libraryDependencies += "org.scalatestplus.play" %% "scalatestplus-play" % "5.1.0" % Test import org.scalatestplus.play.PlaySpec import org.scalatestplus.play.guice.GuiceOneAppPerSuite class CalculatorSpec extends PlaySpec with GuiceOneAppPerSuite { "Calculator" must { "add two numbers correctly" in { val calculator = app.injector.instanceOf[Calculator] val result = calculator.add(2, 3) result mustBe 5 } "subtract two numbers correctly" in { val calculator = app.injector.instanceOf[Calculator] val result = calculator.subtract(5, 3) result mustBe 2 } "multiply two numbers correctly" in { val calculator = app.injector.instanceOf[Calculator] val result = calculator.multiply(2, 3) result mustBe 6 } "divide two numbers correctly" in { val calculator = app.injector.instanceOf[Calculator] val result = calculator.divide(6, 3) result mustBe 2 } } }