Variables

It is essential in SpecK to create fields only for method arguments of the tested actions and constructor arguments used by subject creation. One could also declare fields for other variables necessary in certain tests, however, this would break locality. Instead, SpecK offers the GivenVars method and the Vars test context property to pass objects between delegates:

decimal Amount;

BankAccountSpec()
{
  Specify (x => x.Calculate(Amount))
      .DefaultCase (_ => _
           .GivenVars (x => new { MyAmount = 10m })
           .Given (x => Amount = x.Vars.MyAmount)
           // ...
}