Copyright	(C) 2019 Edsko de Vries
License	BSD-style (see the file LICENSE)
Maintainer	Stevan Andjelkovic <stevan.andjelkovic@strath.ac.uk>
Stability	provisional
Portability	non-portable (GHC extensions)
Safe Haskell	None
Language	Haskell2010

Test.StateMachine.Labelling

Description

This module exports helpers that are useful for labelling properties.

Synopsis

data Predicate a b = Predicate {
- predApply :: a -> Either b (Predicate a b)
- predFinish :: Maybe b
}
predicate :: (a -> Either b (Predicate a b)) -> Predicate a b
maximum :: forall a b. Ord b => (a -> Maybe b) -> Predicate a b
classify :: forall a b. [Predicate a b] -> [a] -> [b]
data Event model cmd resp (r :: Type -> Type) = Event {
- eventBefore :: model r
- eventCmd :: cmd r
- eventAfter :: model r
- eventResp :: resp r
}
execCmds :: forall model cmd m resp. StateMachine model cmd m resp -> Commands cmd resp -> [Event model cmd resp Symbolic]
execHistory :: forall model cmd m resp. StateMachine model cmd m resp -> History cmd resp -> [Event model cmd resp Concrete]

Documentation

Constructors

Predicate
Fields predApply :: a -> Either b (Predicate a b) Given an `a`, either successfully classify as `b` or continue looking predFinish :: Maybe b End of the string The predicate is given a final chance to return a value.

Instances

Functor (Predicate a) Source #
Instance details Defined in Test.StateMachine.Labelling Methods fmap :: (a0 -> b) -> Predicate a a0 -> Predicate a b # (<$) :: a0 -> Predicate a b -> Predicate a a0 #

Construct simply predicate that returns Nothing on termination

maximum :: forall a b. Ord b => (a -> Maybe b) -> Predicate a b Source #

Maximum value found, if any

classify :: forall a b. [Predicate a b] -> [a] -> [b] Source #

Do a linear scan over the list, returning all successful classifications

data Event model cmd resp (r :: Type -> Type) Source #

Constructors

Event
Fields eventBefore :: model r eventCmd :: cmd r eventAfter :: model r eventResp :: resp r

Instances

(Show (model r), Show (cmd r), Show (resp r)) => Show (Event model cmd resp r) Source #
Instance details Defined in Test.StateMachine.Labelling Methods showsPrec :: Int -> Event model cmd resp r -> ShowS # show :: Event model cmd resp r -> String # showList :: [Event model cmd resp r] -> ShowS #

execCmds :: forall model cmd m resp. StateMachine model cmd m resp -> Commands cmd resp -> [Event model cmd resp Symbolic] Source #

execCmds is just the repeated form of execCmd.

execHistory :: forall model cmd m resp. StateMachine model cmd m resp -> History cmd resp -> [Event model cmd resp Concrete] Source #