scala import org.scalatest._ class MyTest extends FlatSpec with Matchers { "A calculator" should "add two numbers correctly" in { val result = 2 + 3 result should equal (5) } it should "subtract two numbers correctly" in { val result = 5 - 3 result should equal (2) } } shell java -cp <jar_path> org.scalatest.run <test_class_name> scala libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.0" % "test"