Initial Commit

scala/current

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+hello-world

scala/hello-world/README.md

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+# Hello World
+
+Write a program that greets the user by name, or by saying "Hello, World!" if no name is given.
+
+["Hello, World!"](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program) is the traditional first program for beginning programming in a new language.
+
+**Note:** You can skip this exercise by running:
+
+    exercism skip $LANGUAGE hello-world
+
+## Specification
+
+The `Hello World!` program will greet me, the caller.
+
+If I tell the program my name is Alice, it will greet me by saying "Hello, Alice!".
+
+If I neglect to give it my name, it will greet me by saying "Hello, World!"
+
+## Test-Driven Development
+
+As programmers mature, they eventually want to test their code.
+
+Here at Exercism we simulate [Test-Driven Development](http://en.wikipedia.org/wiki/Test-driven_development) (TDD), where you write your tests before writing any functionality. The simulation comes in the form of a pre-written test suite, which will signal that you have solved the problem.
+
+It will also provide you with a safety net to explore other solutions without breaking the functionality.
+
+### A typical TDD workflow on Exercism:
+
+1. Run the test file and pick one test that's failing.
+2. Write some code to fix the test you picked.
+3. Re-run the tests to confirm the test is now passing.
+4. Repeat from step 1.
+5. [Submit your solution](http://help.exercism.io/submitting-exercises.html).
+
+## Instructions
+
+Submissions are encouraged to be general, within reason. Having said that, it's also important not to over-engineer a solution.
+
+It's important to remember that the goal is to make code as expressive and readable as we can. However, solutions to the hello-world exercise will be not be reviewed by a person, but by rikki- the robot, who will offer an encouraging word.
+
+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](http://help.exercism.io/getting-started-with-scala.html).
+
+
+## Source
+
+This is a program to introduce users to using Exercism [view source](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program)

scala/hello-world/build.sbt

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+scalaVersion := "2.11.7"
+
+libraryDependencies += "org.scalatest" % "scalatest_2.11" % "2.2.5" % "test"

scala/hello-world/src/test/scala/HelloWorldTest.scala

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+import org.scalatest.{Matchers, FunSuite}
+
+class HelloWorldTest extends FunSuite with Matchers {
+  test("Without name") {
+    HelloWorld.hello() should be ("Hello, World!")
+  }
+
+  test("with name") {
+    HelloWorld.hello("Jane") should be ("Hello, Jane!")
+  }
+
+  test("with umlaut name") {
+    HelloWorld.hello("Jürgen") should be ("Hello, Jürgen!")
+  }
+}