Sunday, September 17, 2017

Super Simple ScalaTest test

Super Simple ScalaTest test


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This the basic tutorial from the ScalaTest homepage. Here we begin by demostrating a very simple ScalaTest test of the Stack class.

First make a file called ./scr/test/scala/ExampleSpec.scala

import collection.mutable.Stack 
import org.scalatest._ 
 
class ExampleSpec extends FlatSpec with Matchers {
 
  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be (2)
    stack.pop() should be (1)
  }
 
  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]
    a [NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    }
  }
}

Second make a file called ./project/build.properties

sbt.version=0.13.12

Third make a file called ./build.sbt

name := "ExampleSpec"
 
version := "1.0"
scalaVersion := "2.11.7"
 
 
libraryDependencies += "org.scalactic" %% download file now










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