Jasmine for C# and/or Java

Question

Jasmine is a nice unit testing framework for JavaScript. It not only tests your code, it provides a nice way to document it by:

• Using a fluent BDD-ish way to define tests that in itself almost reads like a documentation
• The test report reads like a documentation too

I'm wondering if anything comparable exists for C# and/or Java.

Answer 1

I just came across NJasmine on GitHub. I've never used it but thought this might help others like myself that want the awesome of Jasamine in C# unit tests.

From the GitHub:

NJasmine is a RSpec-ish test language inspired by the javascript test library Jasmine (https://github.com/fschwiet/DreamNJasmine) for C# / .Net programming.

given("some preconditions", () => {

    var range = 10;

    when("the system under test is ran", () => {

        var sut = new SystemUnderTest();

        bool score = arrange(() => sut.Fire(range));

        then("win!", () => {

            expect(() => score);
        });
    });
});

Available on Nuget: http://nuget.org/List/Packages/NJasmine

Again, I can't vouch for this as I haven't used it, but I hope this will help others make informed decisions.

HTH

Answer 2

JUnit 5 will be BDD-like, with @DisplayName, @Nested, and so on. You can have a look at the documentation.

The GA release is not here yet, but it should arrived soon (announced for late 2016).

Answer 3

Oleaster is a Java testing framework with clean simple syntax, extensively using Java 8 arrow functions. It is executed using JUnit runner.

Code sample from hompage:

@RunWith(OleasterRunner.class)
public class OleasterIntroductionTest {{
    describe("A suite", () -> {
        it("contains a spec with an expectation", () -> {
            expect(40 + 2).toEqual(42);
        });
    });
}}

Answer 4

A very popular framework for testing Java (and Groovy) is Spock, whose tests also read like written specifications.

Answer 5

Have a look at Cucumber-JVM for implementing BDD. It is Java based but also works with JVM-based languages (Scala, Groovy).

If using a continuous integration system such as Jenkins, there is a reporting plugin called Cucumber Reports available.

Answer 6

An equivalent for Java would be JBehave

Answer 7

Ginkgo4j is a port of Ruby's RSpec BDD.

@RunWith(Ginkgo4jRunner.class)
public class MyTests {

  private SystemUnderTest systemUnderTest;

  private int range;

  private bool score;

  {
    Describe("SystemUnderTest", () -> {
      BeforeEach(() -> {
        systemUnderTest = new SystemUnderTest();
      });
      Context("#Fire", () -> {
        JustBeforeEach(() -> {
          score = systemUnderTest.Fire(range));
        });
        Context("given a range", () -> {
          BeforeEach(() -> {
            range = 10;
          });
          It("should return a winning score!", () => {
            assertThat(score, is(true));
          });
      });
    });
  }
}