Scala micro test lib

gistfile1.scala

//@kikito's micro test lib, simply awesome! http://stackoverflow.com/q/7866079/462015

class AssertException(msg: String) extends Exception(msg: String)

def assertThrows[E](f: => Unit)(implicit eType:ClassManifest[E]) {
    try {
        f
    } catch {
        case e: Exception =>
            if (eType.erasure.isAssignableFrom(e.getClass)) { return }
    }
    throw new AssertException("Expected error of type " + eType.erasure.getName )
}

def assert(condition: Boolean, message: String) {
    if(!condition) { throw new AssertException(message) }
}

def assertNot(condition: Boolean, message: String) {
    assert(!condition, message)
}

// assertThrows tests
assertThrows[NullPointerException] { throw new NullPointerException() }
assertThrows[Exception] { throw new NullPointerException() }
assertThrows[AssertException] { assertThrows[Exception]{ } }

// assert tests
assertThrows[AssertException] { assert(1 > 2, "Maths don't work") }
assert(1 <3 -1, "1 loves minus 1")

// asertNot tests
assertThrows[AssertException] { assertNot(1 < 2, "Maths still don't work") }
assertNot(2 <3 -1, "2 does (not) love -1")