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/* __ *\
** ________ ___ / / ___ __ ____ Scala.js Test Suite **
** / __/ __// _ | / / / _ | __ / // __/ (c) 2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ |/_// /_\ \ http://scala-js.org/ **
** /____/\___/_/ |_/____/_/ | |__/ /____/ **
** |/____/ **
\* */
package scala.scalajs.testsuite.jsinterop
import scala.scalajs.runtime.RuntimeLong
import org.scalajs.jasmine.JasmineExpectation
import org.scalajs.jasminetest.JasmineTest
import scala.util.Try
/**
* test the runtime Long implementation directly
* does not depend on magic compiler Long rewriting
*/
object RuntimeLongTest extends JasmineTest {
import RuntimeLong.fromDouble
/** overload expect for long to add toString */
def expect(l: RuntimeLong): JasmineExpectation = expect(l.toHexString)
describe("scala.scalajs.runtime.RuntimeLong") {
def fromInt(x: Int): RuntimeLong = new RuntimeLong(x)
val maxInt = fromInt(Int.MaxValue)
val minInt = fromInt(Int.MinValue)
val one = fromInt(1)
val billion = fromInt(1000000000)
val `4503599627370510L` = new RuntimeLong( 14, 0, 256)
val `613354684553L` = new RuntimeLong( 639113, 146235, 0)
val `9863155567412L` = new RuntimeLong(2247476, 2351559, 0)
val `3632147899696541255L` = new RuntimeLong(1568327, 2954580, 206463)
val `7632147899696541255L` = new RuntimeLong(2616903, 1593290, 433837)
it("should correctly implement negation") {
expect(-fromInt(5)).toEqual("fffffffffffffffb")
expect(-fromInt(0)).toEqual("0")
expect(-minInt ).toEqual("80000000")
}
it("should correctly implement comparison") {
expect(fromInt(7) < fromInt(15)).toBe(true)
expect(fromInt(15) < fromInt(15)).toBe(false)
expect(fromInt(15) <= fromInt(15)).toBe(true)
expect(fromInt(14) <= fromInt(15)).toBe(true)
expect(fromInt(15) > fromInt(15)).toBe(false)
expect(fromInt(14) > fromInt(15)).toBe(false)
expect(fromInt(16) > fromInt(15)).toBe(true)
expect(fromInt(15) >= fromInt(15)).toBe(true)
expect(fromInt(14) >= fromInt(15)).toBe(false)
expect(fromInt(16) >= fromInt(15)).toBe(true)
}
it("should correctly implement addition") {
expect(fromInt(7) + fromInt(15)).toEqual("16")
expect( maxInt + maxInt ).toEqual("fffffffe")
expect( maxInt + one ).toEqual("80000000")
}
it("should correctly implement subtraction") {
expect(fromInt(7) - fromInt(15)).toEqual("fffffffffffffff8")
expect( maxInt - maxInt ).toEqual("0")
}
it("should correctly implement multiplication") {
expect(fromInt(7) * fromInt(15)).toEqual("69")
expect(fromInt(-7) * fromInt(15)).toEqual("ffffffffffffff97")
expect( maxInt * maxInt ).toEqual("3fffffff00000001")
expect(`4503599627370510L` * fromInt(-4)).toEqual("ffbfffffffffffc8")
}
it("should correctly implement division") {
expect( fromInt(7) / fromInt(15)).toEqual("0")
expect( fromInt(24) / fromInt(5) ).toEqual("4")
expect( fromInt(24) / fromInt(-5)).toEqual("fffffffffffffffc")
expect( maxInt / fromInt(-5)).toEqual("ffffffffe6666667")
expect( maxInt / billion ).toEqual("2")
expect((maxInt+one) / billion ).toEqual("2")
}
it("should correctly implement modulus") {
expect( fromInt(7) % fromInt(15)).toEqual("7")
expect( fromInt(24) % fromInt(5) ).toEqual("4")
expect( fromInt(24) % fromInt(-5)).toEqual("4")
expect( maxInt % billion ).toEqual("8ca6bff")
expect((maxInt+one) % billion ).toEqual("8ca6c00")
expect( maxInt % fromInt(-5)).toEqual("2")
}
it("should correctly implement toString") {
expect(maxInt.toString).toEqual("2147483647")
expect(fromInt(-50).toString).toEqual("-50")
expect(fromInt(-1000000000).toString).toEqual("-1000000000")
expect((maxInt+one).toString).toEqual("2147483648")
expect(minInt.toString).toEqual("-2147483648")
}
it("should correctly implement fromDouble") {
expect(fromDouble( 4.5)).toEqual("4")
expect(fromDouble(-4.5)).toEqual("fffffffffffffffc")
}
it("should correctly implement toDouble") {
expect(fromInt(5).toDouble).toEqual(5.0)
expect((maxInt+one).toDouble).toEqual(2147483648.0)
}
it("should correctly implement numberOfLeadingZeros") {
expect(fromInt( 0).numberOfLeadingZeros).toEqual(64)
expect(fromInt( 1).numberOfLeadingZeros).toEqual(63)
expect(fromInt(-1).numberOfLeadingZeros).toEqual(0)
expect(fromInt( 2).numberOfLeadingZeros).toEqual(62)
}
it("should implement hashCode() according to spec in j.l.Long") {
expect(fromInt(0 ).hashCode()).toEqual(0)
expect(fromInt(55 ).hashCode()).toEqual(55)
expect(fromInt(-12 ).hashCode()).toEqual(11)
expect(fromInt(10006548).hashCode()).toEqual(10006548)
expect(fromInt(-1098748).hashCode()).toEqual(1098747)
expect(`613354684553L` .hashCode()).toEqual(-825638905)
expect(`9863155567412L` .hashCode()).toEqual(1910653900)
expect(`3632147899696541255L`.hashCode()).toEqual(1735398658)
expect(`7632147899696541255L`.hashCode()).toEqual(-1689438124)
}
}
}
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