Test.QuickSpec.Signature

Functions for constructing and analysing signatures.

Documentation

class Signature a where

The class of things that can be used as a signature.

Methods

signature :: a -> Sig

Instances

Signature Sig

Signature a => Signature [a]

data Sig

A signature.

Constructors

Sig

Fields

constants :: TypeRel Constant

variables :: TypeRel Variable

total :: TypeMap Gen

partial :: TypeMap Gen

observers :: TypeMap Observer

ords :: TypeMap Observer

witnesses :: TypeMap Witnessed

maxDepth_ :: First Int

maxSize_ :: First Int

minTests_ :: First Int

maxQuickCheckSize_ :: First Int

Instances

Show Sig

Typeable Sig

Monoid Sig

Signature Sig

maxDepth :: Sig -> Int

maxSize :: Sig -> Int

updateDepth :: Int -> Sig -> Sig

updateSize :: Int -> Sig -> Sig

minTests :: Sig -> Int

maxQuickCheckSize :: Sig -> Int

data Used

Constructors

Used Witness [Symbol]

Instances

Show Used

uses :: Sig -> Witness -> Used

data Summary

Constructors

Summary

Fields

summaryFunctions :: [Symbol]

summaryBackground :: [Symbol]

summaryVariables :: [Symbol]

summaryObserved :: [TypeRep]

summaryUninhabited :: [Used]

summaryNoVars :: [TypeRep]

summaryUntestable :: [TypeRep]

summaryDepth :: Maybe Int

summarySize :: Maybe Int

summaryTests :: Maybe Int

summaryQuickCheckSize :: Maybe Int

Instances

Show Summary

sigToHaskell :: Signature a => a -> String

summarise :: Sig -> Summary

data Observer a

Constructors

forall b . Ord b => Observer (PGen (a -> b))

observe :: Typeable a => a -> Sig -> Observer a

emptySig :: Sig

constantSig :: Typeable a => Constant a -> Sig

variableSig :: forall a. Typeable a => [Variable a] -> Sig

totalSig :: forall a. Typeable a => Gen a -> Sig

partialSig :: forall a. Typeable a => Gen a -> Sig

observerSig :: forall a. Typeable a => Observer a -> Sig

typeSig :: Typeable a => a -> Sig

ordSig :: Typeable a => Observer a -> Sig

withDepth :: Int -> Sig

If withDepth n is in your signature, QuickSpec will consider terms of up to depth n (the default is 3).

withSize :: Int -> Sig

If withSize n is in your signature, QuickSpec will consider terms of up to size n (the default is 100).

withTests :: Int -> Sig

If withTests n is in your signature, QuickSpec will run at least n tests (the default is 500).

withQuickCheckSize :: Int -> Sig

If withQuickCheckSize n is in your signature, QuickSpec will generate test data of up to size n (the default is 20).

without :: Signature a => a -> [String] -> Sig

sig `without` xs will remove the functions in xs from the signature sig. Useful when you want to use prelude but exclude some functions. Example: prelude (undefined :: A) `without` ["head", "tail"].

undefinedSig :: forall a. Typeable a => String -> a -> Sig

primCon0 :: forall a. Typeable a => Int -> String -> a -> Sig

primCon1 :: forall a b. (Typeable a, Typeable b) => Int -> String -> (a -> b) -> Sig

primCon2 :: forall a b c. (Typeable a, Typeable b, Typeable c) => Int -> String -> (a -> b -> c) -> Sig

primCon3 :: forall a b c d. (Typeable a, Typeable b, Typeable c, Typeable d) => Int -> String -> (a -> b -> c -> d) -> Sig

primCon4 :: forall a b c d e. (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e) => Int -> String -> (a -> b -> c -> d -> e) -> Sig

primCon5 :: forall a b c d e f. (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Typeable f) => Int -> String -> (a -> b -> c -> d -> e -> f) -> Sig

blind0 :: forall a. Typeable a => String -> a -> Sig

A constant.

blind1 :: forall a b. (Typeable a, Typeable b) => String -> (a -> b) -> Sig

A unary function.

blind2 :: forall a b c. (Typeable a, Typeable b, Typeable c) => String -> (a -> b -> c) -> Sig

A binary function.

blind3 :: forall a b c d. (Typeable a, Typeable b, Typeable c, Typeable d) => String -> (a -> b -> c -> d) -> Sig

A ternary function.

blind4 :: forall a b c d e. (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e) => String -> (a -> b -> c -> d -> e) -> Sig

A function of arity 4.

blind5 :: forall a b c d e f. (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Typeable f) => String -> (a -> b -> c -> d -> e -> f) -> Sig

A function of arity 5.

ord :: (Ord a, Typeable a) => a -> Sig

observing :: Observer a -> a -> Observer a

background :: Signature a => a -> Sig

Mark all the functions in a signature as background functions.

QuickSpec will only print a law if it contains at least one non-background function.

The functions in e.g. prelude are declared as background functions.

primVars0 :: forall a. Typeable a => Int -> [(String, PGen a)] -> Sig

primVars1 :: forall a b. (Typeable a, Typeable b) => Int -> [(String, PGen (a -> b))] -> Sig

primVars2 :: forall a b c. (Typeable a, Typeable b, Typeable c) => Int -> [(String, PGen (a -> b -> c))] -> Sig

gvars :: forall a. Typeable a => [String] -> Gen a -> Sig

Similar to vars, but takes a generator as a parameter.

gvars xs (arbitrary :: Gen a) is the same as vars xs (undefined :: a).

gvars0 :: forall a. Typeable a => [String] -> Gen a -> Sig

Similar to vars, but takes a generator as a parameter.

gvars xs (arbitrary :: Gen a) is the same as vars xs (undefined :: a).

gvars1 :: forall a b. (Typeable a, Typeable b) => [String] -> Gen (a -> b) -> Sig

gvars2 :: forall a b c. (Typeable a, Typeable b, Typeable c) => [String] -> Gen (a -> b -> c) -> Sig

gvars' :: forall a. Typeable a => [(String, Gen a)] -> Sig

For Hipsters only :)

vars :: forall a. (Arbitrary a, Typeable a) => [String] -> a -> Sig

Declare a set of variables of a particular type.

For example, vars ["x","y","z"] (undefined :: Int) defines three variables, x, y and z, of type Int.

vars0 :: forall a. (Arbitrary a, Typeable a) => [String] -> a -> Sig

Declare a set of variables of a particular type.

For example, vars ["x","y","z"] (undefined :: Int) defines three variables, x, y and z, of type Int.

vars1 :: forall a b. (CoArbitrary a, Typeable a, Arbitrary b, Typeable b) => [String] -> (a -> b) -> Sig

vars2 :: forall a b c. (CoArbitrary a, Typeable a, CoArbitrary b, Typeable b, Arbitrary c, Typeable c) => [String] -> (a -> b -> c) -> Sig

con :: (Ord a, Typeable a) => String -> a -> Sig

A constant. The same as fun0.

fun0 :: (Ord a, Typeable a) => String -> a -> Sig

A constant. The same as con.

fun1 :: (Typeable a, Typeable b, Ord b) => String -> (a -> b) -> Sig

A unary function.

fun2 :: (Typeable a, Typeable b, Typeable c, Ord c) => String -> (a -> b -> c) -> Sig

A binary function.

fun3 :: (Typeable a, Typeable b, Typeable c, Typeable d, Ord d) => String -> (a -> b -> c -> d) -> Sig

A ternary function.

fun4 :: (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Ord e) => String -> (a -> b -> c -> d -> e) -> Sig

A function of four arguments.

fun5 :: (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Typeable f, Ord f) => String -> (a -> b -> c -> d -> e -> f) -> Sig

A function of five arguments.

observer1 :: (Typeable a, Typeable b, Ord b) => (a -> b) -> Sig

An observation function of arity 1.

observer2 :: (Arbitrary a, Typeable a, Typeable b, Typeable c, Ord c) => (a -> b -> c) -> Sig

An observation function of arity 2.

observer3 :: (Arbitrary a, Arbitrary b, Typeable a, Typeable b, Typeable c, Typeable d, Ord d) => (a -> b -> c -> d) -> Sig

An observation function of arity 3.

observer4 :: (Arbitrary a, Arbitrary b, Arbitrary c, Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Ord e) => (a -> b -> c -> d -> e) -> Sig

An observation function of arity 4.

testable :: Typeable a => Sig -> a -> Bool

constantApplications :: forall a. Typeable a => Sig -> Constant a -> [Witness]

constantArgs :: forall a. Typeable a => Sig -> Constant a -> [Witness]

constantRes :: forall a. Typeable a => Sig -> Constant a -> Witness

saturatedTypes :: Sig -> [Witness]

inhabitedTypes :: Sig -> [Witness]

argumentTypes :: Sig -> [Witness]

variableTypes :: Sig -> [Witness]

witnessArrow :: Typeable a => Sig -> a -> Maybe (Witness, Witness)

lhsWitnesses :: Typeable a => Sig -> a -> [Witness]

findWitness :: Sig -> TypeRep -> Witness

lookupWitness :: Sig -> TypeRep -> Maybe Witness

disambiguate :: Sig -> [Symbol] -> Symbol -> Symbol

constantSymbols :: Sig -> [Symbol]

symbols :: Sig -> [Symbol]

variableSymbols :: Sig -> [Symbol]