Puzzle 2.

Author: pauldoo

src/com/pauldoo/euler/puzzle/Puzzle2.scala

@@ -0,0 +1,10 @@
+package com.pauldoo.euler.puzzle
+import scala.math.BigInt
+
+object Puzzle2 extends Puzzle {
+  val fibs: Stream[BigInt] = BigInt(0) #:: BigInt(1) #:: fibs.zip(fibs.tail).map { n => n._1 + n._2 };
+
+  def answer(): BigInt = {
+    fibs.takeWhile(_ <= 4000000).filter(_ % 2 == 0).reduce(_ + _);
+  }
+}

test/com/pauldoo/euler/puzzle/Puzzle1Test.scala

@@ -7,5 +7,4 @@ import org.scalatest.junit.JUnitRunner
 class Puzzle1Test extends PuzzleTest {
   def puzzle = Puzzle1;
   def expectedAnswer = 233168;
-
 }

test/com/pauldoo/euler/puzzle/Puzzle2Test.scala

@@ -0,0 +1,10 @@
+package com.pauldoo.euler.puzzle
+import org.scalatest.FunSuite
+import org.junit.runner.RunWith
+import org.scalatest.junit.JUnitRunner
+
+@RunWith(classOf[JUnitRunner])
+class Puzzle2Test extends PuzzleTest {
+  def puzzle = Puzzle2;
+  def expectedAnswer = 4613732;
+}