From 89bacb9c25a58454ff1878e67f7ea07ffc8c269f Mon Sep 17 00:00:00 2001
From: Dmitry Petrashko <dmitry.petrashko@gmail.com>
Date: Tue, 12 May 2015 18:30:53 +0200
Subject: Run tests as they were in scala.

---
 tests/pending/run/streams.scala | 66 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 tests/pending/run/streams.scala

(limited to 'tests/pending/run/streams.scala')

diff --git a/tests/pending/run/streams.scala b/tests/pending/run/streams.scala
new file mode 100644
index 000000000..350e103ea
--- /dev/null
+++ b/tests/pending/run/streams.scala
@@ -0,0 +1,66 @@
+object Test extends App {
+  val s0: Stream[Int] = Stream.empty
+  println(s0.take(1))
+  println(s0.takeWhile(_ > 0))
+  println(s0.lengthCompare(-5) > 0)
+  println(s0.lengthCompare(0) == 0)
+  println(s0.lengthCompare(5) < 0)
+  println
+
+  val s1 = Stream.cons(1, Stream.empty)
+  println(s1.toArray.deep)
+  println(s1.take(1))
+  println(s1.take(2))
+  println(s1.drop(1))
+  println(s1.drop(2))
+  println(s1.drop(-1))
+  println(s1.dropWhile(_ > 0))
+  println(s1.lengthCompare(-5) > 0)
+  println(s1.lengthCompare(0) > 0)
+  println(s1.lengthCompare(1) == 0)
+  println(s1.lengthCompare(5) < 0)
+  println
+
+  val s2 = s1.append(Stream.cons(2, Stream.empty))
+  println(s2.toArray.deep)
+  println(s2.drop(1))
+  println(s2.drop(2))
+  println(s2.drop(-1))
+  println(s2.dropWhile(_ > 0))
+  println(s2.lengthCompare(-5) > 0)
+  println(s2.lengthCompare(0) > 0)
+  println(s2.lengthCompare(1) > 0)
+  println(s2.lengthCompare(2) == 0)
+  println(s2.lengthCompare(5) < 0)
+  println
+
+  val s3 = Stream.range(1, 1000) //100000 (ticket #153: Stackoverflow)
+  println(s3.length)
+
+  // ticket #153
+  def powers(x: Int) = if ((x&(x-1)) == 0) Some(x) else None
+  println(s3.flatMap(powers).reverse.head)
+
+  // large enough to generate StackOverflows (on most systems)
+  // unless the following methods are tail call optimized.
+  val size = 100000
+
+  // test tail recursive methods
+  println(Stream.from(1).take(size).last)
+  println(Stream.from(1).drop(size))
+  println(Stream.from(1).filter(_ > size).take(5))
+  println(Stream.from(1).take(size).forall(_ >= 0))
+  println(Stream.from(1).exists(_ > size))
+  Stream.from(1).take(size).foreach( x => () )
+  println(Stream.from(1).take(size).foldLeft(0)(_ + _))
+  val arr = new Array[Int](size)
+  Stream.from(1).take(size).copyToArray(arr, 0)
+
+  println
+
+  // ticket #6415
+  lazy val x = { println("evaluated"); 1 }
+  val s4 = 0 #:: x #:: Stream.empty
+
+  println(s4.isDefinedAt(0))
+}
-- 
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