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Diffstat (limited to 'examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/javalib/RandomTest.scala')
| -rw-r--r-- | examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/javalib/RandomTest.scala | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/javalib/RandomTest.scala b/examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/javalib/RandomTest.scala deleted file mode 100644 index 1794d4a..0000000 --- a/examples/scala-js/test-suite/src/test/scala/scala/scalajs/testsuite/javalib/RandomTest.scala +++ /dev/null @@ -1,225 +0,0 @@ -/* __ *\ -** ________ ___ / / ___ __ ____ Scala.js Test Suite ** -** / __/ __// _ | / / / _ | __ / // __/ (c) 2013, LAMP/EPFL ** -** __\ \/ /__/ __ |/ /__/ __ |/_// /_\ \ http://scala-js.org/ ** -** /____/\___/_/ |_/____/_/ | |__/ /____/ ** -** |/____/ ** -\* */ -package scala.scalajs.testsuite.javalib - -import org.scalajs.jasminetest.JasmineTest - -import java.util.Random - -import scala.scalajs.js -import scala.scalajs.js.JSConverters._ - -object RandomTest extends JasmineTest { - - describe("java.util.Random") { - - it("should produce bits according to spec with seed=10") { - val random = new HackRandom(10) - - expect(random.next(10)).toBe(747) - expect(random.next(1)).toBe(0) - expect(random.next(6)).toBe(16) - expect(random.next(20)).toBe(432970) - expect(random.next(32)).toBe(254270492) - } - - it("should produce bits according to spec with seed=-5") { - val random = new HackRandom(-5) - - expect(random.next(10)).toBe(275) - expect(random.next(1)).toBe(0) - expect(random.next(6)).toBe(21) - expect(random.next(20)).toBe(360349) - expect(random.next(32)).toBe(1635930704) - } - - it("should produce bits according to spec with seed=MaxLong") { - val random = new HackRandom(Long.MaxValue) - - expect(random.next(10)).toBe(275) - expect(random.next(1)).toBe(0) - expect(random.next(6)).toBe(0) - expect(random.next(20)).toBe(574655) - expect(random.next(32)).toBe(-1451336087) - } - - it("should produce bits according to spec with seed=MinInt") { - val random = new HackRandom(Int.MinValue) - - expect(random.next(10)).toBe(388) - expect(random.next(1)).toBe(0) - expect(random.next(6)).toBe(25) - expect(random.next(20)).toBe(352095) - expect(random.next(32)).toBe(-2140124682) - } - - it("should allow resetting the seed") { - val random = new HackRandom(11) - expect(random.next(10)).toBe(747) - expect(random.next(1)).toBe(1) - expect(random.next(6)).toBe(27) - - random.setSeed(11) - expect(random.next(10)).toBe(747) - expect(random.next(1)).toBe(1) - expect(random.next(6)).toBe(27) - } - - it("should reset nextNextGaussian when setting the seed") { - val random = new Random(-1) - expect(random.nextGaussian()).toBe(1.7853314409882288) - random.setSeed(-1) - expect(random.nextGaussian()).toBe(1.7853314409882288) - } - - it("should correctly implement nextDouble") { - val random = new Random(-45) - expect(random.nextDouble()).toBe(0.27288421395636253) - expect(random.nextDouble()).toBe(0.5523165360074201) - expect(random.nextDouble()).toBe(0.5689979434708298) - expect(random.nextDouble()).toBe(0.9961166166874871) - expect(random.nextDouble()).toBe(0.5368984665202684) - expect(random.nextDouble()).toBe(0.19849067496547423) - expect(random.nextDouble()).toBe(0.6021019223595357) - expect(random.nextDouble()).toBe(0.06132131151816378) - expect(random.nextDouble()).toBe(0.7303867762743866) - expect(random.nextDouble()).toBe(0.7426529384056163) - } - - it("should correctly implement nextBoolean") { - val random = new Random(4782934) - expect(random.nextBoolean()).toBe(false) - expect(random.nextBoolean()).toBe(true) - expect(random.nextBoolean()).toBe(true) - expect(random.nextBoolean()).toBe(false) - expect(random.nextBoolean()).toBe(false) - expect(random.nextBoolean()).toBe(false) - expect(random.nextBoolean()).toBe(true) - expect(random.nextBoolean()).toBe(false) - } - - it("should correctly implement nextInt") { - val random = new Random(-84638) - expect(random.nextInt()).toBe(-1217585344) - expect(random.nextInt()).toBe(1665699216) - expect(random.nextInt()).toBe(382013296) - expect(random.nextInt()).toBe(1604432482) - expect(random.nextInt()).toBe(-1689010196) - expect(random.nextInt()).toBe(1743354032) - expect(random.nextInt()).toBe(454046816) - expect(random.nextInt()).toBe(922172344) - expect(random.nextInt()).toBe(-1890515287) - expect(random.nextInt()).toBe(1397525728) - } - - it("should correctly implement nextInt(n)") { - val random = new Random(7) - expect(random.nextInt(76543)).toBe(32736) - expect(() => random.nextInt(0)).toThrow - expect(random.nextInt(45)).toBe(29) - expect(random.nextInt(945)).toBe(60) - expect(random.nextInt(35694839)).toBe(20678044) - expect(random.nextInt(35699)).toBe(23932) - expect(random.nextInt(3699)).toBe(2278) - expect(random.nextInt(10)).toBe(8) - } - - it("should correctly implement nextInt(n) for powers of 2") { - val random = new Random(-56938) - - expect(random.nextInt(32)).toBe(8) - expect(random.nextInt(8)).toBe(3) - expect(random.nextInt(128)).toBe(3) - expect(random.nextInt(4096)).toBe(1950) - expect(random.nextInt(8192)).toBe(3706) - expect(random.nextInt(8192)).toBe(4308) - expect(random.nextInt(8192)).toBe(3235) - expect(random.nextInt(8192)).toBe(7077) - expect(random.nextInt(8192)).toBe(2392) - expect(random.nextInt(32)).toBe(31) - } - - it("should correctly implement nextLong") { - val random = new Random(205620432625028L) - expect(random.nextLong()).toBe(3710537363280377478L) - expect(random.nextLong()).toBe(4121778334981170700L) - expect(random.nextLong()).toBe(289540773990891960L) - expect(random.nextLong()).toBe(307008980197674441L) - expect(random.nextLong()).toBe(7527069864796025013L) - expect(random.nextLong()).toBe(-4563192874520002144L) - expect(random.nextLong()).toBe(7619507045427546529L) - expect(random.nextLong()).toBe(-7888117030898487184L) - expect(random.nextLong()).toBe(-3499168703537933266L) - expect(random.nextLong()).toBe(-1998975913933474L) - } - - it("should correctly implement nextFloat") { - val random = new Random(-3920005825473L) - expect(random.nextFloat()).toBeCloseTo(0.059591234, 7) - expect(random.nextFloat()).toBeCloseTo(0.7007871, 7) - expect(random.nextFloat()).toBeCloseTo(0.39173192, 7) - expect(random.nextFloat()).toBeCloseTo(0.0647918, 7) - expect(random.nextFloat()).toBeCloseTo(0.9029677, 7) - expect(random.nextFloat()).toBeCloseTo(0.18226051, 7) - expect(random.nextFloat()).toBeCloseTo(0.94444054, 7) - expect(random.nextFloat()).toBeCloseTo(0.008844078, 7) - expect(random.nextFloat()).toBeCloseTo(0.08891684, 7) - expect(random.nextFloat()).toBeCloseTo(0.06482434, 7) - } - - it("should correctly implement nextBytes") { - val random = new Random(7399572013373333L) - - def test(exps: Int*) = { - val exp = js.Array(exps.map(_.toByte): _*) - val buf = new Array[Byte](exp.length) - random.nextBytes(buf) - expect(buf.toJSArray).toEqual(exp) - } - - test(62, 89, 68, -91, 10, 0, 85) - test(-89, -76, 88, 121, -25, 47, 58, -8, 78, 20, -77, 84, -3, - -33, 58, -9, 11, 57, -118, 40, -74, -86, 78, 123, 58) - test(-77, 112, -116) - test() - test(-84, -96, 108) - test(57, -106, 42, -100, -47, -84, 67, -48, 45) - } - - it("should correctly implement nextGaussian") { - val random = new Random(2446004) - expect(random.nextGaussian()).toBe(-0.5043346938630431) - expect(random.nextGaussian()).toBe(-0.3250983270156675) - expect(random.nextGaussian()).toBe(-0.23799457294994966) - expect(random.nextGaussian()).toBe(0.4164610631507695) - expect(random.nextGaussian()).toBe(0.22086348814760687) - expect(random.nextGaussian()).toBe(-0.706833209972521) - expect(random.nextGaussian()).toBe(0.6730758289772553) - expect(random.nextGaussian()).toBe(0.2797393696191283) - expect(random.nextGaussian()).toBe(-0.2979099632667685) - expect(random.nextGaussian()).toBe(0.37443415981434314) - expect(random.nextGaussian()).toBe(0.9584801742918951) - expect(random.nextGaussian()).toBe(1.1762179112229345) - expect(random.nextGaussian()).toBe(0.8736960092848826) - expect(random.nextGaussian()).toBe(0.12301554931271008) - expect(random.nextGaussian()).toBe(-0.6052081187207353) - expect(random.nextGaussian()).toBe(-0.2015925608755316) - expect(random.nextGaussian()).toBe(-1.0071216119742104) - expect(random.nextGaussian()).toBe(0.6734222041441913) - expect(random.nextGaussian()).toBe(0.3990565555091522) - expect(random.nextGaussian()).toBe(2.0051627385915154) - } - - } - - /** Helper class to access next */ - class HackRandom(seed: Long) extends Random(seed) { - override def next(bits: Int): Int = super.next(bits) - } - -} |