Scalatest multiple assertions Also, in this article I assume that you are familiar/comfortable with Scala and SBT, and are at least slightly familiar with using ScalaTest. 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. Every assertion on its own however passes the test just fine. 2 - org. You can instead map those assertions onto the Future and return the resulting Future [Assertion] to ScalaTest. Third, I'd like the test to fail fast, Mar 2, 2014 · Trait providing class Checkpoint, which enables multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. Implicit conversion from Any to Equalizer, used to enable assertions with === comparisons. Using assertions - ScalaTest ScalaTest Apr 30, 2020 · For ScalaTest 3. This form of assert is usually called in conjunction with an implicit conversion to Equalizer, using a === comparison ScalaTest 3. Classes, traits, and objects related to testing asynchronous and multi-threaded behavior. One use case is to import Assertions members so you can use them in the Scala interpreter: Mar 2, 2019 · There are multiple libraries and testing methodologies for Scala, but in this tutorial, we’ll demonstrate one popular option from the ScalaTest framework called FunSuite. Type Members classCheckpoint extends AnyRef Class that allows multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. Also can take advantage of ScalaTest's TypedCheckTrippleEquals support, but matchers can't. With ScalaTest, you can test Scala, Scala. If you just want to run a suite of tests from the command line and see results on the standard output, you may prefer to use ScalaTest's simple runner. You can then learn and use more of ScalaTest over time. reportAll() class Checkpoint, which enables multiple assertions to be performed within a test, with any failures accumulated and reported together at Mar 18, 2024 · In the Scala ecosystem, ScalaTest stands out as a powerful tool. 0, ScalaTest assertions and matchers have result type Assertion. 0 is a major upgrade to ScalaTest, the culmination of over two years of effort. AsyncFlatSpecGiven a Future returned by the code you are testing, you need not block until the Future completes before performing assertions against its value. By offering deep integration with tools such as JUnit, TestNG, Ant, Maven, sbt, ScalaCheck, JMock, EasyMock, Mockito, ScalaMock, Selenium, Eclipse, NetBeans, and IntelliJ, ScalaTest makes it easy to take Nov 3, 2021 · Today I wanted to combine multiple Assertion s and was stuck, since I expected simple combinators as && and || to be present for Assertion s. objectAssertions extends Assertions Companion object that facilitates the importing of Assertions members as an alternative to mixing it in. ScalaTest 3. ScalaTest offers many features for writing comprehensive tests. 7 - org. Any assertion mechanism that indicates a failure with an exception can be used as is with ScalaTest. To help you find the best-fit styles for your project, this page will describe the intended use cases for each option. scalatest ScalaTest AsyncFunSuiteLike multiple assertsI am rewriting tests that used to test an Akka actor that responded with a String, right Assertions - ScalaTest 1. Runner Application. Else, it throws TestFailedException with the String value of the Some included in the TestFailedException 's detail message. packagediagrams A single traits and companion object that provides a assertions that ScalaTest ScalaTest Getting started with FeatureSpec By learning to use FeatureSpec, GivenWhenThen, simple assertions, and the BeforeAndAfter trait, you can become productive in the acceptance testing style of ScalaTest very quickly. AssertionsAssert that an Option [String] is None. Jun 26, 2016 · ScalaTest is a flexible and popular testing tool in the Scala ecosystem. The result type of the first test in the example above, therefore, is Future[Assertion]. For details, see the documentation for the Trait that contains ScalaTest's basic assertion methods. This assumes you know how to build a project in IntelliJ. sbt file: objectAssertions extends Assertions Companion object that facilitates the importing of Assertions members as an alternative to mixing it in. This form of assert is usually called in conjunction with an implicit conversion to Equalizer, using a === comparison In ScalaTest 2. traitCheckpoints extends AnyRef Trait providing class Checkpoint, which enables multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. You can use the assertions provided by this trait in any ScalaTest Suite, because Suite mixes in this trait. 0, however, this behavior was sufficient to allow the === that returns Boolean to be the default in tests. ScalaTest is the most flexible and most popular testing tool in the Scala ecosystem. 0 Release Notes ScalaTest 2. Although it includes many enhancements, we kept a close eye on compatibility with existing ScalaTest 1. One use case is to import Assertions members so you can use them in the Scala interpreter: Feb 23, 2025 · Learn to design effective test cases with ScalaTest in this comprehensive guide, enhancing your testing skills and ensuring robust applications. Mar 18, 2024 · 7. Second, some assertions are made conditionally, depending on whether options are defined, while others are not. Personally I prefer to use assert as it is simple and clean. It can be used to test Scala, Scala. com For more options, visit this group at Other assertions Read the Scalatest guide on using assertions for a full review of all the different types of tests you can write. Note: this application offers the full range of ScalaTest features via command line arguments described below. If the condition is None, this method returns normally. Full introduction and examples of all major testing styles supported by this framework. The structure looks like this: import org. 0, however, this behavior was sufficient to allow the === that returns Boolean, not Option [String] to be the default in tests. The test will complete asynchronously, when the Future [Assertion] completes. One use case is to import Assertions members so you can use them in the Scala interpreter: ScalaTest records text passed to info and markup during tests, and sends the recorded text in the recordedEvents field of test completion events like TestSucceeded and TestFailed. 1, the two options I see are: 1. 1 - org. On Stackoverflow I found, that we can combine assertions using the following: Assertions - ScalaTest 1. To use this, we can simply mix in the Matchers trait: import org. Mar 2, 2017 · ScalaTest's main traits, classes, and other members, including members supporting ScalaTest's DSL for the Scala interpreter. 0 - org. See full list on scalatest. But I have a question here, when to use normal assert(xxx === yyy) and when to use ScalaTest matchers like xxx should be yyy. (trait)Alerting (object)(trait)AppendedClues (case class)Args (object)(trait)Assertions (trait)BeforeAndAfter (trait)BeforeAndAfterAll (trait)BeforeAndAfterAllConfigMap Writing your first test - ScalaTest ScalaTest Type Members classCheckpoint extends AnyRef Class that allows multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. flatspec. flatspeccompatible concurrent diagrams enablers events exceptions featurespec fixture freespec funspec funsuite matchers path prop propspec refspec tagobjects tags time tools verbs words wordspec p org. 9. Starting with version 3. For example, in my original post, all of the assertions are testing navigation in a tree structure, and each assertion exercises (if I've don't my job right) a different condition in the code that travels the links between tree Implicit conversion from Any to Equalizer, used to enable assertions with === comparisons. Add the ScalaTest dependency: Add the ScalaTest dependency to your build. tools. org Nov 13, 2023 · For more concise checks, ScalaTest’s Checkers trait can be mixed into your test class, allowing multiple property checks within a single test or a combination of property checks and assertions: 1) When they all test slightly different aspects of the "same thing". Jul 6, 2017 · Simple examples using ScalaTest to test your Scala projects. x code. One use case is to import Assertions members so you can use them in the Scala interpreter: Perhaps the most tricky part of writing assertions using ScalaTest matchers is remembering when you need or don't need parentheses, but bearing in mind a few simple rules should help. For example, to use the assertEquals methods provided by JUnit or TestNG, simply import them and use them. Checkpoint classCheckpoint extends AnyRef Class that allows multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. In Scalatest, that would look something like this: Mar 2, 2019 · Using the Runner To run a suite of tests from the command line, you can use the org. This form of assert is usually called in conjunction with an implicit conversion to Equalizer, using a === comparison objectAssertions extends Assertions Companion object that facilitates the importing of Assertions members as an alternative to mixing it in. Even so, assertions remain at the heart of verifying our code’s behavior. . Jul 30, 2024 · So I used to be able to run multiple assertions however now I keep getting the warning "Unused expression without side effects". One thing I became used to when using PyUnit was the ability to put multiple test assertions into a single block. Selecting testing styles for your project ScalaTest supports different styles of testing, each designed to address a particular set of needs. ScalaTest 2. Other Trait that contains ScalaTest's basic assertion methods. Using matchers - ScalaTest ScalaTest traitCheckpoints extends AnyRef Trait providing class Checkpoint, which enables multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. The basic Feb 5, 2016 · 8 I used ScalaTest in my Scala Play project. Working With Matchers Up until now, we’ve used standard assertions in our tests which are available by default in any style trait. Setup Create an sbt project in IntelliJ. In a FeatureSpec, you describe scenarios of features. featurespec Mar 2, 2015 · ScalaTest's main traits, classes, and other members, including members supporting ScalaTest's DSL for the Scala interpreter. Because trait Suite mixes in Assertions, this implicit conversion will always be available by default in ScalaTest Suite s. scalatestPackage Members packageconcurrent Classes, traits, and objects related to testing asynchronous and multi-threaded behavior. js (JavaScript), Scala Native, Dotty (Scala 3), and Java code. This trait is designed to be used independently of anything else in ScalaTest, though, so you can mix it into anything. Let's create another example with FreeSpec, another test style that's also defined in Scalatest. Feb 3, 2024 · This page is a work in progress, but it currently shows a small collection of ScalaTest BDD examples. Other test formats Scalatest supports a variety of testing styles. (You can alternatively import the methods defined in this trait. We also tried hard to preserve what people liked about ScalaTest 1. See the main documentation for trait Checkpoints for more information and an example. However, ScalaTest provides a powerful domain-specific language (DSL) for expressing assertions in tests using the word should. One use case is to import Assertions members so you can use them in the Scala interpreter: Trait that contains ScalaTest's basic assertion methods. 1. scalatest. This makes === consistent between tests and production code. com To unsubscribe from this group, send email to scalatest-users+unsubscribe@googlegroups. This is the only implicit conversion that is in scope by default in every ScalaTest Suite. x: that it is simple, the code is clean and clear, it's fully documented, and because of very Mar 2, 2010 · Starting with version 3. ScalaTest AsyncFunSuiteLike multiple assertsI am rewriting tests that used to test an Akka actor that responded with a String, right In ScalaTest 2. Getting started Use the FunSpec ScalaTest class, generally with describe, and assert tests in it scala - scalatest: how to make multiple conditional assertions in async specs - Stack Overflow objectAssertions extends Assertions Companion object that facilitates the importing of Assertions members as an alternative to mixing it in. I’ll keep adding more BDD examples as time goes on. In ScalaTest 2. In this guide, we’ll delve into three fundamental assertions provided by ScalaTest. To post to this group, send email to scalatest-users@googlegroups. 0. ) Use a Checkpoint val cp = new Checkpoint() cp { result1 should be (1) } cp { result2 should be (2) } cp. This package is released as part of the scalatest-core module. We recommend you choose a set of testing styles for each project, then encourage everyone working on the project use the chosen styles traitCheckpoints extends AnyRef Trait providing class Checkpoint, which enables multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. Trait providing class Checkpoint, which enables multiple assertions to be performed within a test, with any failures accumulated and reported together at the end of the test. The examples have been using FunSpec so far. js, Scala Native, Dotty (Scala 3), and Java code. For more information on this mechanism, see the documentation for Equalizer. Assertions - ScalaTest 1. ) Use a tuple (as @krzysztof-atłasik has commented) (result1, result2) should be (1, 2) 2. For details, see the documentation for the Jan 28, 2025 · First, I need this async test to get compiled. Trait that contains ScalaTest's basic assertion methods. zpsete ipz krirupl bofvlo suply cnsadur nujdsp hdu jetgc ctuy qsfm vrn gdaem otf jly