Example unit test using scala-test FlatSpecLike and other generally useful traits.

ExampleUnitTest.scala

//package `your package`

import org.scalatest.{FlatSpecLike, GivenWhenThen, Matchers}

class ExampleUnitTest extends FlatSpecLike with GivenWhenThen with Matchers {

  "A service/class that you want to test" should "provide some result/expectation" in {
    Given("Some service/class")
    def service(i: Int) = i * 2

    When("some data/scenario occurs")
    val result = service(2)

    Then("we check the result")
    val expected = 4
    result shouldEqual expected

    And("maybe check some more results")
    assert(result != 0, "if this were to fail, this message would be printed")

  }

  it should "also provide some other result/expectation" in {
    //nothing example using standard assert
    assert(true)
  }

  it should "fail if hits fail() function" ignore {
    fail("if not ignored this test will run and fail")
  }

}