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SergiiVlasiuk's solution

to Two Fer in the Scala Track

Published at Aug 11 2019 · 0 comments
Test suite

Two-fer or 2-fer is short for two for one. One for you and one for me.

Given a name, return a string with the message:

One for X, one for me.

Where X is the given name.

However, if the name is missing, return the string:

One for you, one for me.

Here are some examples:

Name String to return
Alice One for Alice, one for me.
Bob One for Bob, one for me.
One for you, one for me.
Zaphod One for Zaphod, one for me.

The Scala exercises assume an SBT project scheme. The exercise solution source should be placed within the exercise directory/src/main/scala. The exercise unit tests can be found within the exercise directory/src/test/scala.

To run the tests simply run the command sbt test in the exercise directory.

For more detailed info about the Scala track see the help page.



Submitting Incomplete Solutions

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import org.scalatest.{Matchers, FunSuite}

/** @version 1.2.0 */
class TwoferTest extends FunSuite with Matchers {

  test("no name given") {
    Twofer.twofer() should be ("One for you, one for me.")

  test("a name given") {
    Twofer.twofer("Alice") should be ("One for Alice, one for me.")

  test("another name given") {
    Twofer.twofer("Bob") should be ("One for Bob, one for me.")
object Twofer {
  def twofer(name: String): String = Option(name).map(_.trim).filter(_.length > 0) match {
    case None => "One for you, one for me."
    case Some(x) => s"One for $x, one for me."

  def twofer(): String = twofer(null)

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