Add lotto bot

src/main/scala/com/github/funprog/funbot/DiceBot.scala

@@ -4,8 +4,10 @@ import scala.util.Random
 
 class DiceBot(val random: Random) {
   private lazy val regex = """(?i)\s*roll\s+(\d+)([d|n])(\d+)\s*""".r
+  private lazy val regexLotto = """(?i)\s*roll\s+(\d+)(lotto)\s*""".r
   private lazy val regexInteger = """(?i)(\d+)\s*""".r
 
+
   /** Processes an `input` to return sequential string values
     * representing order.
     *
@@ -23,6 +25,7 @@ class DiceBot(val random: Random) {
       val result = method.toLowerCase match {
         case "d" => rollNormalDice(dice, count)
         case "n" => rollNonDupDice(dice, count)
+        case "lotto" => rollForNewLife(count, List.empty)
       }
       Some(result.mkString(", "))
     } else {
@@ -31,6 +34,7 @@ class DiceBot(val random: Random) {
   }
 
   private def parseInput(input: String): (Boolean, Int, String, String) = input match {
+    case regexLotto(count, method) => (true, count.toInt, method, "")
     case regex(count, method, max) => (true, count.toInt, method, max)
     case _ => (false, 0, "", "")
   }
@@ -47,4 +51,14 @@ class DiceBot(val random: Random) {
   private def rollNonDupDice(dice: List[String], count: Int): List[String] = {
     random.shuffle(dice).take(count)
   }
+  private def rollForNewLife(count: Int, result: List[String]): List[String] = {
+    if (count == 0) {
+      result
+    } else {
+      val `newLife and bonus` = random.shuffle((1 to 45).toList.map(_.toString)).take(7)
+      val bonus = `newLife and bonus`.head
+      val newLifeNumber = `newLife and bonus`.tail.mkString(" ")
+      rollForNewLife(count - 1, result ::: List(s"\n[$newLifeNumber] and bonus(#$bonus)"))
+    }
+  }
 }

src/test/scala/com/github/funprog/funbot/DiceBotTest.scala

@@ -5,6 +5,7 @@ import org.scalatest.FunSuite
 import scala.util.Random
 
 class DiceBotTest extends FunSuite {
+
   Seq(
     "invalid string",
     "",
@@ -97,4 +98,34 @@ class DiceBotTest extends FunSuite {
     // Verify outcome
     assert(expected == actual)
   }
+
+  Seq("roll 1lotto",
+    "roll 3LOTTO",
+    "roll 4Lotto",
+    "roll 2loTTo").foreach(
+    input => {
+      test(s"process with '$input' test") {
+        val dicebotRandom = new DiceBot(new Random)
+
+        val actual = dicebotRandom.process(input)
+
+        assert(classOf[Some[String]] == actual.getClass)
+      }
+    })
+
+  Seq("roll lotto",
+    "roll 3lotto1",
+    "roll lotto12"
+  ).foreach(
+    input => {
+      test(s"process with '$input' test") {
+        val dicebotRandom = new DiceBot(new Random)
+
+        val actual = dicebotRandom.process(input)
+
+        assert(actual == None)
+      }
+    }
+  )
+
 }