Welcome to specs!

11/28/2008	specs 1.4.1	NEW: Upgraded to Scala-2.7.2. Compatible with ScalaCheck 1.5. Added doFirst/doLast methods to execute actions before and after executing all the examples of a system. Added precise failure messages. Added new matchers (containInOrder for iterables, havePairs matcher for Maps). Added one-liners for ScalaCheck properties. Used Manifests to simplify the Throwable matchers and the JMock declarations. Fixed  issue 45  which introduced unnecessary API breaks. (Other fixes and improvements
7/21/2008	specs 1.3.1	NEW: Added tags to include and exclude examples from specs at execution time. (Other fixes and improvements).
6/20/2008	specs 1.3.0	NEW: repeated examples, anonymous examples, one liner methods for jMock, capturing parameters for jMock, detailed differences using the Edit distance. Fixed  issue 29  and time reporting in the console
5/27/2008	specs 1.2.9	NEW: Added contexts for better specification structuration (see the reworked stack specification sample)
5/24/2008	specs 1.2.8	NEW: added some FileMatchers. Defined a reusable SpecsMatchers trait to be able to reuse specs matchers outside of a specification. Added a -ns or --nostacktrace option to the ConsoleRunner to remove stacktraces from the console output. (Other fixes and improvements)

specs is a Behaviour-Driven-Design framework which provides:

• a simple and typed language to create specifications (your first specification in 5 minutes)

object helloWorld extends Specification {
  "'hello world' has 11 characters" in {
     "hello world".size mustEqual 11
  }
  "'hello world' matches 'h.* w.*'" in {
     "hello world" must beMatching("h.* w.*")
  }
}

• lots of matchers to specify code properties:

 "myString" must beMatching("Str.*")

 // or to specify xml pieces using XPath-like operators: 
 <a><b><c><d></d></c></b></a> must \\("c").\("d")

• an integration with JUnit to so that you can run and report your tests using your existing infrastructure (you can also run the tests in the console or generate an xml file with the results)
• an easy way to specify combinatorial properties through an integration with Scalacheck:

// generates 500 different mail addresses
mailAddresses must pass { address =>
  address must beMatching(companyPattern)
}

• an integration with jMock2:

object SendSpec extends Specification with JMocker {
  "A Send service" should {
    "publish data" in {
      // define a mock
      val mock = mock[Mailer]
      // define expectations 
      expect {
        one(mock).send(any[Mail])
      }
      // use the mock, the expectations are automatically checked at the end of the example 
      val sendService = new SendService(mock)
      sendService.publishData
    }
  }
}

• a pattern-like matcher:

compositeSpec.suts must beLike { case x::y::Nil => (x, y) == (okSpec.suts.head, okSpec.suts.head) }

• lots of possibilities to structure and compose specifications

object compositeSpec extends Specification {
  "A composite spec" isSpecifiedBy (okSpec, koSpec)
}

• the possibility to reuse examples across specs (see the stackSpec example):

"A stack below full capacity" ->-(belowCapacity) should {
    behave like "A non-empty stack below full capacity" 
    "add to the top when sent #push" in {
      stack push 3
      stack.top mustBe 3
    }
  }

• data tables to group several data examples at once:

object addOperationSpec extends Specification with org.specs.util.DataTables {
  "provide an add operation" in {
     "a" | "b" | "result" |>
      1  !  2  !   3      |  
      5  !  2  !   7      |  
      3  !  0  !   3      | { (a, b, c) => { a + b must_== c } }
  }
}

The first time

You can download the current library distribution (or get it with Maven) and execute:

java -cp specs-1.4.1.jar;specs-1.4.1-tests.jar;scalacheck-1.5.jar;scala-library-2.7.2.jar;junit-4.4.jar;cglib-2.1_3.jar;asm-1.5.3.jar;objenesis-1.1.jar;hamcrest-all-1.1.jar;jmock-2.4.0.jar org.specs.allRunner

Then you should see the whole specification for the specs project, ending with:

Total for specification "The specs and unit tests for the specs project":
Finished in 0 second, 156 ms                                             
640 examples, 6961 expectations, 0 failure, 0 error                                                            

tested with Scala 2.7.2-final

Happy specs!