@ethersproject/tests/lib.esm/utils.js

Testing package for ethers.

/* istanbul ignore file */
'use strict';
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
import { ethers } from "ethers";
function randomBytes(seed, lower, upper) {
    if (!upper) {
        upper = lower;
    }
    if (upper === 0 && upper === lower) {
        return new Uint8Array(0);
    }
    let result = ethers.utils.arrayify(ethers.utils.keccak256(ethers.utils.toUtf8Bytes(seed)));
    while (result.length < upper) {
        result = ethers.utils.concat([result, ethers.utils.keccak256(ethers.utils.concat([seed, result]))]);
    }
    let top = ethers.utils.arrayify(ethers.utils.keccak256(result));
    let percent = ((top[0] << 16) | (top[1] << 8) | top[2]) / 0x01000000;
    return result.slice(0, lower + Math.floor((upper - lower) * percent));
}
function randomHexString(seed, lower, upper) {
    return ethers.utils.hexlify(randomBytes(seed, lower, upper));
}
function randomNumber(seed, lower, upper) {
    let top = randomBytes(seed, 3);
    let percent = ((top[0] << 16) | (top[1] << 8) | top[2]) / 0x01000000;
    return lower + Math.floor((upper - lower) * percent);
}
function equals(a, b) {
    // Array (treat recursively)
    if (Array.isArray(a)) {
        if (!Array.isArray(b) || a.length !== b.length) {
            return false;
        }
        for (let i = 0; i < a.length; i++) {
            if (!equals(a[i], b[i])) {
                return false;
            }
        }
        return true;
    }
    // BigNumber
    if (a.eq) {
        if (!b.eq || !a.eq(b)) {
            return false;
        }
        return true;
    }
    // Uint8Array
    if (a.buffer) {
        if (!b.buffer || a.length !== b.length) {
            return false;
        }
        for (let i = 0; i < a.length; i++) {
            if (a[i] !== b[i]) {
                return false;
            }
        }
        return true;
    }
    // Something else
    return a === b;
}
function getWallet() {
    const provider = new ethers.providers.InfuraProvider("sepolia", "49a0efa3aaee4fd99797bfa94d8ce2f1");
    let key = null;
    // browser
    if (key == null) {
        try {
            if (typeof window !== "undefined") {
                key = window.__karma__.config.args[0];
                if (typeof (key) !== "string") {
                    key = null;
                }
            }
        }
        catch (error) { }
    }
    // node.js
    if (key == null) {
        try {
            key = process.env.FAUCET_PRIVATEKEY;
            if (typeof (key) !== "string") {
                key = null;
            }
        }
        catch (error) { }
    }
    if (key == null) {
        throw new Error("could not find faucet private key");
    }
    return new ethers.Wallet(key, provider);
}
export function fundAddress(address) {
    return __awaiter(this, void 0, void 0, function* () {
        try {
            const faucetWallet = getWallet();
            const tx = yield faucetWallet.sendTransaction({
                to: address,
                value: "314159265358979323"
            });
            return tx.wait().then((resp) => resp.transactionHash);
        }
        catch (error) {
            console.log("ERROR getting faucet", error);
            throw error;
        }
    });
}
export function returnFunds(wallet) {
    return __awaiter(this, void 0, void 0, function* () {
        const faucet = getWallet();
        const provider = faucet.provider;
        // Refund all unused ether to the faucet
        const gasPrice = yield provider.getGasPrice();
        const balance = yield provider.getBalance(wallet.address);
        const tx = yield wallet.connect(provider).sendTransaction({
            to: faucet.address,
            gasLimit: 21000,
            gasPrice: gasPrice,
            value: balance.sub(gasPrice.mul(21000))
        });
        return tx.hash;
    });
}
export function sendTransaction(txObj) {
    return __awaiter(this, void 0, void 0, function* () {
        const wallet = getWallet();
        const tx = yield wallet.sendTransaction(txObj);
        return tx.hash;
    });
}
export { randomBytes, randomHexString, randomNumber, equals };
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