scala_scalatest.md

Scala - Bootstrapping with ScalaTest

Prerequisites: JDK - please download and install from AdoptOpenJDK

Steps

1. Install sbt:

   Mac:

   $ brew install sbt@1

   Windows: Install msi from here

   Linux: Installation instructions

2. Create new project from seed:

   $ sbt new sbt/scala-seed.g8

   After installing everything, you will be prompted for the project name:

   A minimal Scala project.
   
   name [Scala Seed Project]:

   Enter kata and then cd kata

3. You will find an example source file at src/main/scala/example/Hello.scala and an example test file at src/test/scala/example/HelloSpec.scala.

4. You may run the tests with:

   sbt test

   To have sbt watch the file system for changes(run tests on save), use

   sbt ~test:compile

Explanation

The seed is a template that can be found here. It sets up a new sbt project with some sensible defaults.

Structure of the project:

   ├── build.sbt // contains settings for the build, for e.g. Scala version, project version and project name
   ├── project // build support files
   │   └── Dependencies.scala // lists dependencies
   │   └── build.properties // defines sbt version
   ├── target // temporary folder for build output
   └── src
       ├── main
       │   └── scala // Scala code goes here
       └── test
           └── scala // Scala tests go here

References

• Scala language guide
• Scala for Java programmers
• sbt documentation
• ScalaTest documentation
• ScalaTest matchers