New chatbot using partial functions

Author: obarcelonap

src/main/scala/advancedfp/Chatbot.scala

@@ -0,0 +1,13 @@
+package advancedfp
+
+object Chatbot extends App {
+  val reply: PartialFunction[String, String] = {
+    case "Hi" => "Hello"
+    case "Bye" => "Ciao"
+    case _ => "I don't understand you"
+  }
+
+  scala.io.Source.stdin.getLines()
+    .map(reply)
+    .foreach(println)
+}

src/test/scala/advancedfp/ChatbotSpec.scala

@@ -0,0 +1,25 @@
+package advancedfp
+
+import org.scalatest.funspec.AnyFunSpec
+import org.scalatest.matchers.should.Matchers
+
+class ChatbotSpec extends AnyFunSpec with Matchers {
+
+  describe("speak") {
+    it ("should reply 'Hi' when input is 'Hello'") {
+      val reply = Chatbot.reply("Hi")
+
+      reply should be ("Hello")
+    }
+    it ("should reply 'Ciao' when input is 'Bye'") {
+      val reply = Chatbot.reply("Bye")
+
+      reply should be ("Ciao")
+    }
+    it ("should reply 'I don't understand you' when input is anything else") {
+      val reply = Chatbot.reply("hahahaha")
+
+      reply should be ("I don't understand you")
+    }
+  }
+}