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* Flow JS Testing
*
* Copyright 2020-2021 Dapper Labs, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import {config, withPrefix} from "@onflow/fcl"
import {createServer} from "net"
export const isObject = arg => typeof arg === "object" && arg !== null
export const isString = obj => typeof obj === "string" || obj instanceof String
export const isAddress = address => /^0x[0-9a-f]{0,16}$/.test(address)
export function getAvailablePorts(count = 1) {
if (count === 0) return Promise.resolve([])
return new Promise((resolve, reject) => {
const server = createServer()
server.listen(0, () => {
const port = server.address().port
server.close(async err => {
Iif (err) reject(err)
resolve([...(await getAvailablePorts(count - 1)), port])
})
})
})
}
export const getServiceAddress = async () => {
return withPrefix(await config().get("SERVICE_ADDRESS"))
}
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