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/*
* This file is part of GNU Taler
* (C) 2020 Taler Systems S.A.
*
* GNU Taler 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, or (at your option) any later version.
*
* GNU Taler 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
* GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
package net.taler.common
import kotlin.random.Random
import org.junit.Assert.assertTrue
import org.junit.Assert.fail
private val charPool: List<Char> = ('a'..'z') + ('A'..'Z') + ('0'..'9')
fun getRandomString(minLength: Int = 1, maxLength: Int = Random.nextInt(0, 1337)) =
(minLength..maxLength)
.map { Random.nextInt(0, charPool.size) }
.map(charPool::get)
.joinToString("")
inline fun <reified T : Throwable> assertThrows(
msg: String? = null,
function: () -> Any
) {
try {
function.invoke()
fail(msg)
} catch (e: Exception) {
assertTrue(e is T)
}
}
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