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package scala.collection.mutable
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import org.junit.{Test, Ignore}
@RunWith(classOf[JUnit4])
class BitSetTest {
// Test for SI-8910
@Test def capacityExpansionTest() {
val bitSet = BitSet.empty
val size = bitSet.toBitMask.length
bitSet ^= bitSet
assert(bitSet.toBitMask.length == size, "Capacity of bitset changed after ^=")
bitSet |= bitSet
assert(bitSet.toBitMask.length == size, "Capacity of bitset changed after |=")
bitSet &= bitSet
assert(bitSet.toBitMask.length == size, "Capacity of bitset changed after &=")
bitSet &~= bitSet
assert(bitSet.toBitMask.length == size, "Capacity of bitset changed after &~=")
}
@Test def test_SI8917() {
val bigBitSet = BitSet(1, 100, 10000)
val littleBitSet = BitSet(100)
bigBitSet &= littleBitSet
assert(!(bigBitSet contains 10000), "&= not applied to the full bitset")
littleBitSet &= bigBitSet
assert(littleBitSet.toBitMask.length < bigBitSet.toBitMask.length, "Needlessly extended the size of bitset on &=")
}
}
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