openethereum/js-old/test/types.js

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2017-09-05 11:21:18 +02:00
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import BigNumber from 'bignumber.js';
import { isInstanceOf } from '../src/api/util/types';
export { isFunction, isInstanceOf } from '../src/api/util/types';
export { isAddress } from '../src/abi/util/address';
const ZEROS = '000000000000000000000000000000000000000000000000000000000000';
export function isBigNumber (test) {
return isInstanceOf(test, BigNumber);
}
export function isBoolean (test) {
return Object.prototype.toString.call(test) === '[object Boolean]';
}
export function isHexNumber (_test) {
if (_test.substr(0, 2) !== '0x') {
return false;
}
const test = _test.substr(2);
const hex = `${ZEROS}${(new BigNumber(_test, 16)).toString(16)}`.slice(-1 * test.length);
return hex === test;
}