Should VS must ScalaTest?
should and must are the same semantically. But it’s not about better documentation, it’s basically just down to personal stylistic preference (I prefer must for example). can is a little different. You can’t (nomen omen) use it directly as a matcher, it’s only available in a test descriptor.
Is instanceof Scala?
6 Answers. Scala is not Java. Scala just does not have the operator instanceof instead it has a parametric method called isInstanceOf[Type] . You might also enjoy watching a ScalaTest Crash Course.
What is Scalactic?
Scalactic provides an “ Either with attitude” named Or , designed for functional error handling. Or gives you more convenient chaining of map and flatMap calls (and for expressions) than Either and, when, combined with Every , enables you to accumulate errors. Every is an ordered collection of one or more elements.
How do I add ScalaTest to SBT?
Testing Scala with sbt and ScalaTest on the Command Line
- On the command line, create a new directory somewhere.
- cd into the directory and run sbt new scala/scalatest-example.g8.
- Name the project ScalaTestTutorial .
- The project comes with ScalaTest as a dependency in the build.
- cd into the directory and run sbt test .
What is FunSuite in Scala?
trait FunSuite extends Suite A suite of tests in which each test is represented as a function value. The “ Fun ” in FunSuite stands for “function.” Here’s an example FunSuite : import org.scalatest.FunSuite.
What is ScalaTest Maven plugin?
The ScalaTest Maven plugin allows you to run ScalaTest tests through Maven without requiring @RunWith(classOf[JUnitRunner]) annotations and access all functionality of the ScalaTest Runner , including parallel execution and multiple reporters.
Is ScalaTest open source?
ScalaTest is a free, open-source testing toolkit for Scala and Java programmers.
What is ScalaTest sbt?
sbt is built for Scala and Java projects. It is the build tool of choice for 93.6% of the Scala developers (2019). One of the examples of Scala-specific feature is the ability to cross build your project against multiple Scala versions.
What is FunSuite?
A suite of tests in which each test is represented as a function value. The “ Fun ” in FunSuite stands for “function.” Here’s an example FunSuite : import org.scalatest.FunSuite.
Which is an example of a test style in Scala?
Scalatest supports a variety of testing styles. The examples have been using FunSpec so far. Let’s create another example with FreeSpec, another test style that’s also defined in Scalatest. Start by defining a Person class with a fullName () method that concatenates the firstName and lastName.
Where to mark ScalaTest as a test dependency?
Scalatest should be specified as a test dependency in your build.sbt file: You should mark Scalatest as a test dependency, so it’s not included in your JAR files. Let’s create a CardiB object with a couple of methods.
How to use ScalaTest as a domain specific language?
ScalaTest provides a domain specific language (DSL) for expressing assertions in tests using the word should. Just mix in should.Matchers, like this: import org.scalatest._ import matchers.should._ class ExampleSpec extends AnyFlatSpec with Matchers {
How many ways to check equality in ScalaTest?
ScalaTest matchers provides five different ways to check equality, each designed to address a different need.