/*
 * The MIT License (MIT)
 *
 * Copyright 2017 Alexander Orlov <alexander.orlov@loxal.net>. All rights reserved.
 * Copyright (c) [2016] [ <ether.camp> ]
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

package org.ethereum.net.shh

import org.junit.Assert.assertTrue
import org.junit.Test
import org.slf4j.LoggerFactory

class BloomFilterTest {

    @Test
    fun test1() {
        val filter = BloomFilter.createNone()

        for (i in 0..99) {
            filter.addTopic(Topic("Topic" + i))
        }

        for (i in 0..99) {
            assertTrue("Topic #" + i, filter.hasTopic(Topic("Topic" + i)))
        }

        val falsePositiveCnt = (0..9999).sumBy { if (filter.hasTopic(Topic("Topic_" + it))) 1 else 0 }
        logger.info("falsePositiveCnt: " + falsePositiveCnt)
        assertTrue(falsePositiveCnt < 1000) // false positive probability ~8.7%
    }

    companion object {
        private val logger = LoggerFactory.getLogger("test")
    }
}
