Merge pull request #264 from abo64/issue-242-acronym-as-object

acronym: Change class to object (issue #242)

Author: ricemery

exercises/acronym/example.scala

@@ -1,5 +1,5 @@
-case class Acronym(phrase: String) {
-  def abbreviate: String = {
+object Acronym {
+  def abbreviate(phrase: String): String = {
     "[A-Z]+[a-z]*|[a-z]+".r.findAllIn(phrase).map(s => s.head.toUpper).mkString
   }
 }

exercises/acronym/src/main/scala/Acronym.scala

@@ -1,3 +1,3 @@
-case class Acronym(phrase: String) {
-  def abbreviate: String = ???
+object Acronym {
+  def abbreviate(phrase: String): String = ???
 }

exercises/acronym/src/test/scala/AcronymTest.scala

@@ -10,6 +10,6 @@ class AcronymTest extends FlatSpec with Matchers {
     ("Complementary metal-oxide semiconductor", "CMOS"))
 
   it should "create acronyms" in {
-    acronyms.foreach{case (phrase, acronym) => Acronym(phrase).abbreviate should equal(acronym)}
+    acronyms.foreach{case (phrase, acronym) => Acronym.abbreviate(phrase) should equal(acronym)}
   }
 }