SStream

Use case examples

  test("take") {
    Stream[Id].many(1, 2, 3).take(1).toList shouldEqual List(1)
  }

  test("first") {
    Stream[Id].single(0).first shouldEqual Some(0)
  }

  test("repeat") {
    Stream.repeat[Id, Int](0).take(3).length shouldEqual 3
  }

  test("collect") {
    Stream[Id].many(1, 2, 3).collect { case x if x >= 2 => x + 1 }.toList shouldEqual List(3, 4)
  }

  test("zipWithIndex") {
    Stream.repeat[Id, Int](0).zipWithIndex.take(3).toList shouldEqual List((0, 0), (0, 1), (0, 2))
  }

Setup

addSbtPlugin("com.evolution" % "sbt-artifactory-plugin" % "0.0.2")

libraryDependencies += "com.evolutiongaming" %% "sstream" % "0.2.1"