Bekesi - Intro to ScalaTest
https://www.youtube.com/watch?v=2yfq_xHcVV0

http://tudorzgureanu.com/whats-new-in-scalatest-3/

samples:
https://github.com/ScaleChain/scalechain/blob/master/scalechain-script/src/test/scala/io/scalechain/blockchain/script/ArithmeticSpec.scala

intercept:
test("...") {
    intercept[NoSuchElementException] {
        Set.empty.head
    }
}

Inside (? mockito sugar)

// For example, given the following case classes:
case class Address(street: String, city: String, state: String, zip: String)
case class Name(first: String, middle: String, last: String)
case class Record(name: Name, address: Address, age: Int)
// you could write
inside (rec) { case Record(name, address, age) =>
    inside (name) {case Name(first, middle, last) =>
        first should be ("Sally")
        middle should be ("Ann")
        last should be ("Jones")
    }
    inside (address) { case Address(street, city, state, zip) =>
        street should startWith ("25")
        city should endWith ("Angeles")
        state should equal ("CA")
        zip should be ("12345")
    }
    age should be < 99
}