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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.spark.util.collection
import org.scalatest.FunSuite
class BitSetSuite extends FunSuite {
test("basic set and get") {
val setBits = Seq(0, 9, 1, 10, 90, 96)
val bitset = new BitSet(100)
for (i <- 0 until 100) {
assert(!bitset.get(i))
}
setBits.foreach(i => bitset.set(i))
for (i <- 0 until 100) {
if (setBits.contains(i)) {
assert(bitset.get(i))
} else {
assert(!bitset.get(i))
}
}
assert(bitset.cardinality() === setBits.size)
}
test("100% full bit set") {
val bitset = new BitSet(10000)
for (i <- 0 until 10000) {
assert(!bitset.get(i))
bitset.set(i)
}
for (i <- 0 until 10000) {
assert(bitset.get(i))
}
assert(bitset.cardinality() === 10000)
}
test("nextSetBit") {
val setBits = Seq(0, 9, 1, 10, 90, 96)
val bitset = new BitSet(100)
setBits.foreach(i => bitset.set(i))
assert(bitset.nextSetBit(0) === 0)
assert(bitset.nextSetBit(1) === 1)
assert(bitset.nextSetBit(2) === 9)
assert(bitset.nextSetBit(9) === 9)
assert(bitset.nextSetBit(10) === 10)
assert(bitset.nextSetBit(11) === 90)
assert(bitset.nextSetBit(80) === 90)
assert(bitset.nextSetBit(91) === 96)
assert(bitset.nextSetBit(96) === 96)
assert(bitset.nextSetBit(97) === -1)
}
}
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