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// a quickly assembled test of equality. Needs work.
object Test
{
import scala.runtime.ScalaRunTime.hash
def makeFromInt(x: Int) = List(
x.toByte, x.toShort, x.toInt, x.toLong, x.toFloat, x.toDouble, BigInt(x), BigDecimal(x)
) ::: (
if (x < 0) Nil else List(x.toChar)
)
def makeFromDouble(x: Double) = List(
x.toShort, x.toInt, x.toLong, x.toFloat, x.toDouble, BigInt(x.toInt), BigDecimal(x)
)
def main(args: Array[String]): Unit = {
var xs = makeFromInt(5)
for (x <- xs ; y <- xs) {
assert(x == y, x + " == " + y)
assert(hash(x) == hash(y), "hash(%s) == hash(%s)".format(x, y))
}
xs = makeFromInt(-5)
for (x <- xs ; y <- xs) {
assert(x == y, x + " == " + y)
assert(hash(x) == hash(y), "hash(%s) == hash(%s)".format(x, y))
}
xs = makeFromDouble(500.0)
for (x <- xs ; y <- xs) {
assert(x == y, x + " == " + y)
assert(hash(x) == hash(y), "hash(%s) == hash(%s)".format(x, y))
}
// negatives
val bigLong = new java.util.concurrent.atomic.AtomicLong(Long.MaxValue)
assert(-1 != bigLong && bigLong != -1) // bigLong.intValue() == -1
assert(BigDecimal(1.1) != 1L)
assert(1L != BigDecimal(1.1))
}
}
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