import {RPC} from './rpc'; export class BlockchainClean { private rpc: RPC; private snapshotId: number; constructor() { this.rpc = new RPC(); } // TODO: Check if running on TestRPC or on actual node, if actual node, re-deploy contracts instead public async setupAsync(): Promise { this.snapshotId = await this.rpc.takeSnapshotAsync(); } public async restoreAsync(): Promise { const didRevert = await this.rpc.revertSnapshotAsync(this.snapshotId); if (!didRevert) { throw new Error(`Snapshot with id #${this.snapshotId} failed to revert`); } } };