACK: We need this so that our tests don't use testrpc gas estimation which sometimes kills the node. + * Source: https://github.com/trufflesuite/ganache-cli/issues/417 + * Source: https://github.com/trufflesuite/ganache-cli/issues/437 + * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js + */ +export class FakeGasEstimateSubprovider { + private constantGasAmount: number; + constructor(constantGasAmount: number) { + this.constantGasAmount = constantGasAmount; + } + // This method needs to be here to satisfy the interface but linter wants it to be static. + // tslint:disable-next-line:prefer-function-over-method + public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error|null, result: any) => void) { + switch (payload.method) { + case 'eth_estimateGas': + end(null, this.constantGasAmount); + return; + + default: + next(); + return; + } + } + // Required to implement this method despite not needing it for this subprovider + // tslint:disable-next-line:prefer-function-over-method + public setEngine(engine: any) { + // noop + } +} diff --git a/packages/0x.js/test/utils/web3_factory.ts b/packages/0x.js/test/utils/web3_factory.ts index b4bf1acd3..da4828943 100644 --- a/packages/0x.js/test/utils/web3_factory.ts +++ b/packages/0x.js/test/utils/web3_factory.ts @@ -7,7 +7,8 @@ import * as Web3 from 'web3'; import ProviderEngine = require('web3-provider-engine'); import RpcSubprovider = require('web3-provider-engine/subproviders/rpc'); -import {EmptyWalletSubProvider} from '../../src/subproviders/empty_wallet_subprovider'; +import {EmptyWalletSubprovider} from './subproviders/empty_wallet_subprovider'; +import {FakeGasEstimateSubprovider} from './subproviders/fake_gas_estimate_subprovider'; import {constants} from './constants'; @@ -22,8 +23,9 @@ export const web3Factory = { const provider = new ProviderEngine(); const rpcUrl = `http://${constants.RPC_HOST}:${constants.RPC_PORT}`; if (!hasAddresses) { - provider.addProvider(new EmptyWalletSubProvider()); + provider.addProvider(new EmptyWalletSubprovider()); } + provider.addProvider(new FakeGasEstimateSubprovider(constants.GAS_ESTIMATE)); provider.addProvider(new RpcSubprovider({ rpcUrl, })); |